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Optimize project dir structure, add dl814_k7 proj.
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// ***************************************************************************
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// ***************************************************************************
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// Copyright 2014 - 2017 (c) Analog Devices, Inc. All rights reserved.
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//
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// In this HDL repository, there are many different and unique modules, consisting
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// of various HDL (Verilog or VHDL) components. The individual modules are
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// developed independently, and may be accompanied by separate and unique license
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// terms.
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//
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// The user should read each of these license terms, and understand the
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// freedoms and responsibilities that he or she has by using this source/core.
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//
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// This core is distributed in the hope that it will be useful, but WITHOUT ANY
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// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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// A PARTICULAR PURPOSE.
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//
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// Redistribution and use of source or resulting binaries, with or without modification
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// of this file, are permitted under one of the following two license terms:
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//
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// 1. The GNU General Public License version 2 as published by the
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// Free Software Foundation, which can be found in the top level directory
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// of this repository (LICENSE_GPL2), and also online at:
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// <https://www.gnu.org/licenses/old-licenses/gpl-2.0.html>
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//
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// OR
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//
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// 2. An ADI specific BSD license, which can be found in the top level directory
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// of this repository (LICENSE_ADIBSD), and also on-line at:
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// https://github.com/analogdevicesinc/hdl/blob/master/LICENSE_ADIBSD
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// This will allow to generate bit files and not release the source code,
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// as long as it attaches to an ADI device.
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//
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// ***************************************************************************
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// ***************************************************************************
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`timescale 1ns/100ps
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module axi_spi_engine #(
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parameter CMD_FIFO_ADDRESS_WIDTH = 4,
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parameter SYNC_FIFO_ADDRESS_WIDTH = 4,
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parameter SDO_FIFO_ADDRESS_WIDTH = 5,
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parameter SDI_FIFO_ADDRESS_WIDTH = 5,
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parameter MM_IF_TYPE = 0,
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parameter ASYNC_SPI_CLK = 0,
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parameter NUM_OFFLOAD = 0,
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parameter OFFLOAD0_CMD_MEM_ADDRESS_WIDTH = 4,
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parameter OFFLOAD0_SDO_MEM_ADDRESS_WIDTH = 4,
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parameter ID = 0,
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parameter [15:0] DATA_WIDTH = 8,
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parameter [ 7:0] NUM_OF_SDI = 1 ) (
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// Slave AXI interface
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input s_axi_aclk,
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input s_axi_aresetn,
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input s_axi_awvalid,
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input [15:0] s_axi_awaddr,
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output s_axi_awready,
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input [2:0] s_axi_awprot,
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input s_axi_wvalid,
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input [31:0] s_axi_wdata,
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input [ 3:0] s_axi_wstrb,
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output s_axi_wready,
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output s_axi_bvalid,
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output [ 1:0] s_axi_bresp,
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input s_axi_bready,
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input s_axi_arvalid,
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input [15:0] s_axi_araddr,
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output s_axi_arready,
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input [2:0] s_axi_arprot,
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output s_axi_rvalid,
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input s_axi_rready,
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output [ 1:0] s_axi_rresp,
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output [31:0] s_axi_rdata,
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// up interface
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input up_clk,
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input up_rstn,
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input up_wreq,
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input [13:0] up_waddr,
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input [31:0] up_wdata,
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output up_wack,
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input up_rreq,
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input [13:0] up_raddr,
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output [31:0] up_rdata,
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output up_rack,
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output reg irq,
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// SPI signals
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input spi_clk,
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output spi_resetn,
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input cmd_ready,
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output cmd_valid,
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output [15:0] cmd_data,
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input sdo_data_ready,
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output sdo_data_valid,
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output [(DATA_WIDTH-1):0] sdo_data,
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output sdi_data_ready,
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input sdi_data_valid,
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input [(NUM_OF_SDI * DATA_WIDTH-1):0] sdi_data,
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output sync_ready,
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input sync_valid,
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input [7:0] sync_data,
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// Offload ctrl signals
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output offload0_cmd_wr_en,
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output [15:0] offload0_cmd_wr_data,
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output offload0_sdo_wr_en,
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output [(DATA_WIDTH-1):0] offload0_sdo_wr_data,
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output offload0_mem_reset,
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output offload0_enable,
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input offload0_enabled,
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output offload_sync_ready,
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input offload_sync_valid,
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input [7:0] offload_sync_data);
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localparam PCORE_VERSION = 'h010071;
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localparam S_AXI = 0;
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localparam UP_FIFO = 1;
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wire clk;
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wire rstn;
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wire [CMD_FIFO_ADDRESS_WIDTH:0] cmd_fifo_room;
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wire cmd_fifo_almost_empty;
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wire [15:0] cmd_fifo_in_data;
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wire cmd_fifo_in_ready;
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wire cmd_fifo_in_valid;
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wire [SDO_FIFO_ADDRESS_WIDTH:0] sdo_fifo_room;
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wire sdo_fifo_almost_empty;
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wire [(DATA_WIDTH-1):0] sdo_fifo_in_data;
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wire sdo_fifo_in_ready;
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wire sdo_fifo_in_valid;
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wire sdi_fifo_out_data_msb_s;
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wire [SDI_FIFO_ADDRESS_WIDTH:0] sdi_fifo_level;
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wire sdi_fifo_almost_full;
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wire [(NUM_OF_SDI * DATA_WIDTH-1):0] sdi_fifo_out_data;
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wire sdi_fifo_out_ready;
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wire sdi_fifo_out_valid;
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wire [7:0] sync_fifo_data;
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wire sync_fifo_valid;
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wire [7:0] offload_sync_fifo_data;
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wire offload_sync_fifo_valid;
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reg up_sw_reset = 1'b1;
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wire up_sw_resetn = ~up_sw_reset;
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reg [31:0] up_rdata_ff = 'd0;
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reg up_wack_ff = 1'b0;
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reg up_rack_ff = 1'b0;
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wire up_wreq_s;
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wire up_rreq_s;
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wire [31:0] up_wdata_s;
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wire [13:0] up_waddr_s;
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wire [13:0] up_raddr_s;
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// Scratch register
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reg [31:0] up_scratch = 'h00;
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reg [7:0] sync_id = 'h00;
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reg sync_id_pending = 1'b0;
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reg [7:0] offload_sync_id = 'h00;
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reg offload_sync_id_pending = 1'b0;
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generate if (MM_IF_TYPE == S_AXI) begin
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// assign clock and reset
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assign clk = s_axi_aclk;
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assign rstn = s_axi_aresetn;
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// interface wrapper
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up_axi #(
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.AXI_ADDRESS_WIDTH (16)
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) i_up_axi (
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.up_rstn(rstn),
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.up_clk(clk),
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.up_axi_awvalid(s_axi_awvalid),
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.up_axi_awaddr(s_axi_awaddr),
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.up_axi_awready(s_axi_awready),
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.up_axi_wvalid(s_axi_wvalid),
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.up_axi_wdata(s_axi_wdata),
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.up_axi_wstrb(s_axi_wstrb),
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.up_axi_wready(s_axi_wready),
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.up_axi_bvalid(s_axi_bvalid),
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.up_axi_bresp(s_axi_bresp),
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.up_axi_bready(s_axi_bready),
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.up_axi_arvalid(s_axi_arvalid),
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.up_axi_araddr(s_axi_araddr),
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.up_axi_arready(s_axi_arready),
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.up_axi_rvalid(s_axi_rvalid),
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.up_axi_rresp(s_axi_rresp),
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.up_axi_rdata(s_axi_rdata),
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.up_axi_rready(s_axi_rready),
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.up_wreq(up_wreq_s),
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.up_waddr(up_waddr_s),
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.up_wdata(up_wdata_s),
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.up_wack(up_wack_ff),
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.up_rreq(up_rreq_s),
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.up_raddr(up_raddr_s),
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.up_rdata(up_rdata_ff),
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.up_rack(up_rack_ff)
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);
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assign up_rdata = 32'b0;
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assign up_rack = 1'b0;
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assign up_wack = 1'b0;
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end
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endgenerate
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generate if (MM_IF_TYPE == UP_FIFO) begin
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// assign clock and reset
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assign clk = up_clk;
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assign rstn = up_rstn;
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assign up_wreq_s = up_wreq;
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assign up_waddr_s = up_waddr;
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assign up_wdata_s = up_wdata;
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assign up_wack = up_wack_ff;
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assign up_rreq_s = up_rreq;
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assign up_raddr_s = up_raddr;
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assign up_rdata = up_rdata_ff;
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assign up_rack = up_rack_ff;
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end
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endgenerate
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// IRQ handling
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reg [3:0] up_irq_mask = 'h0;
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wire [3:0] up_irq_source;
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wire [3:0] up_irq_pending;
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assign up_irq_source = {
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offload_sync_id_pending,
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sync_id_pending,
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sdi_fifo_almost_full,
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sdo_fifo_almost_empty,
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cmd_fifo_almost_empty
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};
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assign up_irq_pending = up_irq_mask & up_irq_source;
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always @(posedge clk) begin
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if (rstn == 1'b0)
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irq <= 1'b0;
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else
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irq <= |up_irq_pending;
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end
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always @(posedge clk) begin
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if (rstn == 1'b0) begin
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up_wack_ff <= 1'b0;
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up_scratch <= 'h00;
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up_sw_reset <= 1'b1;
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end else begin
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up_wack_ff <= up_wreq_s;
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if (up_wreq_s) begin
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case (up_waddr_s)
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8'h02: up_scratch <= up_wdata_s;
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8'h10: up_sw_reset <= up_wdata_s;
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endcase
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end
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end
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end
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reg offload0_enable_reg;
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reg offload0_mem_reset_reg;
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wire offload0_enabled_s;
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// the software reset should reset all the registers
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always @(posedge clk) begin
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if (up_sw_resetn == 1'b0) begin
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up_irq_mask <= 'h00;
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offload0_enable_reg <= 1'b0;
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offload0_mem_reset_reg <= 1'b0;
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end else begin
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if (up_wreq_s) begin
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case (up_waddr_s)
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8'h20: up_irq_mask <= up_wdata_s;
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8'h40: offload0_enable_reg <= up_wdata_s[0];
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8'h42: offload0_mem_reset_reg <= up_wdata_s[0];
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endcase
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end
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end
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end
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always @(posedge clk) begin
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if (rstn == 1'b0) begin
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up_rack_ff <= 'd0;
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end else begin
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up_rack_ff <= up_rreq_s;
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end
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end
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generate
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if (NUM_OF_SDI > 1) begin
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// Only the first two SDI data can be recovered through AXI regmap
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assign sdi_fifo_out_data_msb_s = sdi_fifo_out_data[DATA_WIDTH+:DATA_WIDTH];
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end else begin
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assign sdi_fifo_out_data_msb_s = sdi_fifo_out_data;
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end
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endgenerate
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always @(posedge clk) begin
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case (up_raddr_s)
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8'h00: up_rdata_ff <= PCORE_VERSION;
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8'h01: up_rdata_ff <= ID;
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8'h02: up_rdata_ff <= up_scratch;
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8'h03: up_rdata_ff <= {8'b0, NUM_OF_SDI, DATA_WIDTH};
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8'h10: up_rdata_ff <= up_sw_reset;
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8'h20: up_rdata_ff <= up_irq_mask;
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8'h21: up_rdata_ff <= up_irq_pending;
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8'h22: up_rdata_ff <= up_irq_source;
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8'h30: up_rdata_ff <= sync_id;
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8'h31: up_rdata_ff <= offload_sync_id;
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8'h34: up_rdata_ff <= cmd_fifo_room;
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8'h35: up_rdata_ff <= sdo_fifo_room;
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8'h36: up_rdata_ff <= sdi_fifo_level;
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8'h3a: up_rdata_ff <= sdi_fifo_out_data[DATA_WIDTH-1:0];
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8'h3b: up_rdata_ff <= sdi_fifo_out_data_msb_s; /* store SDI's 32 bits MSB, if exists */
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8'h3c: up_rdata_ff <= sdi_fifo_out_data; /* PEEK register */
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8'h40: up_rdata_ff <= {offload0_enable_reg};
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8'h41: up_rdata_ff <= {offload0_enabled_s};
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default: up_rdata_ff <= 'h00;
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endcase
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end
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always @(posedge clk) begin
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if (up_sw_resetn == 1'b0) begin
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sync_id <= 'h00;
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sync_id_pending <= 1'b0;
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end else begin
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if (sync_fifo_valid == 1'b1) begin
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sync_id <= sync_fifo_data;
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sync_id_pending <= 1'b1;
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end else if (up_wreq_s == 1'b1 && up_waddr_s == 8'h21 && up_wdata_s[3] == 1'b1) begin
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sync_id_pending <= 1'b0;
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end
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end
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end
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always @(posedge clk) begin
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if (up_sw_resetn == 1'b0) begin
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offload_sync_id <= 'h00;
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offload_sync_id_pending <= 1'b0;
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end else begin
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if (offload_sync_fifo_valid == 1'b1) begin
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offload_sync_id <= offload_sync_fifo_data;
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offload_sync_id_pending <= 1'b1;
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end else if (up_wreq_s == 1'b1 && up_waddr_s == 8'h21 && up_wdata_s[3] == 1'b1) begin
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offload_sync_id_pending <= 1'b0;
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end
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end
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end
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generate if (ASYNC_SPI_CLK) begin
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wire spi_reset;
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ad_rst i_spi_resetn (
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.rst_async(up_sw_reset),
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.clk(spi_clk),
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.rst(spi_reset),
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.rstn()
|
||||
);
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assign spi_resetn = ~spi_reset;
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end else begin
|
||||
assign spi_resetn = ~up_sw_reset;
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end
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endgenerate
|
||||
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/* Evaluates to true if FIFO level/room is 3/4 or above */
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`define axi_spi_engine_check_watermark(x, n) \
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(x[n] == 1'b1 || x[n-1:n-2] == 2'b11)
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assign cmd_fifo_in_valid = up_wreq_s == 1'b1 && up_waddr_s == 8'h38;
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assign cmd_fifo_in_data = up_wdata_s[15:0];
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assign cmd_fifo_almost_empty =
|
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`axi_spi_engine_check_watermark(cmd_fifo_room, CMD_FIFO_ADDRESS_WIDTH);
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||||
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||||
util_axis_fifo #(
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.DATA_WIDTH(16),
|
||||
.ASYNC_CLK(ASYNC_SPI_CLK),
|
||||
.ADDRESS_WIDTH(CMD_FIFO_ADDRESS_WIDTH),
|
||||
.S_AXIS_REGISTERED(0)
|
||||
) i_cmd_fifo (
|
||||
.s_axis_aclk(clk),
|
||||
.s_axis_aresetn(up_sw_resetn),
|
||||
.s_axis_ready(cmd_fifo_in_ready),
|
||||
.s_axis_valid(cmd_fifo_in_valid),
|
||||
.s_axis_data(cmd_fifo_in_data),
|
||||
.s_axis_room(cmd_fifo_room),
|
||||
.s_axis_empty(),
|
||||
.m_axis_aclk(spi_clk),
|
||||
.m_axis_aresetn(spi_resetn),
|
||||
.m_axis_ready(cmd_ready),
|
||||
.m_axis_valid(cmd_valid),
|
||||
.m_axis_data(cmd_data),
|
||||
.m_axis_level()
|
||||
);
|
||||
|
||||
assign sdo_fifo_in_valid = up_wreq_s == 1'b1 && up_waddr_s == 8'h39;
|
||||
assign sdo_fifo_in_data = up_wdata_s[(DATA_WIDTH-1):0];
|
||||
assign sdo_fifo_almost_empty =
|
||||
`axi_spi_engine_check_watermark(sdo_fifo_room, SDO_FIFO_ADDRESS_WIDTH);
|
||||
|
||||
util_axis_fifo #(
|
||||
.DATA_WIDTH(DATA_WIDTH),
|
||||
.ASYNC_CLK(ASYNC_SPI_CLK),
|
||||
.ADDRESS_WIDTH(SDO_FIFO_ADDRESS_WIDTH),
|
||||
.S_AXIS_REGISTERED(0)
|
||||
) i_sdo_fifo (
|
||||
.s_axis_aclk(clk),
|
||||
.s_axis_aresetn(up_sw_resetn),
|
||||
.s_axis_ready(sdo_fifo_in_ready),
|
||||
.s_axis_valid(sdo_fifo_in_valid),
|
||||
.s_axis_data(sdo_fifo_in_data),
|
||||
.s_axis_room(sdo_fifo_room),
|
||||
.s_axis_empty(),
|
||||
.m_axis_aclk(spi_clk),
|
||||
.m_axis_aresetn(spi_resetn),
|
||||
.m_axis_ready(sdo_data_ready),
|
||||
.m_axis_valid(sdo_data_valid),
|
||||
.m_axis_data(sdo_data),
|
||||
.m_axis_level()
|
||||
);
|
||||
|
||||
assign sdi_fifo_out_ready = up_rreq_s == 1'b1 && up_raddr_s == 8'h3a;
|
||||
assign sdi_fifo_almost_full =
|
||||
`axi_spi_engine_check_watermark(sdi_fifo_level, SDI_FIFO_ADDRESS_WIDTH);
|
||||
|
||||
util_axis_fifo #(
|
||||
.DATA_WIDTH(NUM_OF_SDI * DATA_WIDTH),
|
||||
.ASYNC_CLK(ASYNC_SPI_CLK),
|
||||
.ADDRESS_WIDTH(SDI_FIFO_ADDRESS_WIDTH),
|
||||
.S_AXIS_REGISTERED(0)
|
||||
) i_sdi_fifo (
|
||||
.s_axis_aclk(spi_clk),
|
||||
.s_axis_aresetn(spi_resetn),
|
||||
.s_axis_ready(sdi_data_ready),
|
||||
.s_axis_valid(sdi_data_valid),
|
||||
.s_axis_data(sdi_data),
|
||||
.s_axis_room(),
|
||||
.s_axis_empty(),
|
||||
.m_axis_aclk(clk),
|
||||
.m_axis_aresetn(up_sw_resetn),
|
||||
.m_axis_ready(sdi_fifo_out_ready),
|
||||
.m_axis_valid(sdi_fifo_out_valid),
|
||||
.m_axis_data(sdi_fifo_out_data),
|
||||
.m_axis_level(sdi_fifo_level)
|
||||
);
|
||||
|
||||
generate if (ASYNC_SPI_CLK) begin
|
||||
|
||||
// synchronization FIFO for the SYNC interface
|
||||
util_axis_fifo #(
|
||||
.DATA_WIDTH(8),
|
||||
.ASYNC_CLK(ASYNC_SPI_CLK),
|
||||
.ADDRESS_WIDTH(SYNC_FIFO_ADDRESS_WIDTH),
|
||||
.S_AXIS_REGISTERED(0)
|
||||
) i_sync_fifo (
|
||||
.s_axis_aclk(spi_clk),
|
||||
.s_axis_aresetn(spi_resetn),
|
||||
.s_axis_ready(sync_ready),
|
||||
.s_axis_valid(sync_valid),
|
||||
.s_axis_data(sync_data),
|
||||
.s_axis_room(),
|
||||
.s_axis_empty(),
|
||||
.m_axis_aclk(clk),
|
||||
.m_axis_aresetn(up_sw_resetn),
|
||||
.m_axis_ready(1'b1),
|
||||
.m_axis_valid(sync_fifo_valid),
|
||||
.m_axis_data(sync_fifo_data),
|
||||
.m_axis_level()
|
||||
);
|
||||
|
||||
// synchronization FIFO for the offload command interface
|
||||
wire up_offload0_cmd_wr_en_s;
|
||||
wire [15:0] up_offload0_cmd_wr_data_s;
|
||||
|
||||
util_axis_fifo #(
|
||||
.DATA_WIDTH(16),
|
||||
.ASYNC_CLK(ASYNC_SPI_CLK),
|
||||
.ADDRESS_WIDTH(SYNC_FIFO_ADDRESS_WIDTH),
|
||||
.S_AXIS_REGISTERED(0)
|
||||
) i_offload_cmd_fifo (
|
||||
.s_axis_aclk(clk),
|
||||
.s_axis_aresetn(up_sw_resetn),
|
||||
.s_axis_ready(),
|
||||
.s_axis_valid(up_offload0_cmd_wr_en_s),
|
||||
.s_axis_data(up_offload0_cmd_wr_data_s),
|
||||
.s_axis_room(),
|
||||
.s_axis_empty(),
|
||||
.m_axis_aclk(spi_clk),
|
||||
.m_axis_aresetn(spi_resetn),
|
||||
.m_axis_ready(1'b1),
|
||||
.m_axis_valid(offload0_cmd_wr_en),
|
||||
.m_axis_data(offload0_cmd_wr_data),
|
||||
.m_axis_level()
|
||||
);
|
||||
|
||||
assign up_offload0_cmd_wr_en_s = up_wreq_s == 1'b1 && up_waddr_s == 8'h44;
|
||||
assign up_offload0_cmd_wr_data_s = up_wdata_s[15:0];
|
||||
|
||||
// synchronization FIFO for the offload SDO interface
|
||||
wire up_offload0_sdo_wr_en_s;
|
||||
wire [DATA_WIDTH-1:0] up_offload0_sdo_wr_data_s;
|
||||
|
||||
util_axis_fifo #(
|
||||
.DATA_WIDTH(DATA_WIDTH),
|
||||
.ASYNC_CLK(ASYNC_SPI_CLK),
|
||||
.ADDRESS_WIDTH(SYNC_FIFO_ADDRESS_WIDTH),
|
||||
.S_AXIS_REGISTERED(0)
|
||||
) i_offload_sdo_fifo (
|
||||
.s_axis_aclk(clk),
|
||||
.s_axis_aresetn(up_sw_resetn),
|
||||
.s_axis_ready(),
|
||||
.s_axis_valid(up_offload0_sdo_wr_en_s),
|
||||
.s_axis_data(up_offload0_sdo_wr_data_s),
|
||||
.s_axis_room(),
|
||||
.s_axis_empty(),
|
||||
.m_axis_aclk(spi_clk),
|
||||
.m_axis_aresetn(spi_resetn),
|
||||
.m_axis_ready(1'b1),
|
||||
.m_axis_valid(offload0_sdo_wr_en),
|
||||
.m_axis_data(offload0_sdo_wr_data),
|
||||
.m_axis_level()
|
||||
);
|
||||
|
||||
assign up_offload0_sdo_wr_en_s = up_wreq_s == 1'b1 && up_waddr_s == 8'h45;
|
||||
assign up_offload0_sdo_wr_data_s = up_wdata_s[DATA_WIDTH-1:0];
|
||||
|
||||
// synchronization FIFO for the Offload SYNC interface
|
||||
util_axis_fifo #(
|
||||
.DATA_WIDTH(8),
|
||||
.ASYNC_CLK(ASYNC_SPI_CLK),
|
||||
.ADDRESS_WIDTH(SYNC_FIFO_ADDRESS_WIDTH),
|
||||
.S_AXIS_REGISTERED(0)
|
||||
) i_offload_sync_fifo (
|
||||
.s_axis_aclk(spi_clk),
|
||||
.s_axis_aresetn(spi_resetn),
|
||||
.s_axis_ready(offload_sync_ready),
|
||||
.s_axis_valid(offload_sync_valid),
|
||||
.s_axis_data(offload_sync_data),
|
||||
.s_axis_room(),
|
||||
.s_axis_empty(),
|
||||
.m_axis_aclk(clk),
|
||||
.m_axis_aresetn(up_sw_resetn),
|
||||
.m_axis_ready(1'b1),
|
||||
.m_axis_valid(offload_sync_fifo_valid),
|
||||
.m_axis_data(offload_sync_fifo_data),
|
||||
.m_axis_level()
|
||||
);
|
||||
|
||||
end else begin /* ASYNC_SPI_CLK == 0 */
|
||||
|
||||
assign sync_fifo_valid = sync_valid;
|
||||
assign sync_fifo_data = sync_data;
|
||||
assign sync_ready = 1'b1;
|
||||
|
||||
assign offload0_cmd_wr_en = up_wreq_s == 1'b1 && up_waddr_s == 8'h44;
|
||||
assign offload0_cmd_wr_data = up_wdata_s[15:0];
|
||||
|
||||
assign offload0_sdo_wr_en = up_wreq_s == 1'b1 && up_waddr_s == 8'h45;
|
||||
assign offload0_sdo_wr_data = up_wdata_s[DATA_WIDTH-1:0];
|
||||
|
||||
assign offload_sync_fifo_valid = offload_sync_valid;
|
||||
assign offload_sync_fifo_data = offload_sync_data;
|
||||
assign offload_sync_ready = 1'b1;
|
||||
|
||||
end
|
||||
endgenerate
|
||||
|
||||
sync_bits #(
|
||||
.NUM_OF_BITS (1),
|
||||
.ASYNC_CLK (ASYNC_SPI_CLK)
|
||||
) i_offload_enable_sync (
|
||||
.in_bits (offload0_enable_reg),
|
||||
.out_resetn (spi_resetn),
|
||||
.out_clk (spi_clk),
|
||||
.out_bits (offload0_enable));
|
||||
|
||||
sync_bits #(
|
||||
.NUM_OF_BITS (1),
|
||||
.ASYNC_CLK (ASYNC_SPI_CLK)
|
||||
) i_offload_enabled_sync (
|
||||
.in_bits (offload0_enabled),
|
||||
.out_resetn (up_sw_resetn),
|
||||
.out_clk (clk),
|
||||
.out_bits (offload0_enabled_s));
|
||||
|
||||
sync_bits #(
|
||||
.NUM_OF_BITS (1),
|
||||
.ASYNC_CLK (ASYNC_SPI_CLK)
|
||||
) i_offload_mem_reset_sync (
|
||||
.in_bits (offload0_mem_reset_reg),
|
||||
.out_resetn (spi_resetn),
|
||||
.out_clk (spi_clk),
|
||||
.out_bits (offload0_mem_reset));
|
||||
|
||||
endmodule
|
||||
+7759
File diff suppressed because it is too large
Load Diff
+18807
File diff suppressed because it is too large
Load Diff
+31945
File diff suppressed because it is too large
Load Diff
+10519
File diff suppressed because it is too large
Load Diff
+3659
File diff suppressed because it is too large
Load Diff
+18036
File diff suppressed because it is too large
Load Diff
+1956
File diff suppressed because it is too large
Load Diff
+4309
File diff suppressed because it is too large
Load Diff
+3014
File diff suppressed because it is too large
Load Diff
+260
@@ -0,0 +1,260 @@
|
||||
-------------------------------------------------------------------------------
|
||||
-- lmb_v10.vhd - Entity and architecture
|
||||
-------------------------------------------------------------------------------
|
||||
--
|
||||
-- (c) Copyright [2003] - [2011] Xilinx, Inc. All rights reserved.
|
||||
--
|
||||
-- This file contains confidential and proprietary information
|
||||
-- of Xilinx, Inc. and is protected under U.S. and
|
||||
-- international copyright and other intellectual property
|
||||
-- laws.
|
||||
--
|
||||
-- DISCLAIMER
|
||||
-- This disclaimer is not a license and does not grant any
|
||||
-- rights to the materials distributed herewith. Except as
|
||||
-- otherwise provided in a valid license issued to you by
|
||||
-- Xilinx, and to the maximum extent permitted by applicable
|
||||
-- law: (1) THESE MATERIALS ARE MADE AVAILABLE "AS IS" AND
|
||||
-- WITH ALL FAULTS, AND XILINX HEREBY DISCLAIMS ALL WARRANTIES
|
||||
-- AND CONDITIONS, EXPRESS, IMPLIED, OR STATUTORY, INCLUDING
|
||||
-- BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, NON-
|
||||
-- INFRINGEMENT, OR FITNESS FOR ANY PARTICULAR PURPOSE; and
|
||||
-- (2) Xilinx shall not be liable (whether in contract or tort,
|
||||
-- including negligence, or under any other theory of
|
||||
-- liability) for any loss or damage of any kind or nature
|
||||
-- related to, arising under or in connection with these
|
||||
-- materials, including for any direct, or any indirect,
|
||||
-- special, incidental, or consequential loss or damage
|
||||
-- (including loss of data, profits, goodwill, or any type of
|
||||
-- loss or damage suffered as a result of any action brought
|
||||
-- by a third party) even if such damage or loss was
|
||||
-- reasonably foreseeable or Xilinx had been advised of the
|
||||
-- possibility of the same.
|
||||
--
|
||||
-- CRITICAL APPLICATIONS
|
||||
-- Xilinx products are not designed or intended to be fail-
|
||||
-- safe, or for use in any application requiring fail-safe
|
||||
-- performance, such as life-support or safety devices or
|
||||
-- systems, Class III medical devices, nuclear facilities,
|
||||
-- applications related to the deployment of airbags, or any
|
||||
-- other applications that could lead to death, personal
|
||||
-- injury, or severe property or environmental damage
|
||||
-- (individually and collectively, "Critical
|
||||
-- Applications"). Customer assumes the sole risk and
|
||||
-- liability of any use of Xilinx products in Critical
|
||||
-- Applications, subject only to applicable laws and
|
||||
-- regulations governing limitations on product liability.
|
||||
--
|
||||
-- THIS COPYRIGHT NOTICE AND DISCLAIMER MUST BE RETAINED AS
|
||||
-- PART OF THIS FILE AT ALL TIMES
|
||||
--
|
||||
-------------------------------------------------------------------------------
|
||||
-- Filename: lmb_v10.vhd
|
||||
--
|
||||
-- Description:
|
||||
--
|
||||
-- VHDL-Standard: VHDL'93
|
||||
-------------------------------------------------------------------------------
|
||||
-- Structure:
|
||||
-- lmb_v10.vhd
|
||||
--
|
||||
-------------------------------------------------------------------------------
|
||||
-- Author: rolandp
|
||||
--
|
||||
-- History:
|
||||
-- goran 2002-01-30 First Version
|
||||
-- paulo 2002-04-10 Renamed C_NUM_SLAVES to C_LMB_NUM_SLAVES
|
||||
-- roland 2010-02-13 UE, CE and Wait signals added
|
||||
--
|
||||
-------------------------------------------------------------------------------
|
||||
-- Naming Conventions:
|
||||
-- active low signals: "*_n"
|
||||
-- clock signals: "clk", "clk_div#", "clk_#x"
|
||||
-- reset signals: "rst", "rst_n"
|
||||
-- generics: "C_*"
|
||||
-- user defined types: "*_TYPE"
|
||||
-- state machine next state: "*_ns"
|
||||
-- state machine current state: "*_cs"
|
||||
-- combinatorial signals: "*_com"
|
||||
-- pipelined or register delay signals: "*_d#"
|
||||
-- counter signals: "*cnt*"
|
||||
-- clock enable signals: "*_ce"
|
||||
-- internal version of output port "*_i"
|
||||
-- device pins: "*_pin"
|
||||
-- ports: - Names begin with Uppercase
|
||||
-- processes: "*_PROCESS"
|
||||
-- component instantiations: "<ENTITY_>I_<#|FUNC>
|
||||
-------------------------------------------------------------------------------
|
||||
|
||||
library IEEE;
|
||||
use IEEE.std_logic_1164.all;
|
||||
|
||||
entity lmb_v10 is
|
||||
|
||||
generic (
|
||||
C_LMB_NUM_SLAVES : integer := 4;
|
||||
C_LMB_DWIDTH : integer := 32;
|
||||
C_LMB_AWIDTH : integer := 32;
|
||||
C_EXT_RESET_HIGH : integer := 1
|
||||
);
|
||||
|
||||
port (
|
||||
-- Global Ports
|
||||
LMB_Clk : in std_logic;
|
||||
SYS_Rst : in std_logic;
|
||||
LMB_Rst : out std_logic;
|
||||
|
||||
-- LMB master signals
|
||||
M_ABus : in std_logic_vector(0 to C_LMB_AWIDTH-1);
|
||||
M_ReadStrobe : in std_logic;
|
||||
M_WriteStrobe : in std_logic;
|
||||
M_AddrStrobe : in std_logic;
|
||||
M_DBus : in std_logic_vector(0 to C_LMB_DWIDTH-1);
|
||||
M_BE : in std_logic_vector(0 to (C_LMB_DWIDTH+7)/8-1);
|
||||
|
||||
-- LMB slave signals
|
||||
Sl_DBus : in std_logic_vector(0 to (C_LMB_DWIDTH*C_LMB_NUM_SLAVES)-1);
|
||||
Sl_Ready : in std_logic_vector(0 to C_LMB_NUM_SLAVES-1);
|
||||
Sl_Wait : in std_logic_vector(0 to C_LMB_NUM_SLAVES-1);
|
||||
Sl_UE : in std_logic_vector(0 to C_LMB_NUM_SLAVES-1);
|
||||
Sl_CE : in std_logic_vector(0 to C_LMB_NUM_SLAVES-1);
|
||||
|
||||
-- LMB output signals
|
||||
LMB_ABus : out std_logic_vector(0 to C_LMB_AWIDTH-1);
|
||||
LMB_ReadStrobe : out std_logic;
|
||||
LMB_WriteStrobe : out std_logic;
|
||||
LMB_AddrStrobe : out std_logic;
|
||||
LMB_ReadDBus : out std_logic_vector(0 to C_LMB_DWIDTH-1);
|
||||
LMB_WriteDBus : out std_logic_vector(0 to C_LMB_DWIDTH-1);
|
||||
LMB_Ready : out std_logic;
|
||||
LMB_Wait : out std_logic;
|
||||
LMB_UE : out std_logic;
|
||||
LMB_CE : out std_logic;
|
||||
LMB_BE : out std_logic_vector(0 to (C_LMB_DWIDTH+7)/8-1)
|
||||
);
|
||||
end entity lmb_v10;
|
||||
|
||||
library unisim;
|
||||
use unisim.all;
|
||||
|
||||
architecture IMP of lmb_v10 is
|
||||
|
||||
component FDS is
|
||||
port(
|
||||
Q : out std_logic;
|
||||
D : in std_logic;
|
||||
C : in std_logic;
|
||||
S : in std_logic);
|
||||
end component FDS;
|
||||
|
||||
signal sys_rst_i : std_logic;
|
||||
|
||||
begin -- architecture IMP
|
||||
|
||||
-----------------------------------------------------------------------------
|
||||
-- Driving the reset signal
|
||||
-----------------------------------------------------------------------------
|
||||
|
||||
SYS_RST_PROC : process (SYS_Rst) is
|
||||
variable sys_rst_input : std_logic;
|
||||
begin
|
||||
if C_EXT_RESET_HIGH = 0 then
|
||||
sys_rst_input := not SYS_Rst;
|
||||
else
|
||||
sys_rst_input := SYS_Rst;
|
||||
end if;
|
||||
sys_rst_i <= sys_rst_input;
|
||||
end process SYS_RST_PROC;
|
||||
|
||||
POR_FF_I : FDS
|
||||
port map (
|
||||
Q => LMB_Rst,
|
||||
D => '0',
|
||||
C => LMB_Clk,
|
||||
S => sys_rst_i);
|
||||
|
||||
-----------------------------------------------------------------------------
|
||||
-- Drive all Master to Slave signals
|
||||
-----------------------------------------------------------------------------
|
||||
LMB_ABus <= M_ABus;
|
||||
LMB_ReadStrobe <= M_ReadStrobe;
|
||||
LMB_WriteStrobe <= M_WriteStrobe;
|
||||
LMB_AddrStrobe <= M_AddrStrobe;
|
||||
LMB_BE <= M_BE;
|
||||
LMB_WriteDBus <= M_DBus;
|
||||
|
||||
-----------------------------------------------------------------------------
|
||||
-- Drive all the Slave to Master signals
|
||||
-----------------------------------------------------------------------------
|
||||
Ready_ORing : process (Sl_Ready) is
|
||||
variable i : std_logic;
|
||||
begin -- process Ready_ORing
|
||||
i := '0';
|
||||
for S in Sl_Ready'range loop
|
||||
i := i or Sl_Ready(S);
|
||||
end loop; -- S
|
||||
LMB_Ready <= i;
|
||||
end process Ready_ORing;
|
||||
|
||||
Wait_ORing : process (Sl_Wait) is
|
||||
variable i : std_logic;
|
||||
begin -- process Wait_ORing
|
||||
i := '0';
|
||||
for S in Sl_Wait'range loop
|
||||
i := i or Sl_Wait(S);
|
||||
end loop; -- S
|
||||
LMB_Wait <= i;
|
||||
end process Wait_ORing;
|
||||
|
||||
SI_UE_ORing : process (Sl_UE) is
|
||||
variable i : std_logic;
|
||||
begin -- process UE_ORing
|
||||
i := '0';
|
||||
for S in Sl_UE'range loop
|
||||
i := i or Sl_UE(S);
|
||||
end loop; -- S
|
||||
LMB_UE <= i;
|
||||
end process SI_UE_ORing;
|
||||
|
||||
SI_CE_ORing : process (Sl_CE) is
|
||||
variable i : std_logic;
|
||||
begin -- process CE_ORing
|
||||
i := '0';
|
||||
for S in Sl_CE'range loop
|
||||
i := i or Sl_CE(S);
|
||||
end loop; -- S
|
||||
LMB_CE <= i;
|
||||
end process SI_CE_ORing;
|
||||
|
||||
DBus_Oring : process (Sl_Ready, Sl_DBus) is
|
||||
variable Res : std_logic_vector(0 to C_LMB_DWIDTH-1);
|
||||
variable Tmp : std_logic_vector(Sl_DBus'range);
|
||||
variable tmp_or : std_logic;
|
||||
begin -- process DBus_Oring
|
||||
if (C_LMB_NUM_SLAVES = 1) then
|
||||
LMB_ReadDBus <= Sl_DBus;
|
||||
else
|
||||
-- First gating all data signals with their resp. ready signal
|
||||
for I in 0 to C_LMB_NUM_SLAVES-1 loop
|
||||
for J in 0 to C_LMB_DWIDTH-1 loop
|
||||
tmp(I*C_LMB_DWIDTH + J) := Sl_Ready(I) and Sl_DBus(I*C_LMB_DWIDTH + J);
|
||||
end loop; -- J
|
||||
end loop; -- I
|
||||
-- then oring the tmp signals together
|
||||
for J in 0 to C_LMB_DWIDTH-1 loop
|
||||
tmp_or := '0';
|
||||
for I in 0 to C_LMB_NUM_SLAVES-1 loop
|
||||
tmp_or := tmp_or or tmp(I*C_LMB_DWIDTH + j);
|
||||
end loop; -- J
|
||||
res(J) := tmp_or;
|
||||
end loop; -- I
|
||||
LMB_ReadDBus <= Res;
|
||||
end if;
|
||||
end process DBus_Oring;
|
||||
|
||||
end architecture IMP;
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
+456
@@ -0,0 +1,456 @@
|
||||
// ***************************************************************************
|
||||
// ***************************************************************************
|
||||
// Copyright 2014 - 2017 (c) Analog Devices, Inc. All rights reserved.
|
||||
//
|
||||
// In this HDL repository, there are many different and unique modules, consisting
|
||||
// of various HDL (Verilog or VHDL) components. The individual modules are
|
||||
// developed independently, and may be accompanied by separate and unique license
|
||||
// terms.
|
||||
//
|
||||
// The user should read each of these license terms, and understand the
|
||||
// freedoms and responsibilities that he or she has by using this source/core.
|
||||
//
|
||||
// This core is distributed in the hope that it will be useful, but WITHOUT ANY
|
||||
// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
|
||||
// A PARTICULAR PURPOSE.
|
||||
//
|
||||
// Redistribution and use of source or resulting binaries, with or without modification
|
||||
// of this file, are permitted under one of the following two license terms:
|
||||
//
|
||||
// 1. The GNU General Public License version 2 as published by the
|
||||
// Free Software Foundation, which can be found in the top level directory
|
||||
// of this repository (LICENSE_GPL2), and also online at:
|
||||
// <https://www.gnu.org/licenses/old-licenses/gpl-2.0.html>
|
||||
//
|
||||
// OR
|
||||
//
|
||||
// 2. An ADI specific BSD license, which can be found in the top level directory
|
||||
// of this repository (LICENSE_ADIBSD), and also on-line at:
|
||||
// https://github.com/analogdevicesinc/hdl/blob/master/LICENSE_ADIBSD
|
||||
// This will allow to generate bit files and not release the source code,
|
||||
// as long as it attaches to an ADI device.
|
||||
//
|
||||
// ***************************************************************************
|
||||
// ***************************************************************************
|
||||
|
||||
`timescale 1ns/100ps
|
||||
|
||||
module spi_engine_execution #(
|
||||
|
||||
parameter NUM_OF_CS = 1,
|
||||
parameter DEFAULT_SPI_CFG = 0,
|
||||
parameter DEFAULT_CLK_DIV = 0,
|
||||
parameter DATA_WIDTH = 8, // Valid data widths values are 8/16/24/32
|
||||
parameter NUM_OF_SDI = 1,
|
||||
parameter [0:0] SDO_DEFAULT = 1'b0,
|
||||
parameter [1:0] SDI_DELAY = 2'b00) (
|
||||
|
||||
input clk,
|
||||
input resetn,
|
||||
|
||||
output reg active,
|
||||
|
||||
output cmd_ready,
|
||||
input cmd_valid,
|
||||
input [15:0] cmd,
|
||||
|
||||
input sdo_data_valid,
|
||||
output reg sdo_data_ready,
|
||||
input [(DATA_WIDTH-1):0] sdo_data,
|
||||
|
||||
|
||||
input sdi_data_ready,
|
||||
output reg sdi_data_valid,
|
||||
output [(NUM_OF_SDI * DATA_WIDTH)-1:0] sdi_data,
|
||||
|
||||
input sync_ready,
|
||||
output reg sync_valid,
|
||||
output [7:0] sync,
|
||||
|
||||
output reg sclk,
|
||||
output reg sdo,
|
||||
output reg sdo_t,
|
||||
input [NUM_OF_SDI-1:0] sdi,
|
||||
output reg [NUM_OF_CS-1:0] cs,
|
||||
output reg three_wire
|
||||
);
|
||||
|
||||
localparam CMD_TRANSFER = 2'b00;
|
||||
localparam CMD_CHIPSELECT = 2'b01;
|
||||
localparam CMD_WRITE = 2'b10;
|
||||
localparam CMD_MISC = 2'b11;
|
||||
|
||||
localparam MISC_SYNC = 1'b0;
|
||||
localparam MISC_SLEEP = 1'b1;
|
||||
|
||||
localparam REG_CLK_DIV = 2'b00;
|
||||
localparam REG_CONFIG = 2'b01;
|
||||
localparam REG_WORD_LENGTH = 2'b10;
|
||||
|
||||
localparam BIT_COUNTER_WIDTH = DATA_WIDTH > 16 ? 5 :
|
||||
DATA_WIDTH > 8 ? 4 : 3;
|
||||
|
||||
localparam BIT_COUNTER_CARRY = 2** (BIT_COUNTER_WIDTH + 1);
|
||||
localparam BIT_COUNTER_CLEAR = {{8{1'b1}}, {BIT_COUNTER_WIDTH{1'b0}}, 1'b1};
|
||||
|
||||
reg sclk_int = 1'b0;
|
||||
wire sdo_int_s;
|
||||
reg sdo_t_int = 1'b0;
|
||||
|
||||
reg idle;
|
||||
|
||||
reg [7:0] clk_div_counter = 'h00;
|
||||
reg [7:0] clk_div_counter_next = 'h00;
|
||||
reg clk_div_last;
|
||||
|
||||
reg [(BIT_COUNTER_WIDTH+8):0] counter = 'h00;
|
||||
|
||||
wire [7:0] sleep_counter = counter[(BIT_COUNTER_WIDTH+8):(BIT_COUNTER_WIDTH+1)];
|
||||
wire [1:0] cs_sleep_counter = counter[(BIT_COUNTER_WIDTH+2):(BIT_COUNTER_WIDTH+1)];
|
||||
wire [2:0] cs_sleep_counter2 = counter[(BIT_COUNTER_WIDTH+3):(BIT_COUNTER_WIDTH+1)];
|
||||
wire [(BIT_COUNTER_WIDTH-1):0] bit_counter = counter[BIT_COUNTER_WIDTH:1];
|
||||
wire [7:0] transfer_counter = counter[(BIT_COUNTER_WIDTH+8):(BIT_COUNTER_WIDTH+1)];
|
||||
wire ntx_rx = counter[0];
|
||||
|
||||
reg trigger = 1'b0;
|
||||
reg trigger_next = 1'b0;
|
||||
reg wait_for_io = 1'b0;
|
||||
reg transfer_active = 1'b0;
|
||||
|
||||
wire last_bit;
|
||||
wire first_bit;
|
||||
reg last_transfer;
|
||||
reg [7:0] word_length = DATA_WIDTH;
|
||||
reg [7:0] left_aligned = 8'b0;
|
||||
wire end_of_word;
|
||||
|
||||
reg [7:0] sdi_counter = 8'b0;
|
||||
|
||||
assign first_bit = ((bit_counter == 'h0) || (bit_counter == word_length));
|
||||
assign last_bit = bit_counter == word_length - 1;
|
||||
assign end_of_word = last_bit == 1'b1 && ntx_rx == 1'b1 && clk_div_last == 1'b1;
|
||||
|
||||
reg [15:0] cmd_d1;
|
||||
|
||||
reg cpha = DEFAULT_SPI_CFG[0];
|
||||
reg cpol = DEFAULT_SPI_CFG[1];
|
||||
reg [7:0] clk_div = DEFAULT_CLK_DIV;
|
||||
|
||||
reg sdo_enabled = 1'b0;
|
||||
reg sdi_enabled = 1'b0;
|
||||
|
||||
reg [(DATA_WIDTH-1):0] data_sdo_shift = 'h0;
|
||||
|
||||
reg [SDI_DELAY+1:0] trigger_rx_d = {(SDI_DELAY+2){1'b0}};
|
||||
|
||||
wire [1:0] inst = cmd[13:12];
|
||||
wire [1:0] inst_d1 = cmd_d1[13:12];
|
||||
|
||||
wire exec_cmd = cmd_ready && cmd_valid;
|
||||
wire exec_transfer_cmd = exec_cmd && inst == CMD_TRANSFER;
|
||||
|
||||
wire exec_write_cmd = exec_cmd && inst == CMD_WRITE;
|
||||
wire exec_chipselect_cmd = exec_cmd && inst == CMD_CHIPSELECT;
|
||||
wire exec_misc_cmd = exec_cmd && inst == CMD_MISC;
|
||||
wire exec_sync_cmd = exec_misc_cmd && cmd[8] == MISC_SYNC;
|
||||
|
||||
wire trigger_tx;
|
||||
wire trigger_rx;
|
||||
|
||||
wire sleep_counter_compare;
|
||||
wire cs_sleep_counter_compare;
|
||||
wire cs_sleep_counter_compare2;
|
||||
|
||||
wire io_ready1;
|
||||
wire io_ready2;
|
||||
wire trigger_rx_s;
|
||||
|
||||
wire last_sdi_bit;
|
||||
|
||||
assign cmd_ready = idle;
|
||||
|
||||
always @(posedge clk) begin
|
||||
if (exec_transfer_cmd) begin
|
||||
sdo_enabled <= cmd[8];
|
||||
sdi_enabled <= cmd[9];
|
||||
end
|
||||
end
|
||||
|
||||
always @(posedge clk) begin
|
||||
if (cmd_ready & cmd_valid)
|
||||
cmd_d1 <= cmd;
|
||||
end
|
||||
|
||||
always @(posedge clk) begin
|
||||
if (resetn == 1'b0) begin
|
||||
active <= 1'b0;
|
||||
end else begin
|
||||
if (exec_cmd == 1'b1)
|
||||
active <= 1'b1;
|
||||
else if (sync_ready == 1'b1 && sync_valid == 1'b1)
|
||||
active <= 1'b0;
|
||||
end
|
||||
end
|
||||
|
||||
// Load the interface configurations from the 'Configuration Write'
|
||||
// instruction
|
||||
always @(posedge clk) begin
|
||||
if (resetn == 1'b0) begin
|
||||
cpha <= DEFAULT_SPI_CFG[0];
|
||||
cpol <= DEFAULT_SPI_CFG[1];
|
||||
three_wire <= DEFAULT_SPI_CFG[2];
|
||||
clk_div <= DEFAULT_CLK_DIV;
|
||||
word_length <= DATA_WIDTH;
|
||||
left_aligned <= 8'b0;
|
||||
end else if (exec_write_cmd == 1'b1) begin
|
||||
if (cmd[9:8] == REG_CONFIG) begin
|
||||
cpha <= cmd[0];
|
||||
cpol <= cmd[1];
|
||||
three_wire <= cmd[2];
|
||||
end else if (cmd[9:8] == REG_CLK_DIV) begin
|
||||
clk_div <= cmd[7:0];
|
||||
end else if (cmd[9:8] == REG_WORD_LENGTH) begin
|
||||
// the max value of this reg must be DATA_WIDTH
|
||||
word_length <= cmd[7:0];
|
||||
left_aligned <= DATA_WIDTH - cmd[7:0];
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
always @(posedge clk) begin
|
||||
if ((clk_div_last == 1'b0 && idle == 1'b0 && wait_for_io == 1'b0 &&
|
||||
clk_div_counter == 'h01) || clk_div == 'h00)
|
||||
clk_div_last <= 1'b1;
|
||||
else
|
||||
clk_div_last <= 1'b0;
|
||||
end
|
||||
|
||||
always @(posedge clk) begin
|
||||
if (clk_div_last == 1'b1 || idle == 1'b1 || wait_for_io == 1'b1) begin
|
||||
clk_div_counter <= clk_div;
|
||||
trigger <= 1'b1;
|
||||
end else begin
|
||||
clk_div_counter <= clk_div_counter - 1'b1;
|
||||
trigger <= 1'b0;
|
||||
end
|
||||
end
|
||||
|
||||
assign trigger_tx = trigger == 1'b1 && ntx_rx == 1'b0;
|
||||
assign trigger_rx = trigger == 1'b1 && ntx_rx == 1'b1;
|
||||
|
||||
assign sleep_counter_compare = sleep_counter == cmd_d1[7:0] && clk_div_last == 1'b1;
|
||||
assign cs_sleep_counter_compare = cs_sleep_counter == cmd_d1[9:8] && clk_div_last == 1'b1;
|
||||
assign cs_sleep_counter_compare2 = cs_sleep_counter2 == {cmd_d1[9:8],1'b1} && clk_div_last == 1'b1;
|
||||
|
||||
always @(posedge clk) begin
|
||||
if (idle == 1'b1) begin
|
||||
counter <= 'h00;
|
||||
end else if (clk_div_last == 1'b1 && wait_for_io == 1'b0) begin
|
||||
if (bit_counter == word_length) begin
|
||||
counter <= (counter & BIT_COUNTER_CLEAR) + (transfer_active ? 'h1 : 'h10) + BIT_COUNTER_CARRY;
|
||||
end else begin
|
||||
counter <= counter + (transfer_active ? 'h1 : 'h10);
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
always @(posedge clk) begin
|
||||
if (resetn == 1'b0) begin
|
||||
idle <= 1'b1;
|
||||
end else begin
|
||||
if (exec_transfer_cmd || exec_chipselect_cmd || exec_misc_cmd) begin
|
||||
idle <= 1'b0;
|
||||
end else begin
|
||||
case (inst_d1)
|
||||
CMD_TRANSFER: begin
|
||||
if (transfer_active == 1'b0 && wait_for_io == 1'b0)
|
||||
idle <= 1'b1;
|
||||
end
|
||||
CMD_CHIPSELECT: begin
|
||||
if (cs_sleep_counter_compare2)
|
||||
idle <= 1'b1;
|
||||
end
|
||||
CMD_MISC: begin
|
||||
case (cmd_d1[8])
|
||||
MISC_SLEEP: begin
|
||||
if (sleep_counter_compare)
|
||||
idle <= 1'b1;
|
||||
end
|
||||
MISC_SYNC: begin
|
||||
if (sync_ready)
|
||||
idle <= 1'b1;
|
||||
end
|
||||
endcase
|
||||
end
|
||||
endcase
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
always @(posedge clk) begin
|
||||
if (resetn == 1'b0) begin
|
||||
cs <= 'hff;
|
||||
end else if (inst_d1 == CMD_CHIPSELECT && cs_sleep_counter_compare == 1'b1) begin
|
||||
cs <= cmd_d1[NUM_OF_CS-1:0];
|
||||
end
|
||||
end
|
||||
|
||||
always @(posedge clk) begin
|
||||
if (resetn == 1'b0) begin
|
||||
sync_valid <= 1'b0;
|
||||
end else begin
|
||||
if (exec_sync_cmd == 1'b1) begin
|
||||
sync_valid <= 1'b1;
|
||||
end else if (sync_ready == 1'b1) begin
|
||||
sync_valid <= 1'b0;
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
assign sync = cmd_d1[7:0];
|
||||
|
||||
always @(posedge clk) begin
|
||||
if (resetn == 1'b0)
|
||||
sdo_data_ready <= 1'b0;
|
||||
else if (sdo_enabled == 1'b1 && first_bit == 1'b1 && trigger_tx == 1'b1 && transfer_active == 1'b1)
|
||||
sdo_data_ready <= 1'b1;
|
||||
else if (sdo_data_valid == 1'b1)
|
||||
sdo_data_ready <= 1'b0;
|
||||
end
|
||||
|
||||
always @(posedge clk) begin
|
||||
if (resetn == 1'b0)
|
||||
sdi_data_valid <= 1'b0;
|
||||
else if (sdi_enabled == 1'b1 && last_sdi_bit == 1'b1 && trigger_rx_s == 1'b1)
|
||||
sdi_data_valid <= 1'b1;
|
||||
else if (sdi_data_ready == 1'b1)
|
||||
sdi_data_valid <= 1'b0;
|
||||
end
|
||||
|
||||
assign io_ready1 = (sdi_data_valid == 1'b0 || sdi_data_ready == 1'b1) &&
|
||||
(sdo_enabled == 1'b0 || last_transfer == 1'b1 || sdo_data_valid == 1'b1);
|
||||
assign io_ready2 = (sdi_enabled == 1'b0 || sdi_data_ready == 1'b1) &&
|
||||
(sdo_enabled == 1'b0 || last_transfer == 1'b1 || sdo_data_valid == 1'b1);
|
||||
|
||||
always @(posedge clk) begin
|
||||
if (idle == 1'b1) begin
|
||||
last_transfer <= 1'b0;
|
||||
end else if (trigger_tx == 1'b1 && transfer_active == 1'b1) begin
|
||||
if (transfer_counter == cmd_d1[7:0])
|
||||
last_transfer <= 1'b1;
|
||||
else
|
||||
last_transfer <= 1'b0;
|
||||
end
|
||||
end
|
||||
|
||||
always @(posedge clk) begin
|
||||
if (resetn == 1'b0) begin
|
||||
transfer_active <= 1'b0;
|
||||
wait_for_io <= 1'b0;
|
||||
end else begin
|
||||
if (exec_transfer_cmd == 1'b1) begin
|
||||
wait_for_io <= 1'b1;
|
||||
transfer_active <= 1'b0;
|
||||
end else if (wait_for_io == 1'b1 && io_ready1 == 1'b1) begin
|
||||
wait_for_io <= 1'b0;
|
||||
if (last_transfer == 1'b0)
|
||||
transfer_active <= 1'b1;
|
||||
else
|
||||
transfer_active <= 1'b0;
|
||||
end else if (transfer_active == 1'b1 && end_of_word == 1'b1) begin
|
||||
if (last_transfer == 1'b1 || io_ready2 == 1'b0)
|
||||
transfer_active <= 1'b0;
|
||||
if (io_ready2 == 1'b0)
|
||||
wait_for_io <= 1'b1;
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
always @(posedge clk) begin
|
||||
if (transfer_active == 1'b1 || wait_for_io == 1'b1)
|
||||
begin
|
||||
sdo_t_int <= ~sdo_enabled;
|
||||
end else begin
|
||||
sdo_t_int <= 1'b1;
|
||||
end
|
||||
end
|
||||
|
||||
// Load the SDO parallel data into the SDO shift register. In case of a custom
|
||||
// data width, additional bit shifting must done at load.
|
||||
always @(posedge clk) begin
|
||||
if ((inst_d1 == CMD_TRANSFER) && (!sdo_enabled)) begin
|
||||
data_sdo_shift <= {DATA_WIDTH{SDO_DEFAULT}};
|
||||
end else if (transfer_active == 1'b1 && trigger_tx == 1'b1) begin
|
||||
if (first_bit == 1'b1)
|
||||
data_sdo_shift <= sdo_data << left_aligned;
|
||||
else
|
||||
data_sdo_shift <= {data_sdo_shift[(DATA_WIDTH-2):0], 1'b0};
|
||||
end
|
||||
end
|
||||
|
||||
assign sdo_int_s = data_sdo_shift[DATA_WIDTH-1];
|
||||
|
||||
// In case of an interface with high clock rate (SCLK > 50MHz), the latch of
|
||||
// the SDI line can be delayed with 1, 2 or 3 SPI core clock cycle.
|
||||
// Taking the fact that in high SCLK frequencies the pre-scaler most likely will
|
||||
// be set to 0, to reduce the core clock's speed, this delay will mean that SDI will
|
||||
// be latched at one of the next consecutive SCLK edge.
|
||||
|
||||
always @(posedge clk) begin
|
||||
trigger_rx_d <= {trigger_rx_d, trigger_rx};
|
||||
end
|
||||
|
||||
assign trigger_rx_s = trigger_rx_d[SDI_DELAY+1];
|
||||
|
||||
// Load the serial data into SDI shift register(s), then link it to the output
|
||||
// register of the module
|
||||
|
||||
wire cs_active_s = (inst_d1 == CMD_CHIPSELECT) & ~(&cmd_d1[NUM_OF_CS-1:0]);
|
||||
genvar i;
|
||||
generate
|
||||
for (i=0; i<NUM_OF_SDI; i=i+1) begin: g_sdi_shift_reg
|
||||
|
||||
reg [DATA_WIDTH-1:0] data_sdi_shift;
|
||||
|
||||
always @(posedge clk) begin
|
||||
if (cs_active_s) begin
|
||||
data_sdi_shift <= 0;
|
||||
end else begin
|
||||
if (trigger_rx_s == 1'b1) begin
|
||||
data_sdi_shift <= {data_sdi_shift, sdi[i]};
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
assign sdi_data[i*DATA_WIDTH+:DATA_WIDTH] = data_sdi_shift;
|
||||
|
||||
end
|
||||
endgenerate
|
||||
|
||||
assign last_sdi_bit = (sdi_counter == word_length-1);
|
||||
always @(posedge clk) begin
|
||||
if (resetn == 1'b0) begin
|
||||
sdi_counter <= 8'b0;
|
||||
end else begin
|
||||
if (trigger_rx_s == 1'b1) begin
|
||||
sdi_counter <= last_sdi_bit ? 8'b0 : sdi_counter + 1'b1;
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
always @(posedge clk) begin
|
||||
if (transfer_active == 1'b1) begin
|
||||
sclk_int <= cpol ^ cpha ^ ntx_rx;
|
||||
end else begin
|
||||
sclk_int <= cpol;
|
||||
end
|
||||
end
|
||||
|
||||
// Additional register stage to improve timing
|
||||
always @(posedge clk) begin
|
||||
sclk <= sclk_int;
|
||||
sdo <= sdo_int_s;
|
||||
sdo_t <= sdo_t_int;
|
||||
end
|
||||
|
||||
endmodule
|
||||
+1646
File diff suppressed because it is too large
Load Diff
+1910
File diff suppressed because it is too large
Load Diff
+1430
File diff suppressed because it is too large
Load Diff
+5804
File diff suppressed because it is too large
Load Diff
+2930
File diff suppressed because it is too large
Load Diff
+193178
File diff suppressed because it is too large
Load Diff
+4522
File diff suppressed because it is too large
Load Diff
+671
@@ -0,0 +1,671 @@
|
||||
///////////////////////////////////////////////////////////////////////////////
|
||||
//
|
||||
// Company: Xilinx
|
||||
// Engineer: Jim Tatsukawa, Karl Kurbjun and Carl Ribbing
|
||||
// Date: 7/30/2014
|
||||
// Design Name: MMCME2 DRP
|
||||
// Module Name: mmcme2_drp_func.h
|
||||
// Version: 1.04
|
||||
// Target Devices: 7 Series || MMCM
|
||||
// Tool versions: 2014.3
|
||||
// Description: This header provides the functions necessary to
|
||||
// calculate the DRP register values for the V6 MMCM.
|
||||
//
|
||||
// Revision Notes: 3/12 - Updating lookup_low/lookup_high (CR)
|
||||
// 4/13 - Fractional divide function in mmcm_frac_count_calc function. CRS610807
|
||||
//
|
||||
// Disclaimer: XILINX IS PROVIDING THIS DESIGN, CODE, OR
|
||||
// INFORMATION "AS IS" SOLELY FOR USE IN DEVELOPING
|
||||
// PROGRAMS AND SOLUTIONS FOR XILINX DEVICES. BY
|
||||
// PROVIDING THIS DESIGN, CODE, OR INFORMATION AS
|
||||
// ONE POSSIBLE IMPLEMENTATION OF THIS FEATURE,
|
||||
// APPLICATION OR STANDARD, XILINX IS MAKING NO
|
||||
// REPRESENTATION THAT THIS IMPLEMENTATION IS FREE
|
||||
// FROM ANY CLAIMS OF INFRINGEMENT, AND YOU ARE
|
||||
// RESPONSIBLE FOR OBTAINING ANY RIGHTS YOU MAY
|
||||
// REQUIRE FOR YOUR IMPLEMENTATION. XILINX
|
||||
// EXPRESSLY DISCLAIMS ANY WARRANTY WHATSOEVER WITH
|
||||
// RESPECT TO THE ADEQUACY OF THE IMPLEMENTATION,
|
||||
// INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OR
|
||||
// REPRESENTATIONS THAT THIS IMPLEMENTATION IS FREE
|
||||
// FROM CLAIMS OF INFRINGEMENT, IMPLIED WARRANTIES
|
||||
// OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
||||
// PURPOSE.
|
||||
//
|
||||
// (c) Copyright 2009-2010 Xilinx, Inc.
|
||||
// All rights reserved.
|
||||
//
|
||||
///////////////////////////////////////////////////////////////////////////////
|
||||
|
||||
// These are user functions that should not be modified. Changes to the defines
|
||||
// or code within the functions may alter the accuracy of the calculations.
|
||||
|
||||
// Define debug to provide extra messages durring elaboration
|
||||
//`define DEBUG 1
|
||||
|
||||
// FRAC_PRECISION describes the width of the fractional portion of the fixed
|
||||
// point numbers. These should not be modified, they are for development
|
||||
// only
|
||||
`define FRAC_PRECISION 10
|
||||
// FIXED_WIDTH describes the total size for fixed point calculations(int+frac).
|
||||
// Warning: L.50 and below will not calculate properly with FIXED_WIDTHs
|
||||
// greater than 32
|
||||
`define FIXED_WIDTH 32
|
||||
|
||||
// This function takes a fixed point number and rounds it to the nearest
|
||||
// fractional precision bit.
|
||||
function [`FIXED_WIDTH:1] round_frac
|
||||
(
|
||||
// Input is (FIXED_WIDTH-FRAC_PRECISION).FRAC_PRECISION fixed point number
|
||||
input [`FIXED_WIDTH:1] decimal,
|
||||
|
||||
// This describes the precision of the fraction, for example a value
|
||||
// of 1 would modify the fractional so that instead of being a .16
|
||||
// fractional, it would be a .1 (rounded to the nearest 0.5 in turn)
|
||||
input [`FIXED_WIDTH:1] precision
|
||||
);
|
||||
|
||||
begin
|
||||
|
||||
`ifdef DEBUG
|
||||
$display("round_frac - decimal: %h, precision: %h", decimal, precision);
|
||||
`endif
|
||||
// If the fractional precision bit is high then round up
|
||||
if( decimal[(`FRAC_PRECISION-precision)] == 1'b1) begin
|
||||
round_frac = decimal + (1'b1 << (`FRAC_PRECISION-precision));
|
||||
end else begin
|
||||
round_frac = decimal;
|
||||
end
|
||||
`ifdef DEBUG
|
||||
$display("round_frac: %h", round_frac);
|
||||
`endif
|
||||
end
|
||||
endfunction
|
||||
|
||||
// This function calculates high_time, low_time, w_edge, and no_count
|
||||
// of a non-fractional counter based on the divide and duty cycle
|
||||
//
|
||||
// NOTE: high_time and low_time are returned as integers between 0 and 63
|
||||
// inclusive. 64 should equal 6'b000000 (in other words it is okay to
|
||||
// ignore the overflow)
|
||||
function [13:0] mmcm_pll_divider
|
||||
(
|
||||
input [7:0] divide, // Max divide is 128
|
||||
input [31:0] duty_cycle // Duty cycle is multiplied by 100,000
|
||||
);
|
||||
|
||||
reg [`FIXED_WIDTH:1] duty_cycle_fix;
|
||||
|
||||
// High/Low time is initially calculated with a wider integer to prevent a
|
||||
// calculation error when it overflows to 64.
|
||||
reg [6:0] high_time;
|
||||
reg [6:0] low_time;
|
||||
reg w_edge;
|
||||
reg no_count;
|
||||
|
||||
reg [`FIXED_WIDTH:1] temp;
|
||||
|
||||
begin
|
||||
// Duty Cycle must be between 0 and 1,000
|
||||
if(duty_cycle <=0 || duty_cycle >= 100000) begin
|
||||
`ifndef SYNTHESIS
|
||||
$display("ERROR: duty_cycle: %d is invalid", duty_cycle);
|
||||
`endif
|
||||
$finish;
|
||||
end
|
||||
|
||||
// Convert to FIXED_WIDTH-FRAC_PRECISION.FRAC_PRECISION fixed point
|
||||
duty_cycle_fix = (duty_cycle << `FRAC_PRECISION) / 100_000;
|
||||
|
||||
`ifdef DEBUG
|
||||
$display("duty_cycle_fix: %h", duty_cycle_fix);
|
||||
`endif
|
||||
|
||||
// If the divide is 1 nothing needs to be set except the no_count bit.
|
||||
// Other values are dummies
|
||||
if(divide == 7'h01) begin
|
||||
high_time = 7'h01;
|
||||
w_edge = 1'b0;
|
||||
low_time = 7'h01;
|
||||
no_count = 1'b1;
|
||||
end else begin
|
||||
temp = round_frac(duty_cycle_fix*divide, 1);
|
||||
|
||||
// comes from above round_frac
|
||||
high_time = temp[`FRAC_PRECISION+7:`FRAC_PRECISION+1];
|
||||
// If the duty cycle * divide rounded is .5 or greater then this bit
|
||||
// is set.
|
||||
w_edge = temp[`FRAC_PRECISION]; // comes from round_frac
|
||||
|
||||
// If the high time comes out to 0, it needs to be set to at least 1
|
||||
// and w_edge set to 0
|
||||
if(high_time == 7'h00) begin
|
||||
high_time = 7'h01;
|
||||
w_edge = 1'b0;
|
||||
end
|
||||
|
||||
if(high_time == divide) begin
|
||||
high_time = divide - 1;
|
||||
w_edge = 1'b1;
|
||||
end
|
||||
|
||||
// Calculate low_time based on the divide setting and set no_count to
|
||||
// 0 as it is only used when divide is 1.
|
||||
low_time = divide - high_time;
|
||||
no_count = 1'b0;
|
||||
end
|
||||
|
||||
// Set the return value.
|
||||
mmcm_pll_divider = {w_edge,no_count,high_time[5:0],low_time[5:0]};
|
||||
end
|
||||
endfunction
|
||||
|
||||
// This function calculates mx, delay_time, and phase_mux
|
||||
// of a non-fractional counter based on the divide and phase
|
||||
//
|
||||
// NOTE: The only valid value for the MX bits is 2'b00 to ensure the coarse mux
|
||||
// is used.
|
||||
function [10:0] mmcm_pll_phase
|
||||
(
|
||||
// divide must be an integer (use fractional if not)
|
||||
// assumed that divide already checked to be valid
|
||||
input [7:0] divide, // Max divide is 128
|
||||
|
||||
// Phase is given in degrees (-360,000 to 360,000)
|
||||
input signed [31:0] phase
|
||||
);
|
||||
|
||||
reg [`FIXED_WIDTH:1] phase_in_cycles;
|
||||
reg [`FIXED_WIDTH:1] phase_fixed;
|
||||
reg [1:0] mx;
|
||||
reg [5:0] delay_time;
|
||||
reg [2:0] phase_mux;
|
||||
|
||||
reg [`FIXED_WIDTH:1] temp;
|
||||
|
||||
begin
|
||||
`ifdef DEBUG
|
||||
$display("mmcm_pll_phase-divide:%d,phase:%d",
|
||||
divide, phase);
|
||||
`endif
|
||||
|
||||
if ((phase < -360000) || (phase > 360000)) begin
|
||||
`ifndef SYNTHESIS
|
||||
$display("ERROR: phase of $phase is not between -360000 and 360000");
|
||||
`endif
|
||||
$finish;
|
||||
end
|
||||
|
||||
// If phase is less than 0, convert it to a positive phase shift
|
||||
// Convert to (FIXED_WIDTH-FRAC_PRECISION).FRAC_PRECISION fixed point
|
||||
if(phase < 0) begin
|
||||
phase_fixed = ( (phase + 360000) << `FRAC_PRECISION ) / 1000;
|
||||
end else begin
|
||||
phase_fixed = ( phase << `FRAC_PRECISION ) / 1000;
|
||||
end
|
||||
|
||||
// Put phase in terms of decimal number of vco clock cycles
|
||||
phase_in_cycles = ( phase_fixed * divide ) / 360;
|
||||
|
||||
`ifdef DEBUG
|
||||
$display("phase_in_cycles: %h", phase_in_cycles);
|
||||
`endif
|
||||
|
||||
|
||||
temp = round_frac(phase_in_cycles, 3);
|
||||
|
||||
// set mx to 2'b00 that the phase mux from the VCO is enabled
|
||||
mx = 2'b00;
|
||||
phase_mux = temp[`FRAC_PRECISION:`FRAC_PRECISION-2];
|
||||
delay_time = temp[`FRAC_PRECISION+6:`FRAC_PRECISION+1];
|
||||
|
||||
`ifdef DEBUG
|
||||
$display("temp: %h", temp);
|
||||
`endif
|
||||
|
||||
// Setup the return value
|
||||
mmcm_pll_phase={mx, phase_mux, delay_time};
|
||||
end
|
||||
endfunction
|
||||
|
||||
// This function takes the divide value and outputs the necessary lock values
|
||||
function [39:0] mmcm_pll_lock_lookup
|
||||
(
|
||||
input [6:0] divide // Max divide is 64
|
||||
);
|
||||
|
||||
reg [2559:0] lookup;
|
||||
|
||||
begin
|
||||
lookup = {
|
||||
// This table is composed of:
|
||||
// LockRefDly_LockFBDly_LockCnt_LockSatHigh_UnlockCnt
|
||||
40'b00110_00110_1111101000_1111101001_0000000001,
|
||||
40'b00110_00110_1111101000_1111101001_0000000001,
|
||||
40'b01000_01000_1111101000_1111101001_0000000001,
|
||||
40'b01011_01011_1111101000_1111101001_0000000001,
|
||||
40'b01110_01110_1111101000_1111101001_0000000001,
|
||||
40'b10001_10001_1111101000_1111101001_0000000001,
|
||||
40'b10011_10011_1111101000_1111101001_0000000001,
|
||||
40'b10110_10110_1111101000_1111101001_0000000001,
|
||||
40'b11001_11001_1111101000_1111101001_0000000001,
|
||||
40'b11100_11100_1111101000_1111101001_0000000001,
|
||||
40'b11111_11111_1110000100_1111101001_0000000001,
|
||||
40'b11111_11111_1100111001_1111101001_0000000001,
|
||||
40'b11111_11111_1011101110_1111101001_0000000001,
|
||||
40'b11111_11111_1010111100_1111101001_0000000001,
|
||||
40'b11111_11111_1010001010_1111101001_0000000001,
|
||||
40'b11111_11111_1001110001_1111101001_0000000001,
|
||||
40'b11111_11111_1000111111_1111101001_0000000001,
|
||||
40'b11111_11111_1000100110_1111101001_0000000001,
|
||||
40'b11111_11111_1000001101_1111101001_0000000001,
|
||||
40'b11111_11111_0111110100_1111101001_0000000001,
|
||||
40'b11111_11111_0111011011_1111101001_0000000001,
|
||||
40'b11111_11111_0111000010_1111101001_0000000001,
|
||||
40'b11111_11111_0110101001_1111101001_0000000001,
|
||||
40'b11111_11111_0110010000_1111101001_0000000001,
|
||||
40'b11111_11111_0110010000_1111101001_0000000001,
|
||||
40'b11111_11111_0101110111_1111101001_0000000001,
|
||||
40'b11111_11111_0101011110_1111101001_0000000001,
|
||||
40'b11111_11111_0101011110_1111101001_0000000001,
|
||||
40'b11111_11111_0101000101_1111101001_0000000001,
|
||||
40'b11111_11111_0101000101_1111101001_0000000001,
|
||||
40'b11111_11111_0100101100_1111101001_0000000001,
|
||||
40'b11111_11111_0100101100_1111101001_0000000001,
|
||||
40'b11111_11111_0100101100_1111101001_0000000001,
|
||||
40'b11111_11111_0100010011_1111101001_0000000001,
|
||||
40'b11111_11111_0100010011_1111101001_0000000001,
|
||||
40'b11111_11111_0100010011_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001
|
||||
};
|
||||
|
||||
// Set lookup_entry with the explicit bits from lookup with a part select
|
||||
mmcm_pll_lock_lookup = lookup[ ((64-divide)*40) +: 40];
|
||||
`ifdef DEBUG
|
||||
$display("lock_lookup: %b", mmcm_pll_lock_lookup);
|
||||
`endif
|
||||
end
|
||||
endfunction
|
||||
|
||||
// This function takes the divide value and the bandwidth setting of the MMCM
|
||||
// and outputs the digital filter settings necessary.
|
||||
function [9:0] mmcm_pll_filter_lookup
|
||||
(
|
||||
input [6:0] divide, // Max divide is 64
|
||||
input [8*9:0] BANDWIDTH
|
||||
);
|
||||
|
||||
reg [639:0] lookup_low;
|
||||
reg [639:0] lookup_high;
|
||||
|
||||
reg [9:0] lookup_entry;
|
||||
|
||||
begin
|
||||
lookup_low = {
|
||||
// CP_RES_LFHF
|
||||
10'b0010_1111_00,
|
||||
10'b0010_1111_00,
|
||||
10'b0010_1111_00,
|
||||
10'b0010_1111_00,
|
||||
10'b0010_0111_00,
|
||||
10'b0010_1011_00,
|
||||
10'b0010_1101_00,
|
||||
10'b0010_0011_00,
|
||||
10'b0010_0101_00,
|
||||
10'b0010_0101_00,
|
||||
10'b0010_1001_00,
|
||||
10'b0010_1110_00,
|
||||
10'b0010_1110_00,
|
||||
10'b0010_1110_00,
|
||||
10'b0010_1110_00,
|
||||
10'b0010_0001_00,
|
||||
10'b0010_0001_00,
|
||||
10'b0010_0001_00,
|
||||
10'b0010_0110_00,
|
||||
10'b0010_0110_00,
|
||||
10'b0010_0110_00,
|
||||
10'b0010_0110_00,
|
||||
10'b0010_0110_00,
|
||||
10'b0010_0110_00,
|
||||
10'b0010_0110_00,
|
||||
10'b0010_1010_00,
|
||||
10'b0010_1010_00,
|
||||
10'b0010_1010_00,
|
||||
10'b0010_1010_00,
|
||||
10'b0010_1010_00,
|
||||
10'b0010_1100_00,
|
||||
10'b0010_1100_00,
|
||||
10'b0010_1100_00,
|
||||
10'b0010_1100_00,
|
||||
10'b0010_1100_00,
|
||||
10'b0010_1100_00,
|
||||
10'b0010_1100_00,
|
||||
10'b0010_1100_00,
|
||||
10'b0010_1100_00,
|
||||
10'b0010_1100_00,
|
||||
10'b0010_1100_00,
|
||||
10'b0010_1100_00,
|
||||
10'b0010_1100_00,
|
||||
10'b0010_1100_00,
|
||||
10'b0010_1100_00,
|
||||
10'b0010_1100_00,
|
||||
10'b0010_1100_00,
|
||||
10'b0010_0010_00,
|
||||
10'b0010_0010_00,
|
||||
10'b0010_0010_00,
|
||||
10'b0010_0010_00,
|
||||
10'b0010_0010_00,
|
||||
10'b0010_0010_00,
|
||||
10'b0010_0010_00,
|
||||
10'b0010_0010_00,
|
||||
10'b0010_0010_00,
|
||||
10'b0010_0010_00,
|
||||
10'b0010_0010_00,
|
||||
10'b0010_0010_00,
|
||||
10'b0010_0010_00,
|
||||
10'b0010_0010_00,
|
||||
10'b0010_0010_00,
|
||||
10'b0010_0010_00,
|
||||
10'b0010_0010_00
|
||||
};
|
||||
|
||||
lookup_high = {
|
||||
// CP_RES_LFHF
|
||||
10'b0010_1111_00,
|
||||
10'b0100_1111_00,
|
||||
10'b0101_1011_00,
|
||||
10'b0111_0111_00,
|
||||
10'b1101_0111_00,
|
||||
10'b1110_1011_00,
|
||||
10'b1110_1101_00,
|
||||
10'b1111_0011_00,
|
||||
10'b1110_0101_00,
|
||||
10'b1111_0101_00,
|
||||
10'b1111_1001_00,
|
||||
10'b1101_0001_00,
|
||||
10'b1111_1001_00,
|
||||
10'b1111_1001_00,
|
||||
10'b1111_1001_00,
|
||||
10'b1111_1001_00,
|
||||
10'b1111_0101_00,
|
||||
10'b1111_0101_00,
|
||||
10'b1100_0001_00,
|
||||
10'b1100_0001_00,
|
||||
10'b1100_0001_00,
|
||||
10'b0101_1100_00,
|
||||
10'b0101_1100_00,
|
||||
10'b0101_1100_00,
|
||||
10'b0101_1100_00,
|
||||
10'b0011_0100_00,
|
||||
10'b0011_0100_00,
|
||||
10'b0011_0100_00,
|
||||
10'b0011_0100_00,
|
||||
10'b0011_0100_00,
|
||||
10'b0011_0100_00,
|
||||
10'b0011_0100_00,
|
||||
10'b0011_0100_00,
|
||||
10'b0011_0100_00,
|
||||
10'b0011_0100_00,
|
||||
10'b0011_0100_00,
|
||||
10'b0011_0100_00,
|
||||
10'b0011_0100_00,
|
||||
10'b0011_0100_00,
|
||||
10'b0011_0100_00,
|
||||
10'b0011_0100_00,
|
||||
10'b0010_1000_00,
|
||||
10'b0010_1000_00,
|
||||
10'b0010_1000_00,
|
||||
10'b0010_1000_00,
|
||||
10'b0010_1000_00,
|
||||
10'b0111_0001_00,
|
||||
10'b0111_0001_00,
|
||||
10'b0100_1100_00,
|
||||
10'b0100_1100_00,
|
||||
10'b0100_1100_00,
|
||||
10'b0100_1100_00,
|
||||
10'b0110_0001_00,
|
||||
10'b0110_0001_00,
|
||||
10'b0101_0110_00,
|
||||
10'b0101_0110_00,
|
||||
10'b0101_0110_00,
|
||||
10'b0010_0100_00,
|
||||
10'b0010_0100_00,
|
||||
10'b0010_0100_00,
|
||||
10'b0010_0100_00,
|
||||
10'b0100_1010_00,
|
||||
10'b0011_1100_00,
|
||||
10'b0011_1100_00
|
||||
};
|
||||
|
||||
// Set lookup_entry with the explicit bits from lookup with a part select
|
||||
if(BANDWIDTH == "LOW") begin
|
||||
// Low Bandwidth
|
||||
mmcm_pll_filter_lookup = lookup_low[ ((64-divide)*10) +: 10];
|
||||
end else begin
|
||||
// High or optimized bandwidth
|
||||
mmcm_pll_filter_lookup = lookup_high[ ((64-divide)*10) +: 10];
|
||||
end
|
||||
|
||||
`ifdef DEBUG
|
||||
$display("filter_lookup: %b", mmcm_pll_filter_lookup);
|
||||
`endif
|
||||
end
|
||||
endfunction
|
||||
|
||||
// This function takes in the divide, phase, and duty cycle
|
||||
// setting to calculate the upper and lower counter registers.
|
||||
function [37:0] mmcm_pll_count_calc
|
||||
(
|
||||
input [7:0] divide, // Max divide is 128
|
||||
input signed [31:0] phase,
|
||||
input [31:0] duty_cycle // Multiplied by 100,000
|
||||
);
|
||||
|
||||
reg [13:0] div_calc;
|
||||
reg [16:0] phase_calc;
|
||||
|
||||
begin
|
||||
`ifdef DEBUG
|
||||
$display("mmcm_pll_count_calc- divide:%h, phase:%d, duty_cycle:%d",
|
||||
divide, phase, duty_cycle);
|
||||
`endif
|
||||
|
||||
// w_edge[13], no_count[12], high_time[11:6], low_time[5:0]
|
||||
div_calc = mmcm_pll_divider(divide, duty_cycle);
|
||||
// mx[10:9], pm[8:6], dt[5:0]
|
||||
phase_calc = mmcm_pll_phase(divide, phase);
|
||||
|
||||
// Return value is the upper and lower address of counter
|
||||
// Upper address is:
|
||||
// RESERVED [31:26]
|
||||
// MX [25:24]
|
||||
// EDGE [23]
|
||||
// NOCOUNT [22]
|
||||
// DELAY_TIME [21:16]
|
||||
// Lower Address is:
|
||||
// PHASE_MUX [15:13]
|
||||
// RESERVED [12]
|
||||
// HIGH_TIME [11:6]
|
||||
// LOW_TIME [5:0]
|
||||
|
||||
`ifdef DEBUG
|
||||
$display("div:%d dc:%d phase:%d ht:%d lt:%d ed:%d nc:%d mx:%d dt:%d pm:%d",
|
||||
divide, duty_cycle, phase, div_calc[11:6], div_calc[5:0],
|
||||
div_calc[13], div_calc[12],
|
||||
phase_calc[16:15], phase_calc[5:0], phase_calc[14:12]);
|
||||
`endif
|
||||
|
||||
mmcm_pll_count_calc =
|
||||
{
|
||||
// Upper Address
|
||||
6'h00, phase_calc[10:9], div_calc[13:12], phase_calc[5:0],
|
||||
// Lower Address
|
||||
phase_calc[8:6], 1'b0, div_calc[11:0]
|
||||
};
|
||||
end
|
||||
endfunction
|
||||
|
||||
|
||||
// This function takes in the divide, phase, and duty cycle
|
||||
// setting to calculate the upper and lower counter registers.
|
||||
// for fractional multiply/divide functions.
|
||||
//
|
||||
//
|
||||
function [37:0] mmcm_frac_count_calc
|
||||
(
|
||||
input [7:0] divide, // Max divide is 128
|
||||
input signed [31:0] phase,
|
||||
input [31:0] duty_cycle, // Multiplied by 1,000
|
||||
input [9:0] frac // Multiplied by 1000
|
||||
);
|
||||
|
||||
//Required for fractional divide calculations
|
||||
reg [7:0] lt_frac;
|
||||
reg [7:0] ht_frac;
|
||||
|
||||
reg /*[7:0]*/ wf_fall_frac;
|
||||
reg /*[7:0]*/ wf_rise_frac;
|
||||
|
||||
reg [31:0] a;
|
||||
reg [7:0] pm_rise_frac_filtered ;
|
||||
reg [7:0] pm_fall_frac_filtered ;
|
||||
reg [7:0] clkout0_divide_int;
|
||||
reg [2:0] clkout0_divide_frac;
|
||||
reg [7:0] even_part_high;
|
||||
reg [7:0] even_part_low;
|
||||
|
||||
reg [7:0] odd;
|
||||
reg [7:0] odd_and_frac;
|
||||
|
||||
reg [7:0] pm_fall;
|
||||
reg [7:0] pm_rise;
|
||||
reg [7:0] dt;
|
||||
reg [7:0] dt_int;
|
||||
reg [63:0] dt_calc;
|
||||
|
||||
reg [7:0] pm_rise_frac;
|
||||
reg [7:0] pm_fall_frac;
|
||||
|
||||
reg [31:0] a_per_in_octets;
|
||||
reg [31:0] a_phase_in_cycles;
|
||||
|
||||
parameter precision = 0.125;
|
||||
|
||||
reg [31:0] phase_fixed; // changed to 31:0 from 32:1 jt 5/2/11
|
||||
reg [31: 0] phase_pos;
|
||||
reg [31: 0] phase_vco;
|
||||
reg [31:0] temp;// changed to 31:0 from 32:1 jt 5/2/11
|
||||
reg [13:0] div_calc;
|
||||
reg [16:0] phase_calc;
|
||||
|
||||
begin
|
||||
`ifdef DEBUG
|
||||
$display("mmcm_frac_count_calc- divide:%h, phase:%d, duty_cycle:%d",
|
||||
divide, phase, duty_cycle);
|
||||
`endif
|
||||
|
||||
//convert phase to fixed
|
||||
if ((phase < -360000) || (phase > 360000)) begin
|
||||
`ifndef SYNTHESIS
|
||||
$display("ERROR: phase of $phase is not between -360000 and 360000");
|
||||
`endif
|
||||
$finish;
|
||||
end
|
||||
|
||||
|
||||
// Return value is
|
||||
// Transfer data
|
||||
// RESERVED [37:36]
|
||||
// FRAC_TIME [35:33]
|
||||
// FRAC_WF_FALL [32]
|
||||
// Upper address is:
|
||||
// RESERVED [31:26]
|
||||
// MX [25:24]
|
||||
// EDGE [23]
|
||||
// NOCOUNT [22]
|
||||
// DELAY_TIME [21:16]
|
||||
// Lower Address is:
|
||||
// PHASE_MUX [15:13]
|
||||
// RESERVED [12]
|
||||
// HIGH_TIME [11:6]
|
||||
// LOW_TIME [5:0]
|
||||
|
||||
|
||||
|
||||
clkout0_divide_frac = frac / 125;
|
||||
clkout0_divide_int = divide;
|
||||
|
||||
even_part_high = clkout0_divide_int >> 1;//$rtoi(clkout0_divide_int / 2);
|
||||
even_part_low = even_part_high;
|
||||
|
||||
odd = clkout0_divide_int - even_part_high - even_part_low;
|
||||
odd_and_frac = (8*odd) + clkout0_divide_frac;
|
||||
|
||||
lt_frac = even_part_high - (odd_and_frac <= 9);//IF(odd_and_frac>9,even_part_high, even_part_high - 1)
|
||||
ht_frac = even_part_low - (odd_and_frac <= 8);//IF(odd_and_frac>8,even_part_low, even_part_low- 1)
|
||||
|
||||
pm_fall = {odd[6:0],2'b00} + {6'h00, clkout0_divide_frac[2:1]}; // using >> instead of clkout0_divide_frac / 2
|
||||
pm_rise = 0; //0
|
||||
|
||||
wf_fall_frac = ((odd_and_frac >=2) && (odd_and_frac <=9)) || ((clkout0_divide_frac == 1) && (clkout0_divide_int == 2));//CRS610807
|
||||
wf_rise_frac = (odd_and_frac >=1) && (odd_and_frac <=8);//IF(odd_and_frac>=1,IF(odd_and_frac <= 8,1,0),0)
|
||||
|
||||
|
||||
|
||||
//Calculate phase in fractional cycles
|
||||
a_per_in_octets = (8 * divide) + (frac / 125) ;
|
||||
a_phase_in_cycles = (phase+10) * a_per_in_octets / 360000 ;//Adding 1 due to rounding errors
|
||||
pm_rise_frac = (a_phase_in_cycles[7:0] ==8'h00)?8'h00:a_phase_in_cycles[7:0] - {a_phase_in_cycles[7:3],3'b000};
|
||||
|
||||
dt_calc = ((phase+10) * a_per_in_octets / 8 )/360000 ;//TRUNC(phase* divide / 360); //or_simply (a_per_in_octets / 8)
|
||||
dt = dt_calc[7:0];
|
||||
|
||||
pm_rise_frac_filtered = (pm_rise_frac >=8) ? (pm_rise_frac ) - 8: pm_rise_frac ; //((phase_fixed * (divide + frac / 1000)) / 360) - {pm_rise_frac[7:3],3'b000};//$rtoi(clkout0_phase * clkout0_divide / 45);//a;
|
||||
|
||||
dt_int = dt + (& pm_rise_frac[7:4]); //IF(pm_rise_overwriting>7,dt+1,dt)
|
||||
pm_fall_frac = pm_fall + pm_rise_frac;
|
||||
pm_fall_frac_filtered = pm_fall + pm_rise_frac - {pm_fall_frac[7:3], 3'b000};
|
||||
|
||||
div_calc = mmcm_pll_divider(divide, duty_cycle); //Use to determine edge[7], no count[6]
|
||||
phase_calc = mmcm_pll_phase(divide, phase);// returns{mx[1:0], phase_mux[2:0], delay_time[5:0]}
|
||||
|
||||
mmcm_frac_count_calc[37:0] =
|
||||
{ 2'b00, pm_fall_frac_filtered[2:0], wf_fall_frac,
|
||||
1'b0, clkout0_divide_frac[2:0], 1'b1, wf_rise_frac, phase_calc[10:9], div_calc[13:12], dt[5:0],
|
||||
pm_rise_frac_filtered[2], pm_rise_frac_filtered[1], pm_rise_frac_filtered[0], 1'b0, ht_frac[5:0], lt_frac[5:0]
|
||||
} ;
|
||||
|
||||
`ifdef DEBUG
|
||||
$display("-%d.%d p%d>> :DADDR_9_15 frac30to28.frac_en.wf_r_frac.dt:%b%d%d_%b:DADDR_7_13 pm_f_frac_filtered_29to27.wf_f_frac_26:%b%d:DADDR_8_14.pm_r_frac_filt_15to13.ht_frac.lt_frac:%b%b%b:", divide, frac, phase, clkout0_divide_frac, 1, wf_rise_frac, dt, pm_fall_frac_filtered, wf_fall_frac, pm_rise_frac_filtered, ht_frac, lt_frac);
|
||||
`endif
|
||||
|
||||
end
|
||||
endfunction
|
||||
|
||||
+531
@@ -0,0 +1,531 @@
|
||||
///////////////////////////////////////////////////////////////////////////////
|
||||
//
|
||||
// Company: Xilinx
|
||||
// Engineer: Jim Tatsukawa, Karl Kurbjun and Carl Ribbing
|
||||
// Date: 7/30/2014
|
||||
// Design Name: PLLE2 DRP
|
||||
// Module Name: plle2_drp_func.h
|
||||
// Version: 2.00
|
||||
// Target Devices: 7 Series || PLL
|
||||
// Tool versions: 2014.3
|
||||
// Description: This header provides the functions necessary to
|
||||
// calculate the DRP register values for the V6 PLL.
|
||||
// Updated for CR663854.
|
||||
//
|
||||
// Disclaimer: XILINX IS PROVIDING THIS DESIGN, CODE, OR
|
||||
// INFORMATION "AS IS" SOLELY FOR USE IN DEVELOPING
|
||||
// PROGRAMS AND SOLUTIONS FOR XILINX DEVICES. BY
|
||||
// PROVIDING THIS DESIGN, CODE, OR INFORMATION AS
|
||||
// ONE POSSIBLE IMPLEMENTATION OF THIS FEATURE,
|
||||
// APPLICATION OR STANDARD, XILINX IS MAKING NO
|
||||
// REPRESENTATION THAT THIS IMPLEMENTATION IS FREE
|
||||
// FROM ANY CLAIMS OF INFRINGEMENT, AND YOU ARE
|
||||
// RESPONSIBLE FOR OBTAINING ANY RIGHTS YOU MAY
|
||||
// REQUIRE FOR YOUR IMPLEMENTATION. XILINX
|
||||
// EXPRESSLY DISCLAIMS ANY WARRANTY WHATSOEVER WITH
|
||||
// RESPECT TO THE ADEQUACY OF THE IMPLEMENTATION,
|
||||
// INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OR
|
||||
// REPRESENTATIONS THAT THIS IMPLEMENTATION IS FREE
|
||||
// FROM CLAIMS OF INFRINGEMENT, IMPLIED WARRANTIES
|
||||
// OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
||||
// PURPOSE.
|
||||
//
|
||||
// (c) Copyright 2009-2010 Xilinx, Inc.
|
||||
// All rights reserved.
|
||||
//
|
||||
///////////////////////////////////////////////////////////////////////////////
|
||||
|
||||
// These are user functions that should not be modified. Changes to the defines
|
||||
// or code within the functions may alter the accuracy of the calculations.
|
||||
|
||||
// Define debug to provide extra messages durring elaboration
|
||||
//`define DEBUG 1
|
||||
|
||||
// FRAC_PRECISION describes the width of the fractional portion of the fixed
|
||||
// point numbers. These should not be modified, they are for development
|
||||
// only
|
||||
`define FRAC_PRECISION 10
|
||||
// FIXED_WIDTH describes the total size for fixed point calculations(int+frac).
|
||||
// Warning: L.50 and below will not calculate properly with FIXED_WIDTHs
|
||||
// greater than 32
|
||||
`define FIXED_WIDTH 32
|
||||
|
||||
// This function takes a fixed point number and rounds it to the nearest
|
||||
// fractional precision bit.
|
||||
function [`FIXED_WIDTH:1] round_frac
|
||||
(
|
||||
// Input is (FIXED_WIDTH-FRAC_PRECISION).FRAC_PRECISION fixed point number
|
||||
input [`FIXED_WIDTH:1] decimal,
|
||||
|
||||
// This describes the precision of the fraction, for example a value
|
||||
// of 1 would modify the fractional so that instead of being a .16
|
||||
// fractional, it would be a .1 (rounded to the nearest 0.5 in turn)
|
||||
input [`FIXED_WIDTH:1] precision
|
||||
);
|
||||
|
||||
begin
|
||||
|
||||
`ifdef DEBUG
|
||||
$display("round_frac - decimal: %h, precision: %h", decimal, precision);
|
||||
`endif
|
||||
// If the fractional precision bit is high then round up
|
||||
if( decimal[(`FRAC_PRECISION-precision)] == 1'b1) begin
|
||||
round_frac = decimal + (1'b1 << (`FRAC_PRECISION-precision));
|
||||
end else begin
|
||||
round_frac = decimal;
|
||||
end
|
||||
`ifdef DEBUG
|
||||
$display("round_frac: %h", round_frac);
|
||||
`endif
|
||||
end
|
||||
endfunction
|
||||
|
||||
// This function calculates high_time, low_time, w_edge, and no_count
|
||||
// of a non-fractional counter based on the divide and duty cycle
|
||||
//
|
||||
// NOTE: high_time and low_time are returned as integers between 0 and 63
|
||||
// inclusive. 64 should equal 6'b000000 (in other words it is okay to
|
||||
// ignore the overflow)
|
||||
function [13:0] mmcm_pll_divider
|
||||
(
|
||||
input [7:0] divide, // Max divide is 128
|
||||
input [31:0] duty_cycle // Duty cycle is multiplied by 100,000
|
||||
);
|
||||
|
||||
reg [`FIXED_WIDTH:1] duty_cycle_fix;
|
||||
|
||||
// High/Low time is initially calculated with a wider integer to prevent a
|
||||
// calculation error when it overflows to 64.
|
||||
reg [6:0] high_time;
|
||||
reg [6:0] low_time;
|
||||
reg w_edge;
|
||||
reg no_count;
|
||||
|
||||
reg [`FIXED_WIDTH:1] temp;
|
||||
|
||||
begin
|
||||
// Duty Cycle must be between 0 and 1,000
|
||||
if(duty_cycle <=0 || duty_cycle >= 100000) begin
|
||||
`ifndef SYNTHESIS
|
||||
$display("ERROR: duty_cycle: %d is invalid", duty_cycle);
|
||||
`endif
|
||||
$finish;
|
||||
end
|
||||
|
||||
// Convert to FIXED_WIDTH-FRAC_PRECISION.FRAC_PRECISION fixed point
|
||||
duty_cycle_fix = (duty_cycle << `FRAC_PRECISION) / 100_000;
|
||||
|
||||
`ifdef DEBUG
|
||||
$display("duty_cycle_fix: %h", duty_cycle_fix);
|
||||
`endif
|
||||
|
||||
// If the divide is 1 nothing needs to be set except the no_count bit.
|
||||
// Other values are dummies
|
||||
if(divide == 7'h01) begin
|
||||
high_time = 7'h01;
|
||||
w_edge = 1'b0;
|
||||
low_time = 7'h01;
|
||||
no_count = 1'b1;
|
||||
end else begin
|
||||
temp = round_frac(duty_cycle_fix*divide, 1);
|
||||
|
||||
// comes from above round_frac
|
||||
high_time = temp[`FRAC_PRECISION+7:`FRAC_PRECISION+1];
|
||||
// If the duty cycle * divide rounded is .5 or greater then this bit
|
||||
// is set.
|
||||
w_edge = temp[`FRAC_PRECISION]; // comes from round_frac
|
||||
|
||||
// If the high time comes out to 0, it needs to be set to at least 1
|
||||
// and w_edge set to 0
|
||||
if(high_time == 7'h00) begin
|
||||
high_time = 7'h01;
|
||||
w_edge = 1'b0;
|
||||
end
|
||||
|
||||
if(high_time == divide) begin
|
||||
high_time = divide - 1;
|
||||
w_edge = 1'b1;
|
||||
end
|
||||
|
||||
// Calculate low_time based on the divide setting and set no_count to
|
||||
// 0 as it is only used when divide is 1.
|
||||
low_time = divide - high_time;
|
||||
no_count = 1'b0;
|
||||
end
|
||||
|
||||
// Set the return value.
|
||||
mmcm_pll_divider = {w_edge,no_count,high_time[5:0],low_time[5:0]};
|
||||
end
|
||||
endfunction
|
||||
|
||||
// This function calculates mx, delay_time, and phase_mux
|
||||
// of a non-fractional counter based on the divide and phase
|
||||
//
|
||||
// NOTE: The only valid value for the MX bits is 2'b00 to ensure the coarse mux
|
||||
// is used.
|
||||
function [10:0] mmcm_pll_phase
|
||||
(
|
||||
// divide must be an integer (use fractional if not)
|
||||
// assumed that divide already checked to be valid
|
||||
input [7:0] divide, // Max divide is 128
|
||||
|
||||
// Phase is given in degrees (-360,000 to 360,000)
|
||||
input signed [31:0] phase
|
||||
);
|
||||
|
||||
reg [`FIXED_WIDTH:1] phase_in_cycles;
|
||||
reg [`FIXED_WIDTH:1] phase_fixed;
|
||||
reg [1:0] mx;
|
||||
reg [5:0] delay_time;
|
||||
reg [2:0] phase_mux;
|
||||
|
||||
reg [`FIXED_WIDTH:1] temp;
|
||||
|
||||
begin
|
||||
`ifdef DEBUG
|
||||
$display("mmcm_pll_phase-divide:%d,phase:%d",
|
||||
divide, phase);
|
||||
`endif
|
||||
|
||||
if ((phase < -360000) || (phase > 360000)) begin
|
||||
`ifndef SYNTHESIS
|
||||
$display("ERROR: phase of $phase is not between -360000 and 360000");
|
||||
`endif
|
||||
$finish;
|
||||
end
|
||||
|
||||
// If phase is less than 0, convert it to a positive phase shift
|
||||
// Convert to (FIXED_WIDTH-FRAC_PRECISION).FRAC_PRECISION fixed point
|
||||
if(phase < 0) begin
|
||||
phase_fixed = ( (phase + 360000) << `FRAC_PRECISION ) / 1000;
|
||||
end else begin
|
||||
phase_fixed = ( phase << `FRAC_PRECISION ) / 1000;
|
||||
end
|
||||
|
||||
// Put phase in terms of decimal number of vco clock cycles
|
||||
phase_in_cycles = ( phase_fixed * divide ) / 360;
|
||||
|
||||
`ifdef DEBUG
|
||||
$display("phase_in_cycles: %h", phase_in_cycles);
|
||||
`endif
|
||||
|
||||
|
||||
temp = round_frac(phase_in_cycles, 3);
|
||||
|
||||
// set mx to 2'b00 that the phase mux from the VCO is enabled
|
||||
mx = 2'b00;
|
||||
phase_mux = temp[`FRAC_PRECISION:`FRAC_PRECISION-2];
|
||||
delay_time = temp[`FRAC_PRECISION+6:`FRAC_PRECISION+1];
|
||||
|
||||
`ifdef DEBUG
|
||||
$display("temp: %h", temp);
|
||||
`endif
|
||||
|
||||
// Setup the return value
|
||||
mmcm_pll_phase={mx, phase_mux, delay_time};
|
||||
end
|
||||
endfunction
|
||||
|
||||
// This function takes the divide value and outputs the necessary lock values
|
||||
function [39:0] mmcm_pll_lock_lookup
|
||||
(
|
||||
input [6:0] divide // Max divide is 64
|
||||
);
|
||||
|
||||
reg [2559:0] lookup;
|
||||
|
||||
begin
|
||||
lookup = {
|
||||
// This table is composed of:
|
||||
// LockRefDly_LockFBDly_LockCnt_LockSatHigh_UnlockCnt
|
||||
40'b00110_00110_1111101000_1111101001_0000000001,
|
||||
40'b00110_00110_1111101000_1111101001_0000000001,
|
||||
40'b01000_01000_1111101000_1111101001_0000000001,
|
||||
40'b01011_01011_1111101000_1111101001_0000000001,
|
||||
40'b01110_01110_1111101000_1111101001_0000000001,
|
||||
40'b10001_10001_1111101000_1111101001_0000000001,
|
||||
40'b10011_10011_1111101000_1111101001_0000000001,
|
||||
40'b10110_10110_1111101000_1111101001_0000000001,
|
||||
40'b11001_11001_1111101000_1111101001_0000000001,
|
||||
40'b11100_11100_1111101000_1111101001_0000000001,
|
||||
40'b11111_11111_1110000100_1111101001_0000000001,
|
||||
40'b11111_11111_1100111001_1111101001_0000000001,
|
||||
40'b11111_11111_1011101110_1111101001_0000000001,
|
||||
40'b11111_11111_1010111100_1111101001_0000000001,
|
||||
40'b11111_11111_1010001010_1111101001_0000000001,
|
||||
40'b11111_11111_1001110001_1111101001_0000000001,
|
||||
40'b11111_11111_1000111111_1111101001_0000000001,
|
||||
40'b11111_11111_1000100110_1111101001_0000000001,
|
||||
40'b11111_11111_1000001101_1111101001_0000000001,
|
||||
40'b11111_11111_0111110100_1111101001_0000000001,
|
||||
40'b11111_11111_0111011011_1111101001_0000000001,
|
||||
40'b11111_11111_0111000010_1111101001_0000000001,
|
||||
40'b11111_11111_0110101001_1111101001_0000000001,
|
||||
40'b11111_11111_0110010000_1111101001_0000000001,
|
||||
40'b11111_11111_0110010000_1111101001_0000000001,
|
||||
40'b11111_11111_0101110111_1111101001_0000000001,
|
||||
40'b11111_11111_0101011110_1111101001_0000000001,
|
||||
40'b11111_11111_0101011110_1111101001_0000000001,
|
||||
40'b11111_11111_0101000101_1111101001_0000000001,
|
||||
40'b11111_11111_0101000101_1111101001_0000000001,
|
||||
40'b11111_11111_0100101100_1111101001_0000000001,
|
||||
40'b11111_11111_0100101100_1111101001_0000000001,
|
||||
40'b11111_11111_0100101100_1111101001_0000000001,
|
||||
40'b11111_11111_0100010011_1111101001_0000000001,
|
||||
40'b11111_11111_0100010011_1111101001_0000000001,
|
||||
40'b11111_11111_0100010011_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001
|
||||
};
|
||||
|
||||
// Set lookup_entry with the explicit bits from lookup with a part select
|
||||
mmcm_pll_lock_lookup = lookup[ ((64-divide)*40) +: 40];
|
||||
`ifdef DEBUG
|
||||
$display("lock_lookup: %b", mmcm_pll_lock_lookup);
|
||||
`endif
|
||||
end
|
||||
endfunction
|
||||
|
||||
// This function takes the divide value and the bandwidth setting of the PLL
|
||||
// and outputs the digital filter settings necessary.
|
||||
function [9:0] mmcm_pll_filter_lookup
|
||||
(
|
||||
input [6:0] divide, // Max divide is 64
|
||||
input [8*9:0] BANDWIDTH
|
||||
);
|
||||
|
||||
reg [639:0] lookup_low;
|
||||
reg [639:0] lookup_high;
|
||||
|
||||
reg [9:0] lookup_entry;
|
||||
|
||||
begin
|
||||
lookup_low = {
|
||||
// CP_RES_LFHF
|
||||
10'b0010_1111_00,
|
||||
10'b0010_1111_00,
|
||||
10'b0010_0111_00,
|
||||
10'b0010_1101_00,
|
||||
10'b0010_0101_00,
|
||||
10'b0010_0101_00,
|
||||
10'b0010_1001_00,
|
||||
10'b0010_1110_00,
|
||||
10'b0010_1110_00,
|
||||
10'b0010_0001_00,
|
||||
10'b0010_0001_00,
|
||||
10'b0010_0110_00,
|
||||
10'b0010_0110_00,
|
||||
10'b0010_0110_00,
|
||||
10'b0010_0110_00,
|
||||
10'b0010_1010_00,
|
||||
10'b0010_1010_00,
|
||||
10'b0010_1010_00,
|
||||
10'b0010_1010_00,
|
||||
10'b0010_1100_00,
|
||||
10'b0010_1100_00,
|
||||
10'b0010_1100_00,
|
||||
10'b0010_1100_00,
|
||||
10'b0010_1100_00,
|
||||
10'b0010_1100_00,
|
||||
10'b0010_1100_00,
|
||||
10'b0010_1100_00,
|
||||
10'b0010_1100_00,
|
||||
10'b0010_1100_00,
|
||||
10'b0010_1100_00,
|
||||
10'b0010_0010_00,
|
||||
10'b0010_0010_00,
|
||||
10'b0010_0010_00,
|
||||
10'b0010_0010_00,
|
||||
10'b0010_0010_00,
|
||||
10'b0010_0010_00,
|
||||
10'b0010_0010_00,
|
||||
10'b0010_0010_00,
|
||||
10'b0010_0010_00,
|
||||
10'b0010_0010_00,
|
||||
10'b0011_1100_00,
|
||||
10'b0011_1100_00,
|
||||
10'b0011_1100_00,
|
||||
10'b0011_1100_00,
|
||||
10'b0011_1100_00,
|
||||
10'b0011_1100_00,
|
||||
10'b0011_1100_00,
|
||||
10'b0010_0100_00,
|
||||
10'b0010_0100_00,
|
||||
10'b0010_0100_00,
|
||||
10'b0010_0100_00,
|
||||
10'b0010_0100_00,
|
||||
10'b0010_0100_00,
|
||||
10'b0010_0100_00,
|
||||
10'b0010_0100_00,
|
||||
10'b0010_0100_00,
|
||||
10'b0010_0100_00,
|
||||
10'b0010_0100_00,
|
||||
10'b0010_0100_00,
|
||||
10'b0010_0100_00,
|
||||
10'b0010_0100_00,
|
||||
10'b0010_0100_00,
|
||||
10'b0010_0100_00,
|
||||
10'b0010_0100_00
|
||||
};
|
||||
|
||||
lookup_high = {
|
||||
// CP_RES_LFHF
|
||||
10'b0011_0111_00,
|
||||
10'b0011_0111_00,
|
||||
10'b0101_1111_00,
|
||||
10'b0111_1111_00,
|
||||
10'b0111_1011_00,
|
||||
10'b1101_0111_00,
|
||||
10'b1110_1011_00,
|
||||
10'b1110_1101_00,
|
||||
10'b1111_1101_00,
|
||||
10'b1111_0111_00,
|
||||
10'b1111_1011_00,
|
||||
10'b1111_1101_00,
|
||||
10'b1111_0011_00,
|
||||
10'b1110_0101_00,
|
||||
10'b1111_0101_00,
|
||||
10'b1111_0101_00,
|
||||
10'b1111_0101_00,
|
||||
10'b1111_0101_00,
|
||||
10'b0111_0110_00,
|
||||
10'b0111_0110_00,
|
||||
10'b0111_0110_00,
|
||||
10'b0111_0110_00,
|
||||
10'b0101_1100_00,
|
||||
10'b0101_1100_00,
|
||||
10'b0101_1100_00,
|
||||
10'b1100_0001_00,
|
||||
10'b1100_0001_00,
|
||||
10'b1100_0001_00,
|
||||
10'b1100_0001_00,
|
||||
10'b1100_0001_00,
|
||||
10'b1100_0001_00,
|
||||
10'b1100_0001_00,
|
||||
10'b1100_0001_00,
|
||||
10'b0100_0010_00,
|
||||
10'b0100_0010_00,
|
||||
10'b0100_0010_00,
|
||||
10'b0010_1000_00,
|
||||
10'b0010_1000_00,
|
||||
10'b0010_1000_00,
|
||||
10'b0011_0100_00,
|
||||
10'b0010_1000_00,
|
||||
10'b0010_1000_00,
|
||||
10'b0010_1000_00,
|
||||
10'b0010_1000_00,
|
||||
10'b0010_1000_00,
|
||||
10'b0010_1000_00,
|
||||
10'b0010_1000_00,
|
||||
10'b0010_1000_00,
|
||||
10'b0010_1000_00,
|
||||
10'b0010_1000_00,
|
||||
10'b0010_1000_00,
|
||||
10'b0010_1000_00,
|
||||
10'b0010_1000_00,
|
||||
10'b0100_1100_00,
|
||||
10'b0100_1100_00,
|
||||
10'b0100_1100_00,
|
||||
10'b0100_1100_00,
|
||||
10'b0100_1100_00,
|
||||
10'b0100_1100_00,
|
||||
10'b0100_1100_00,
|
||||
10'b0010_0100_00,
|
||||
10'b0010_0100_00,
|
||||
10'b0010_0100_00,
|
||||
10'b0010_0100_00
|
||||
};
|
||||
|
||||
// Set lookup_entry with the explicit bits from lookup with a part select
|
||||
if(BANDWIDTH == "LOW") begin
|
||||
// Low Bandwidth
|
||||
mmcm_pll_filter_lookup = lookup_low[ ((64-divide)*10) +: 10];
|
||||
end else begin
|
||||
// High or optimized bandwidth
|
||||
mmcm_pll_filter_lookup = lookup_high[ ((64-divide)*10) +: 10];
|
||||
end
|
||||
|
||||
`ifdef DEBUG
|
||||
$display("filter_lookup: %b", mmcm_pll_filter_lookup);
|
||||
`endif
|
||||
end
|
||||
endfunction
|
||||
|
||||
// This function takes in the divide, phase, and duty cycle
|
||||
// setting to calculate the upper and lower counter registers.
|
||||
function [37:0] mmcm_pll_count_calc
|
||||
(
|
||||
input [7:0] divide, // Max divide is 128
|
||||
input signed [31:0] phase,
|
||||
input [31:0] duty_cycle // Multiplied by 100,000
|
||||
);
|
||||
|
||||
reg [13:0] div_calc;
|
||||
reg [16:0] phase_calc;
|
||||
|
||||
begin
|
||||
`ifdef DEBUG
|
||||
$display("mmcm_pll_count_calc- divide:%h, phase:%d, duty_cycle:%d",
|
||||
divide, phase, duty_cycle);
|
||||
`endif
|
||||
|
||||
// w_edge[13], no_count[12], high_time[11:6], low_time[5:0]
|
||||
div_calc = mmcm_pll_divider(divide, duty_cycle);
|
||||
// mx[10:9], pm[8:6], dt[5:0]
|
||||
phase_calc = mmcm_pll_phase(divide, phase);
|
||||
|
||||
// Return value is the upper and lower address of counter
|
||||
// Upper address is:
|
||||
// RESERVED [31:26]
|
||||
// MX [25:24]
|
||||
// EDGE [23]
|
||||
// NOCOUNT [22]
|
||||
// DELAY_TIME [21:16]
|
||||
// Lower Address is:
|
||||
// PHASE_MUX [15:13]
|
||||
// RESERVED [12]
|
||||
// HIGH_TIME [11:6]
|
||||
// LOW_TIME [5:0]
|
||||
|
||||
`ifdef DEBUG
|
||||
$display("div:%d dc:%d phase:%d ht:%d lt:%d ed:%d nc:%d mx:%d dt:%d pm:%d",
|
||||
divide, duty_cycle, phase, div_calc[11:6], div_calc[5:0],
|
||||
div_calc[13], div_calc[12],
|
||||
phase_calc[16:15], phase_calc[5:0], phase_calc[14:12]);
|
||||
`endif
|
||||
|
||||
mmcm_pll_count_calc =
|
||||
{
|
||||
// Upper Address
|
||||
6'h00, phase_calc[10:9], div_calc[13:12], phase_calc[5:0],
|
||||
// Lower Address
|
||||
phase_calc[8:6], 1'b0, div_calc[11:0]
|
||||
};
|
||||
end
|
||||
endfunction
|
||||
+671
@@ -0,0 +1,671 @@
|
||||
///////////////////////////////////////////////////////////////////////////////
|
||||
//
|
||||
// Company: Xilinx
|
||||
// Engineer: Jim Tatsukawa
|
||||
// Date: 7/30/2014
|
||||
// Design Name: MMCME2 DRP
|
||||
// Module Name: mmcme2_drp_func.h
|
||||
// Version: 1.04
|
||||
// Target Devices: UltraScale Architecture || MMCM
|
||||
// Tool versions: 2014.3
|
||||
// Description: This header provides the functions necessary to
|
||||
// calculate the DRP register values for the V6 MMCM.
|
||||
//
|
||||
// Revision Notes: 3/22 - Updating lookup_low/lookup_high (CR)
|
||||
// 4/13 - Fractional divide function in mmcm_frac_count_calc function. CRS610807
|
||||
//
|
||||
// Disclaimer: XILINX IS PROVIDING THIS DESIGN, CODE, OR
|
||||
// INFORMATION "AS IS" SOLELY FOR USE IN DEVELOPING
|
||||
// PROGRAMS AND SOLUTIONS FOR XILINX DEVICES. BY
|
||||
// PROVIDING THIS DESIGN, CODE, OR INFORMATION AS
|
||||
// ONE POSSIBLE IMPLEMENTATION OF THIS FEATURE,
|
||||
// APPLICATION OR STANDARD, XILINX IS MAKING NO
|
||||
// REPRESENTATION THAT THIS IMPLEMENTATION IS FREE
|
||||
// FROM ANY CLAIMS OF INFRINGEMENT, AND YOU ARE
|
||||
// RESPONSIBLE FOR OBTAINING ANY RIGHTS YOU MAY
|
||||
// REQUIRE FOR YOUR IMPLEMENTATION. XILINX
|
||||
// EXPRESSLY DISCLAIMS ANY WARRANTY WHATSOEVER WITH
|
||||
// RESPECT TO THE ADEQUACY OF THE IMPLEMENTATION,
|
||||
// INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OR
|
||||
// REPRESENTATIONS THAT THIS IMPLEMENTATION IS FREE
|
||||
// FROM CLAIMS OF INFRINGEMENT, IMPLIED WARRANTIES
|
||||
// OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
||||
// PURPOSE.
|
||||
//
|
||||
// (c) Copyright 2009-2010 Xilinx, Inc.
|
||||
// All rights reserved.
|
||||
//
|
||||
///////////////////////////////////////////////////////////////////////////////
|
||||
|
||||
// These are user functions that should not be modified. Changes to the defines
|
||||
// or code within the functions may alter the accuracy of the calculations.
|
||||
|
||||
// Define debug to provide extra messages durring elaboration
|
||||
//`define DEBUG 1
|
||||
|
||||
// FRAC_PRECISION describes the width of the fractional portion of the fixed
|
||||
// point numbers. These should not be modified, they are for development
|
||||
// only
|
||||
`define FRAC_PRECISION 10
|
||||
// FIXED_WIDTH describes the total size for fixed point calculations(int+frac).
|
||||
// Warning: L.50 and below will not calculate properly with FIXED_WIDTHs
|
||||
// greater than 32
|
||||
`define FIXED_WIDTH 32
|
||||
|
||||
// This function takes a fixed point number and rounds it to the nearest
|
||||
// fractional precision bit.
|
||||
function [`FIXED_WIDTH:1] round_frac
|
||||
(
|
||||
// Input is (FIXED_WIDTH-FRAC_PRECISION).FRAC_PRECISION fixed point number
|
||||
input [`FIXED_WIDTH:1] decimal,
|
||||
|
||||
// This describes the precision of the fraction, for example a value
|
||||
// of 1 would modify the fractional so that instead of being a .16
|
||||
// fractional, it would be a .1 (rounded to the nearest 0.5 in turn)
|
||||
input [`FIXED_WIDTH:1] precision
|
||||
);
|
||||
|
||||
begin
|
||||
|
||||
`ifdef DEBUG
|
||||
$display("round_frac - decimal: %h, precision: %h", decimal, precision);
|
||||
`endif
|
||||
// If the fractional precision bit is high then round up
|
||||
if( decimal[(`FRAC_PRECISION-precision)] == 1'b1) begin
|
||||
round_frac = decimal + (1'b1 << (`FRAC_PRECISION-precision));
|
||||
end else begin
|
||||
round_frac = decimal;
|
||||
end
|
||||
`ifdef DEBUG
|
||||
$display("round_frac: %h", round_frac);
|
||||
`endif
|
||||
end
|
||||
endfunction
|
||||
|
||||
// This function calculates high_time, low_time, w_edge, and no_count
|
||||
// of a non-fractional counter based on the divide and duty cycle
|
||||
//
|
||||
// NOTE: high_time and low_time are returned as integers between 0 and 63
|
||||
// inclusive. 64 should equal 6'b000000 (in other words it is okay to
|
||||
// ignore the overflow)
|
||||
function [13:0] mmcm_pll_divider
|
||||
(
|
||||
input [7:0] divide, // Max divide is 128
|
||||
input [31:0] duty_cycle // Duty cycle is multiplied by 100,000
|
||||
);
|
||||
|
||||
reg [`FIXED_WIDTH:1] duty_cycle_fix;
|
||||
|
||||
// High/Low time is initially calculated with a wider integer to prevent a
|
||||
// calculation error when it overflows to 64.
|
||||
reg [6:0] high_time;
|
||||
reg [6:0] low_time;
|
||||
reg w_edge;
|
||||
reg no_count;
|
||||
|
||||
reg [`FIXED_WIDTH:1] temp;
|
||||
|
||||
begin
|
||||
// Duty Cycle must be between 0 and 1,000
|
||||
if(duty_cycle <=0 || duty_cycle >= 100000) begin
|
||||
`ifndef SYNTHESIS
|
||||
$display("ERROR: duty_cycle: %d is invalid", duty_cycle);
|
||||
`endif
|
||||
$finish;
|
||||
end
|
||||
|
||||
// Convert to FIXED_WIDTH-FRAC_PRECISION.FRAC_PRECISION fixed point
|
||||
duty_cycle_fix = (duty_cycle << `FRAC_PRECISION) / 100_000;
|
||||
|
||||
`ifdef DEBUG
|
||||
$display("duty_cycle_fix: %h", duty_cycle_fix);
|
||||
`endif
|
||||
|
||||
// If the divide is 1 nothing needs to be set except the no_count bit.
|
||||
// Other values are dummies
|
||||
if(divide == 7'h01) begin
|
||||
high_time = 7'h01;
|
||||
w_edge = 1'b0;
|
||||
low_time = 7'h01;
|
||||
no_count = 1'b1;
|
||||
end else begin
|
||||
temp = round_frac(duty_cycle_fix*divide, 1);
|
||||
|
||||
// comes from above round_frac
|
||||
high_time = temp[`FRAC_PRECISION+7:`FRAC_PRECISION+1];
|
||||
// If the duty cycle * divide rounded is .5 or greater then this bit
|
||||
// is set.
|
||||
w_edge = temp[`FRAC_PRECISION]; // comes from round_frac
|
||||
|
||||
// If the high time comes out to 0, it needs to be set to at least 1
|
||||
// and w_edge set to 0
|
||||
if(high_time == 7'h00) begin
|
||||
high_time = 7'h01;
|
||||
w_edge = 1'b0;
|
||||
end
|
||||
|
||||
if(high_time == divide) begin
|
||||
high_time = divide - 1;
|
||||
w_edge = 1'b1;
|
||||
end
|
||||
|
||||
// Calculate low_time based on the divide setting and set no_count to
|
||||
// 0 as it is only used when divide is 1.
|
||||
low_time = divide - high_time;
|
||||
no_count = 1'b0;
|
||||
end
|
||||
|
||||
// Set the return value.
|
||||
mmcm_pll_divider = {w_edge,no_count,high_time[5:0],low_time[5:0]};
|
||||
end
|
||||
endfunction
|
||||
|
||||
// This function calculates mx, delay_time, and phase_mux
|
||||
// of a non-fractional counter based on the divide and phase
|
||||
//
|
||||
// NOTE: The only valid value for the MX bits is 2'b00 to ensure the coarse mux
|
||||
// is used.
|
||||
function [10:0] mmcm_pll_phase
|
||||
(
|
||||
// divide must be an integer (use fractional if not)
|
||||
// assumed that divide already checked to be valid
|
||||
input [7:0] divide, // Max divide is 128
|
||||
|
||||
// Phase is given in degrees (-360,000 to 360,000)
|
||||
input signed [31:0] phase
|
||||
);
|
||||
|
||||
reg [`FIXED_WIDTH:1] phase_in_cycles;
|
||||
reg [`FIXED_WIDTH:1] phase_fixed;
|
||||
reg [1:0] mx;
|
||||
reg [5:0] delay_time;
|
||||
reg [2:0] phase_mux;
|
||||
|
||||
reg [`FIXED_WIDTH:1] temp;
|
||||
|
||||
begin
|
||||
`ifdef DEBUG
|
||||
$display("mmcm_pll_phase-divide:%d,phase:%d",
|
||||
divide, phase);
|
||||
`endif
|
||||
|
||||
if ((phase < -360000) || (phase > 360000)) begin
|
||||
`ifndef SYNTHESIS
|
||||
$display("ERROR: phase of $phase is not between -360000 and 360000");
|
||||
`endif
|
||||
$finish;
|
||||
end
|
||||
|
||||
// If phase is less than 0, convert it to a positive phase shift
|
||||
// Convert to (FIXED_WIDTH-FRAC_PRECISION).FRAC_PRECISION fixed point
|
||||
if(phase < 0) begin
|
||||
phase_fixed = ( (phase + 360000) << `FRAC_PRECISION ) / 1000;
|
||||
end else begin
|
||||
phase_fixed = ( phase << `FRAC_PRECISION ) / 1000;
|
||||
end
|
||||
|
||||
// Put phase in terms of decimal number of vco clock cycles
|
||||
phase_in_cycles = ( phase_fixed * divide ) / 360;
|
||||
|
||||
`ifdef DEBUG
|
||||
$display("phase_in_cycles: %h", phase_in_cycles);
|
||||
`endif
|
||||
|
||||
|
||||
temp = round_frac(phase_in_cycles, 3);
|
||||
|
||||
// set mx to 2'b00 that the phase mux from the VCO is enabled
|
||||
mx = 2'b00;
|
||||
phase_mux = temp[`FRAC_PRECISION:`FRAC_PRECISION-2];
|
||||
delay_time = temp[`FRAC_PRECISION+6:`FRAC_PRECISION+1];
|
||||
|
||||
`ifdef DEBUG
|
||||
$display("temp: %h", temp);
|
||||
`endif
|
||||
|
||||
// Setup the return value
|
||||
mmcm_pll_phase={mx, phase_mux, delay_time};
|
||||
end
|
||||
endfunction
|
||||
|
||||
// This function takes the divide value and outputs the necessary lock values
|
||||
function [39:0] mmcm_pll_lock_lookup
|
||||
(
|
||||
input [6:0] divide // Max divide is 64
|
||||
);
|
||||
|
||||
reg [2559:0] lookup;
|
||||
|
||||
begin
|
||||
lookup = {
|
||||
// This table is composed of:
|
||||
// LockRefDly_LockFBDly_LockCnt_LockSatHigh_UnlockCnt
|
||||
40'b00110_00110_1111101000_1111101001_0000000001,
|
||||
40'b00110_00110_1111101000_1111101001_0000000001,
|
||||
40'b01000_01000_1111101000_1111101001_0000000001,
|
||||
40'b01011_01011_1111101000_1111101001_0000000001,
|
||||
40'b01110_01110_1111101000_1111101001_0000000001,
|
||||
40'b10001_10001_1111101000_1111101001_0000000001,
|
||||
40'b10011_10011_1111101000_1111101001_0000000001,
|
||||
40'b10110_10110_1111101000_1111101001_0000000001,
|
||||
40'b11001_11001_1111101000_1111101001_0000000001,
|
||||
40'b11100_11100_1111101000_1111101001_0000000001,
|
||||
40'b11111_11111_1110000100_1111101001_0000000001,
|
||||
40'b11111_11111_1100111001_1111101001_0000000001,
|
||||
40'b11111_11111_1011101110_1111101001_0000000001,
|
||||
40'b11111_11111_1010111100_1111101001_0000000001,
|
||||
40'b11111_11111_1010001010_1111101001_0000000001,
|
||||
40'b11111_11111_1001110001_1111101001_0000000001,
|
||||
40'b11111_11111_1000111111_1111101001_0000000001,
|
||||
40'b11111_11111_1000100110_1111101001_0000000001,
|
||||
40'b11111_11111_1000001101_1111101001_0000000001,
|
||||
40'b11111_11111_0111110100_1111101001_0000000001,
|
||||
40'b11111_11111_0111011011_1111101001_0000000001,
|
||||
40'b11111_11111_0111000010_1111101001_0000000001,
|
||||
40'b11111_11111_0110101001_1111101001_0000000001,
|
||||
40'b11111_11111_0110010000_1111101001_0000000001,
|
||||
40'b11111_11111_0110010000_1111101001_0000000001,
|
||||
40'b11111_11111_0101110111_1111101001_0000000001,
|
||||
40'b11111_11111_0101011110_1111101001_0000000001,
|
||||
40'b11111_11111_0101011110_1111101001_0000000001,
|
||||
40'b11111_11111_0101000101_1111101001_0000000001,
|
||||
40'b11111_11111_0101000101_1111101001_0000000001,
|
||||
40'b11111_11111_0100101100_1111101001_0000000001,
|
||||
40'b11111_11111_0100101100_1111101001_0000000001,
|
||||
40'b11111_11111_0100101100_1111101001_0000000001,
|
||||
40'b11111_11111_0100010011_1111101001_0000000001,
|
||||
40'b11111_11111_0100010011_1111101001_0000000001,
|
||||
40'b11111_11111_0100010011_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001
|
||||
};
|
||||
|
||||
// Set lookup_entry with the explicit bits from lookup with a part select
|
||||
mmcm_pll_lock_lookup = lookup[ ((64-divide)*40) +: 40];
|
||||
`ifdef DEBUG
|
||||
$display("lock_lookup: %b", mmcm_pll_lock_lookup);
|
||||
`endif
|
||||
end
|
||||
endfunction
|
||||
|
||||
// This function takes the divide value and the bandwidth setting of the MMCM
|
||||
// and outputs the digital filter settings necessary.
|
||||
function [9:0] mmcm_pll_filter_lookup
|
||||
(
|
||||
input [6:0] divide, // Max divide is 64
|
||||
input [8*9:0] BANDWIDTH
|
||||
);
|
||||
|
||||
reg [639:0] lookup_low;
|
||||
reg [639:0] lookup_high;
|
||||
|
||||
reg [9:0] lookup_entry;
|
||||
|
||||
begin
|
||||
lookup_low = {
|
||||
// CP_RES_LFHF
|
||||
10'b0010_1111_11,
|
||||
10'b0010_1111_11,
|
||||
10'b0010_1111_11,
|
||||
10'b0010_1111_11,
|
||||
10'b0010_1111_11,
|
||||
10'b0010_1111_11,
|
||||
10'b0010_0111_11,
|
||||
10'b0010_0111_11,
|
||||
10'b0010_0111_11,
|
||||
10'b0010_1101_11,
|
||||
10'b0010_1101_11,
|
||||
10'b0010_1101_11,
|
||||
10'b0010_0011_11,
|
||||
10'b0010_0101_11,
|
||||
10'b0010_0101_11,
|
||||
10'b0010_0101_11,
|
||||
10'b0010_1001_11,
|
||||
10'b0010_1001_11,
|
||||
10'b0010_1110_11,
|
||||
10'b0010_1110_11,
|
||||
10'b0010_1110_11,
|
||||
10'b0010_1110_11,
|
||||
10'b0010_1110_11,
|
||||
10'b0010_1110_11,
|
||||
10'b0010_0001_11,
|
||||
10'b0010_0001_11,
|
||||
10'b0010_0001_11,
|
||||
10'b0010_0001_11,
|
||||
10'b0010_0001_11,
|
||||
10'b0010_0110_11,
|
||||
10'b0010_0110_11,
|
||||
10'b0010_0110_11,
|
||||
10'b0010_0110_11,
|
||||
10'b0010_0110_11,
|
||||
10'b0010_0110_11,
|
||||
10'b0010_0110_11,
|
||||
10'b0010_0110_11,
|
||||
10'b0010_0110_11,
|
||||
10'b0010_0110_11,
|
||||
10'b0010_1010_11,
|
||||
10'b0010_1010_11,
|
||||
10'b0010_1010_11,
|
||||
10'b0010_1010_11,
|
||||
10'b0010_1010_11,
|
||||
10'b0010_1010_11,
|
||||
10'b0010_1010_11,
|
||||
10'b0010_1010_11,
|
||||
10'b0010_1100_11,
|
||||
10'b0010_1100_11,
|
||||
10'b0010_1100_11,
|
||||
10'b0010_1100_11,
|
||||
10'b0010_1100_11,
|
||||
10'b0010_1100_11,
|
||||
10'b0010_1100_11,
|
||||
10'b0010_1100_11,
|
||||
10'b0010_1100_11,
|
||||
10'b0010_1100_11,
|
||||
10'b0010_1100_11,
|
||||
10'b0010_1100_11,
|
||||
10'b0010_1100_11,
|
||||
10'b0010_1100_11,
|
||||
10'b0010_1100_11,
|
||||
10'b0010_1100_11,
|
||||
10'b0010_1100_11
|
||||
};
|
||||
|
||||
lookup_high = {
|
||||
// CP_RES_LFHF
|
||||
10'b0010_1111_11,
|
||||
10'b0010_1111_11,
|
||||
10'b0010_1011_11,
|
||||
10'b0011_1111_11,
|
||||
10'b0100_1111_11,
|
||||
10'b0100_1111_11,
|
||||
10'b0101_1111_11,
|
||||
10'b0110_1111_11,
|
||||
10'b0111_1111_11,
|
||||
10'b0111_1111_11,
|
||||
10'b1100_1111_11,
|
||||
10'b1101_1111_11,
|
||||
10'b1110_1111_11,
|
||||
10'b1111_1111_11,
|
||||
10'b1111_1111_11,
|
||||
10'b1110_0111_11,
|
||||
10'b1110_1011_11,
|
||||
10'b1111_0111_11,
|
||||
10'b1111_1011_11,
|
||||
10'b1111_1011_11,
|
||||
10'b1110_1101_11,
|
||||
10'b1111_1101_11,
|
||||
10'b1111_1101_11,
|
||||
10'b1111_0011_11,
|
||||
10'b1111_0011_11,
|
||||
10'b1111_0011_11,
|
||||
10'b1110_0101_11,
|
||||
10'b1110_0101_11,
|
||||
10'b1110_0101_11,
|
||||
10'b1111_0101_11,
|
||||
10'b1111_0101_11,
|
||||
10'b1111_0101_11,
|
||||
10'b1111_1001_11,
|
||||
10'b1111_1001_11,
|
||||
10'b1111_1001_11,
|
||||
10'b1111_1001_11,
|
||||
10'b1111_1001_11,
|
||||
10'b1110_1110_11,
|
||||
10'b1110_1110_11,
|
||||
10'b1110_1110_11,
|
||||
10'b1110_1110_11,
|
||||
10'b1111_1110_11,
|
||||
10'b1111_1110_11,
|
||||
10'b1111_1110_11,
|
||||
10'b1111_1110_11,
|
||||
10'b1111_1110_11,
|
||||
10'b1111_1110_11,
|
||||
10'b1111_1110_11,
|
||||
10'b1110_0001_11,
|
||||
10'b1110_0001_11,
|
||||
10'b1110_0001_11,
|
||||
10'b1110_0001_11,
|
||||
10'b1110_0001_11,
|
||||
10'b1100_0110_11,
|
||||
10'b1100_0110_11,
|
||||
10'b1100_0110_11,
|
||||
10'b1100_0110_11,
|
||||
10'b1100_0110_11,
|
||||
10'b1100_0110_11,
|
||||
10'b1100_0110_11,
|
||||
10'b1100_1010_11,
|
||||
10'b1100_1010_11,
|
||||
10'b1100_1010_11,
|
||||
10'b1100_1010_11
|
||||
};
|
||||
|
||||
// Set lookup_entry with the explicit bits from lookup with a part select
|
||||
if(BANDWIDTH == "LOW") begin
|
||||
// Low Bandwidth
|
||||
mmcm_pll_filter_lookup = lookup_low[ ((64-divide)*10) +: 10];
|
||||
end else begin
|
||||
// High or optimized bandwidth
|
||||
mmcm_pll_filter_lookup = lookup_high[ ((64-divide)*10) +: 10];
|
||||
end
|
||||
|
||||
`ifdef DEBUG
|
||||
$display("filter_lookup: %b", mmcm_pll_filter_lookup);
|
||||
`endif
|
||||
end
|
||||
endfunction
|
||||
|
||||
// This function takes in the divide, phase, and duty cycle
|
||||
// setting to calculate the upper and lower counter registers.
|
||||
function [37:0] mmcm_pll_count_calc
|
||||
(
|
||||
input [7:0] divide, // Max divide is 128
|
||||
input signed [31:0] phase,
|
||||
input [31:0] duty_cycle // Multiplied by 100,000
|
||||
);
|
||||
|
||||
reg [13:0] div_calc;
|
||||
reg [16:0] phase_calc;
|
||||
|
||||
begin
|
||||
`ifdef DEBUG
|
||||
$display("mmcm_pll_count_calc- divide:%h, phase:%d, duty_cycle:%d",
|
||||
divide, phase, duty_cycle);
|
||||
`endif
|
||||
|
||||
// w_edge[13], no_count[12], high_time[11:6], low_time[5:0]
|
||||
div_calc = mmcm_pll_divider(divide, duty_cycle);
|
||||
// mx[10:9], pm[8:6], dt[5:0]
|
||||
phase_calc = mmcm_pll_phase(divide, phase);
|
||||
|
||||
// Return value is the upper and lower address of counter
|
||||
// Upper address is:
|
||||
// RESERVED [31:26]
|
||||
// MX [25:24]
|
||||
// EDGE [23]
|
||||
// NOCOUNT [22]
|
||||
// DELAY_TIME [21:16]
|
||||
// Lower Address is:
|
||||
// PHASE_MUX [15:13]
|
||||
// RESERVED [12]
|
||||
// HIGH_TIME [11:6]
|
||||
// LOW_TIME [5:0]
|
||||
|
||||
`ifdef DEBUG
|
||||
$display("div:%d dc:%d phase:%d ht:%d lt:%d ed:%d nc:%d mx:%d dt:%d pm:%d",
|
||||
divide, duty_cycle, phase, div_calc[11:6], div_calc[5:0],
|
||||
div_calc[13], div_calc[12],
|
||||
phase_calc[16:15], phase_calc[5:0], phase_calc[14:12]);
|
||||
`endif
|
||||
|
||||
mmcm_pll_count_calc =
|
||||
{
|
||||
// Upper Address
|
||||
6'h00, phase_calc[10:9], div_calc[13:12], phase_calc[5:0],
|
||||
// Lower Address
|
||||
phase_calc[8:6], 1'b0, div_calc[11:0]
|
||||
};
|
||||
end
|
||||
endfunction
|
||||
|
||||
|
||||
// This function takes in the divide, phase, and duty cycle
|
||||
// setting to calculate the upper and lower counter registers.
|
||||
// for fractional multiply/divide functions.
|
||||
//
|
||||
//
|
||||
function [37:0] mmcm_frac_count_calc
|
||||
(
|
||||
input [7:0] divide, // Max divide is 128
|
||||
input signed [31:0] phase,
|
||||
input [31:0] duty_cycle, // Multiplied by 1,000
|
||||
input [9:0] frac // Multiplied by 1000
|
||||
);
|
||||
|
||||
//Required for fractional divide calculations
|
||||
reg [7:0] lt_frac;
|
||||
reg [7:0] ht_frac;
|
||||
|
||||
reg /*[7:0]*/ wf_fall_frac;
|
||||
reg /*[7:0]*/ wf_rise_frac;
|
||||
|
||||
reg [31:0] a;
|
||||
reg [7:0] pm_rise_frac_filtered ;
|
||||
reg [7:0] pm_fall_frac_filtered ;
|
||||
reg [7:0] clkout0_divide_int;
|
||||
reg [2:0] clkout0_divide_frac;
|
||||
reg [7:0] even_part_high;
|
||||
reg [7:0] even_part_low;
|
||||
|
||||
reg [7:0] odd;
|
||||
reg [7:0] odd_and_frac;
|
||||
|
||||
reg [7:0] pm_fall;
|
||||
reg [7:0] pm_rise;
|
||||
reg [7:0] dt;
|
||||
reg [7:0] dt_int;
|
||||
reg [63:0] dt_calc;
|
||||
|
||||
reg [7:0] pm_rise_frac;
|
||||
reg [7:0] pm_fall_frac;
|
||||
|
||||
reg [31:0] a_per_in_octets;
|
||||
reg [31:0] a_phase_in_cycles;
|
||||
|
||||
parameter precision = 0.125;
|
||||
|
||||
reg [31:0] phase_fixed; // changed to 31:0 from 32:1 jt 5/2/11
|
||||
reg [31: 0] phase_pos;
|
||||
reg [31: 0] phase_vco;
|
||||
reg [31:0] temp;// changed to 31:0 from 32:1 jt 5/2/11
|
||||
reg [13:0] div_calc;
|
||||
reg [16:0] phase_calc;
|
||||
|
||||
begin
|
||||
`ifdef DEBUG
|
||||
$display("mmcm_frac_count_calc- divide:%h, phase:%d, duty_cycle:%d",
|
||||
divide, phase, duty_cycle);
|
||||
`endif
|
||||
|
||||
//convert phase to fixed
|
||||
if ((phase < -360000) || (phase > 360000)) begin
|
||||
`ifndef SYNTHESIS
|
||||
$display("ERROR: phase of $phase is not between -360000 and 360000");
|
||||
`endif
|
||||
$finish;
|
||||
end
|
||||
|
||||
|
||||
// Return value is
|
||||
// Transfer data
|
||||
// RESERVED [37:36]
|
||||
// FRAC_TIME [35:33]
|
||||
// FRAC_WF_FALL [32]
|
||||
// Upper address is:
|
||||
// RESERVED [31:26]
|
||||
// MX [25:24]
|
||||
// EDGE [23]
|
||||
// NOCOUNT [22]
|
||||
// DELAY_TIME [21:16]
|
||||
// Lower Address is:
|
||||
// PHASE_MUX [15:13]
|
||||
// RESERVED [12]
|
||||
// HIGH_TIME [11:6]
|
||||
// LOW_TIME [5:0]
|
||||
|
||||
|
||||
|
||||
clkout0_divide_frac = frac / 125;
|
||||
clkout0_divide_int = divide;
|
||||
|
||||
even_part_high = clkout0_divide_int >> 1;//$rtoi(clkout0_divide_int / 2);
|
||||
even_part_low = even_part_high;
|
||||
|
||||
odd = clkout0_divide_int - even_part_high - even_part_low;
|
||||
odd_and_frac = (8*odd) + clkout0_divide_frac;
|
||||
|
||||
lt_frac = even_part_high - (odd_and_frac <= 9);//IF(odd_and_frac>9,even_part_high, even_part_high - 1)
|
||||
ht_frac = even_part_low - (odd_and_frac <= 8);//IF(odd_and_frac>8,even_part_low, even_part_low- 1)
|
||||
|
||||
pm_fall = {odd[6:0],2'b00} + {6'h00, clkout0_divide_frac[2:1]}; // using >> instead of clkout0_divide_frac / 2
|
||||
pm_rise = 0; //0
|
||||
|
||||
wf_fall_frac = ((odd_and_frac >=2) && (odd_and_frac <=9)) || ((clkout0_divide_frac == 1) && (clkout0_divide_int == 2));//CRS610807
|
||||
wf_rise_frac = (odd_and_frac >=1) && (odd_and_frac <=8);//IF(odd_and_frac>=1,IF(odd_and_frac <= 8,1,0),0)
|
||||
|
||||
|
||||
|
||||
//Calculate phase in fractional cycles
|
||||
a_per_in_octets = (8 * divide) + (frac / 125) ;
|
||||
a_phase_in_cycles = (phase+10) * a_per_in_octets / 360000 ;//Adding 1 due to rounding errors
|
||||
pm_rise_frac = (a_phase_in_cycles[7:0] ==8'h00)?8'h00:a_phase_in_cycles[7:0] - {a_phase_in_cycles[7:3],3'b000};
|
||||
|
||||
dt_calc = ((phase+10) * a_per_in_octets / 8 )/360000 ;//TRUNC(phase* divide / 360); //or_simply (a_per_in_octets / 8)
|
||||
dt = dt_calc[7:0];
|
||||
|
||||
pm_rise_frac_filtered = (pm_rise_frac >=8) ? (pm_rise_frac ) - 8: pm_rise_frac ; //((phase_fixed * (divide + frac / 1000)) / 360) - {pm_rise_frac[7:3],3'b000};//$rtoi(clkout0_phase * clkout0_divide / 45);//a;
|
||||
|
||||
dt_int = dt + (& pm_rise_frac[7:4]); //IF(pm_rise_overwriting>7,dt+1,dt)
|
||||
pm_fall_frac = pm_fall + pm_rise_frac;
|
||||
pm_fall_frac_filtered = pm_fall + pm_rise_frac - {pm_fall_frac[7:3], 3'b000};
|
||||
|
||||
div_calc = mmcm_pll_divider(divide, duty_cycle); //Use to determine edge[7], no count[6]
|
||||
phase_calc = mmcm_pll_phase(divide, phase);// returns{mx[1:0], phase_mux[2:0], delay_time[5:0]}
|
||||
|
||||
mmcm_frac_count_calc[37:0] =
|
||||
{ 2'b00, pm_fall_frac_filtered[2:0], wf_fall_frac,
|
||||
1'b0, clkout0_divide_frac[2:0], 1'b1, wf_rise_frac, phase_calc[10:9], div_calc[13:12], dt[5:0],
|
||||
pm_rise_frac_filtered[2], pm_rise_frac_filtered[1], pm_rise_frac_filtered[0], 1'b0, ht_frac[5:0], lt_frac[5:0]
|
||||
} ;
|
||||
|
||||
`ifdef DEBUG
|
||||
$display("-%d.%d p%d>> :DADDR_9_15 frac30to28.frac_en.wf_r_frac.dt:%b%d%d_%b:DADDR_7_13 pm_f_frac_filtered_29to27.wf_f_frac_26:%b%d:DADDR_8_14.pm_r_frac_filt_15to13.ht_frac.lt_frac:%b%b%b:", divide, frac, phase, clkout0_divide_frac, 1, wf_rise_frac, dt, pm_fall_frac_filtered, wf_fall_frac, pm_rise_frac_filtered, ht_frac, lt_frac);
|
||||
`endif
|
||||
|
||||
end
|
||||
endfunction
|
||||
|
||||
+530
@@ -0,0 +1,530 @@
|
||||
///////////////////////////////////////////////////////////////////////////////
|
||||
//
|
||||
// Company: Xilinx
|
||||
// Engineer: Jim Tatsukawa
|
||||
// Date: 6/15/2015
|
||||
// Design Name: PLLE3 DRP
|
||||
// Module Name: plle3_drp_func.h
|
||||
// Version: 1.10
|
||||
// Target Devices: UltraScale Architecture
|
||||
// Tool versions: 2015.1
|
||||
// Description: This header provides the functions necessary to
|
||||
// calculate the DRP register values for the V6 PLL.
|
||||
//
|
||||
// Revision Notes: 8/11 - PLLE3 updated for PLLE3 file 4564419
|
||||
// Revision Notes: 6/15 - pll_filter_lookup fixed for max M of 19
|
||||
// PM_Rise bits have been removed for PLLE3
|
||||
//
|
||||
// Disclaimer: XILINX IS PROVIDING THIS DESIGN, CODE, OR
|
||||
// INFORMATION "AS IS" SOLELY FOR USE IN DEVELOPING
|
||||
// PROGRAMS AND SOLUTIONS FOR XILINX DEVICES. BY
|
||||
// PROVIDING THIS DESIGN, CODE, OR INFORMATION AS
|
||||
// ONE POSSIBLE IMPLEMENTATION OF THIS FEATURE,
|
||||
// APPLICATION OR STANDARD, XILINX IS MAKING NO
|
||||
// REPRESENTATION THAT THIS IMPLEMENTATION IS FREE
|
||||
// FROM ANY CLAIMS OF INFRINGEMENT, AND YOU ARE
|
||||
// RESPONSIBLE FOR OBTAINING ANY RIGHTS YOU MAY
|
||||
// REQUIRE FOR YOUR IMPLEMENTATION. XILINX
|
||||
// EXPRESSLY DISCLAIMS ANY WARRANTY WHATSOEVER WITH
|
||||
// RESPECT TO THE ADEQUACY OF THE IMPLEMENTATION,
|
||||
// INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OR
|
||||
// REPRESENTATIONS THAT THIS IMPLEMENTATION IS FREE
|
||||
// FROM CLAIMS OF INFRINGEMENT, IMPLIED WARRANTIES
|
||||
// OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
||||
// PURPOSE.
|
||||
//
|
||||
// (c) Copyright 2009-2010 Xilinx, Inc.
|
||||
// All rights reserved.
|
||||
//
|
||||
///////////////////////////////////////////////////////////////////////////////
|
||||
|
||||
// These are user functions that should not be modified. Changes to the defines
|
||||
// or code within the functions may alter the accuracy of the calculations.
|
||||
|
||||
// Define debug to provide extra messages durring elaboration
|
||||
//`define DEBUG 1
|
||||
|
||||
// FRAC_PRECISION describes the width of the fractional portion of the fixed
|
||||
// point numbers. These should not be modified, they are for development
|
||||
// only
|
||||
`define FRAC_PRECISION 10
|
||||
// FIXED_WIDTH describes the total size for fixed point calculations(int+frac).
|
||||
// Warning: L.50 and below will not calculate properly with FIXED_WIDTHs
|
||||
// greater than 32
|
||||
`define FIXED_WIDTH 32
|
||||
|
||||
// This function takes a fixed point number and rounds it to the nearest
|
||||
// fractional precision bit.
|
||||
function [`FIXED_WIDTH:1] round_frac
|
||||
(
|
||||
// Input is (FIXED_WIDTH-FRAC_PRECISION).FRAC_PRECISION fixed point number
|
||||
input [`FIXED_WIDTH:1] decimal,
|
||||
|
||||
// This describes the precision of the fraction, for example a value
|
||||
// of 1 would modify the fractional so that instead of being a .16
|
||||
// fractional, it would be a .1 (rounded to the nearest 0.5 in turn)
|
||||
input [`FIXED_WIDTH:1] precision
|
||||
);
|
||||
|
||||
begin
|
||||
|
||||
`ifdef DEBUG
|
||||
$display("round_frac - decimal: %h, precision: %h", decimal, precision);
|
||||
`endif
|
||||
// If the fractional precision bit is high then round up
|
||||
if( decimal[(`FRAC_PRECISION-precision)] == 1'b1) begin
|
||||
round_frac = decimal + (1'b1 << (`FRAC_PRECISION-precision));
|
||||
end else begin
|
||||
round_frac = decimal;
|
||||
end
|
||||
`ifdef DEBUG
|
||||
$display("round_frac: %h", round_frac);
|
||||
`endif
|
||||
end
|
||||
endfunction
|
||||
|
||||
// This function calculates high_time, low_time, w_edge, and no_count
|
||||
// of a non-fractional counter based on the divide and duty cycle
|
||||
//
|
||||
// NOTE: high_time and low_time are returned as integers between 0 and 63
|
||||
// inclusive. 64 should equal 6'b000000 (in other words it is okay to
|
||||
// ignore the overflow)
|
||||
function [13:0] mmcm_pll_divider
|
||||
(
|
||||
input [7:0] divide, // Max divide is 128
|
||||
input [31:0] duty_cycle // Duty cycle is multiplied by 100,000
|
||||
);
|
||||
|
||||
reg [`FIXED_WIDTH:1] duty_cycle_fix;
|
||||
|
||||
// High/Low time is initially calculated with a wider integer to prevent a
|
||||
// calculation error when it overflows to 64.
|
||||
reg [6:0] high_time;
|
||||
reg [6:0] low_time;
|
||||
reg w_edge;
|
||||
reg no_count;
|
||||
|
||||
reg [`FIXED_WIDTH:1] temp;
|
||||
|
||||
begin
|
||||
// Duty Cycle must be between 0 and 1,000
|
||||
if(duty_cycle <=0 || duty_cycle >= 100000) begin
|
||||
`ifndef SYNTHESIS
|
||||
$display("ERROR: duty_cycle: %d is invalid", duty_cycle);
|
||||
`endif
|
||||
$finish;
|
||||
end
|
||||
|
||||
// Convert to FIXED_WIDTH-FRAC_PRECISION.FRAC_PRECISION fixed point
|
||||
duty_cycle_fix = (duty_cycle << `FRAC_PRECISION) / 100_000;
|
||||
|
||||
`ifdef DEBUG
|
||||
$display("duty_cycle_fix: %h", duty_cycle_fix);
|
||||
`endif
|
||||
|
||||
// If the divide is 1 nothing needs to be set except the no_count bit.
|
||||
// Other values are dummies
|
||||
if(divide == 7'h01) begin
|
||||
high_time = 7'h01;
|
||||
w_edge = 1'b0;
|
||||
low_time = 7'h01;
|
||||
no_count = 1'b1;
|
||||
end else begin
|
||||
temp = round_frac(duty_cycle_fix*divide, 1);
|
||||
|
||||
// comes from above round_frac
|
||||
high_time = temp[`FRAC_PRECISION+7:`FRAC_PRECISION+1];
|
||||
// If the duty cycle * divide rounded is .5 or greater then this bit
|
||||
// is set.
|
||||
w_edge = temp[`FRAC_PRECISION]; // comes from round_frac
|
||||
|
||||
// If the high time comes out to 0, it needs to be set to at least 1
|
||||
// and w_edge set to 0
|
||||
if(high_time == 7'h00) begin
|
||||
high_time = 7'h01;
|
||||
w_edge = 1'b0;
|
||||
end
|
||||
|
||||
if(high_time == divide) begin
|
||||
high_time = divide - 1;
|
||||
w_edge = 1'b1;
|
||||
end
|
||||
|
||||
// Calculate low_time based on the divide setting and set no_count to
|
||||
// 0 as it is only used when divide is 1.
|
||||
low_time = divide - high_time;
|
||||
no_count = 1'b0;
|
||||
end
|
||||
|
||||
// Set the return value.
|
||||
mmcm_pll_divider = {w_edge,no_count,high_time[5:0],low_time[5:0]};
|
||||
end
|
||||
endfunction
|
||||
|
||||
// This function calculates mx, delay_time, and phase_mux
|
||||
// of a non-fractional counter based on the divide and phase
|
||||
//
|
||||
// NOTE: The only valid value for the MX bits is 2'b00 to ensure the coarse mux
|
||||
// is used.
|
||||
function [10:0] mmcm_pll_phase
|
||||
(
|
||||
// divide must be an integer (use fractional if not)
|
||||
// assumed that divide already checked to be valid
|
||||
input [7:0] divide, // Max divide is 128
|
||||
|
||||
// Phase is given in degrees (-360,000 to 360,000)
|
||||
input signed [31:0] phase
|
||||
);
|
||||
|
||||
reg [`FIXED_WIDTH:1] phase_in_cycles;
|
||||
reg [`FIXED_WIDTH:1] phase_fixed;
|
||||
reg [1:0] mx;
|
||||
reg [5:0] delay_time;
|
||||
reg [2:0] phase_mux;
|
||||
|
||||
reg [`FIXED_WIDTH:1] temp;
|
||||
|
||||
begin
|
||||
`ifdef DEBUG
|
||||
$display("mmcm_pll_phase-divide:%d,phase:%d",
|
||||
divide, phase);
|
||||
`endif
|
||||
|
||||
if ((phase < -360000) || (phase > 360000)) begin
|
||||
`ifndef SYNTHESIS
|
||||
$display("ERROR: phase of $phase is not between -360000 and 360000");
|
||||
`endif
|
||||
$finish;
|
||||
end
|
||||
|
||||
// If phase is less than 0, convert it to a positive phase shift
|
||||
// Convert to (FIXED_WIDTH-FRAC_PRECISION).FRAC_PRECISION fixed point
|
||||
if(phase < 0) begin
|
||||
phase_fixed = ( (phase + 360000) << `FRAC_PRECISION ) / 1000;
|
||||
end else begin
|
||||
phase_fixed = ( phase << `FRAC_PRECISION ) / 1000;
|
||||
end
|
||||
|
||||
// Put phase in terms of decimal number of vco clock cycles
|
||||
phase_in_cycles = ( phase_fixed * divide ) / 360;
|
||||
|
||||
`ifdef DEBUG
|
||||
$display("phase_in_cycles: %h", phase_in_cycles);
|
||||
`endif
|
||||
|
||||
|
||||
temp = round_frac(phase_in_cycles, 3);
|
||||
|
||||
// set mx to 2'b00 that the phase mux from the VCO is enabled
|
||||
mx = 2'b00;
|
||||
phase_mux = temp[`FRAC_PRECISION:`FRAC_PRECISION-2];
|
||||
delay_time = temp[`FRAC_PRECISION+6:`FRAC_PRECISION+1];
|
||||
|
||||
`ifdef DEBUG
|
||||
$display("temp: %h", temp);
|
||||
`endif
|
||||
|
||||
// Setup the return value
|
||||
mmcm_pll_phase={mx, phase_mux, delay_time};
|
||||
end
|
||||
endfunction
|
||||
|
||||
// This function takes the divide value and outputs the necessary lock values
|
||||
function [39:0] mmcm_pll_lock_lookup
|
||||
(
|
||||
input [6:0] divide // Max divide is 64
|
||||
);
|
||||
|
||||
reg [759:0] lookup;
|
||||
|
||||
begin
|
||||
lookup = {
|
||||
// This table is composed of:
|
||||
// LockRefDly_LockFBDly_LockCnt_LockSatHigh_UnlockCnt
|
||||
40'b00110_00110_1111101000_1111101001_0000000001, //1
|
||||
40'b00110_00110_1111101000_1111101001_0000000001, //2
|
||||
40'b01000_01000_1111101000_1111101001_0000000001, //3
|
||||
40'b01011_01011_1111101000_1111101001_0000000001, //4
|
||||
40'b01110_01110_1111101000_1111101001_0000000001, //5
|
||||
40'b10001_10001_1111101000_1111101001_0000000001, //6
|
||||
40'b10011_10011_1111101000_1111101001_0000000001, //7
|
||||
40'b10110_10110_1111101000_1111101001_0000000001, //8
|
||||
40'b11001_11001_1111101000_1111101001_0000000001, //9
|
||||
40'b11100_11100_1111101000_1111101001_0000000001, //10
|
||||
40'b11111_11111_1110000100_1111101001_0000000001, //11
|
||||
40'b11111_11111_1100111001_1111101001_0000000001, //12
|
||||
40'b11111_11111_1011101110_1111101001_0000000001, //13
|
||||
40'b11111_11111_1010111100_1111101001_0000000001, //14
|
||||
40'b11111_11111_1010001010_1111101001_0000000001, //15
|
||||
40'b11111_11111_1001110001_1111101001_0000000001, //16
|
||||
40'b11111_11111_1000111111_1111101001_0000000001, //17
|
||||
40'b11111_11111_1000100110_1111101001_0000000001, //18
|
||||
40'b11111_11111_1000001101_1111101001_0000000001 //19
|
||||
|
||||
};
|
||||
|
||||
// Set lookup_entry with the explicit bits from lookup with a part select
|
||||
mmcm_pll_lock_lookup = lookup[ ((19-divide)*40) +: 40];
|
||||
`ifdef DEBUG
|
||||
$display("lock_lookup: %b", mmcm_pll_lock_lookup);
|
||||
`endif
|
||||
end
|
||||
endfunction
|
||||
|
||||
// This function takes the divide value and the bandwidth setting of the PLL
|
||||
// and outputs the digital filter settings necessary. Removing bandwidth setting for PLLE3.
|
||||
function [9:0] mmcm_pll_filter_lookup
|
||||
(
|
||||
input [6:0] divide // Max divide is 19
|
||||
);
|
||||
|
||||
reg [639:0] lookup;
|
||||
reg [9:0] lookup_entry;
|
||||
|
||||
begin
|
||||
|
||||
lookup = {
|
||||
// CP_RES_LFHF
|
||||
10'b0010_1111_01, //1
|
||||
10'b0010_0011_11, //2
|
||||
10'b0011_0011_11, //3
|
||||
10'b0010_0001_11, //4
|
||||
10'b0010_0110_11, //5
|
||||
10'b0010_1010_11, //6
|
||||
10'b0010_1010_11, //7
|
||||
10'b0011_0110_11, //8
|
||||
10'b0010_1100_11, //9
|
||||
10'b0010_1100_11, //10
|
||||
10'b0010_1100_11, //11
|
||||
10'b0010_0010_11, //12
|
||||
10'b0011_1100_11, //13
|
||||
10'b0011_1100_11, //14
|
||||
10'b0011_1100_11, //15
|
||||
10'b0011_1100_11, //16
|
||||
10'b0011_0010_11, //17
|
||||
10'b0011_0010_11, //18
|
||||
10'b0011_0010_11 //19
|
||||
};
|
||||
|
||||
mmcm_pll_filter_lookup = lookup [ ((19-divide)*10) +: 10];
|
||||
|
||||
`ifdef DEBUG
|
||||
$display("filter_lookup: %b", mmcm_pll_filter_lookup);
|
||||
`endif
|
||||
end
|
||||
endfunction
|
||||
|
||||
// This function set the CLKOUTPHY divide settings to match
|
||||
// the desired CLKOUTPHY_MODE setting. To create VCO_X2, then
|
||||
// the CLKOUTPHY will be set to 2'b00 since the VCO is internally
|
||||
// doubled and 2'b00 will represent divide by 1. Similarly "VCO" // will need to divide the doubled clock VCO clock frequency by // 2 therefore 2'b01 will match a divide by 2.And VCO_HALF will // need to divide the doubled VCO by 4, therefore 2'b10
|
||||
function [9:0] mmcm_pll_clkoutphy_calc
|
||||
(
|
||||
input [8*9:0] CLKOUTPHY_MODE
|
||||
);
|
||||
|
||||
if(CLKOUTPHY_MODE == "VCO_X2") begin
|
||||
mmcm_pll_clkoutphy_calc= 2'b00;
|
||||
end else if(CLKOUTPHY_MODE == "VCO") begin
|
||||
mmcm_pll_clkoutphy_calc= 2'b01;
|
||||
end else if(CLKOUTPHY_MODE == "CLKIN") begin
|
||||
mmcm_pll_clkoutphy_calc= 2'b11;
|
||||
end else begin // Assume "VCO_HALF"
|
||||
mmcm_pll_clkoutphy_calc= 2'b10;
|
||||
end
|
||||
|
||||
endfunction
|
||||
|
||||
|
||||
// This function takes in the divide, phase, and duty cycle
|
||||
// setting to calculate the upper and lower counter registers.
|
||||
function [37:0] mmcm_pll_count_calc
|
||||
(
|
||||
input [7:0] divide, // Max divide is 128
|
||||
input signed [31:0] phase,
|
||||
input [31:0] duty_cycle // Multiplied by 100,000
|
||||
);
|
||||
|
||||
reg [13:0] div_calc;
|
||||
reg [16:0] phase_calc;
|
||||
|
||||
begin
|
||||
`ifdef DEBUG
|
||||
$display("mmcm_pll_count_calc- divide:%h, phase:%d, duty_cycle:%d",
|
||||
divide, phase, duty_cycle);
|
||||
`endif
|
||||
|
||||
// w_edge[13], no_count[12], high_time[11:6], low_time[5:0]
|
||||
div_calc = mmcm_pll_divider(divide, duty_cycle);
|
||||
// mx[10:9], pm[8:6], dt[5:0]
|
||||
phase_calc = mmcm_pll_phase(divide, phase);
|
||||
|
||||
// Return value is the upper and lower address of counter
|
||||
// Upper address is:
|
||||
// RESERVED [31:26]
|
||||
// MX [25:24]
|
||||
// EDGE [23]
|
||||
// NOCOUNT [22]
|
||||
// DELAY_TIME [21:16]
|
||||
// Lower Address is:
|
||||
// PHASE_MUX [15:13]
|
||||
// RESERVED [12]
|
||||
// HIGH_TIME [11:6]
|
||||
// LOW_TIME [5:0]
|
||||
|
||||
`ifdef DEBUG
|
||||
$display("div:%d dc:%d phase:%d ht:%d lt:%d ed:%d nc:%d mx:%d dt:%d pm:%d",
|
||||
divide, duty_cycle, phase, div_calc[11:6], div_calc[5:0],
|
||||
div_calc[13], div_calc[12],
|
||||
phase_calc[16:15], phase_calc[5:0], 3'b000);//Removed PM_Rise bits
|
||||
`endif
|
||||
|
||||
mmcm_pll_count_calc =
|
||||
{
|
||||
// Upper Address
|
||||
6'h00, phase_calc[10:9], div_calc[13:12], phase_calc[5:0],
|
||||
// Lower Address
|
||||
phase_calc[8:6], 1'b0, div_calc[11:0]
|
||||
};
|
||||
end
|
||||
endfunction
|
||||
|
||||
|
||||
// This function takes in the divide, phase, and duty cycle
|
||||
// setting to calculate the upper and lower counter registers.
|
||||
// for fractional multiply/divide functions.
|
||||
//
|
||||
//
|
||||
function [37:0] mmcm_pll_frac_count_calc
|
||||
(
|
||||
input [7:0] divide, // Max divide is 128
|
||||
input signed [31:0] phase,
|
||||
input [31:0] duty_cycle, // Multiplied by 1,000
|
||||
input [9:0] frac // Multiplied by 1000
|
||||
);
|
||||
|
||||
//Required for fractional divide calculations
|
||||
reg [7:0] lt_frac;
|
||||
reg [7:0] ht_frac;
|
||||
|
||||
reg /*[7:0]*/ wf_fall_frac;
|
||||
reg /*[7:0]*/ wf_rise_frac;
|
||||
|
||||
reg [31:0] a;
|
||||
reg [7:0] pm_rise_frac_filtered ;
|
||||
reg [7:0] pm_fall_frac_filtered ;
|
||||
reg [7:0] clkout0_divide_int;
|
||||
reg [2:0] clkout0_divide_frac;
|
||||
reg [7:0] even_part_high;
|
||||
reg [7:0] even_part_low;
|
||||
|
||||
reg [7:0] odd;
|
||||
reg [7:0] odd_and_frac;
|
||||
|
||||
reg [7:0] pm_fall;
|
||||
reg [7:0] pm_rise;
|
||||
reg [7:0] dt;
|
||||
reg [7:0] dt_int;
|
||||
reg [63:0] dt_calc;
|
||||
|
||||
reg [7:0] pm_rise_frac;
|
||||
reg [7:0] pm_fall_frac;
|
||||
|
||||
reg [31:0] a_per_in_octets;
|
||||
reg [31:0] a_phase_in_cycles;
|
||||
|
||||
parameter precision = 0.125;
|
||||
|
||||
reg [31:0] phase_fixed; // changed to 31:0 from 32:1 jt 5/2/11
|
||||
reg [31: 0] phase_pos;
|
||||
reg [31: 0] phase_vco;
|
||||
reg [31:0] temp;// changed to 31:0 from 32:1 jt 5/2/11
|
||||
reg [13:0] div_calc;
|
||||
reg [16:0] phase_calc;
|
||||
|
||||
begin
|
||||
`ifdef DEBUG
|
||||
$display("mmcm_pll_frac_count_calc- divide:%h, phase:%d, duty_cycle:%d",
|
||||
divide, phase, duty_cycle);
|
||||
`endif
|
||||
|
||||
//convert phase to fixed
|
||||
if ((phase < -360000) || (phase > 360000)) begin
|
||||
`ifndef SYNTHESIS
|
||||
$display("ERROR: phase of $phase is not between -360000 and 360000");
|
||||
`endif
|
||||
$finish;
|
||||
end
|
||||
|
||||
|
||||
// Return value is
|
||||
// Transfer data
|
||||
// RESERVED [37:36]
|
||||
// FRAC_TIME [35:33]
|
||||
// FRAC_WF_FALL [32]
|
||||
// Upper address is:
|
||||
// RESERVED [31:26]
|
||||
// MX [25:24]
|
||||
// EDGE [23]
|
||||
// NOCOUNT [22]
|
||||
// DELAY_TIME [21:16]
|
||||
// Lower Address is:
|
||||
// PHASE_MUX [15:13]
|
||||
// RESERVED [12]
|
||||
// HIGH_TIME [11:6]
|
||||
// LOW_TIME [5:0]
|
||||
|
||||
|
||||
|
||||
clkout0_divide_frac = frac / 125;
|
||||
clkout0_divide_int = divide;
|
||||
|
||||
even_part_high = clkout0_divide_int >> 1;//$rtoi(clkout0_divide_int / 2);
|
||||
even_part_low = even_part_high;
|
||||
|
||||
odd = clkout0_divide_int - even_part_high - even_part_low;
|
||||
odd_and_frac = (8*odd) + clkout0_divide_frac;
|
||||
|
||||
lt_frac = even_part_high - (odd_and_frac <= 9);//IF(odd_and_frac>9,even_part_high, even_part_high - 1)
|
||||
ht_frac = even_part_low - (odd_and_frac <= 8);//IF(odd_and_frac>8,even_part_low, even_part_low- 1)
|
||||
|
||||
pm_fall = {odd[6:0],2'b00} + {6'h00, clkout0_divide_frac[2:1]}; // using >> instead of clkout0_divide_frac / 2
|
||||
pm_rise = 0; //0
|
||||
|
||||
wf_fall_frac = (odd_and_frac >=2) && (odd_and_frac <=9);//IF(odd_and_frac>=2,IF(odd_and_frac <= 9,1,0),0)
|
||||
wf_rise_frac = (odd_and_frac >=1) && (odd_and_frac <=8);//IF(odd_and_frac>=1,IF(odd_and_frac <= 8,1,0),0)
|
||||
|
||||
|
||||
|
||||
//Calculate phase in fractional cycles
|
||||
a_per_in_octets = (8 * divide) + (frac / 125) ;
|
||||
a_phase_in_cycles = (phase+10) * a_per_in_octets / 360000 ;//Adding 1 due to rounding errors
|
||||
pm_rise_frac = (a_phase_in_cycles[7:0] ==8'h00)?8'h00:a_phase_in_cycles[7:0] - {a_phase_in_cycles[7:3],3'b000};
|
||||
|
||||
dt_calc = ((phase+10) * a_per_in_octets / 8 )/360000 ;//TRUNC(phase* divide / 360); //or_simply (a_per_in_octets / 8)
|
||||
dt = dt_calc[7:0];
|
||||
|
||||
pm_rise_frac_filtered = (pm_rise_frac >=8) ? (pm_rise_frac ) - 8: pm_rise_frac ; //((phase_fixed * (divide + frac / 1000)) / 360) - {pm_rise_frac[7:3],3'b000};//$rtoi(clkout0_phase * clkout0_divide / 45);//a;
|
||||
|
||||
dt_int = dt + (& pm_rise_frac[7:4]); //IF(pm_rise_overwriting>7,dt+1,dt)
|
||||
pm_fall_frac = pm_fall + pm_rise_frac;
|
||||
pm_fall_frac_filtered = pm_fall + pm_rise_frac - {pm_fall_frac[7:3], 3'b000};
|
||||
|
||||
div_calc = mmcm_pll_divider(divide, duty_cycle); //Use to determine edge[7], no count[6]
|
||||
phase_calc = mmcm_pll_phase(divide, phase);// returns{mx[1:0], phase_mux[2:0], delay_time[5:0]}
|
||||
|
||||
mmcm_pll_frac_count_calc[37:0] =
|
||||
{ 2'b00, pm_fall_frac_filtered[2:0], wf_fall_frac,
|
||||
1'b0, clkout0_divide_frac[2:0], 1'b1, wf_rise_frac, phase_calc[10:9], div_calc[13:12], dt[5:0],
|
||||
3'b000, 1'b0, ht_frac[5:0], lt_frac[5:0] //Removed PM_Rise bits
|
||||
// pm_rise_frac_filtered[2], pm_rise_frac_filtered[1], pm_rise_frac_filtered[0], 1'b0, ht_frac[5:0], lt_frac[5:0]
|
||||
} ;
|
||||
|
||||
`ifdef DEBUG
|
||||
$display("-%d.%d p%d>> :DADDR_9_15 frac30to28.frac_en.wf_r_frac.dt:%b%d%d_%b:DADDR_7_13 pm_f_frac_filtered_29to27.wf_f_frac_26:%b%d:DADDR_8_14.pm_r_frac_filt_15to13.ht_frac.lt_frac:%b%b%b:", divide, frac, phase, clkout0_divide_frac, 1, wf_rise_frac, dt, pm_fall_frac_filtered, wf_fall_frac, 3'b000, ht_frac, lt_frac);
|
||||
`endif
|
||||
|
||||
end
|
||||
endfunction
|
||||
|
||||
|
||||
+861
@@ -0,0 +1,861 @@
|
||||
///////////////////////////////////////////////////////////////////////////////
|
||||
//
|
||||
// Company: Xilinx
|
||||
// Engineer: Jim Tatsukawa. Updated by Ralf Krueger
|
||||
// Date: 7/30/2014
|
||||
// Design Name: MMCME4 DRP
|
||||
// Module Name: mmcme4_drp_func.h
|
||||
// Version: 1.31
|
||||
// Target Devices: UltraScale Plus Architecture
|
||||
// Tool versions: 2017.1
|
||||
// Description: This header provides the functions necessary to
|
||||
// calculate the DRP register values for UltraScal+ MMCM.
|
||||
//
|
||||
// Revision Notes: 3/22 - Updating lookup_low/lookup_high (CR)
|
||||
// 4/13 - Fractional divide function in mmcm_frac_count_calc function
|
||||
// 2/28/17 - Updated for Ultrascale Plus
|
||||
//
|
||||
// Disclaimer: XILINX IS PROVIDING THIS DESIGN, CODE, OR
|
||||
// INFORMATION "AS IS" SOLELY FOR USE IN DEVELOPING
|
||||
// PROGRAMS AND SOLUTIONS FOR XILINX DEVICES. BY
|
||||
// PROVIDING THIS DESIGN, CODE, OR INFORMATION AS
|
||||
// ONE POSSIBLE IMPLEMENTATION OF THIS FEATURE,
|
||||
// APPLICATION OR STANDARD, XILINX IS MAKING NO
|
||||
// REPRESENTATION THAT THIS IMPLEMENTATION IS FREE
|
||||
// FROM ANY CLAIMS OF INFRINGEMENT, AND YOU ARE
|
||||
// RESPONSIBLE FOR OBTAINING ANY RIGHTS YOU MAY
|
||||
// REQUIRE FOR YOUR IMPLEMENTATION. XILINX
|
||||
// EXPRESSLY DISCLAIMS ANY WARRANTY WHATSOEVER WITH
|
||||
// RESPECT TO THE ADEQUACY OF THE IMPLEMENTATION,
|
||||
// INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OR
|
||||
// REPRESENTATIONS THAT THIS IMPLEMENTATION IS FREE
|
||||
// FROM CLAIMS OF INFRINGEMENT, IMPLIED WARRANTIES
|
||||
// OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
||||
// PURPOSE.
|
||||
//
|
||||
// (c) Copyright 2009-2017 Xilinx, Inc.
|
||||
// All rights reserved.
|
||||
//
|
||||
///////////////////////////////////////////////////////////////////////////////
|
||||
|
||||
// These are user functions that should not be modified. Changes to the defines
|
||||
// or code within the functions may alter the accuracy of the calculations.
|
||||
|
||||
// Define debug to provide extra messages during elaboration
|
||||
//`define DEBUG 1
|
||||
|
||||
// FRAC_PRECISION describes the width of the fractional portion of the fixed
|
||||
// point numbers. These should not be modified, they are for development only
|
||||
`define FRAC_PRECISION 10
|
||||
// FIXED_WIDTH describes the total size for fixed point calculations(int+frac).
|
||||
// Warning: L.50 and below will not calculate properly with FIXED_WIDTHs
|
||||
// greater than 32
|
||||
`define FIXED_WIDTH 32
|
||||
|
||||
// This function takes a fixed point number and rounds it to the nearest
|
||||
// fractional precision bit.
|
||||
function [`FIXED_WIDTH:1] round_frac
|
||||
(
|
||||
// Input is (FIXED_WIDTH-FRAC_PRECISION).FRAC_PRECISION fixed point number
|
||||
input [`FIXED_WIDTH:1] decimal,
|
||||
|
||||
// This describes the precision of the fraction, for example a value
|
||||
// of 1 would modify the fractional so that instead of being a .16
|
||||
// fractional, it would be a .1 (rounded to the nearest 0.5 in turn)
|
||||
input [`FIXED_WIDTH:1] precision
|
||||
);
|
||||
|
||||
begin
|
||||
|
||||
`ifdef DEBUG
|
||||
$display("round_frac - decimal: %h, precision: %h", decimal, precision);
|
||||
`endif
|
||||
// If the fractional precision bit is high then round up
|
||||
if( decimal[(`FRAC_PRECISION-precision)] == 1'b1) begin
|
||||
round_frac = decimal + (1'b1 << (`FRAC_PRECISION-precision));
|
||||
end else begin
|
||||
round_frac = decimal;
|
||||
end
|
||||
`ifdef DEBUG
|
||||
$display("round_frac: %h", round_frac);
|
||||
`endif
|
||||
end
|
||||
endfunction
|
||||
|
||||
// This function calculates high_time, low_time, w_edge, and no_count
|
||||
// of a non-fractional counter based on the divide and duty cycle
|
||||
//
|
||||
// NOTE: high_time and low_time are returned as integers between 0 and 63
|
||||
// inclusive. 64 should equal 6'b000000 (in other words it is okay to
|
||||
// ignore the overflow)
|
||||
function [13:0] mmcm_pll_divider
|
||||
(
|
||||
input [7:0] divide, // Max divide is 128
|
||||
input [31:0] duty_cycle // Duty cycle is multiplied by 100,000
|
||||
);
|
||||
|
||||
reg [`FIXED_WIDTH:1] duty_cycle_fix;
|
||||
|
||||
// High/Low time is initially calculated with a wider integer to prevent a
|
||||
// calculation error when it overflows to 64.
|
||||
reg [6:0] high_time;
|
||||
reg [6:0] low_time;
|
||||
reg w_edge;
|
||||
reg no_count;
|
||||
|
||||
reg [`FIXED_WIDTH:1] temp;
|
||||
|
||||
begin
|
||||
// Duty Cycle must be between 0 and 1,000
|
||||
if(duty_cycle <=0 || duty_cycle >= 100000) begin
|
||||
`ifndef SYNTHESIS
|
||||
$display("ERROR: duty_cycle: %d is invalid", duty_cycle);
|
||||
`endif
|
||||
$finish;
|
||||
end
|
||||
|
||||
// Convert to FIXED_WIDTH-FRAC_PRECISION.FRAC_PRECISION fixed point
|
||||
duty_cycle_fix = (duty_cycle << `FRAC_PRECISION) / 100_000;
|
||||
|
||||
`ifdef DEBUG
|
||||
$display("duty_cycle_fix: %h", duty_cycle_fix);
|
||||
`endif
|
||||
|
||||
// If the divide is 1 nothing needs to be set except the no_count bit.
|
||||
// Other values are dummies
|
||||
if(divide == 7'h01) begin
|
||||
high_time = 7'h01;
|
||||
w_edge = 1'b0;
|
||||
low_time = 7'h01;
|
||||
no_count = 1'b1;
|
||||
end else begin
|
||||
temp = round_frac(duty_cycle_fix*divide, 1);
|
||||
|
||||
// comes from above round_frac
|
||||
high_time = temp[`FRAC_PRECISION+7:`FRAC_PRECISION+1];
|
||||
// If the duty cycle * divide rounded is .5 or greater then this bit
|
||||
// is set.
|
||||
w_edge = temp[`FRAC_PRECISION]; // comes from round_frac
|
||||
|
||||
// If the high time comes out to 0, it needs to be set to at least 1
|
||||
// and w_edge set to 0
|
||||
if(high_time == 7'h00) begin
|
||||
high_time = 7'h01;
|
||||
w_edge = 1'b0;
|
||||
end
|
||||
|
||||
if(high_time == divide) begin
|
||||
high_time = divide - 1;
|
||||
w_edge = 1'b1;
|
||||
end
|
||||
|
||||
// Calculate low_time based on the divide setting and set no_count to
|
||||
// 0 as it is only used when divide is 1.
|
||||
low_time = divide - high_time;
|
||||
no_count = 1'b0;
|
||||
end
|
||||
|
||||
// Set the return value.
|
||||
mmcm_pll_divider = {w_edge,no_count,high_time[5:0],low_time[5:0]};
|
||||
end
|
||||
endfunction
|
||||
|
||||
// This function calculates mx, delay_time, and phase_mux
|
||||
// of a non-fractional counter based on the divide and phase
|
||||
//
|
||||
// NOTE: The only valid value for the MX bits is 2'b00 to ensure the coarse mux
|
||||
// is used.
|
||||
function [10:0] mmcm_pll_phase
|
||||
(
|
||||
// divide must be an integer (use fractional if not)
|
||||
// assumed that divide already checked to be valid
|
||||
input [7:0] divide, // Max divide is 128
|
||||
|
||||
// Phase is given in degrees (-360,000 to 360,000)
|
||||
input signed [31:0] phase
|
||||
);
|
||||
|
||||
reg [`FIXED_WIDTH:1] phase_in_cycles;
|
||||
reg [`FIXED_WIDTH:1] phase_fixed;
|
||||
reg [1:0] mx;
|
||||
reg [5:0] delay_time;
|
||||
reg [2:0] phase_mux;
|
||||
|
||||
reg [`FIXED_WIDTH:1] temp;
|
||||
|
||||
begin
|
||||
`ifdef DEBUG
|
||||
$display("mmcm_phase-divide:%d,phase:%d", divide, phase);
|
||||
`endif
|
||||
|
||||
if ((phase < -360000) || (phase > 360000)) begin
|
||||
`ifndef SYNTHESIS
|
||||
$display("ERROR: phase of $phase is not between -360000 and 360000");
|
||||
`endif
|
||||
$finish;
|
||||
end
|
||||
|
||||
// If phase is less than 0, convert it to a positive phase shift
|
||||
// Convert to (FIXED_WIDTH-FRAC_PRECISION).FRAC_PRECISION fixed point
|
||||
if(phase < 0) begin
|
||||
phase_fixed = ( (phase + 360000) << `FRAC_PRECISION ) / 1000;
|
||||
end else begin
|
||||
phase_fixed = ( phase << `FRAC_PRECISION ) / 1000;
|
||||
end
|
||||
|
||||
// Put phase in terms of decimal number of vco clock cycles
|
||||
phase_in_cycles = ( phase_fixed * divide ) / 360;
|
||||
|
||||
`ifdef DEBUG
|
||||
$display("phase_in_cycles: %h", phase_in_cycles);
|
||||
`endif
|
||||
|
||||
temp = round_frac(phase_in_cycles, 3);
|
||||
|
||||
// set mx to 2'b00 that the phase mux from the VCO is enabled
|
||||
mx = 2'b00;
|
||||
phase_mux = temp[`FRAC_PRECISION:`FRAC_PRECISION-2];
|
||||
delay_time = temp[`FRAC_PRECISION+6:`FRAC_PRECISION+1];
|
||||
|
||||
`ifdef DEBUG
|
||||
$display("temp: %h", temp);
|
||||
`endif
|
||||
|
||||
// Setup the return value
|
||||
mmcm_pll_phase={mx, phase_mux, delay_time};
|
||||
end
|
||||
endfunction
|
||||
|
||||
// This function takes the divide value and outputs the necessary lock values
|
||||
function [39:0] mmcm_pll_lock_lookup
|
||||
(
|
||||
input [7:0] divide // Max M divide is 128 in UltrascalePlus
|
||||
);
|
||||
|
||||
reg [5119:0] lookup;
|
||||
|
||||
begin
|
||||
lookup = {
|
||||
// This table is composed of:
|
||||
// LockRefDly_LockFBDly_LockCnt_LockSatHigh_UnlockCnt
|
||||
40'b00110_00110_1111101000_1111101001_0000000001, // M=1 (not allowed)
|
||||
40'b00110_00110_1111101000_1111101001_0000000001, // M=2
|
||||
40'b01000_01000_1111101000_1111101001_0000000001, // M=3
|
||||
40'b01011_01011_1111101000_1111101001_0000000001, // M=4
|
||||
40'b01110_01110_1111101000_1111101001_0000000001, // M=5
|
||||
40'b10001_10001_1111101000_1111101001_0000000001, // M=6
|
||||
40'b10011_10011_1111101000_1111101001_0000000001, // M=7
|
||||
40'b10110_10110_1111101000_1111101001_0000000001,
|
||||
40'b11001_11001_1111101000_1111101001_0000000001,
|
||||
40'b11100_11100_1111101000_1111101001_0000000001,
|
||||
40'b11111_11111_1110000100_1111101001_0000000001,
|
||||
40'b11111_11111_1100111001_1111101001_0000000001,
|
||||
40'b11111_11111_1011101110_1111101001_0000000001,
|
||||
40'b11111_11111_1010111100_1111101001_0000000001,
|
||||
40'b11111_11111_1010001010_1111101001_0000000001,
|
||||
40'b11111_11111_1001110001_1111101001_0000000001,
|
||||
40'b11111_11111_1000111111_1111101001_0000000001,
|
||||
40'b11111_11111_1000100110_1111101001_0000000001,
|
||||
40'b11111_11111_1000001101_1111101001_0000000001,
|
||||
40'b11111_11111_0111110100_1111101001_0000000001,
|
||||
40'b11111_11111_0111011011_1111101001_0000000001,
|
||||
40'b11111_11111_0111000010_1111101001_0000000001,
|
||||
40'b11111_11111_0110101001_1111101001_0000000001,
|
||||
40'b11111_11111_0110010000_1111101001_0000000001,
|
||||
40'b11111_11111_0110010000_1111101001_0000000001,
|
||||
40'b11111_11111_0101110111_1111101001_0000000001,
|
||||
40'b11111_11111_0101011110_1111101001_0000000001,
|
||||
40'b11111_11111_0101011110_1111101001_0000000001,
|
||||
40'b11111_11111_0101000101_1111101001_0000000001,
|
||||
40'b11111_11111_0101000101_1111101001_0000000001,
|
||||
40'b11111_11111_0100101100_1111101001_0000000001,
|
||||
40'b11111_11111_0100101100_1111101001_0000000001,
|
||||
40'b11111_11111_0100101100_1111101001_0000000001,
|
||||
40'b11111_11111_0100010011_1111101001_0000000001,
|
||||
40'b11111_11111_0100010011_1111101001_0000000001,
|
||||
40'b11111_11111_0100010011_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001,
|
||||
40'b11111_11111_0011111010_1111101001_0000000001, // M=127
|
||||
40'b11111_11111_0011111010_1111101001_0000000001 // M=128
|
||||
};
|
||||
|
||||
// Set lookup_entry with the explicit bits from lookup with a part select
|
||||
mmcm_pll_lock_lookup = lookup[ ((128-divide)*40) +: 40];
|
||||
`ifdef DEBUG
|
||||
$display("lock_lookup: %b", mmcm_pll_lock_lookup);
|
||||
`endif
|
||||
end
|
||||
endfunction
|
||||
|
||||
// This function takes the divide value and the bandwidth setting of the MMCM
|
||||
// and outputs the digital filter settings necessary.
|
||||
function [9:0] mmcm_pll_filter_lookup
|
||||
(
|
||||
input [7:0] divide, // input [7:0] divide // Max M divide is 128 in UltraScalePlus
|
||||
input [8*9:0] BANDWIDTH
|
||||
);
|
||||
|
||||
reg [1279:0] lookup_low;
|
||||
reg [1279:0] lookup_high;
|
||||
|
||||
reg [9:0] lookup_entry;
|
||||
|
||||
begin
|
||||
lookup_low = {
|
||||
// CP_RES_LFHF
|
||||
10'b0011_1111_11, // M=1 - not legal
|
||||
10'b0011_1111_11, // M=2
|
||||
10'b0011_1101_11, // M=3
|
||||
10'b0011_0101_11, // M=4
|
||||
10'b0011_1001_11, // M=5
|
||||
10'b0011_1110_11, // M=6
|
||||
10'b0011_1110_11, // M=7
|
||||
10'b0011_0001_11,
|
||||
10'b0011_0110_11,
|
||||
10'b0011_0110_11,
|
||||
10'b0011_0110_11,
|
||||
10'b0011_1010_11,
|
||||
10'b0011_1010_11,
|
||||
10'b0011_1010_11,
|
||||
10'b0100_0110_11,
|
||||
10'b0011_1100_11,
|
||||
10'b1110_0110_11,
|
||||
10'b1111_0110_11,
|
||||
10'b1110_1010_11,
|
||||
10'b1110_1010_11,
|
||||
10'b1111_1010_11,
|
||||
10'b1111_1010_11,
|
||||
10'b1111_1010_11,
|
||||
10'b1111_1010_11,
|
||||
10'b1111_1010_11,
|
||||
10'b1101_1100_11,
|
||||
10'b1101_1100_11,
|
||||
10'b1101_1100_11,
|
||||
10'b1110_1100_11,
|
||||
10'b1110_1100_11,
|
||||
10'b1110_1100_11,
|
||||
10'b1111_1100_11,
|
||||
10'b1111_1100_11,
|
||||
10'b1111_1100_11,
|
||||
10'b1111_1100_11,
|
||||
10'b1111_1100_11,
|
||||
10'b1111_1100_11,
|
||||
10'b1110_0010_11,
|
||||
10'b1110_0010_11,
|
||||
10'b1110_0010_11,
|
||||
10'b1110_0010_11,
|
||||
10'b1111_0010_11,
|
||||
10'b1111_0010_11,
|
||||
10'b1111_0010_11,
|
||||
10'b1111_0010_11,
|
||||
10'b1111_0010_11,
|
||||
10'b1111_0010_11,
|
||||
10'b1111_0010_11,
|
||||
10'b1111_0010_11,
|
||||
10'b1111_0010_11,
|
||||
10'b1111_0010_11,
|
||||
10'b1111_0010_11,
|
||||
10'b1111_0010_11,
|
||||
10'b1111_0010_11,
|
||||
10'b1111_0010_11,
|
||||
10'b1111_0010_11,
|
||||
10'b1111_0010_11,
|
||||
10'b1111_0010_11,
|
||||
10'b1111_0010_11,
|
||||
10'b1111_0010_11,
|
||||
10'b1111_0010_11,
|
||||
10'b1111_0010_11,
|
||||
10'b1100_0100_11,
|
||||
10'b1100_0100_11,
|
||||
10'b1100_0100_11,
|
||||
10'b1100_0100_11,
|
||||
10'b1100_0100_11,
|
||||
10'b1100_0100_11,
|
||||
10'b1100_0100_11,
|
||||
10'b1100_0100_11,
|
||||
10'b1101_0100_11,
|
||||
10'b1101_0100_11,
|
||||
10'b1101_0100_11,
|
||||
10'b1101_0100_11,
|
||||
10'b1101_0100_11,
|
||||
10'b1101_0100_11,
|
||||
10'b1101_0100_11,
|
||||
10'b1110_0100_11,
|
||||
10'b1110_0100_11,
|
||||
10'b1110_0100_11,
|
||||
10'b1110_0100_11,
|
||||
10'b1110_0100_11,
|
||||
10'b1110_0100_11,
|
||||
10'b1110_0100_11,
|
||||
10'b1110_0100_11,
|
||||
10'b1111_0100_11,
|
||||
10'b1111_0100_11,
|
||||
10'b1111_0100_11,
|
||||
10'b1111_0100_11,
|
||||
10'b1111_0100_11,
|
||||
10'b1111_0100_11,
|
||||
10'b1111_0100_11,
|
||||
10'b1111_0100_11,
|
||||
10'b1111_0100_11,
|
||||
10'b1111_0100_11,
|
||||
10'b1111_0100_11,
|
||||
10'b1111_0100_11,
|
||||
10'b1111_0100_11,
|
||||
10'b1111_0100_11,
|
||||
10'b1111_0100_11,
|
||||
10'b1111_0100_11,
|
||||
10'b1111_0100_11,
|
||||
10'b1111_0100_11,
|
||||
10'b1111_0100_11,
|
||||
10'b1111_0100_11,
|
||||
10'b1111_0100_11,
|
||||
10'b1111_0100_11,
|
||||
10'b1111_0100_11,
|
||||
10'b1111_0100_11,
|
||||
10'b1111_0100_11,
|
||||
10'b1111_0100_11,
|
||||
10'b1111_0100_11,
|
||||
10'b1111_0100_11,
|
||||
10'b1111_0100_11,
|
||||
10'b1111_0100_11,
|
||||
10'b1111_0100_11,
|
||||
10'b1111_0100_11,
|
||||
10'b1111_0100_11,
|
||||
10'b1111_0100_11,
|
||||
10'b1101_1000_11,
|
||||
10'b1101_1000_11,
|
||||
10'b1101_1000_11,
|
||||
10'b1101_1000_11,
|
||||
10'b1101_1000_11,
|
||||
10'b1101_1000_11,
|
||||
10'b1101_1000_11,
|
||||
10'b1101_1000_11, // M=127
|
||||
10'b1101_1000_11 // M=128
|
||||
};
|
||||
|
||||
lookup_high = {
|
||||
// CP_RES_LFHF
|
||||
10'b0111_1111_11, // M=1 - not legal
|
||||
10'b0111_1111_11, // M=2
|
||||
10'b1110_1111_11, // M=3
|
||||
10'b1111_1111_11, // M=4
|
||||
10'b1111_1011_11, // M=5
|
||||
10'b1111_1101_11, // M=6
|
||||
10'b1111_0011_11, // M=7
|
||||
10'b1110_0101_11,
|
||||
10'b1111_1001_11,
|
||||
10'b1111_1001_11,
|
||||
10'b1110_1110_11,
|
||||
10'b1111_1110_11,
|
||||
10'b1111_0001_11,
|
||||
10'b1111_0001_11,
|
||||
10'b1111_0001_11,
|
||||
10'b1110_0110_11,
|
||||
10'b1110_0110_11,
|
||||
10'b1111_0110_11,
|
||||
10'b1110_1010_11,
|
||||
10'b1110_1010_11,
|
||||
10'b1111_1010_11,
|
||||
10'b1111_1010_11,
|
||||
10'b1111_1010_11,
|
||||
10'b1111_1010_11,
|
||||
10'b1111_1010_11,
|
||||
10'b1101_1100_11,
|
||||
10'b1101_1100_11,
|
||||
10'b1101_1100_11,
|
||||
10'b1110_1100_11,
|
||||
10'b1110_1100_11,
|
||||
10'b1110_1100_11,
|
||||
10'b1111_1100_11,
|
||||
10'b1111_1100_11,
|
||||
10'b1111_1100_11,
|
||||
10'b1111_1100_11,
|
||||
10'b1111_1100_11,
|
||||
10'b1111_1100_11,
|
||||
10'b1110_0010_11,
|
||||
10'b1110_0010_11,
|
||||
10'b1110_0010_11,
|
||||
10'b1110_0010_11,
|
||||
10'b1111_0010_11,
|
||||
10'b1111_0010_11,
|
||||
10'b1111_0010_11,
|
||||
10'b1111_0010_11,
|
||||
10'b1111_0010_11,
|
||||
10'b1111_0010_11,
|
||||
10'b1111_0010_11,
|
||||
10'b1111_0010_11,
|
||||
10'b1111_0010_11,
|
||||
10'b1111_0010_11,
|
||||
10'b1111_0010_11,
|
||||
10'b1111_0010_11,
|
||||
10'b1111_0010_11,
|
||||
10'b1111_0010_11,
|
||||
10'b1111_0010_11,
|
||||
10'b1111_0010_11,
|
||||
10'b1111_0010_11,
|
||||
10'b1111_0010_11,
|
||||
10'b1111_0010_11,
|
||||
10'b1111_0010_11,
|
||||
10'b1111_0010_11,
|
||||
10'b1100_0100_11,
|
||||
10'b1100_0100_11,
|
||||
10'b1100_0100_11,
|
||||
10'b1100_0100_11,
|
||||
10'b1100_0100_11,
|
||||
10'b1100_0100_11,
|
||||
10'b1100_0100_11,
|
||||
10'b1100_0100_11,
|
||||
10'b1101_0100_11,
|
||||
10'b1101_0100_11,
|
||||
10'b1101_0100_11,
|
||||
10'b1101_0100_11,
|
||||
10'b1101_0100_11,
|
||||
10'b1101_0100_11,
|
||||
10'b1101_0100_11,
|
||||
10'b1110_0100_11,
|
||||
10'b1110_0100_11,
|
||||
10'b1110_0100_11,
|
||||
10'b1110_0100_11,
|
||||
10'b1110_0100_11,
|
||||
10'b1110_0100_11,
|
||||
10'b1110_0100_11,
|
||||
10'b1110_0100_11,
|
||||
10'b1111_0100_11,
|
||||
10'b1111_0100_11,
|
||||
10'b1111_0100_11,
|
||||
10'b1111_0100_11,
|
||||
10'b1111_0100_11,
|
||||
10'b1111_0100_11,
|
||||
10'b1111_0100_11,
|
||||
10'b1111_0100_11,
|
||||
10'b1111_0100_11,
|
||||
10'b1111_0100_11,
|
||||
10'b1111_0100_11,
|
||||
10'b1111_0100_11,
|
||||
10'b1111_0100_11,
|
||||
10'b1111_0100_11,
|
||||
10'b1111_0100_11,
|
||||
10'b1111_0100_11,
|
||||
10'b1111_0100_11,
|
||||
10'b1111_0100_11,
|
||||
10'b1111_0100_11,
|
||||
10'b1111_0100_11,
|
||||
10'b1111_0100_11,
|
||||
10'b1111_0100_11,
|
||||
10'b1111_0100_11,
|
||||
10'b1111_0100_11,
|
||||
10'b1111_0100_11,
|
||||
10'b1111_0100_11,
|
||||
10'b1111_0100_11,
|
||||
10'b1111_0100_11,
|
||||
10'b1111_0100_11,
|
||||
10'b1111_0100_11,
|
||||
10'b1111_0100_11,
|
||||
10'b1111_0100_11,
|
||||
10'b1111_0100_11,
|
||||
10'b1111_0100_11,
|
||||
10'b1101_1000_11,
|
||||
10'b1101_1000_11,
|
||||
10'b1101_1000_11,
|
||||
10'b1101_1000_11,
|
||||
10'b1101_1000_11,
|
||||
10'b1101_1000_11,
|
||||
10'b1101_1000_11,
|
||||
10'b1101_1000_11,
|
||||
10'b1101_1000_11 // M=128
|
||||
};
|
||||
|
||||
// Set lookup_entry with the explicit bits from lookup with a part select
|
||||
if(BANDWIDTH == "LOW") begin
|
||||
// Low Bandwidth
|
||||
mmcm_pll_filter_lookup = lookup_low[ ((128-divide)*10) +: 10];
|
||||
end else begin
|
||||
// High or optimized bandwidth
|
||||
mmcm_pll_filter_lookup = lookup_high[ ((128-divide)*10) +: 10];
|
||||
end
|
||||
|
||||
`ifdef DEBUG
|
||||
$display("filter_lookup: %b", mmcm_pll_filter_lookup);
|
||||
`endif
|
||||
end
|
||||
endfunction
|
||||
|
||||
// This function takes in the divide, phase, and duty cycle
|
||||
// setting to calculate the upper and lower counter registers.
|
||||
function [37:0] mmcm_pll_count_calc
|
||||
(
|
||||
input [7:0] divide, // Max divide is 128
|
||||
input signed [31:0] phase,
|
||||
input [31:0] duty_cycle // Multiplied by 100,000
|
||||
);
|
||||
|
||||
reg [13:0] div_calc;
|
||||
reg [16:0] phase_calc;
|
||||
|
||||
begin
|
||||
`ifdef DEBUG
|
||||
$display("mmcm_pll_count_calc- divide:%h, phase:%d, duty_cycle:%d",
|
||||
divide, phase, duty_cycle);
|
||||
`endif
|
||||
|
||||
// w_edge[13], no_count[12], high_time[11:6], low_time[5:0]
|
||||
div_calc = mmcm_pll_divider(divide, duty_cycle);
|
||||
// mx[10:9], pm[8:6], dt[5:0]
|
||||
phase_calc = mmcm_pll_phase(divide, phase);
|
||||
|
||||
// Return value is the upper and lower address of counter
|
||||
// Upper address is:
|
||||
// RESERVED [31:26]
|
||||
// MX [25:24]
|
||||
// EDGE [23]
|
||||
// NOCOUNT [22]
|
||||
// DELAY_TIME [21:16]
|
||||
// Lower Address is:
|
||||
// PHASE_MUX [15:13]
|
||||
// RESERVED [12]
|
||||
// HIGH_TIME [11:6]
|
||||
// LOW_TIME [5:0]
|
||||
|
||||
`ifdef DEBUG
|
||||
$display("div:%d dc:%d phase:%d ht:%d lt:%d ed:%d nc:%d mx:%d dt:%d pm:%d",
|
||||
divide, duty_cycle, phase, div_calc[11:6], div_calc[5:0],
|
||||
div_calc[13], div_calc[12],
|
||||
phase_calc[16:15], phase_calc[5:0], phase_calc[14:12]);
|
||||
`endif
|
||||
|
||||
mmcm_pll_count_calc =
|
||||
{
|
||||
// Upper Address
|
||||
6'h00, phase_calc[10:9], div_calc[13:12], phase_calc[5:0],
|
||||
// Lower Address
|
||||
phase_calc[8:6], 1'b0, div_calc[11:0]
|
||||
};
|
||||
end
|
||||
endfunction
|
||||
|
||||
|
||||
// This function takes in the divide, phase, and duty cycle
|
||||
// setting to calculate the upper and lower counter registers.
|
||||
// for fractional multiply/divide functions.
|
||||
//
|
||||
//
|
||||
function [37:0] mmcm_frac_count_calc
|
||||
(
|
||||
input [7:0] divide, // Max divide is 128
|
||||
input signed [31:0] phase,
|
||||
input [31:0] duty_cycle, // Multiplied by 100,000. Not programmable in fractional
|
||||
input [9:0] frac // Multiplied by 1000
|
||||
);
|
||||
|
||||
//Required for fractional divide calculations
|
||||
reg [7:0] lt_frac;
|
||||
reg [7:0] ht_frac;
|
||||
|
||||
reg /*[7:0]*/ wf_fall_frac;
|
||||
reg /*[7:0]*/ wf_rise_frac;
|
||||
|
||||
reg [31:0] a;
|
||||
reg [7:0] pm_rise_frac_filtered ;
|
||||
reg [7:0] pm_fall_frac_filtered ;
|
||||
reg [7:0] clkout0_divide_int;
|
||||
reg [2:0] clkout0_divide_frac;
|
||||
reg [7:0] even_part_high;
|
||||
reg [7:0] even_part_low;
|
||||
|
||||
reg [7:0] odd;
|
||||
reg [7:0] odd_and_frac;
|
||||
|
||||
reg [7:0] pm_fall;
|
||||
reg [7:0] pm_rise;
|
||||
reg [7:0] dt;
|
||||
reg [7:0] dt_int;
|
||||
reg [63:0] dt_calc;
|
||||
|
||||
reg [7:0] pm_rise_frac;
|
||||
reg [7:0] pm_fall_frac;
|
||||
|
||||
reg [31:0] a_per_in_octets;
|
||||
reg [31:0] a_phase_in_cycles;
|
||||
|
||||
parameter precision = 0.125;
|
||||
|
||||
reg [31:0] phase_fixed; // changed to 31:0 from 32:1 jt 5/2/11
|
||||
reg [31: 0] phase_pos;
|
||||
reg [31: 0] phase_vco;
|
||||
reg [31:0] temp;// changed to 31:0 from 32:1 jt 5/2/11
|
||||
reg [13:0] div_calc;
|
||||
reg [16:0] phase_calc;
|
||||
|
||||
begin
|
||||
`ifdef DEBUG
|
||||
$display("mmcm_frac_count_calc- divide:%h, phase:%d, duty_cycle:%d",
|
||||
divide, phase, duty_cycle);
|
||||
`endif
|
||||
|
||||
//convert phase to fixed
|
||||
if ((phase < -360000) || (phase > 360000)) begin
|
||||
`ifndef SYNTHESIS
|
||||
$display("ERROR: phase of $phase is not between -360000 and 360000");
|
||||
`endif
|
||||
$finish;
|
||||
end
|
||||
|
||||
|
||||
// Return value is
|
||||
// Transfer data
|
||||
// RESERVED [37:36]
|
||||
// FRAC_TIME [35:33]
|
||||
// FRAC_WF_FALL [32]
|
||||
// Upper address is:
|
||||
// RESERVED [31:26]
|
||||
// MX [25:24]
|
||||
// EDGE [23]
|
||||
// NOCOUNT [22]
|
||||
// DELAY_TIME [21:16]
|
||||
// Lower Address is:
|
||||
// PHASE_MUX [15:13]
|
||||
// RESERVED [12]
|
||||
// HIGH_TIME [11:6]
|
||||
// LOW_TIME [5:0]
|
||||
|
||||
|
||||
|
||||
clkout0_divide_frac = frac / 125;
|
||||
clkout0_divide_int = divide;
|
||||
|
||||
even_part_high = clkout0_divide_int >> 1;//$rtoi(clkout0_divide_int / 2);
|
||||
even_part_low = even_part_high;
|
||||
|
||||
odd = clkout0_divide_int - even_part_high - even_part_low;
|
||||
odd_and_frac = (8*odd) + clkout0_divide_frac;
|
||||
|
||||
lt_frac = even_part_high - (odd_and_frac <= 9);//IF(odd_and_frac>9,even_part_high, even_part_high - 1)
|
||||
ht_frac = even_part_low - (odd_and_frac <= 8);//IF(odd_and_frac>8,even_part_low, even_part_low- 1)
|
||||
|
||||
pm_fall = {odd[6:0],2'b00} + {6'h00, clkout0_divide_frac[2:1]}; // using >> instead of clkout0_divide_frac / 2
|
||||
pm_rise = 0; //0
|
||||
|
||||
wf_fall_frac = ((odd_and_frac >=2) && (odd_and_frac <=9)) || (clkout0_divide_int == 2 && clkout0_divide_frac == 1); //IF(odd_and_frac>=2,IF(odd_and_frac <= 9,1,0),0)
|
||||
wf_rise_frac = (odd_and_frac >=1) && (odd_and_frac <=8); //IF(odd_and_frac>=1,IF(odd_and_frac <= 8,1,0),0)
|
||||
|
||||
|
||||
|
||||
//Calculate phase in fractional cycles
|
||||
a_per_in_octets = (8 * divide) + (frac / 125) ;
|
||||
a_phase_in_cycles = (phase+10) * a_per_in_octets / 360000 ;//Adding 1 due to rounding errors
|
||||
pm_rise_frac = (a_phase_in_cycles[7:0] ==8'h00)?8'h00:a_phase_in_cycles[7:0] - {a_phase_in_cycles[7:3],3'b000};
|
||||
|
||||
dt_calc = ((phase+10) * a_per_in_octets / 8 )/360000 ;//TRUNC(phase* divide / 360); //or_simply (a_per_in_octets / 8)
|
||||
dt = dt_calc[7:0];
|
||||
|
||||
pm_rise_frac_filtered = (pm_rise_frac >=8) ? (pm_rise_frac ) - 8: pm_rise_frac ; //((phase_fixed * (divide + frac / 1000)) / 360) - {pm_rise_frac[7:3],3'b000};//$rtoi(clkout0_phase * clkout0_divide / 45);//a;
|
||||
|
||||
dt_int = dt + (& pm_rise_frac[7:4]); //IF(pm_rise_overwriting>7,dt+1,dt)
|
||||
pm_fall_frac = pm_fall + pm_rise_frac;
|
||||
pm_fall_frac_filtered = pm_fall + pm_rise_frac - {pm_fall_frac[7:3], 3'b000};
|
||||
|
||||
div_calc = mmcm_pll_divider(divide, duty_cycle); //Use to determine edge[7], no count[6]
|
||||
phase_calc = mmcm_pll_phase(divide, phase);// returns{mx[1:0], phase_mux[2:0], delay_time[5:0]}
|
||||
|
||||
mmcm_frac_count_calc[37:0] =
|
||||
{ 2'b00, pm_fall_frac_filtered[2:0], wf_fall_frac,
|
||||
1'b0, clkout0_divide_frac[2:0], 1'b1, wf_rise_frac, phase_calc[10:9], 2'b00, dt[5:0],
|
||||
pm_rise_frac_filtered[2], pm_rise_frac_filtered[1], pm_rise_frac_filtered[0], 1'b0, ht_frac[5:0], lt_frac[5:0]
|
||||
} ;
|
||||
|
||||
`ifdef DEBUG
|
||||
$display("-%d.%d p%d>> :DADDR_9_15 frac30to28.frac_en.wf_r_frac.dt:%b%d%d_%b:DADDR_7_13 pm_f_frac_filtered_29to27.wf_f_frac_26:%b%d:DADDR_8_14.pm_r_frac_filt_15to13.ht_frac.lt_frac:%b%b%b:", divide, frac, phase, clkout0_divide_frac, 1, wf_rise_frac, dt, pm_fall_frac_filtered, wf_fall_frac, pm_rise_frac_filtered, ht_frac, lt_frac);
|
||||
`endif
|
||||
|
||||
end
|
||||
endfunction
|
||||
|
||||
+536
@@ -0,0 +1,536 @@
|
||||
///////////////////////////////////////////////////////////////////////////////
|
||||
//
|
||||
// Company: Xilinx
|
||||
// Engineer: Jim Tatsukawa, Ralf Krueger, updated for Ultrascale+
|
||||
// Date: 6/15/2015
|
||||
// Design Name: PLLE4 DRP
|
||||
// Module Name: plle4_drp_func.h
|
||||
// Version: 2.0
|
||||
// Target Devices: UltraScale+ Architecture
|
||||
// Tool versions: 2017.1
|
||||
// Description: This header provides the functions necessary to
|
||||
// calculate the DRP register values for the V6 PLL.
|
||||
//
|
||||
// Revision Notes: 8/11 - PLLE3 updated for PLLE3 file 4564419
|
||||
// Revision Notes: 6/15 - pll_filter_lookup fixed for max M of 19
|
||||
// M_Rise bits have been removed for PLLE3
|
||||
// Revision Notes: 2/28/17 - pll_filter_lookup and CPRES updated for
|
||||
// Ultrascale+ and for max M of 21
|
||||
//
|
||||
// Disclaimer: XILINX IS PROVIDING THIS DESIGN, CODE, OR
|
||||
// INFORMATION "AS IS" SOLELY FOR USE IN DEVELOPING
|
||||
// PROGRAMS AND SOLUTIONS FOR XILINX DEVICES. BY
|
||||
// PROVIDING THIS DESIGN, CODE, OR INFORMATION AS
|
||||
// ONE POSSIBLE IMPLEMENTATION OF THIS FEATURE,
|
||||
// APPLICATION OR STANDARD, XILINX IS MAKING NO
|
||||
// REPRESENTATION THAT THIS IMPLEMENTATION IS FREE
|
||||
// FROM ANY CLAIMS OF INFRINGEMENT, AND YOU ARE
|
||||
// RESPONSIBLE FOR OBTAINING ANY RIGHTS YOU MAY
|
||||
// REQUIRE FOR YOUR IMPLEMENTATION. XILINX
|
||||
// EXPRESSLY DISCLAIMS ANY WARRANTY WHATSOEVER WITH
|
||||
// RESPECT TO THE ADEQUACY OF THE IMPLEMENTATION,
|
||||
// INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OR
|
||||
// REPRESENTATIONS THAT THIS IMPLEMENTATION IS FREE
|
||||
// FROM CLAIMS OF INFRINGEMENT, IMPLIED WARRANTIES
|
||||
// OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
||||
// PURPOSE.
|
||||
//
|
||||
// (c) Copyright 2009-2017 Xilinx, Inc.
|
||||
// All rights reserved.
|
||||
//
|
||||
///////////////////////////////////////////////////////////////////////////////
|
||||
|
||||
// These are user functions that should not be modified. Changes to the defines
|
||||
// or code within the functions may alter the accuracy of the calculations.
|
||||
|
||||
// Define debug to provide extra messages durring elaboration
|
||||
//`define DEBUG 1
|
||||
|
||||
// FRAC_PRECISION describes the width of the fractional portion of the fixed
|
||||
// point numbers. These should not be modified, they are for development
|
||||
// only
|
||||
`define FRAC_PRECISION 10
|
||||
// FIXED_WIDTH describes the total size for fixed point calculations(int+frac).
|
||||
// Warning: L.50 and below will not calculate properly with FIXED_WIDTHs
|
||||
// greater than 32
|
||||
`define FIXED_WIDTH 32
|
||||
|
||||
// This function takes a fixed point number and rounds it to the nearest
|
||||
// fractional precision bit.
|
||||
function [`FIXED_WIDTH:1] round_frac
|
||||
(
|
||||
// Input is (FIXED_WIDTH-FRAC_PRECISION).FRAC_PRECISION fixed point number
|
||||
input [`FIXED_WIDTH:1] decimal,
|
||||
|
||||
// This describes the precision of the fraction, for example a value
|
||||
// of 1 would modify the fractional so that instead of being a .16
|
||||
// fractional, it would be a .1 (rounded to the nearest 0.5 in turn)
|
||||
input [`FIXED_WIDTH:1] precision
|
||||
);
|
||||
|
||||
begin
|
||||
|
||||
`ifdef DEBUG
|
||||
$display("round_frac - decimal: %h, precision: %h", decimal, precision);
|
||||
`endif
|
||||
// If the fractional precision bit is high then round up
|
||||
if( decimal[(`FRAC_PRECISION-precision)] == 1'b1) begin
|
||||
round_frac = decimal + (1'b1 << (`FRAC_PRECISION-precision));
|
||||
end else begin
|
||||
round_frac = decimal;
|
||||
end
|
||||
`ifdef DEBUG
|
||||
$display("round_frac: %h", round_frac);
|
||||
`endif
|
||||
end
|
||||
endfunction
|
||||
|
||||
// This function calculates high_time, low_time, w_edge, and no_count
|
||||
// of a non-fractional counter based on the divide and duty cycle
|
||||
//
|
||||
// NOTE: high_time and low_time are returned as integers between 0 and 63
|
||||
// inclusive. 64 should equal 6'b000000 (in other words it is okay to
|
||||
// ignore the overflow)
|
||||
function [13:0] mmcm_pll_divider
|
||||
(
|
||||
input [7:0] divide, // Max divide is 128
|
||||
input [31:0] duty_cycle // Duty cycle is multiplied by 100,000
|
||||
);
|
||||
|
||||
reg [`FIXED_WIDTH:1] duty_cycle_fix;
|
||||
|
||||
// High/Low time is initially calculated with a wider integer to prevent a
|
||||
// calculation error when it overflows to 64.
|
||||
reg [6:0] high_time;
|
||||
reg [6:0] low_time;
|
||||
reg w_edge;
|
||||
reg no_count;
|
||||
|
||||
reg [`FIXED_WIDTH:1] temp;
|
||||
|
||||
begin
|
||||
// Duty Cycle must be between 0 and 1,000
|
||||
if(duty_cycle <=0 || duty_cycle >= 100000) begin
|
||||
`ifndef SYNTHESIS
|
||||
$display("ERROR: duty_cycle: %d is invalid", duty_cycle);
|
||||
`endif
|
||||
$finish;
|
||||
end
|
||||
|
||||
// Convert to FIXED_WIDTH-FRAC_PRECISION.FRAC_PRECISION fixed point
|
||||
duty_cycle_fix = (duty_cycle << `FRAC_PRECISION) / 100_000;
|
||||
|
||||
`ifdef DEBUG
|
||||
$display("duty_cycle_fix: %h", duty_cycle_fix);
|
||||
`endif
|
||||
|
||||
// If the divide is 1 nothing needs to be set except the no_count bit.
|
||||
// Other values are dummies
|
||||
if(divide == 7'h01) begin
|
||||
high_time = 7'h01;
|
||||
w_edge = 1'b0;
|
||||
low_time = 7'h01;
|
||||
no_count = 1'b1;
|
||||
end else begin
|
||||
temp = round_frac(duty_cycle_fix*divide, 1);
|
||||
|
||||
// comes from above round_frac
|
||||
high_time = temp[`FRAC_PRECISION+7:`FRAC_PRECISION+1];
|
||||
// If the duty cycle * divide rounded is .5 or greater then this bit
|
||||
// is set.
|
||||
w_edge = temp[`FRAC_PRECISION]; // comes from round_frac
|
||||
|
||||
// If the high time comes out to 0, it needs to be set to at least 1
|
||||
// and w_edge set to 0
|
||||
if(high_time == 7'h00) begin
|
||||
high_time = 7'h01;
|
||||
w_edge = 1'b0;
|
||||
end
|
||||
|
||||
if(high_time == divide) begin
|
||||
high_time = divide - 1;
|
||||
w_edge = 1'b1;
|
||||
end
|
||||
|
||||
// Calculate low_time based on the divide setting and set no_count to
|
||||
// 0 as it is only used when divide is 1.
|
||||
low_time = divide - high_time;
|
||||
no_count = 1'b0;
|
||||
end
|
||||
|
||||
// Set the return value.
|
||||
mmcm_pll_divider = {w_edge,no_count,high_time[5:0],low_time[5:0]};
|
||||
end
|
||||
endfunction
|
||||
|
||||
// This function calculates mx, delay_time, and phase_mux
|
||||
// of a non-fractional counter based on the divide and phase
|
||||
//
|
||||
// NOTE: The only valid value for the MX bits is 2'b00 to ensure the coarse mux
|
||||
// is used.
|
||||
function [10:0] mmcm_pll_phase
|
||||
(
|
||||
// divide must be an integer (use fractional if not)
|
||||
// assumed that divide already checked to be valid
|
||||
input [7:0] divide, // Max divide is 128
|
||||
|
||||
// Phase is given in degrees (-360,000 to 360,000)
|
||||
input signed [31:0] phase
|
||||
);
|
||||
|
||||
reg [`FIXED_WIDTH:1] phase_in_cycles;
|
||||
reg [`FIXED_WIDTH:1] phase_fixed;
|
||||
reg [1:0] mx;
|
||||
reg [5:0] delay_time;
|
||||
reg [2:0] phase_mux;
|
||||
|
||||
reg [`FIXED_WIDTH:1] temp;
|
||||
|
||||
begin
|
||||
`ifdef DEBUG
|
||||
$display("pll_phase-divide:%d,phase:%d",
|
||||
divide, phase);
|
||||
`endif
|
||||
|
||||
if ((phase < -360000) || (phase > 360000)) begin
|
||||
`ifndef SYNTHESIS
|
||||
$display("ERROR: phase of $phase is not between -360000 and 360000");
|
||||
`endif
|
||||
$finish;
|
||||
end
|
||||
|
||||
// If phase is less than 0, convert it to a positive phase shift
|
||||
// Convert to (FIXED_WIDTH-FRAC_PRECISION).FRAC_PRECISION fixed point
|
||||
if(phase < 0) begin
|
||||
phase_fixed = ( (phase + 360000) << `FRAC_PRECISION ) / 1000;
|
||||
end else begin
|
||||
phase_fixed = ( phase << `FRAC_PRECISION ) / 1000;
|
||||
end
|
||||
|
||||
// Put phase in terms of decimal number of vco clock cycles
|
||||
phase_in_cycles = ( phase_fixed * divide ) / 360;
|
||||
|
||||
`ifdef DEBUG
|
||||
$display("phase_in_cycles: %h", phase_in_cycles);
|
||||
`endif
|
||||
|
||||
|
||||
temp = round_frac(phase_in_cycles, 3);
|
||||
|
||||
// set mx to 2'b00 that the phase mux from the VCO is enabled
|
||||
mx = 2'b00;
|
||||
phase_mux = temp[`FRAC_PRECISION:`FRAC_PRECISION-2];
|
||||
delay_time = temp[`FRAC_PRECISION+6:`FRAC_PRECISION+1];
|
||||
|
||||
`ifdef DEBUG
|
||||
$display("temp: %h", temp);
|
||||
`endif
|
||||
|
||||
// Setup the return value
|
||||
mmcm_pll_phase={mx, phase_mux, delay_time};
|
||||
end
|
||||
endfunction
|
||||
|
||||
// This function takes the divide value and outputs the necessary lock values
|
||||
function [39:0] mmcm_pll_lock_lookup
|
||||
(
|
||||
input [6:0] divide // Max divide is 21
|
||||
);
|
||||
|
||||
reg [839:0] lookup;
|
||||
|
||||
begin
|
||||
lookup = {
|
||||
// This table is composed of:
|
||||
// LockRefDly_LockFBDly_LockCnt_LockSatHigh_UnlockCnt
|
||||
40'b00110_00110_1111101000_1111101001_0000000001, //1 illegal in Ultrascale+
|
||||
40'b00110_00110_1111101000_1111101001_0000000001, //2
|
||||
40'b01000_01000_1111101000_1111101001_0000000001, //3
|
||||
40'b01011_01011_1111101000_1111101001_0000000001, //4
|
||||
40'b01110_01110_1111101000_1111101001_0000000001, //5
|
||||
40'b10001_10001_1111101000_1111101001_0000000001, //6
|
||||
40'b10011_10011_1111101000_1111101001_0000000001, //7
|
||||
40'b10110_10110_1111101000_1111101001_0000000001, //8
|
||||
40'b11001_11001_1111101000_1111101001_0000000001, //9
|
||||
40'b11100_11100_1111101000_1111101001_0000000001, //10
|
||||
40'b11111_11111_1110000100_1111101001_0000000001, //11
|
||||
40'b11111_11111_1100111001_1111101001_0000000001, //12
|
||||
40'b11111_11111_1011101110_1111101001_0000000001, //13
|
||||
40'b11111_11111_1010111100_1111101001_0000000001, //14
|
||||
40'b11111_11111_1010001010_1111101001_0000000001, //15
|
||||
40'b11111_11111_1001110001_1111101001_0000000001, //16
|
||||
40'b11111_11111_1000111111_1111101001_0000000001, //17
|
||||
40'b11111_11111_1000100110_1111101001_0000000001, //18
|
||||
40'b11111_11111_1000001101_1111101001_0000000001, //19
|
||||
40'b11111_11111_0111110100_1111101001_0000000001, //20
|
||||
40'b11111_11111_0111011011_1111101001_0000000001 //21
|
||||
};
|
||||
|
||||
// Set lookup_entry with the explicit bits from lookup with a part select
|
||||
mmcm_pll_lock_lookup = lookup[ ((21-divide)*40) +: 40];
|
||||
`ifdef DEBUG
|
||||
$display("lock_lookup: %b", pll_lock_lookup);
|
||||
`endif
|
||||
end
|
||||
endfunction
|
||||
|
||||
// This function takes the divide value and the bandwidth setting of the PLL
|
||||
// and outputs the digital filter settings necessary. Removing bandwidth setting for PLLE3.
|
||||
function [9:0] mmcm_pll_filter_lookup
|
||||
(
|
||||
input [6:0] divide // Max divide is 21
|
||||
);
|
||||
|
||||
reg [209:0] lookup;
|
||||
reg [9:0] lookup_entry;
|
||||
|
||||
begin
|
||||
|
||||
lookup = {
|
||||
// CP_RES_LFHF
|
||||
10'b0011_0111_11, //1 not legal in Ultrascale+
|
||||
10'b0011_0111_11, //2
|
||||
10'b0011_0011_11, //3
|
||||
10'b0011_1001_11, //4
|
||||
10'b0011_0001_11, //5
|
||||
10'b0100_1110_11, //6
|
||||
10'b0011_0110_11, //7
|
||||
10'b0011_1010_11, //8
|
||||
10'b0111_1001_11, //9
|
||||
10'b0111_1001_11, //10
|
||||
10'b0101_0110_11, //11
|
||||
10'b1100_0101_11, //12
|
||||
10'b0101_1010_11, //13
|
||||
10'b0110_0110_11, //14
|
||||
10'b0110_1010_11, //15
|
||||
10'b0111_0110_11, //16
|
||||
10'b1111_0101_11, //17
|
||||
10'b1100_0110_11, //18
|
||||
10'b1110_0001_11, //19
|
||||
10'b1101_0110_11, //20
|
||||
10'b1111_0001_11 //21
|
||||
};
|
||||
|
||||
mmcm_pll_filter_lookup = lookup [ ((21-divide)*10) +: 10];
|
||||
|
||||
`ifdef DEBUG
|
||||
$display("filter_lookup: %b", pll_filter_lookup);
|
||||
`endif
|
||||
end
|
||||
endfunction
|
||||
|
||||
// This function set the CLKOUTPHY divide settings to match
|
||||
// the desired CLKOUTPHY_MODE setting. To create VCO_X2, then
|
||||
// the CLKOUTPHY will be set to 2'b00 since the VCO is internally
|
||||
// doubled and 2'b00 will represent divide by 1. Similarly "VCO"
|
||||
// will need to divide the doubled clock VCO clock frequency by
|
||||
// 2 therefore 2'b01 will match a divide by 2.And VCO_HALF will
|
||||
// need to divide the doubled VCO by 4, therefore 2'b10
|
||||
function [9:0] mmcm_pll_clkoutphy_calc
|
||||
(
|
||||
input [8*9:0] CLKOUTPHY_MODE
|
||||
);
|
||||
|
||||
if(CLKOUTPHY_MODE == "VCO_X2") begin
|
||||
mmcm_pll_clkoutphy_calc= 2'b00;
|
||||
end else if(CLKOUTPHY_MODE == "VCO") begin
|
||||
mmcm_pll_clkoutphy_calc= 2'b01;
|
||||
end else if(CLKOUTPHY_MODE == "CLKIN") begin
|
||||
mmcm_pll_clkoutphy_calc= 2'b11;
|
||||
end else begin // Assume "VCO_HALF"
|
||||
mmcm_pll_clkoutphy_calc= 2'b10;
|
||||
end
|
||||
|
||||
endfunction
|
||||
|
||||
|
||||
// This function takes in the divide, phase, and duty cycle
|
||||
// setting to calculate the upper and lower counter registers.
|
||||
function [37:0] mmcm_pll_count_calc
|
||||
(
|
||||
input [7:0] divide, // Max divide is 128
|
||||
input signed [31:0] phase,
|
||||
input [31:0] duty_cycle // Multiplied by 100,000
|
||||
);
|
||||
|
||||
reg [13:0] div_calc;
|
||||
reg [16:0] phase_calc;
|
||||
|
||||
begin
|
||||
`ifdef DEBUG
|
||||
$display("pll_count_calc- divide:%h, phase:%d, duty_cycle:%d",
|
||||
divide, phase, duty_cycle);
|
||||
`endif
|
||||
|
||||
// w_edge[13], no_count[12], high_time[11:6], low_time[5:0]
|
||||
div_calc = mmcm_pll_divider(divide, duty_cycle);
|
||||
// mx[10:9], pm[8:6], dt[5:0]
|
||||
phase_calc = mmcm_pll_phase(divide, phase);
|
||||
|
||||
// Return value is the upper and lower address of counter
|
||||
// Upper address is:
|
||||
// RESERVED [31:26]
|
||||
// MX [25:24]
|
||||
// EDGE [23]
|
||||
// NOCOUNT [22]
|
||||
// DELAY_TIME [21:16]
|
||||
// Lower Address is:
|
||||
// PHASE_MUX [15:13]
|
||||
// RESERVED [12]
|
||||
// HIGH_TIME [11:6]
|
||||
// LOW_TIME [5:0]
|
||||
|
||||
`ifdef DEBUG
|
||||
$display("div:%d dc:%d phase:%d ht:%d lt:%d ed:%d nc:%d mx:%d dt:%d pm:%d",
|
||||
divide, duty_cycle, phase, div_calc[11:6], div_calc[5:0],
|
||||
div_calc[13], div_calc[12],
|
||||
phase_calc[16:15], phase_calc[5:0], 3'b000); //Removed PM_Rise bits
|
||||
`endif
|
||||
|
||||
mmcm_pll_count_calc =
|
||||
{
|
||||
// Upper Address
|
||||
6'h00, phase_calc[10:9], div_calc[13:12], phase_calc[5:0],
|
||||
// Lower Address
|
||||
phase_calc[8:6], 1'b0, div_calc[11:0]
|
||||
};
|
||||
end
|
||||
endfunction
|
||||
|
||||
|
||||
// This function takes in the divide, phase, and duty cycle
|
||||
// setting to calculate the upper and lower counter registers.
|
||||
// for fractional multiply/divide functions.
|
||||
//
|
||||
//
|
||||
function [37:0] mmcm_pll_frac_count_calc
|
||||
(
|
||||
input [7:0] divide, // Max divide is 128
|
||||
input signed [31:0] phase,
|
||||
input [31:0] duty_cycle, // Multiplied by 1,000
|
||||
input [9:0] frac // Multiplied by 1000
|
||||
);
|
||||
|
||||
//Required for fractional divide calculations
|
||||
reg [7:0] lt_frac;
|
||||
reg [7:0] ht_frac;
|
||||
|
||||
reg /*[7:0]*/ wf_fall_frac;
|
||||
reg /*[7:0]*/ wf_rise_frac;
|
||||
|
||||
reg [31:0] a;
|
||||
reg [7:0] pm_rise_frac_filtered ;
|
||||
reg [7:0] pm_fall_frac_filtered ;
|
||||
reg [7:0] clkout0_divide_int;
|
||||
reg [2:0] clkout0_divide_frac;
|
||||
reg [7:0] even_part_high;
|
||||
reg [7:0] even_part_low;
|
||||
|
||||
reg [7:0] odd;
|
||||
reg [7:0] odd_and_frac;
|
||||
|
||||
reg [7:0] pm_fall;
|
||||
reg [7:0] pm_rise;
|
||||
reg [7:0] dt;
|
||||
reg [7:0] dt_int;
|
||||
reg [63:0] dt_calc;
|
||||
|
||||
reg [7:0] pm_rise_frac;
|
||||
reg [7:0] pm_fall_frac;
|
||||
|
||||
reg [31:0] a_per_in_octets;
|
||||
reg [31:0] a_phase_in_cycles;
|
||||
|
||||
parameter precision = 0.125;
|
||||
|
||||
reg [31:0] phase_fixed; // changed to 31:0 from 32:1 jt 5/2/11
|
||||
reg [31: 0] phase_pos;
|
||||
reg [31: 0] phase_vco;
|
||||
reg [31:0] temp;// changed to 31:0 from 32:1 jt 5/2/11
|
||||
reg [13:0] div_calc;
|
||||
reg [16:0] phase_calc;
|
||||
|
||||
begin
|
||||
`ifdef DEBUG
|
||||
$display("pll_frac_count_calc- divide:%h, phase:%d, duty_cycle:%d",
|
||||
divide, phase, duty_cycle);
|
||||
`endif
|
||||
|
||||
//convert phase to fixed
|
||||
if ((phase < -360000) || (phase > 360000)) begin
|
||||
`ifndef SYNTHESIS
|
||||
$display("ERROR: phase of $phase is not between -360000 and 360000");
|
||||
`endif
|
||||
$finish;
|
||||
end
|
||||
|
||||
|
||||
// Return value is
|
||||
// Transfer data
|
||||
// RESERVED [37:36]
|
||||
// FRAC_TIME [35:33]
|
||||
// FRAC_WF_FALL [32]
|
||||
// Upper address is:
|
||||
// RESERVED [31:26]
|
||||
// MX [25:24]
|
||||
// EDGE [23]
|
||||
// NOCOUNT [22]
|
||||
// DELAY_TIME [21:16]
|
||||
// Lower Address is:
|
||||
// PHASE_MUX [15:13]
|
||||
// RESERVED [12]
|
||||
// HIGH_TIME [11:6]
|
||||
// LOW_TIME [5:0]
|
||||
|
||||
|
||||
|
||||
clkout0_divide_frac = frac / 125;
|
||||
clkout0_divide_int = divide;
|
||||
|
||||
even_part_high = clkout0_divide_int >> 1;//$rtoi(clkout0_divide_int / 2);
|
||||
even_part_low = even_part_high;
|
||||
|
||||
odd = clkout0_divide_int - even_part_high - even_part_low;
|
||||
odd_and_frac = (8*odd) + clkout0_divide_frac;
|
||||
|
||||
lt_frac = even_part_high - (odd_and_frac <= 9);//IF(odd_and_frac>9,even_part_high, even_part_high - 1)
|
||||
ht_frac = even_part_low - (odd_and_frac <= 8);//IF(odd_and_frac>8,even_part_low, even_part_low- 1)
|
||||
|
||||
pm_fall = {odd[6:0],2'b00} + {6'h00, clkout0_divide_frac[2:1]}; // using >> instead of clkout0_divide_frac / 2
|
||||
pm_rise = 0; //0
|
||||
|
||||
wf_fall_frac = (odd_and_frac >=2) && (odd_and_frac <=9);//IF(odd_and_frac>=2,IF(odd_and_frac <= 9,1,0),0)
|
||||
wf_rise_frac = (odd_and_frac >=1) && (odd_and_frac <=8);//IF(odd_and_frac>=1,IF(odd_and_frac <= 8,1,0),0)
|
||||
|
||||
|
||||
|
||||
//Calculate phase in fractional cycles
|
||||
a_per_in_octets = (8 * divide) + (frac / 125) ;
|
||||
a_phase_in_cycles = (phase+10) * a_per_in_octets / 360000 ;//Adding 1 due to rounding errors
|
||||
pm_rise_frac = (a_phase_in_cycles[7:0] ==8'h00)?8'h00:a_phase_in_cycles[7:0] - {a_phase_in_cycles[7:3],3'b000};
|
||||
|
||||
dt_calc = ((phase+10) * a_per_in_octets / 8 )/360000 ;//TRUNC(phase* divide / 360); //or_simply (a_per_in_octets / 8)
|
||||
dt = dt_calc[7:0];
|
||||
|
||||
pm_rise_frac_filtered = (pm_rise_frac >=8) ? (pm_rise_frac ) - 8: pm_rise_frac ; //((phase_fixed * (divide + frac / 1000)) / 360) - {pm_rise_frac[7:3],3'b000};//$rtoi(clkout0_phase * clkout0_divide / 45);//a;
|
||||
|
||||
dt_int = dt + (& pm_rise_frac[7:4]); //IF(pm_rise_overwriting>7,dt+1,dt)
|
||||
pm_fall_frac = pm_fall + pm_rise_frac;
|
||||
pm_fall_frac_filtered = pm_fall + pm_rise_frac - {pm_fall_frac[7:3], 3'b000};
|
||||
|
||||
div_calc = mmcm_pll_divider(divide, duty_cycle); //Use to determine edge[7], no count[6]
|
||||
phase_calc = mmcm_pll_phase(divide, phase);// returns{mx[1:0], phase_mux[2:0], delay_time[5:0]}
|
||||
|
||||
mmcm_pll_frac_count_calc[37:0] =
|
||||
{ 2'b00, pm_fall_frac_filtered[2:0], wf_fall_frac,
|
||||
1'b0, clkout0_divide_frac[2:0], 1'b1, wf_rise_frac, phase_calc[10:9], div_calc[13:12], dt[5:0],
|
||||
3'b000, 1'b0, ht_frac[5:0], lt_frac[5:0] //Removed PM_Rise bits
|
||||
} ;
|
||||
|
||||
`ifdef DEBUG
|
||||
$display("-%d.%d p%d>> :DADDR_9_15 frac30to28.frac_en.wf_r_frac.dt:%b%d%d_%b:DADDR_7_13 pm_f_frac_filtered_29to27.wf_f_frac_26:%b%d:DADDR_8_14.pm_r_frac_filt_15to13.ht_frac.lt_frac:%b%b%b:", divide, frac, phase, clkout0_divide_frac, 1, wf_rise_frac, dt, pm_fall_frac_filtered, wf_fall_frac, 3'b000, ht_frac, lt_frac);
|
||||
`endif
|
||||
|
||||
end
|
||||
endfunction
|
||||
|
||||
@@ -0,0 +1,79 @@
|
||||
// ***************************************************************************
|
||||
// ***************************************************************************
|
||||
// Copyright 2014 - 2017 (c) Analog Devices, Inc. All rights reserved.
|
||||
//
|
||||
// In this HDL repository, there are many different and unique modules, consisting
|
||||
// of various HDL (Verilog or VHDL) components. The individual modules are
|
||||
// developed independently, and may be accompanied by separate and unique license
|
||||
// terms.
|
||||
//
|
||||
// The user should read each of these license terms, and understand the
|
||||
// freedoms and responsibilities that he or she has by using this source/core.
|
||||
//
|
||||
// This core is distributed in the hope that it will be useful, but WITHOUT ANY
|
||||
// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
|
||||
// A PARTICULAR PURPOSE.
|
||||
//
|
||||
// Redistribution and use of source or resulting binaries, with or without modification
|
||||
// of this file, are permitted under one of the following two license terms:
|
||||
//
|
||||
// 1. The GNU General Public License version 2 as published by the
|
||||
// Free Software Foundation, which can be found in the top level directory
|
||||
// of this repository (LICENSE_GPL2), and also online at:
|
||||
// <https://www.gnu.org/licenses/old-licenses/gpl-2.0.html>
|
||||
//
|
||||
// OR
|
||||
//
|
||||
// 2. An ADI specific BSD license, which can be found in the top level directory
|
||||
// of this repository (LICENSE_ADIBSD), and also on-line at:
|
||||
// https://github.com/analogdevicesinc/hdl/blob/master/LICENSE_ADIBSD
|
||||
// This will allow to generate bit files and not release the source code,
|
||||
// as long as it attaches to an ADI device.
|
||||
//
|
||||
// ***************************************************************************
|
||||
// ***************************************************************************
|
||||
|
||||
/*
|
||||
* Helper module for synchronizing bit signals from one clock domain to another.
|
||||
* It uses the standard approach of 2 FF in series.
|
||||
* Note, that while the module allows to synchronize multiple bits at once it is
|
||||
* only able to synchronize multi-bit signals where at max one bit changes per
|
||||
* clock cycle (e.g. a gray counter).
|
||||
*/
|
||||
|
||||
`timescale 1ns/100ps
|
||||
|
||||
module sync_bits #(
|
||||
|
||||
// Number of bits to synchronize
|
||||
parameter NUM_OF_BITS = 1,
|
||||
// Whether input and output clocks are asynchronous, if 0 the synchronizer will
|
||||
// be bypassed and the output signal equals the input signal.
|
||||
parameter ASYNC_CLK = 1)(
|
||||
|
||||
input [NUM_OF_BITS-1:0] in_bits,
|
||||
input out_resetn,
|
||||
input out_clk,
|
||||
output [NUM_OF_BITS-1:0] out_bits);
|
||||
|
||||
generate if (ASYNC_CLK == 1) begin
|
||||
reg [NUM_OF_BITS-1:0] cdc_sync_stage1 = 'h0;
|
||||
reg [NUM_OF_BITS-1:0] cdc_sync_stage2 = 'h0;
|
||||
|
||||
always @(posedge out_clk)
|
||||
begin
|
||||
if (out_resetn == 1'b0) begin
|
||||
cdc_sync_stage1 <= 'b0;
|
||||
cdc_sync_stage2 <= 'b0;
|
||||
end else begin
|
||||
cdc_sync_stage1 <= in_bits;
|
||||
cdc_sync_stage2 <= cdc_sync_stage1;
|
||||
end
|
||||
end
|
||||
|
||||
assign out_bits = cdc_sync_stage2;
|
||||
end else begin
|
||||
assign out_bits = in_bits;
|
||||
end endgenerate
|
||||
|
||||
endmodule
|
||||
@@ -0,0 +1,97 @@
|
||||
// ***************************************************************************
|
||||
// ***************************************************************************
|
||||
// Copyright 2014 - 2017 (c) Analog Devices, Inc. All rights reserved.
|
||||
//
|
||||
// In this HDL repository, there are many different and unique modules, consisting
|
||||
// of various HDL (Verilog or VHDL) components. The individual modules are
|
||||
// developed independently, and may be accompanied by separate and unique license
|
||||
// terms.
|
||||
//
|
||||
// The user should read each of these license terms, and understand the
|
||||
// freedoms and responsibilities that he or she has by using this source/core.
|
||||
//
|
||||
// This core is distributed in the hope that it will be useful, but WITHOUT ANY
|
||||
// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
|
||||
// A PARTICULAR PURPOSE.
|
||||
//
|
||||
// Redistribution and use of source or resulting binaries, with or without modification
|
||||
// of this file, are permitted under one of the following two license terms:
|
||||
//
|
||||
// 1. The GNU General Public License version 2 as published by the
|
||||
// Free Software Foundation, which can be found in the top level directory
|
||||
// of this repository (LICENSE_GPL2), and also online at:
|
||||
// <https://www.gnu.org/licenses/old-licenses/gpl-2.0.html>
|
||||
//
|
||||
// OR
|
||||
//
|
||||
// 2. An ADI specific BSD license, which can be found in the top level directory
|
||||
// of this repository (LICENSE_ADIBSD), and also on-line at:
|
||||
// https://github.com/analogdevicesinc/hdl/blob/master/LICENSE_ADIBSD
|
||||
// This will allow to generate bit files and not release the source code,
|
||||
// as long as it attaches to an ADI device.
|
||||
//
|
||||
// ***************************************************************************
|
||||
// ***************************************************************************
|
||||
|
||||
`timescale 1ns/100ps
|
||||
|
||||
module sync_data #(
|
||||
parameter NUM_OF_BITS = 1,
|
||||
parameter ASYNC_CLK = 1
|
||||
) (
|
||||
input in_clk,
|
||||
input [NUM_OF_BITS-1:0] in_data,
|
||||
input out_clk,
|
||||
output reg [NUM_OF_BITS-1:0] out_data
|
||||
);
|
||||
|
||||
generate
|
||||
if (ASYNC_CLK == 1) begin
|
||||
|
||||
wire out_toggle;
|
||||
wire in_toggle;
|
||||
|
||||
reg out_toggle_d1 = 1'b0;
|
||||
reg in_toggle_d1 = 1'b0;
|
||||
|
||||
reg [NUM_OF_BITS-1:0] cdc_hold;
|
||||
|
||||
sync_bits i_sync_out (
|
||||
.in_bits(in_toggle_d1),
|
||||
.out_clk(out_clk),
|
||||
.out_resetn(1'b1),
|
||||
.out_bits(out_toggle)
|
||||
);
|
||||
|
||||
sync_bits i_sync_in (
|
||||
.in_bits(out_toggle_d1),
|
||||
.out_clk(in_clk),
|
||||
.out_resetn(1'b1),
|
||||
.out_bits(in_toggle)
|
||||
);
|
||||
|
||||
wire in_load = in_toggle == in_toggle_d1;
|
||||
wire out_load = out_toggle ^ out_toggle_d1;
|
||||
|
||||
always @(posedge in_clk) begin
|
||||
if (in_load == 1'b1) begin
|
||||
cdc_hold <= in_data;
|
||||
in_toggle_d1 <= ~in_toggle_d1;
|
||||
end
|
||||
end
|
||||
|
||||
always @(posedge out_clk) begin
|
||||
if (out_load == 1'b1) begin
|
||||
out_data <= cdc_hold;
|
||||
end
|
||||
out_toggle_d1 <= out_toggle;
|
||||
end
|
||||
|
||||
end else begin
|
||||
always @(*) begin
|
||||
out_data <= in_data;
|
||||
end
|
||||
end
|
||||
endgenerate
|
||||
|
||||
endmodule
|
||||
@@ -0,0 +1,120 @@
|
||||
// ***************************************************************************
|
||||
// ***************************************************************************
|
||||
// Copyright 2014 - 2017 (c) Analog Devices, Inc. All rights reserved.
|
||||
//
|
||||
// In this HDL repository, there are many different and unique modules, consisting
|
||||
// of various HDL (Verilog or VHDL) components. The individual modules are
|
||||
// developed independently, and may be accompanied by separate and unique license
|
||||
// terms.
|
||||
//
|
||||
// The user should read each of these license terms, and understand the
|
||||
// freedoms and responsibilities that he or she has by using this source/core.
|
||||
//
|
||||
// This core is distributed in the hope that it will be useful, but WITHOUT ANY
|
||||
// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
|
||||
// A PARTICULAR PURPOSE.
|
||||
//
|
||||
// Redistribution and use of source or resulting binaries, with or without modification
|
||||
// of this file, are permitted under one of the following two license terms:
|
||||
//
|
||||
// 1. The GNU General Public License version 2 as published by the
|
||||
// Free Software Foundation, which can be found in the top level directory
|
||||
// of this repository (LICENSE_GPL2), and also online at:
|
||||
// <https://www.gnu.org/licenses/old-licenses/gpl-2.0.html>
|
||||
//
|
||||
// OR
|
||||
//
|
||||
// 2. An ADI specific BSD license, which can be found in the top level directory
|
||||
// of this repository (LICENSE_ADIBSD), and also on-line at:
|
||||
// https://github.com/analogdevicesinc/hdl/blob/master/LICENSE_ADIBSD
|
||||
// This will allow to generate bit files and not release the source code,
|
||||
// as long as it attaches to an ADI device.
|
||||
//
|
||||
// ***************************************************************************
|
||||
// ***************************************************************************
|
||||
|
||||
`timescale 1ns/100ps
|
||||
|
||||
module sync_event #(
|
||||
parameter NUM_OF_EVENTS = 1,
|
||||
parameter ASYNC_CLK = 1
|
||||
) (
|
||||
input in_clk,
|
||||
input [NUM_OF_EVENTS-1:0] in_event,
|
||||
input out_clk,
|
||||
output reg [NUM_OF_EVENTS-1:0] out_event
|
||||
);
|
||||
|
||||
generate
|
||||
if (ASYNC_CLK == 1) begin
|
||||
|
||||
wire out_toggle;
|
||||
wire in_toggle;
|
||||
|
||||
reg out_toggle_d1 = 1'b0;
|
||||
reg in_toggle_d1 = 1'b0;
|
||||
|
||||
sync_bits i_sync_out (
|
||||
.in_bits(in_toggle_d1),
|
||||
.out_clk(out_clk),
|
||||
.out_resetn(1'b1),
|
||||
.out_bits(out_toggle)
|
||||
);
|
||||
|
||||
sync_bits i_sync_in (
|
||||
.in_bits(out_toggle_d1),
|
||||
.out_clk(in_clk),
|
||||
.out_resetn(1'b1),
|
||||
.out_bits(in_toggle)
|
||||
);
|
||||
|
||||
wire in_ready = in_toggle == in_toggle_d1;
|
||||
wire load_out = out_toggle ^ out_toggle_d1;
|
||||
|
||||
reg [NUM_OF_EVENTS-1:0] in_event_sticky = 'h00;
|
||||
wire [NUM_OF_EVENTS-1:0] pending_events = in_event_sticky | in_event;
|
||||
wire [NUM_OF_EVENTS-1:0] out_event_s;
|
||||
|
||||
always @(posedge in_clk) begin
|
||||
if (in_ready == 1'b1) begin
|
||||
in_event_sticky <= {NUM_OF_EVENTS{1'b0}};
|
||||
if (|pending_events == 1'b1) begin
|
||||
in_toggle_d1 <= ~in_toggle_d1;
|
||||
end
|
||||
end else begin
|
||||
in_event_sticky <= pending_events;
|
||||
end
|
||||
end
|
||||
|
||||
if (NUM_OF_EVENTS > 1) begin
|
||||
reg [NUM_OF_EVENTS-1:0] cdc_hold = 'h00;
|
||||
|
||||
always @(posedge in_clk) begin
|
||||
if (in_ready == 1'b1) begin
|
||||
cdc_hold <= pending_events;
|
||||
end
|
||||
end
|
||||
|
||||
assign out_event_s = cdc_hold;
|
||||
end else begin
|
||||
// When there is only one event, we know that it is set.
|
||||
assign out_event_s = 1'b1;
|
||||
end
|
||||
|
||||
always @(posedge out_clk) begin
|
||||
if (load_out == 1'b1) begin
|
||||
out_event <= out_event_s;
|
||||
end else begin
|
||||
out_event <= {NUM_OF_EVENTS{1'b0}};
|
||||
end
|
||||
out_toggle_d1 <= out_toggle;
|
||||
end
|
||||
|
||||
end else begin
|
||||
always @(*) begin
|
||||
out_event <= in_event;
|
||||
end
|
||||
end
|
||||
endgenerate
|
||||
|
||||
endmodule
|
||||
@@ -0,0 +1,115 @@
|
||||
// ***************************************************************************
|
||||
// ***************************************************************************
|
||||
// Copyright 2014 - 2017 (c) Analog Devices, Inc. All rights reserved.
|
||||
//
|
||||
// In this HDL repository, there are many different and unique modules, consisting
|
||||
// of various HDL (Verilog or VHDL) components. The individual modules are
|
||||
// developed independently, and may be accompanied by separate and unique license
|
||||
// terms.
|
||||
//
|
||||
// The user should read each of these license terms, and understand the
|
||||
// freedoms and responsibilities that he or she has by using this source/core.
|
||||
//
|
||||
// This core is distributed in the hope that it will be useful, but WITHOUT ANY
|
||||
// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
|
||||
// A PARTICULAR PURPOSE.
|
||||
//
|
||||
// Redistribution and use of source or resulting binaries, with or without modification
|
||||
// of this file, are permitted under one of the following two license terms:
|
||||
//
|
||||
// 1. The GNU General Public License version 2 as published by the
|
||||
// Free Software Foundation, which can be found in the top level directory
|
||||
// of this repository (LICENSE_GPL2), and also online at:
|
||||
// <https://www.gnu.org/licenses/old-licenses/gpl-2.0.html>
|
||||
//
|
||||
// OR
|
||||
//
|
||||
// 2. An ADI specific BSD license, which can be found in the top level directory
|
||||
// of this repository (LICENSE_ADIBSD), and also on-line at:
|
||||
// https://github.com/analogdevicesinc/hdl/blob/master/LICENSE_ADIBSD
|
||||
// This will allow to generate bit files and not release the source code,
|
||||
// as long as it attaches to an ADI device.
|
||||
//
|
||||
// ***************************************************************************
|
||||
// ***************************************************************************
|
||||
|
||||
/*
|
||||
* Helper module for synchronizing a counter from one clock domain to another
|
||||
* using gray code. To work correctly the counter must not change its value by
|
||||
* more than one in one clock cycle in the source domain. I.e. the value may
|
||||
* change by either -1, 0 or +1.
|
||||
*/
|
||||
|
||||
`timescale 1ns/100ps
|
||||
|
||||
module sync_gray #(
|
||||
|
||||
// Bit-width of the counter
|
||||
parameter DATA_WIDTH = 1,
|
||||
// Whether the input and output clock are asynchronous, if set to 0 the
|
||||
// synchronizer will be bypassed and out_count will be in_count.
|
||||
parameter ASYNC_CLK = 1)(
|
||||
|
||||
input in_clk,
|
||||
input in_resetn,
|
||||
input [DATA_WIDTH-1:0] in_count,
|
||||
input out_resetn,
|
||||
input out_clk,
|
||||
output [DATA_WIDTH-1:0] out_count);
|
||||
|
||||
generate if (ASYNC_CLK == 1) begin
|
||||
reg [DATA_WIDTH-1:0] cdc_sync_stage0 = 'h0;
|
||||
reg [DATA_WIDTH-1:0] cdc_sync_stage1 = 'h0;
|
||||
reg [DATA_WIDTH-1:0] cdc_sync_stage2 = 'h0;
|
||||
reg [DATA_WIDTH-1:0] out_count_m = 'h0;
|
||||
|
||||
function [DATA_WIDTH-1:0] g2b;
|
||||
input [DATA_WIDTH-1:0] g;
|
||||
reg [DATA_WIDTH-1:0] b;
|
||||
integer i;
|
||||
begin
|
||||
b[DATA_WIDTH-1] = g[DATA_WIDTH-1];
|
||||
for (i = DATA_WIDTH - 2; i >= 0; i = i - 1)
|
||||
b[i] = b[i + 1] ^ g[i];
|
||||
g2b = b;
|
||||
end
|
||||
endfunction
|
||||
|
||||
function [DATA_WIDTH-1:0] b2g;
|
||||
input [DATA_WIDTH-1:0] b;
|
||||
reg [DATA_WIDTH-1:0] g;
|
||||
integer i;
|
||||
begin
|
||||
g[DATA_WIDTH-1] = b[DATA_WIDTH-1];
|
||||
for (i = DATA_WIDTH - 2; i >= 0; i = i -1)
|
||||
g[i] = b[i + 1] ^ b[i];
|
||||
b2g = g;
|
||||
end
|
||||
endfunction
|
||||
|
||||
always @(posedge in_clk) begin
|
||||
if (in_resetn == 1'b0) begin
|
||||
cdc_sync_stage0 <= 'h00;
|
||||
end else begin
|
||||
cdc_sync_stage0 <= b2g(in_count);
|
||||
end
|
||||
end
|
||||
|
||||
always @(posedge out_clk) begin
|
||||
if (out_resetn == 1'b0) begin
|
||||
cdc_sync_stage1 <= 'h00;
|
||||
cdc_sync_stage2 <= 'h00;
|
||||
out_count_m <= 'h00;
|
||||
end else begin
|
||||
cdc_sync_stage1 <= cdc_sync_stage0;
|
||||
cdc_sync_stage2 <= cdc_sync_stage1;
|
||||
out_count_m <= g2b(cdc_sync_stage2);
|
||||
end
|
||||
end
|
||||
|
||||
assign out_count = out_count_m;
|
||||
end else begin
|
||||
assign out_count = in_count;
|
||||
end endgenerate
|
||||
|
||||
endmodule
|
||||
+152
@@ -0,0 +1,152 @@
|
||||
// ***************************************************************************
|
||||
// ***************************************************************************
|
||||
// Copyright 2014 - 2017 (c) Analog Devices, Inc. All rights reserved.
|
||||
//
|
||||
// In this HDL repository, there are many different and unique modules, consisting
|
||||
// of various HDL (Verilog or VHDL) components. The individual modules are
|
||||
// developed independently, and may be accompanied by separate and unique license
|
||||
// terms.
|
||||
//
|
||||
// The user should read each of these license terms, and understand the
|
||||
// freedoms and responsibilities that he or she has by using this source/core.
|
||||
//
|
||||
// This core is distributed in the hope that it will be useful, but WITHOUT ANY
|
||||
// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
|
||||
// A PARTICULAR PURPOSE.
|
||||
//
|
||||
// Redistribution and use of source or resulting binaries, with or without modification
|
||||
// of this file, are permitted under one of the following two license terms:
|
||||
//
|
||||
// 1. The GNU General Public License version 2 as published by the
|
||||
// Free Software Foundation, which can be found in the top level directory
|
||||
// of this repository (LICENSE_GPL2), and also online at:
|
||||
// <https://www.gnu.org/licenses/old-licenses/gpl-2.0.html>
|
||||
//
|
||||
// OR
|
||||
//
|
||||
// 2. An ADI specific BSD license, which can be found in the top level directory
|
||||
// of this repository (LICENSE_ADIBSD), and also on-line at:
|
||||
// https://github.com/analogdevicesinc/hdl/blob/master/LICENSE_ADIBSD
|
||||
// This will allow to generate bit files and not release the source code,
|
||||
// as long as it attaches to an ADI device.
|
||||
//
|
||||
// ***************************************************************************
|
||||
// ***************************************************************************
|
||||
|
||||
`timescale 1ns/100ps
|
||||
|
||||
module fifo_address_gray_pipelined #(
|
||||
parameter ADDRESS_WIDTH = 4
|
||||
) (
|
||||
input m_axis_aclk,
|
||||
input m_axis_aresetn,
|
||||
input m_axis_ready,
|
||||
output reg m_axis_valid,
|
||||
output [ADDRESS_WIDTH-1:0] m_axis_raddr,
|
||||
output reg [ADDRESS_WIDTH:0] m_axis_level,
|
||||
|
||||
input s_axis_aclk,
|
||||
input s_axis_aresetn,
|
||||
output reg s_axis_ready,
|
||||
input s_axis_valid,
|
||||
output reg s_axis_empty,
|
||||
output [ADDRESS_WIDTH-1:0] s_axis_waddr,
|
||||
output reg [ADDRESS_WIDTH:0] s_axis_room
|
||||
);
|
||||
|
||||
localparam MAX_ROOM = {1'b1,{ADDRESS_WIDTH{1'b0}}};
|
||||
|
||||
reg [ADDRESS_WIDTH:0] _s_axis_waddr = 'h00;
|
||||
reg [ADDRESS_WIDTH:0] _s_axis_waddr_next;
|
||||
wire [ADDRESS_WIDTH:0] _s_axis_raddr;
|
||||
|
||||
reg [ADDRESS_WIDTH:0] _m_axis_raddr = 'h00;
|
||||
reg [ADDRESS_WIDTH:0] _m_axis_raddr_next;
|
||||
wire [ADDRESS_WIDTH:0] _m_axis_waddr;
|
||||
|
||||
assign s_axis_waddr = _s_axis_waddr[ADDRESS_WIDTH-1:0];
|
||||
assign m_axis_raddr = _m_axis_raddr[ADDRESS_WIDTH-1:0];
|
||||
|
||||
always @(*)
|
||||
begin
|
||||
if (s_axis_ready && s_axis_valid)
|
||||
_s_axis_waddr_next <= _s_axis_waddr + 1'b1;
|
||||
else
|
||||
_s_axis_waddr_next <= _s_axis_waddr;
|
||||
end
|
||||
|
||||
always @(posedge s_axis_aclk)
|
||||
begin
|
||||
if (s_axis_aresetn == 1'b0) begin
|
||||
_s_axis_waddr <= 'h00;
|
||||
end else begin
|
||||
_s_axis_waddr <= _s_axis_waddr_next;
|
||||
end
|
||||
end
|
||||
|
||||
always @(*)
|
||||
begin
|
||||
if (m_axis_ready && m_axis_valid)
|
||||
_m_axis_raddr_next <= _m_axis_raddr + 1'b1;
|
||||
else
|
||||
_m_axis_raddr_next <= _m_axis_raddr;
|
||||
end
|
||||
|
||||
always @(posedge m_axis_aclk)
|
||||
begin
|
||||
if (m_axis_aresetn == 1'b0) begin
|
||||
_m_axis_raddr <= 'h00;
|
||||
end else begin
|
||||
_m_axis_raddr <= _m_axis_raddr_next;
|
||||
end
|
||||
end
|
||||
|
||||
sync_gray #(
|
||||
.DATA_WIDTH(ADDRESS_WIDTH + 1)
|
||||
) i_waddr_sync (
|
||||
.in_clk(s_axis_aclk),
|
||||
.in_resetn(s_axis_aresetn),
|
||||
.out_clk(m_axis_aclk),
|
||||
.out_resetn(m_axis_aresetn),
|
||||
.in_count(_s_axis_waddr),
|
||||
.out_count(_m_axis_waddr)
|
||||
);
|
||||
|
||||
sync_gray #(
|
||||
.DATA_WIDTH(ADDRESS_WIDTH + 1)
|
||||
) i_raddr_sync (
|
||||
.in_clk(m_axis_aclk),
|
||||
.in_resetn(m_axis_aresetn),
|
||||
.out_clk(s_axis_aclk),
|
||||
.out_resetn(s_axis_aresetn),
|
||||
.in_count(_m_axis_raddr),
|
||||
.out_count(_s_axis_raddr)
|
||||
);
|
||||
|
||||
always @(posedge s_axis_aclk)
|
||||
begin
|
||||
if (s_axis_aresetn == 1'b0) begin
|
||||
s_axis_ready <= 1'b1;
|
||||
s_axis_empty <= 1'b1;
|
||||
s_axis_room <= MAX_ROOM;
|
||||
end else begin
|
||||
s_axis_ready <= (_s_axis_raddr[ADDRESS_WIDTH] == _s_axis_waddr_next[ADDRESS_WIDTH] ||
|
||||
_s_axis_raddr[ADDRESS_WIDTH-1:0] != _s_axis_waddr_next[ADDRESS_WIDTH-1:0]);
|
||||
s_axis_empty <= _s_axis_raddr == _s_axis_waddr_next;
|
||||
s_axis_room <= _s_axis_raddr - _s_axis_waddr_next + MAX_ROOM;
|
||||
end
|
||||
end
|
||||
|
||||
always @(posedge m_axis_aclk)
|
||||
begin
|
||||
if (m_axis_aresetn == 1'b0) begin
|
||||
m_axis_valid <= 1'b0;
|
||||
m_axis_level <= 'h00;
|
||||
end else begin
|
||||
m_axis_valid <= _m_axis_waddr != _m_axis_raddr_next;
|
||||
m_axis_level <= _m_axis_waddr - _m_axis_raddr_next;
|
||||
end
|
||||
end
|
||||
|
||||
endmodule
|
||||
|
||||
@@ -0,0 +1,109 @@
|
||||
// ***************************************************************************
|
||||
// ***************************************************************************
|
||||
// Copyright 2014 - 2017 (c) Analog Devices, Inc. All rights reserved.
|
||||
//
|
||||
// In this HDL repository, there are many different and unique modules, consisting
|
||||
// of various HDL (Verilog or VHDL) components. The individual modules are
|
||||
// developed independently, and may be accompanied by separate and unique license
|
||||
// terms.
|
||||
//
|
||||
// The user should read each of these license terms, and understand the
|
||||
// freedoms and responsibilities that he or she has by using this source/core.
|
||||
//
|
||||
// This core is distributed in the hope that it will be useful, but WITHOUT ANY
|
||||
// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
|
||||
// A PARTICULAR PURPOSE.
|
||||
//
|
||||
// Redistribution and use of source or resulting binaries, with or without modification
|
||||
// of this file, are permitted under one of the following two license terms:
|
||||
//
|
||||
// 1. The GNU General Public License version 2 as published by the
|
||||
// Free Software Foundation, which can be found in the top level directory
|
||||
// of this repository (LICENSE_GPL2), and also online at:
|
||||
// <https://www.gnu.org/licenses/old-licenses/gpl-2.0.html>
|
||||
//
|
||||
// OR
|
||||
//
|
||||
// 2. An ADI specific BSD license, which can be found in the top level directory
|
||||
// of this repository (LICENSE_ADIBSD), and also on-line at:
|
||||
// https://github.com/analogdevicesinc/hdl/blob/master/LICENSE_ADIBSD
|
||||
// This will allow to generate bit files and not release the source code,
|
||||
// as long as it attaches to an ADI device.
|
||||
//
|
||||
// ***************************************************************************
|
||||
// ***************************************************************************
|
||||
|
||||
`timescale 1ns/100ps
|
||||
|
||||
module fifo_address_sync #(
|
||||
parameter ADDRESS_WIDTH = 4
|
||||
) (
|
||||
input clk,
|
||||
input resetn,
|
||||
|
||||
input m_axis_ready,
|
||||
output reg m_axis_valid,
|
||||
output reg [ADDRESS_WIDTH-1:0] m_axis_raddr,
|
||||
output [ADDRESS_WIDTH:0] m_axis_level,
|
||||
|
||||
output reg s_axis_ready,
|
||||
input s_axis_valid,
|
||||
output reg s_axis_empty,
|
||||
output reg [ADDRESS_WIDTH-1:0] s_axis_waddr,
|
||||
output [ADDRESS_WIDTH:0] s_axis_room
|
||||
);
|
||||
|
||||
localparam MAX_ROOM = {1'b1,{ADDRESS_WIDTH{1'b0}}};
|
||||
|
||||
reg [ADDRESS_WIDTH:0] room = MAX_ROOM;
|
||||
reg [ADDRESS_WIDTH:0] level = 'h00;
|
||||
reg [ADDRESS_WIDTH:0] level_next;
|
||||
|
||||
assign s_axis_room = room;
|
||||
assign m_axis_level = level;
|
||||
|
||||
wire read = m_axis_ready & m_axis_valid;
|
||||
wire write = s_axis_ready & s_axis_valid;
|
||||
|
||||
always @(posedge clk)
|
||||
begin
|
||||
if (resetn == 1'b0) begin
|
||||
s_axis_waddr <= 'h00;
|
||||
m_axis_raddr <= 'h00;
|
||||
end else begin
|
||||
if (write)
|
||||
s_axis_waddr <= s_axis_waddr + 1'b1;
|
||||
if (read)
|
||||
m_axis_raddr <= m_axis_raddr + 1'b1;
|
||||
end
|
||||
end
|
||||
|
||||
always @(*)
|
||||
begin
|
||||
if (read & ~write)
|
||||
level_next <= level - 1'b1;
|
||||
else if (~read & write)
|
||||
level_next <= level + 1'b1;
|
||||
else
|
||||
level_next <= level;
|
||||
end
|
||||
|
||||
always @(posedge clk)
|
||||
begin
|
||||
if (resetn == 1'b0) begin
|
||||
m_axis_valid <= 1'b0;
|
||||
s_axis_ready <= 1'b0;
|
||||
level <= 'h00;
|
||||
room <= MAX_ROOM;
|
||||
s_axis_empty <= 'h00;
|
||||
end else begin
|
||||
level <= level_next;
|
||||
room <= MAX_ROOM - level_next;
|
||||
m_axis_valid <= level_next != 0;
|
||||
s_axis_ready <= level_next != MAX_ROOM;
|
||||
s_axis_empty <= level_next == 0;
|
||||
end
|
||||
end
|
||||
|
||||
endmodule
|
||||
|
||||
@@ -0,0 +1,248 @@
|
||||
// ***************************************************************************
|
||||
// ***************************************************************************
|
||||
// Copyright 2014 - 2017 (c) Analog Devices, Inc. All rights reserved.
|
||||
//
|
||||
// In this HDL repository, there are many different and unique modules, consisting
|
||||
// of various HDL (Verilog or VHDL) components. The individual modules are
|
||||
// developed independently, and may be accompanied by separate and unique license
|
||||
// terms.
|
||||
//
|
||||
// The user should read each of these license terms, and understand the
|
||||
// freedoms and responsibilities that he or she has by using this source/core.
|
||||
//
|
||||
// This core is distributed in the hope that it will be useful, but WITHOUT ANY
|
||||
// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
|
||||
// A PARTICULAR PURPOSE.
|
||||
//
|
||||
// Redistribution and use of source or resulting binaries, with or without modification
|
||||
// of this file, are permitted under one of the following two license terms:
|
||||
//
|
||||
// 1. The GNU General Public License version 2 as published by the
|
||||
// Free Software Foundation, which can be found in the top level directory
|
||||
// of this repository (LICENSE_GPL2), and also online at:
|
||||
// <https://www.gnu.org/licenses/old-licenses/gpl-2.0.html>
|
||||
//
|
||||
// OR
|
||||
//
|
||||
// 2. An ADI specific BSD license, which can be found in the top level directory
|
||||
// of this repository (LICENSE_ADIBSD), and also on-line at:
|
||||
// https://github.com/analogdevicesinc/hdl/blob/master/LICENSE_ADIBSD
|
||||
// This will allow to generate bit files and not release the source code,
|
||||
// as long as it attaches to an ADI device.
|
||||
//
|
||||
// ***************************************************************************
|
||||
// ***************************************************************************
|
||||
|
||||
`timescale 1ns/100ps
|
||||
|
||||
module util_axis_fifo #(
|
||||
parameter DATA_WIDTH = 64,
|
||||
parameter ASYNC_CLK = 1,
|
||||
parameter ADDRESS_WIDTH = 4,
|
||||
parameter S_AXIS_REGISTERED = 1
|
||||
) (
|
||||
input m_axis_aclk,
|
||||
input m_axis_aresetn,
|
||||
input m_axis_ready,
|
||||
output m_axis_valid,
|
||||
output [DATA_WIDTH-1:0] m_axis_data,
|
||||
output [ADDRESS_WIDTH:0] m_axis_level,
|
||||
|
||||
input s_axis_aclk,
|
||||
input s_axis_aresetn,
|
||||
output s_axis_ready,
|
||||
input s_axis_valid,
|
||||
input [DATA_WIDTH-1:0] s_axis_data,
|
||||
output s_axis_empty,
|
||||
output [ADDRESS_WIDTH:0] s_axis_room
|
||||
);
|
||||
|
||||
generate if (ADDRESS_WIDTH == 0) begin
|
||||
|
||||
reg [DATA_WIDTH-1:0] cdc_sync_fifo_ram;
|
||||
reg s_axis_waddr = 1'b0;
|
||||
reg m_axis_raddr = 1'b0;
|
||||
|
||||
wire m_axis_waddr;
|
||||
wire s_axis_raddr;
|
||||
|
||||
sync_bits #(
|
||||
.NUM_OF_BITS(1),
|
||||
.ASYNC_CLK(ASYNC_CLK)
|
||||
) i_waddr_sync (
|
||||
.out_clk(m_axis_aclk),
|
||||
.out_resetn(m_axis_aresetn),
|
||||
.in_bits(s_axis_waddr),
|
||||
.out_bits(m_axis_waddr)
|
||||
);
|
||||
|
||||
sync_bits #(
|
||||
.NUM_OF_BITS(1),
|
||||
.ASYNC_CLK(ASYNC_CLK)
|
||||
) i_raddr_sync (
|
||||
.out_clk(s_axis_aclk),
|
||||
.out_resetn(s_axis_aresetn),
|
||||
.in_bits(m_axis_raddr),
|
||||
.out_bits(s_axis_raddr)
|
||||
);
|
||||
|
||||
assign m_axis_valid = m_axis_raddr != m_axis_waddr;
|
||||
assign m_axis_level = m_axis_valid;
|
||||
assign s_axis_ready = s_axis_raddr == s_axis_waddr;
|
||||
assign s_axis_empty = s_axis_ready;
|
||||
assign s_axis_room = s_axis_ready;
|
||||
|
||||
always @(posedge s_axis_aclk) begin
|
||||
if (s_axis_ready == 1'b1 && s_axis_valid == 1'b1)
|
||||
cdc_sync_fifo_ram <= s_axis_data;
|
||||
end
|
||||
|
||||
always @(posedge s_axis_aclk) begin
|
||||
if (s_axis_aresetn == 1'b0) begin
|
||||
s_axis_waddr <= 1'b0;
|
||||
end else begin
|
||||
if (s_axis_ready & s_axis_valid) begin
|
||||
s_axis_waddr <= s_axis_waddr + 1'b1;
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
always @(posedge m_axis_aclk) begin
|
||||
if (m_axis_aresetn == 1'b0) begin
|
||||
m_axis_raddr <= 1'b0;
|
||||
end else begin
|
||||
if (m_axis_valid & m_axis_ready)
|
||||
m_axis_raddr <= m_axis_raddr + 1'b1;
|
||||
end
|
||||
end
|
||||
|
||||
assign m_axis_data = cdc_sync_fifo_ram;
|
||||
|
||||
end else begin
|
||||
|
||||
reg [DATA_WIDTH-1:0] ram[0:2**ADDRESS_WIDTH-1];
|
||||
|
||||
wire [ADDRESS_WIDTH-1:0] s_axis_waddr;
|
||||
wire [ADDRESS_WIDTH-1:0] m_axis_raddr;
|
||||
wire _m_axis_ready;
|
||||
wire _m_axis_valid;
|
||||
wire [ADDRESS_WIDTH:0] _m_axis_level;
|
||||
|
||||
wire s_mem_write;
|
||||
wire m_mem_read;
|
||||
|
||||
reg valid;
|
||||
|
||||
always @(posedge m_axis_aclk) begin
|
||||
if (m_axis_aresetn == 1'b0) begin
|
||||
valid <= 1'b0;
|
||||
end else begin
|
||||
if (_m_axis_valid)
|
||||
valid <= 1'b1;
|
||||
else if (m_axis_ready)
|
||||
valid <= 1'b0;
|
||||
end
|
||||
end
|
||||
|
||||
assign s_mem_write = s_axis_ready & s_axis_valid;
|
||||
assign m_mem_read = (~valid || m_axis_ready) && _m_axis_valid;
|
||||
|
||||
if (ASYNC_CLK == 1) begin
|
||||
|
||||
// The assumption is that in this mode the S_AXIS_REGISTERED is 1
|
||||
|
||||
fifo_address_gray_pipelined #(
|
||||
.ADDRESS_WIDTH(ADDRESS_WIDTH)
|
||||
) i_address_gray (
|
||||
.m_axis_aclk(m_axis_aclk),
|
||||
.m_axis_aresetn(m_axis_aresetn),
|
||||
.m_axis_ready(_m_axis_ready),
|
||||
.m_axis_valid(_m_axis_valid),
|
||||
.m_axis_raddr(m_axis_raddr),
|
||||
.m_axis_level(_m_axis_level),
|
||||
|
||||
.s_axis_aclk(s_axis_aclk),
|
||||
.s_axis_aresetn(s_axis_aresetn),
|
||||
.s_axis_ready(s_axis_ready),
|
||||
.s_axis_valid(s_axis_valid),
|
||||
.s_axis_empty(s_axis_empty),
|
||||
.s_axis_waddr(s_axis_waddr),
|
||||
.s_axis_room(s_axis_room)
|
||||
);
|
||||
|
||||
// When the clocks are asynchronous instantiate a block RAM
|
||||
// regardless of the requested size to make sure we threat the
|
||||
// clock crossing correctly
|
||||
ad_mem #(
|
||||
.DATA_WIDTH (DATA_WIDTH),
|
||||
.ADDRESS_WIDTH (ADDRESS_WIDTH))
|
||||
i_mem (
|
||||
.clka(s_axis_aclk),
|
||||
.wea(s_mem_write),
|
||||
.addra(s_axis_waddr),
|
||||
.dina(s_axis_data),
|
||||
.clkb(m_axis_aclk),
|
||||
.reb(m_mem_read),
|
||||
.addrb(m_axis_raddr),
|
||||
.doutb(m_axis_data)
|
||||
);
|
||||
|
||||
assign _m_axis_ready = ~valid || m_axis_ready;
|
||||
assign m_axis_valid = valid;
|
||||
// the util_axis_fifo is functioning in 'first write fall through' mode,
|
||||
// which means that we need to assure that the value of the level reflects
|
||||
// the actual FIFO level plus the available data, which sits on the bus
|
||||
assign m_axis_level = (m_axis_valid) ? _m_axis_level + 1'b1 : _m_axis_level;
|
||||
|
||||
end else begin
|
||||
|
||||
fifo_address_sync #(
|
||||
.ADDRESS_WIDTH(ADDRESS_WIDTH)
|
||||
) i_address_sync (
|
||||
.clk(m_axis_aclk),
|
||||
.resetn(m_axis_aresetn),
|
||||
.m_axis_ready(_m_axis_ready),
|
||||
.m_axis_valid(_m_axis_valid),
|
||||
.m_axis_raddr(m_axis_raddr),
|
||||
.m_axis_level(m_axis_level),
|
||||
|
||||
.s_axis_ready(s_axis_ready),
|
||||
.s_axis_valid(s_axis_valid),
|
||||
.s_axis_empty(s_axis_empty),
|
||||
.s_axis_waddr(s_axis_waddr),
|
||||
.s_axis_room(s_axis_room)
|
||||
);
|
||||
|
||||
// When the clocks are synchronous use behavioral modeling for the SDP RAM
|
||||
// Let the synthesizer decide what to infer (distributed or block RAM)
|
||||
always @(posedge s_axis_aclk) begin
|
||||
if (s_mem_write)
|
||||
ram[s_axis_waddr] <= s_axis_data;
|
||||
end
|
||||
|
||||
if (S_AXIS_REGISTERED == 1) begin
|
||||
|
||||
reg [DATA_WIDTH-1:0] data;
|
||||
|
||||
always @(posedge m_axis_aclk) begin
|
||||
if (m_mem_read)
|
||||
data <= ram[m_axis_raddr];
|
||||
end
|
||||
|
||||
assign _m_axis_ready = ~valid || m_axis_ready;
|
||||
assign m_axis_data = data;
|
||||
assign m_axis_valid = valid;
|
||||
|
||||
end else begin
|
||||
|
||||
assign _m_axis_ready = m_axis_ready;
|
||||
assign m_axis_valid = _m_axis_valid;
|
||||
assign m_axis_data = ram[m_axis_raddr];
|
||||
|
||||
end
|
||||
|
||||
end
|
||||
|
||||
end endgenerate
|
||||
|
||||
endmodule
|
||||
@@ -0,0 +1,71 @@
|
||||
// ***************************************************************************
|
||||
// ***************************************************************************
|
||||
// Copyright 2014 - 2017 (c) Analog Devices, Inc. All rights reserved.
|
||||
//
|
||||
// In this HDL repository, there are many different and unique modules, consisting
|
||||
// of various HDL (Verilog or VHDL) components. The individual modules are
|
||||
// developed independently, and may be accompanied by separate and unique license
|
||||
// terms.
|
||||
//
|
||||
// The user should read each of these license terms, and understand the
|
||||
// freedoms and responsibilities that he or she has by using this source/core.
|
||||
//
|
||||
// This core is distributed in the hope that it will be useful, but WITHOUT ANY
|
||||
// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
|
||||
// A PARTICULAR PURPOSE.
|
||||
//
|
||||
// Redistribution and use of source or resulting binaries, with or without modification
|
||||
// of this file, are permitted under one of the following two license terms:
|
||||
//
|
||||
// 1. The GNU General Public License version 2 as published by the
|
||||
// Free Software Foundation, which can be found in the top level directory
|
||||
// of this repository (LICENSE_GPL2), and also online at:
|
||||
// <https://www.gnu.org/licenses/old-licenses/gpl-2.0.html>
|
||||
//
|
||||
// OR
|
||||
//
|
||||
// 2. An ADI specific BSD license, which can be found in the top level directory
|
||||
// of this repository (LICENSE_ADIBSD), and also on-line at:
|
||||
// https://github.com/analogdevicesinc/hdl/blob/master/LICENSE_ADIBSD
|
||||
// This will allow to generate bit files and not release the source code,
|
||||
// as long as it attaches to an ADI device.
|
||||
//
|
||||
// ***************************************************************************
|
||||
// ***************************************************************************
|
||||
|
||||
`timescale 1ns/100ps
|
||||
|
||||
module ad_mem #(
|
||||
|
||||
parameter DATA_WIDTH = 16,
|
||||
parameter ADDRESS_WIDTH = 5) (
|
||||
|
||||
input clka,
|
||||
input wea,
|
||||
input [(ADDRESS_WIDTH-1):0] addra,
|
||||
input [(DATA_WIDTH-1):0] dina,
|
||||
|
||||
input clkb,
|
||||
input reb,
|
||||
input [(ADDRESS_WIDTH-1):0] addrb,
|
||||
output reg [(DATA_WIDTH-1):0] doutb);
|
||||
|
||||
(* ram_style = "block" *)
|
||||
reg [(DATA_WIDTH-1):0] m_ram[0:((2**ADDRESS_WIDTH)-1)];
|
||||
|
||||
always @(posedge clka) begin
|
||||
if (wea == 1'b1) begin
|
||||
m_ram[addra] <= dina;
|
||||
end
|
||||
end
|
||||
|
||||
always @(posedge clkb) begin
|
||||
if (reb == 1'b1) begin
|
||||
doutb <= m_ram[addrb];
|
||||
end
|
||||
end
|
||||
|
||||
endmodule
|
||||
|
||||
// ***************************************************************************
|
||||
// ***************************************************************************
|
||||
+138
@@ -0,0 +1,138 @@
|
||||
// (c) Copyright 2012 Xilinx, Inc. All rights reserved.
|
||||
//
|
||||
// This file contains confidential and proprietary information
|
||||
// of Xilinx, Inc. and is protected under U.S. and
|
||||
// international copyright and other intellectual property
|
||||
// laws.
|
||||
//
|
||||
// DISCLAIMER
|
||||
// This disclaimer is not a license and does not grant any
|
||||
// rights to the materials distributed herewith. Except as
|
||||
// otherwise provided in a valid license issued to you by
|
||||
// Xilinx, and to the maximum extent permitted by applicable
|
||||
// law: (1) THESE MATERIALS ARE MADE AVAILABLE "AS IS" AND
|
||||
// WITH ALL FAULTS, AND XILINX HEREBY DISCLAIMS ALL WARRANTIES
|
||||
// AND CONDITIONS, EXPRESS, IMPLIED, OR STATUTORY, INCLUDING
|
||||
// BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, NON-
|
||||
// INFRINGEMENT, OR FITNESS FOR ANY PARTICULAR PURPOSE; and
|
||||
// (2) Xilinx shall not be liable (whether in contract or tort,
|
||||
// including negligence, or under any other theory of
|
||||
// liability) for any loss or damage of any kind or nature
|
||||
// related to, arising under or in connection with these
|
||||
// materials, including for any direct, or any indirect,
|
||||
// special, incidental, or consequential loss or damage
|
||||
// (including loss of data, profits, goodwill, or any type of
|
||||
// loss or damage suffered as a result of any action brought
|
||||
// by a third party) even if such damage or loss was
|
||||
// reasonably foreseeable or Xilinx had been advised of the
|
||||
// possibility of the same.
|
||||
//
|
||||
// CRITICAL APPLICATIONS
|
||||
// Xilinx products are not designed or intended to be fail-
|
||||
// safe, or for use in any application requiring fail-safe
|
||||
// performance, such as life-support or safety devices or
|
||||
// systems, Class III medical devices, nuclear facilities,
|
||||
// applications related to the deployment of airbags, or any
|
||||
// other applications that could lead to death, personal
|
||||
// injury, or severe property or environmental damage
|
||||
// (individually and collectively, "Critical
|
||||
// Applications"). Customer assumes the sole risk and
|
||||
// liability of any use of Xilinx products in Critical
|
||||
// Applications, subject only to applicable laws and
|
||||
// regulations governing limitations on product liability.
|
||||
//
|
||||
// THIS COPYRIGHT NOTICE AND DISCLAIMER MUST BE RETAINED AS
|
||||
// PART OF THIS FILE AT ALL TIMES.
|
||||
//-----------------------------------------------------------------------------
|
||||
//
|
||||
// Generic Functions used by AXI Infrastructure Modules
|
||||
//
|
||||
// Verilog-standard: Verilog 2001
|
||||
//--------------------------------------------------------------------------
|
||||
// Global Parameters:
|
||||
//
|
||||
// Functions:
|
||||
//
|
||||
// Tasks:
|
||||
//--------------------------------------------------------------------------
|
||||
///////////////////////////////////////////////////////////////////////////////
|
||||
// BEGIN Global Parameters
|
||||
///////////////////////////////////////////////////////////////////////////////
|
||||
localparam G_AXI_AWADDR_INDEX = 0;
|
||||
localparam G_AXI_AWADDR_WIDTH = C_AXI_ADDR_WIDTH;
|
||||
localparam G_AXI_AWPROT_INDEX = G_AXI_AWADDR_INDEX + G_AXI_AWADDR_WIDTH;
|
||||
localparam G_AXI_AWPROT_WIDTH = 3;
|
||||
localparam G_AXI_AWSIZE_INDEX = G_AXI_AWPROT_INDEX + G_AXI_AWPROT_WIDTH;
|
||||
localparam G_AXI_AWSIZE_WIDTH = (C_AXI_PROTOCOL == 2) ? 0 : 3;
|
||||
localparam G_AXI_AWBURST_INDEX = G_AXI_AWSIZE_INDEX + G_AXI_AWSIZE_WIDTH;
|
||||
localparam G_AXI_AWBURST_WIDTH = (C_AXI_PROTOCOL == 2) ? 0 : 2;
|
||||
localparam G_AXI_AWCACHE_INDEX = G_AXI_AWBURST_INDEX + G_AXI_AWBURST_WIDTH;
|
||||
localparam G_AXI_AWCACHE_WIDTH = (C_AXI_PROTOCOL == 2) ? 0 : 4;
|
||||
localparam G_AXI_AWLEN_INDEX = G_AXI_AWCACHE_INDEX + G_AXI_AWCACHE_WIDTH;
|
||||
localparam G_AXI_AWLEN_WIDTH = (C_AXI_PROTOCOL == 2) ? 0 : (C_AXI_PROTOCOL == 1) ? 4 : 8;
|
||||
localparam G_AXI_AWLOCK_INDEX = G_AXI_AWLEN_INDEX + G_AXI_AWLEN_WIDTH;
|
||||
localparam G_AXI_AWLOCK_WIDTH = (C_AXI_PROTOCOL == 2) ? 0 : (C_AXI_PROTOCOL == 1) ? 2 : 1;
|
||||
localparam G_AXI_AWID_INDEX = G_AXI_AWLOCK_INDEX + G_AXI_AWLOCK_WIDTH;
|
||||
localparam G_AXI_AWID_WIDTH = (C_AXI_PROTOCOL == 2) ? 0 : C_AXI_ID_WIDTH;
|
||||
localparam G_AXI_AWQOS_INDEX = G_AXI_AWID_INDEX + G_AXI_AWID_WIDTH;
|
||||
localparam G_AXI_AWQOS_WIDTH = (C_AXI_PROTOCOL == 2) ? 0 : 4;
|
||||
localparam G_AXI_AWREGION_INDEX = G_AXI_AWQOS_INDEX + G_AXI_AWQOS_WIDTH;
|
||||
localparam G_AXI_AWREGION_WIDTH = (C_AXI_PROTOCOL == 2) ? 0 : (C_AXI_SUPPORTS_REGION_SIGNALS == 0) ? 0 : 4;
|
||||
localparam G_AXI_AWUSER_INDEX = G_AXI_AWREGION_INDEX + G_AXI_AWREGION_WIDTH;
|
||||
localparam G_AXI_AWUSER_WIDTH = (C_AXI_PROTOCOL == 2) ? 0 : (C_AXI_SUPPORTS_USER_SIGNALS == 0) ? 0 : C_AXI_AWUSER_WIDTH;
|
||||
localparam G_AXI_AWPAYLOAD_WIDTH = G_AXI_AWUSER_INDEX + G_AXI_AWUSER_WIDTH;
|
||||
localparam G_AXI_ARADDR_INDEX = 0;
|
||||
localparam G_AXI_ARADDR_WIDTH = C_AXI_ADDR_WIDTH;
|
||||
localparam G_AXI_ARPROT_INDEX = G_AXI_ARADDR_INDEX + G_AXI_ARADDR_WIDTH;
|
||||
localparam G_AXI_ARPROT_WIDTH = 3;
|
||||
localparam G_AXI_ARSIZE_INDEX = G_AXI_ARPROT_INDEX + G_AXI_ARPROT_WIDTH;
|
||||
localparam G_AXI_ARSIZE_WIDTH = (C_AXI_PROTOCOL == 2) ? 0 : 3;
|
||||
localparam G_AXI_ARBURST_INDEX = G_AXI_ARSIZE_INDEX + G_AXI_ARSIZE_WIDTH;
|
||||
localparam G_AXI_ARBURST_WIDTH = (C_AXI_PROTOCOL == 2) ? 0 : 2;
|
||||
localparam G_AXI_ARCACHE_INDEX = G_AXI_ARBURST_INDEX + G_AXI_ARBURST_WIDTH;
|
||||
localparam G_AXI_ARCACHE_WIDTH = (C_AXI_PROTOCOL == 2) ? 0 : 4;
|
||||
localparam G_AXI_ARLEN_INDEX = G_AXI_ARCACHE_INDEX + G_AXI_ARCACHE_WIDTH;
|
||||
localparam G_AXI_ARLEN_WIDTH = (C_AXI_PROTOCOL == 2) ? 0 : (C_AXI_PROTOCOL == 1) ? 4 : 8;
|
||||
localparam G_AXI_ARLOCK_INDEX = G_AXI_ARLEN_INDEX + G_AXI_ARLEN_WIDTH;
|
||||
localparam G_AXI_ARLOCK_WIDTH = (C_AXI_PROTOCOL == 2) ? 0 : (C_AXI_PROTOCOL == 1) ? 2 : 1;
|
||||
localparam G_AXI_ARID_INDEX = G_AXI_ARLOCK_INDEX + G_AXI_ARLOCK_WIDTH;
|
||||
localparam G_AXI_ARID_WIDTH = (C_AXI_PROTOCOL == 2) ? 0 : C_AXI_ID_WIDTH;
|
||||
localparam G_AXI_ARQOS_INDEX = G_AXI_ARID_INDEX + G_AXI_ARID_WIDTH;
|
||||
localparam G_AXI_ARQOS_WIDTH = (C_AXI_PROTOCOL == 2) ? 0 : 4;
|
||||
localparam G_AXI_ARREGION_INDEX = G_AXI_ARQOS_INDEX + G_AXI_ARQOS_WIDTH;
|
||||
localparam G_AXI_ARREGION_WIDTH = (C_AXI_PROTOCOL == 2) ? 0 : (C_AXI_SUPPORTS_REGION_SIGNALS == 0) ? 0 : 4;
|
||||
localparam G_AXI_ARUSER_INDEX = G_AXI_ARREGION_INDEX + G_AXI_ARREGION_WIDTH;
|
||||
localparam G_AXI_ARUSER_WIDTH = (C_AXI_PROTOCOL == 2) ? 0 : (C_AXI_SUPPORTS_USER_SIGNALS == 0) ? 0 : C_AXI_ARUSER_WIDTH;
|
||||
localparam G_AXI_ARPAYLOAD_WIDTH = G_AXI_ARUSER_INDEX + G_AXI_ARUSER_WIDTH;
|
||||
// Write channel widths
|
||||
localparam G_AXI_WDATA_INDEX = 0;
|
||||
localparam G_AXI_WDATA_WIDTH = C_AXI_DATA_WIDTH;
|
||||
localparam G_AXI_WSTRB_INDEX = G_AXI_WDATA_INDEX + G_AXI_WDATA_WIDTH;
|
||||
localparam G_AXI_WSTRB_WIDTH = C_AXI_DATA_WIDTH / 8;
|
||||
localparam G_AXI_WLAST_INDEX = G_AXI_WSTRB_INDEX + G_AXI_WSTRB_WIDTH;
|
||||
localparam G_AXI_WLAST_WIDTH = (C_AXI_PROTOCOL == 2) ? 0 : 1;
|
||||
localparam G_AXI_WID_INDEX = G_AXI_WLAST_INDEX + G_AXI_WLAST_WIDTH;
|
||||
localparam G_AXI_WID_WIDTH = (C_AXI_PROTOCOL != 1) ? 0 : C_AXI_ID_WIDTH;
|
||||
localparam G_AXI_WUSER_INDEX = G_AXI_WID_INDEX + G_AXI_WID_WIDTH;
|
||||
localparam G_AXI_WUSER_WIDTH = (C_AXI_PROTOCOL == 2) ? 0 : (C_AXI_SUPPORTS_USER_SIGNALS == 0) ? 0 : C_AXI_WUSER_WIDTH;
|
||||
localparam G_AXI_WPAYLOAD_WIDTH = G_AXI_WUSER_INDEX + G_AXI_WUSER_WIDTH;
|
||||
// Write Response channel Widths
|
||||
localparam G_AXI_BRESP_INDEX = 0;
|
||||
localparam G_AXI_BRESP_WIDTH = 2;
|
||||
localparam G_AXI_BID_INDEX = G_AXI_BRESP_INDEX + G_AXI_BRESP_WIDTH;
|
||||
localparam G_AXI_BID_WIDTH = (C_AXI_PROTOCOL == 2) ? 0 : C_AXI_ID_WIDTH;
|
||||
localparam G_AXI_BUSER_INDEX = G_AXI_BID_INDEX + G_AXI_BID_WIDTH;
|
||||
localparam G_AXI_BUSER_WIDTH = (C_AXI_PROTOCOL == 2) ? 0 : (C_AXI_SUPPORTS_USER_SIGNALS == 0) ? 0 : C_AXI_BUSER_WIDTH;
|
||||
localparam G_AXI_BPAYLOAD_WIDTH = G_AXI_BUSER_INDEX + G_AXI_BUSER_WIDTH;
|
||||
// Read channel widths
|
||||
localparam G_AXI_RDATA_INDEX = 0;
|
||||
localparam G_AXI_RDATA_WIDTH = C_AXI_DATA_WIDTH;
|
||||
localparam G_AXI_RRESP_INDEX = G_AXI_RDATA_INDEX + G_AXI_RDATA_WIDTH;
|
||||
localparam G_AXI_RRESP_WIDTH = 2;
|
||||
localparam G_AXI_RLAST_INDEX = G_AXI_RRESP_INDEX + G_AXI_RRESP_WIDTH;
|
||||
localparam G_AXI_RLAST_WIDTH = (C_AXI_PROTOCOL == 2) ? 0 : 1;
|
||||
localparam G_AXI_RID_INDEX = G_AXI_RLAST_INDEX + G_AXI_RLAST_WIDTH;
|
||||
localparam G_AXI_RID_WIDTH = (C_AXI_PROTOCOL == 2) ? 0 : C_AXI_ID_WIDTH;
|
||||
localparam G_AXI_RUSER_INDEX = G_AXI_RID_INDEX + G_AXI_RID_WIDTH;
|
||||
localparam G_AXI_RUSER_WIDTH = (C_AXI_PROTOCOL == 2) ? 0 : (C_AXI_SUPPORTS_USER_SIGNALS == 0) ? 0 : C_AXI_RUSER_WIDTH;
|
||||
localparam G_AXI_RPAYLOAD_WIDTH = G_AXI_RUSER_INDEX + G_AXI_RUSER_WIDTH;
|
||||
+670
@@ -0,0 +1,670 @@
|
||||
// (c) Copyright 2012 Xilinx, Inc. All rights reserved.
|
||||
//
|
||||
// This file contains confidential and proprietary information
|
||||
// of Xilinx, Inc. and is protected under U.S. and
|
||||
// international copyright and other intellectual property
|
||||
// laws.
|
||||
//
|
||||
// DISCLAIMER
|
||||
// This disclaimer is not a license and does not grant any
|
||||
// rights to the materials distributed herewith. Except as
|
||||
// otherwise provided in a valid license issued to you by
|
||||
// Xilinx, and to the maximum extent permitted by applicable
|
||||
// law: (1) THESE MATERIALS ARE MADE AVAILABLE "AS IS" AND
|
||||
// WITH ALL FAULTS, AND XILINX HEREBY DISCLAIMS ALL WARRANTIES
|
||||
// AND CONDITIONS, EXPRESS, IMPLIED, OR STATUTORY, INCLUDING
|
||||
// BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, NON-
|
||||
// INFRINGEMENT, OR FITNESS FOR ANY PARTICULAR PURPOSE; and
|
||||
// (2) Xilinx shall not be liable (whether in contract or tort,
|
||||
// including negligence, or under any other theory of
|
||||
// liability) for any loss or damage of any kind or nature
|
||||
// related to, arising under or in connection with these
|
||||
// materials, including for any direct, or any indirect,
|
||||
// special, incidental, or consequential loss or damage
|
||||
// (including loss of data, profits, goodwill, or any type of
|
||||
// loss or damage suffered as a result of any action brought
|
||||
// by a third party) even if such damage or loss was
|
||||
// reasonably foreseeable or Xilinx had been advised of the
|
||||
// possibility of the same.
|
||||
//
|
||||
// CRITICAL APPLICATIONS
|
||||
// Xilinx products are not designed or intended to be fail-
|
||||
// safe, or for use in any application requiring fail-safe
|
||||
// performance, such as life-support or safety devices or
|
||||
// systems, Class III medical devices, nuclear facilities,
|
||||
// applications related to the deployment of airbags, or any
|
||||
// other applications that could lead to death, personal
|
||||
// injury, or severe property or environmental damage
|
||||
// (individually and collectively, "Critical
|
||||
// Applications"). Customer assumes the sole risk and
|
||||
// liability of any use of Xilinx products in Critical
|
||||
// Applications, subject only to applicable laws and
|
||||
// regulations governing limitations on product liability.
|
||||
//
|
||||
// THIS COPYRIGHT NOTICE AND DISCLAIMER MUST BE RETAINED AS
|
||||
// PART OF THIS FILE AT ALL TIMES.
|
||||
//-----------------------------------------------------------------------------
|
||||
//
|
||||
// axis to vector
|
||||
// A generic module to merge all axi signals into one signal called payload.
|
||||
// This is strictly wires, so no clk, reset, aclken, valid/ready are required.
|
||||
//
|
||||
// Verilog-standard: Verilog 2001
|
||||
//--------------------------------------------------------------------------
|
||||
//
|
||||
|
||||
`timescale 1ps/1ps
|
||||
`default_nettype none
|
||||
|
||||
(* DowngradeIPIdentifiedWarnings="yes" *)
|
||||
module axi_infrastructure_v1_1_0_axi2vector #
|
||||
(
|
||||
///////////////////////////////////////////////////////////////////////////////
|
||||
// Parameter Definitions
|
||||
///////////////////////////////////////////////////////////////////////////////
|
||||
parameter integer C_AXI_PROTOCOL = 0,
|
||||
parameter integer C_AXI_ID_WIDTH = 4,
|
||||
parameter integer C_AXI_ADDR_WIDTH = 32,
|
||||
parameter integer C_AXI_DATA_WIDTH = 32,
|
||||
parameter integer C_AXI_SUPPORTS_USER_SIGNALS = 0,
|
||||
parameter integer C_AXI_SUPPORTS_REGION_SIGNALS = 0,
|
||||
parameter integer C_AXI_AWUSER_WIDTH = 1,
|
||||
parameter integer C_AXI_WUSER_WIDTH = 1,
|
||||
parameter integer C_AXI_BUSER_WIDTH = 1,
|
||||
parameter integer C_AXI_ARUSER_WIDTH = 1,
|
||||
parameter integer C_AXI_RUSER_WIDTH = 1,
|
||||
parameter integer C_AWPAYLOAD_WIDTH = 61,
|
||||
parameter integer C_WPAYLOAD_WIDTH = 73,
|
||||
parameter integer C_BPAYLOAD_WIDTH = 6,
|
||||
parameter integer C_ARPAYLOAD_WIDTH = 61,
|
||||
parameter integer C_RPAYLOAD_WIDTH = 69
|
||||
)
|
||||
(
|
||||
///////////////////////////////////////////////////////////////////////////////
|
||||
// Port Declarations
|
||||
///////////////////////////////////////////////////////////////////////////////
|
||||
// Slave Interface Write Address Ports
|
||||
input wire [C_AXI_ID_WIDTH-1:0] s_axi_awid,
|
||||
input wire [C_AXI_ADDR_WIDTH-1:0] s_axi_awaddr,
|
||||
input wire [((C_AXI_PROTOCOL == 1) ? 4 : 8)-1:0] s_axi_awlen,
|
||||
input wire [3-1:0] s_axi_awsize,
|
||||
input wire [2-1:0] s_axi_awburst,
|
||||
input wire [((C_AXI_PROTOCOL == 1) ? 2 : 1)-1:0] s_axi_awlock,
|
||||
input wire [4-1:0] s_axi_awcache,
|
||||
input wire [3-1:0] s_axi_awprot,
|
||||
input wire [4-1:0] s_axi_awregion,
|
||||
input wire [4-1:0] s_axi_awqos,
|
||||
input wire [C_AXI_AWUSER_WIDTH-1:0] s_axi_awuser,
|
||||
|
||||
// Slave Interface Write Data Ports
|
||||
input wire [C_AXI_ID_WIDTH-1:0] s_axi_wid,
|
||||
input wire [C_AXI_DATA_WIDTH-1:0] s_axi_wdata,
|
||||
input wire [C_AXI_DATA_WIDTH/8-1:0] s_axi_wstrb,
|
||||
input wire s_axi_wlast,
|
||||
input wire [C_AXI_WUSER_WIDTH-1:0] s_axi_wuser,
|
||||
|
||||
// Slave Interface Write Response Ports
|
||||
output wire [C_AXI_ID_WIDTH-1:0] s_axi_bid,
|
||||
output wire [2-1:0] s_axi_bresp,
|
||||
output wire [C_AXI_BUSER_WIDTH-1:0] s_axi_buser,
|
||||
|
||||
// Slave Interface Read Address Ports
|
||||
input wire [C_AXI_ID_WIDTH-1:0] s_axi_arid,
|
||||
input wire [C_AXI_ADDR_WIDTH-1:0] s_axi_araddr,
|
||||
input wire [((C_AXI_PROTOCOL == 1) ? 4 : 8)-1:0] s_axi_arlen,
|
||||
input wire [3-1:0] s_axi_arsize,
|
||||
input wire [2-1:0] s_axi_arburst,
|
||||
input wire [((C_AXI_PROTOCOL == 1) ? 2 : 1)-1:0] s_axi_arlock,
|
||||
input wire [4-1:0] s_axi_arcache,
|
||||
input wire [3-1:0] s_axi_arprot,
|
||||
input wire [4-1:0] s_axi_arregion,
|
||||
input wire [4-1:0] s_axi_arqos,
|
||||
input wire [C_AXI_ARUSER_WIDTH-1:0] s_axi_aruser,
|
||||
|
||||
// Slave Interface Read Data Ports
|
||||
output wire [C_AXI_ID_WIDTH-1:0] s_axi_rid,
|
||||
output wire [C_AXI_DATA_WIDTH-1:0] s_axi_rdata,
|
||||
output wire [2-1:0] s_axi_rresp,
|
||||
output wire s_axi_rlast,
|
||||
output wire [C_AXI_RUSER_WIDTH-1:0] s_axi_ruser,
|
||||
|
||||
// payloads
|
||||
output wire [C_AWPAYLOAD_WIDTH-1:0] s_awpayload,
|
||||
output wire [C_WPAYLOAD_WIDTH-1:0] s_wpayload,
|
||||
input wire [C_BPAYLOAD_WIDTH-1:0] s_bpayload,
|
||||
output wire [C_ARPAYLOAD_WIDTH-1:0] s_arpayload,
|
||||
input wire [C_RPAYLOAD_WIDTH-1:0] s_rpayload
|
||||
);
|
||||
|
||||
////////////////////////////////////////////////////////////////////////////////
|
||||
// Functions
|
||||
////////////////////////////////////////////////////////////////////////////////
|
||||
`include "axi_infrastructure_v1_1_0.vh"
|
||||
|
||||
////////////////////////////////////////////////////////////////////////////////
|
||||
// Local parameters
|
||||
////////////////////////////////////////////////////////////////////////////////
|
||||
|
||||
////////////////////////////////////////////////////////////////////////////////
|
||||
// Wires/Reg declarations
|
||||
////////////////////////////////////////////////////////////////////////////////
|
||||
|
||||
////////////////////////////////////////////////////////////////////////////////
|
||||
// BEGIN RTL
|
||||
////////////////////////////////////////////////////////////////////////////////
|
||||
|
||||
// AXI4, AXI4LITE, AXI3 packing
|
||||
assign s_awpayload[G_AXI_AWADDR_INDEX+:G_AXI_AWADDR_WIDTH] = s_axi_awaddr;
|
||||
assign s_awpayload[G_AXI_AWPROT_INDEX+:G_AXI_AWPROT_WIDTH] = s_axi_awprot;
|
||||
|
||||
assign s_wpayload[G_AXI_WDATA_INDEX+:G_AXI_WDATA_WIDTH] = s_axi_wdata;
|
||||
assign s_wpayload[G_AXI_WSTRB_INDEX+:G_AXI_WSTRB_WIDTH] = s_axi_wstrb;
|
||||
|
||||
assign s_axi_bresp = s_bpayload[G_AXI_BRESP_INDEX+:G_AXI_BRESP_WIDTH];
|
||||
|
||||
assign s_arpayload[G_AXI_ARADDR_INDEX+:G_AXI_ARADDR_WIDTH] = s_axi_araddr;
|
||||
assign s_arpayload[G_AXI_ARPROT_INDEX+:G_AXI_ARPROT_WIDTH] = s_axi_arprot;
|
||||
|
||||
assign s_axi_rdata = s_rpayload[G_AXI_RDATA_INDEX+:G_AXI_RDATA_WIDTH];
|
||||
assign s_axi_rresp = s_rpayload[G_AXI_RRESP_INDEX+:G_AXI_RRESP_WIDTH];
|
||||
|
||||
generate
|
||||
if (C_AXI_PROTOCOL == 0 || C_AXI_PROTOCOL == 1) begin : gen_axi4_or_axi3_packing
|
||||
assign s_awpayload[G_AXI_AWSIZE_INDEX+:G_AXI_AWSIZE_WIDTH] = s_axi_awsize;
|
||||
assign s_awpayload[G_AXI_AWBURST_INDEX+:G_AXI_AWBURST_WIDTH] = s_axi_awburst;
|
||||
assign s_awpayload[G_AXI_AWCACHE_INDEX+:G_AXI_AWCACHE_WIDTH] = s_axi_awcache;
|
||||
assign s_awpayload[G_AXI_AWLEN_INDEX+:G_AXI_AWLEN_WIDTH] = s_axi_awlen;
|
||||
assign s_awpayload[G_AXI_AWLOCK_INDEX+:G_AXI_AWLOCK_WIDTH] = s_axi_awlock;
|
||||
assign s_awpayload[G_AXI_AWID_INDEX+:G_AXI_AWID_WIDTH] = s_axi_awid;
|
||||
assign s_awpayload[G_AXI_AWQOS_INDEX+:G_AXI_AWQOS_WIDTH] = s_axi_awqos;
|
||||
|
||||
assign s_wpayload[G_AXI_WLAST_INDEX+:G_AXI_WLAST_WIDTH] = s_axi_wlast;
|
||||
if (C_AXI_PROTOCOL == 1) begin : gen_axi3_wid_packing
|
||||
assign s_wpayload[G_AXI_WID_INDEX+:G_AXI_WID_WIDTH] = s_axi_wid;
|
||||
end
|
||||
else begin : gen_no_axi3_wid_packing
|
||||
end
|
||||
|
||||
assign s_axi_bid = s_bpayload[G_AXI_BID_INDEX+:G_AXI_BID_WIDTH];
|
||||
|
||||
assign s_arpayload[G_AXI_ARSIZE_INDEX+:G_AXI_ARSIZE_WIDTH] = s_axi_arsize;
|
||||
assign s_arpayload[G_AXI_ARBURST_INDEX+:G_AXI_ARBURST_WIDTH] = s_axi_arburst;
|
||||
assign s_arpayload[G_AXI_ARCACHE_INDEX+:G_AXI_ARCACHE_WIDTH] = s_axi_arcache;
|
||||
assign s_arpayload[G_AXI_ARLEN_INDEX+:G_AXI_ARLEN_WIDTH] = s_axi_arlen;
|
||||
assign s_arpayload[G_AXI_ARLOCK_INDEX+:G_AXI_ARLOCK_WIDTH] = s_axi_arlock;
|
||||
assign s_arpayload[G_AXI_ARID_INDEX+:G_AXI_ARID_WIDTH] = s_axi_arid;
|
||||
assign s_arpayload[G_AXI_ARQOS_INDEX+:G_AXI_ARQOS_WIDTH] = s_axi_arqos;
|
||||
|
||||
assign s_axi_rlast = s_rpayload[G_AXI_RLAST_INDEX+:G_AXI_RLAST_WIDTH];
|
||||
assign s_axi_rid = s_rpayload[G_AXI_RID_INDEX+:G_AXI_RID_WIDTH];
|
||||
|
||||
if (C_AXI_SUPPORTS_REGION_SIGNALS == 1 && G_AXI_AWREGION_WIDTH > 0) begin : gen_region_signals
|
||||
assign s_awpayload[G_AXI_AWREGION_INDEX+:G_AXI_AWREGION_WIDTH] = s_axi_awregion;
|
||||
assign s_arpayload[G_AXI_ARREGION_INDEX+:G_AXI_ARREGION_WIDTH] = s_axi_arregion;
|
||||
end
|
||||
else begin : gen_no_region_signals
|
||||
end
|
||||
if (C_AXI_SUPPORTS_USER_SIGNALS == 1 && C_AXI_PROTOCOL != 2) begin : gen_user_signals
|
||||
assign s_awpayload[G_AXI_AWUSER_INDEX+:G_AXI_AWUSER_WIDTH] = s_axi_awuser;
|
||||
assign s_wpayload[G_AXI_WUSER_INDEX+:G_AXI_WUSER_WIDTH] = s_axi_wuser;
|
||||
assign s_axi_buser = s_bpayload[G_AXI_BUSER_INDEX+:G_AXI_BUSER_WIDTH];
|
||||
assign s_arpayload[G_AXI_ARUSER_INDEX+:G_AXI_ARUSER_WIDTH] = s_axi_aruser;
|
||||
assign s_axi_ruser = s_rpayload[G_AXI_RUSER_INDEX+:G_AXI_RUSER_WIDTH];
|
||||
end
|
||||
else begin : gen_no_user_signals
|
||||
assign s_axi_buser = 'b0;
|
||||
assign s_axi_ruser = 'b0;
|
||||
end
|
||||
end
|
||||
else begin : gen_axi4lite_packing
|
||||
assign s_axi_bid = 'b0;
|
||||
assign s_axi_buser = 'b0;
|
||||
|
||||
assign s_axi_rlast = 1'b1;
|
||||
assign s_axi_rid = 'b0;
|
||||
assign s_axi_ruser = 'b0;
|
||||
end
|
||||
endgenerate
|
||||
endmodule
|
||||
|
||||
`default_nettype wire
|
||||
|
||||
|
||||
// (c) Copyright 2012-2013 Xilinx, Inc. All rights reserved.
|
||||
//
|
||||
// This file contains confidential and proprietary information
|
||||
// of Xilinx, Inc. and is protected under U.S. and
|
||||
// international copyright and other intellectual property
|
||||
// laws.
|
||||
//
|
||||
// DISCLAIMER
|
||||
// This disclaimer is not a license and does not grant any
|
||||
// rights to the materials distributed herewith. Except as
|
||||
// otherwise provided in a valid license issued to you by
|
||||
// Xilinx, and to the maximum extent permitted by applicable
|
||||
// law: (1) THESE MATERIALS ARE MADE AVAILABLE "AS IS" AND
|
||||
// WITH ALL FAULTS, AND XILINX HEREBY DISCLAIMS ALL WARRANTIES
|
||||
// AND CONDITIONS, EXPRESS, IMPLIED, OR STATUTORY, INCLUDING
|
||||
// BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, NON-
|
||||
// INFRINGEMENT, OR FITNESS FOR ANY PARTICULAR PURPOSE; and
|
||||
// (2) Xilinx shall not be liable (whether in contract or tort,
|
||||
// including negligence, or under any other theory of
|
||||
// liability) for any loss or damage of any kind or nature
|
||||
// related to, arising under or in connection with these
|
||||
// materials, including for any direct, or any indirect,
|
||||
// special, incidental, or consequential loss or damage
|
||||
// (including loss of data, profits, goodwill, or any type of
|
||||
// loss or damage suffered as a result of any action brought
|
||||
// by a third party) even if such damage or loss was
|
||||
// reasonably foreseeable or Xilinx had been advised of the
|
||||
// possibility of the same.
|
||||
//
|
||||
// CRITICAL APPLICATIONS
|
||||
// Xilinx products are not designed or intended to be fail-
|
||||
// safe, or for use in any application requiring fail-safe
|
||||
// performance, such as life-support or safety devices or
|
||||
// systems, Class III medical devices, nuclear facilities,
|
||||
// applications related to the deployment of airbags, or any
|
||||
// other applications that could lead to death, personal
|
||||
// injury, or severe property or environmental damage
|
||||
// (individually and collectively, "Critical
|
||||
// Applications"). Customer assumes the sole risk and
|
||||
// liability of any use of Xilinx products in Critical
|
||||
// Applications, subject only to applicable laws and
|
||||
// regulations governing limitations on product liability.
|
||||
//
|
||||
// THIS COPYRIGHT NOTICE AND DISCLAIMER MUST BE RETAINED AS
|
||||
// PART OF THIS FILE AT ALL TIMES.
|
||||
//-----------------------------------------------------------------------------
|
||||
// Description: SRL based FIFO for AXIS/AXI Channels.
|
||||
//--------------------------------------------------------------------------
|
||||
|
||||
|
||||
`timescale 1ps/1ps
|
||||
`default_nettype none
|
||||
|
||||
(* DowngradeIPIdentifiedWarnings="yes" *)
|
||||
module axi_infrastructure_v1_1_0_axic_srl_fifo #(
|
||||
///////////////////////////////////////////////////////////////////////////////
|
||||
// Parameter Definitions
|
||||
///////////////////////////////////////////////////////////////////////////////
|
||||
parameter C_FAMILY = "virtex7",
|
||||
parameter integer C_PAYLOAD_WIDTH = 1,
|
||||
parameter integer C_FIFO_DEPTH = 16 // Range: 4-16.
|
||||
)
|
||||
(
|
||||
///////////////////////////////////////////////////////////////////////////////
|
||||
// Port Declarations
|
||||
///////////////////////////////////////////////////////////////////////////////
|
||||
input wire aclk, // Clock
|
||||
input wire aresetn, // Reset
|
||||
input wire [C_PAYLOAD_WIDTH-1:0] s_payload, // Input data
|
||||
input wire s_valid, // Input data valid
|
||||
output reg s_ready, // Input data ready
|
||||
output wire [C_PAYLOAD_WIDTH-1:0] m_payload, // Output data
|
||||
output reg m_valid, // Output data valid
|
||||
input wire m_ready // Output data ready
|
||||
);
|
||||
////////////////////////////////////////////////////////////////////////////////
|
||||
// Functions
|
||||
////////////////////////////////////////////////////////////////////////////////
|
||||
// ceiling logb2
|
||||
function integer f_clogb2 (input integer size);
|
||||
integer s;
|
||||
begin
|
||||
s = size;
|
||||
s = s - 1;
|
||||
for (f_clogb2=1; s>1; f_clogb2=f_clogb2+1)
|
||||
s = s >> 1;
|
||||
end
|
||||
endfunction // clogb2
|
||||
|
||||
////////////////////////////////////////////////////////////////////////////////
|
||||
// Local parameters
|
||||
////////////////////////////////////////////////////////////////////////////////
|
||||
localparam integer LP_LOG_FIFO_DEPTH = f_clogb2(C_FIFO_DEPTH);
|
||||
|
||||
////////////////////////////////////////////////////////////////////////////////
|
||||
// Wires/Reg declarations
|
||||
////////////////////////////////////////////////////////////////////////////////
|
||||
reg [LP_LOG_FIFO_DEPTH-1:0] fifo_index;
|
||||
wire [4-1:0] fifo_addr;
|
||||
wire push;
|
||||
wire pop ;
|
||||
reg areset_r1;
|
||||
|
||||
////////////////////////////////////////////////////////////////////////////////
|
||||
// BEGIN RTL
|
||||
////////////////////////////////////////////////////////////////////////////////
|
||||
|
||||
always @(posedge aclk) begin
|
||||
areset_r1 <= ~aresetn;
|
||||
end
|
||||
|
||||
always @(posedge aclk) begin
|
||||
if (~aresetn) begin
|
||||
fifo_index <= {LP_LOG_FIFO_DEPTH{1'b1}};
|
||||
end
|
||||
else begin
|
||||
fifo_index <= push & ~pop ? fifo_index + 1'b1 :
|
||||
~push & pop ? fifo_index - 1'b1 :
|
||||
fifo_index;
|
||||
end
|
||||
end
|
||||
|
||||
assign push = s_valid & s_ready;
|
||||
|
||||
always @(posedge aclk) begin
|
||||
if (~aresetn) begin
|
||||
s_ready <= 1'b0;
|
||||
end
|
||||
else begin
|
||||
s_ready <= areset_r1 ? 1'b1 :
|
||||
push & ~pop && (fifo_index == (C_FIFO_DEPTH - 2'd2)) ? 1'b0 :
|
||||
~push & pop ? 1'b1 :
|
||||
s_ready;
|
||||
end
|
||||
end
|
||||
|
||||
assign pop = m_valid & m_ready;
|
||||
|
||||
always @(posedge aclk) begin
|
||||
if (~aresetn) begin
|
||||
m_valid <= 1'b0;
|
||||
end
|
||||
else begin
|
||||
m_valid <= ~push & pop && (fifo_index == {LP_LOG_FIFO_DEPTH{1'b0}}) ? 1'b0 :
|
||||
push & ~pop ? 1'b1 :
|
||||
m_valid;
|
||||
end
|
||||
end
|
||||
|
||||
generate
|
||||
if (LP_LOG_FIFO_DEPTH < 4) begin : gen_pad_fifo_addr
|
||||
assign fifo_addr[0+:LP_LOG_FIFO_DEPTH] = fifo_index[LP_LOG_FIFO_DEPTH-1:0];
|
||||
assign fifo_addr[LP_LOG_FIFO_DEPTH+:(4-LP_LOG_FIFO_DEPTH)] = {4-LP_LOG_FIFO_DEPTH{1'b0}};
|
||||
end
|
||||
else begin : gen_fifo_addr
|
||||
assign fifo_addr[LP_LOG_FIFO_DEPTH-1:0] = fifo_index[LP_LOG_FIFO_DEPTH-1:0];
|
||||
end
|
||||
endgenerate
|
||||
|
||||
|
||||
generate
|
||||
genvar i;
|
||||
for (i = 0; i < C_PAYLOAD_WIDTH; i = i + 1) begin : gen_data_bit
|
||||
SRL16E
|
||||
u_srl_fifo(
|
||||
.Q ( m_payload[i] ) ,
|
||||
.A0 ( fifo_addr[0] ) ,
|
||||
.A1 ( fifo_addr[1] ) ,
|
||||
.A2 ( fifo_addr[2] ) ,
|
||||
.A3 ( fifo_addr[3] ) ,
|
||||
.CE ( push ) ,
|
||||
.CLK ( aclk ) ,
|
||||
.D ( s_payload[i] )
|
||||
);
|
||||
end
|
||||
endgenerate
|
||||
|
||||
endmodule
|
||||
|
||||
`default_nettype wire
|
||||
|
||||
|
||||
// (c) Copyright 2012 Xilinx, Inc. All rights reserved.
|
||||
//
|
||||
// This file contains confidential and proprietary information
|
||||
// of Xilinx, Inc. and is protected under U.S. and
|
||||
// international copyright and other intellectual property
|
||||
// laws.
|
||||
//
|
||||
// DISCLAIMER
|
||||
// This disclaimer is not a license and does not grant any
|
||||
// rights to the materials distributed herewith. Except as
|
||||
// otherwise provided in a valid license issued to you by
|
||||
// Xilinx, and to the maximum extent permitted by applicable
|
||||
// law: (1) THESE MATERIALS ARE MADE AVAILABLE "AS IS" AND
|
||||
// WITH ALL FAULTS, AND XILINX HEREBY DISCLAIMS ALL WARRANTIES
|
||||
// AND CONDITIONS, EXPRESS, IMPLIED, OR STATUTORY, INCLUDING
|
||||
// BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, NON-
|
||||
// INFRINGEMENT, OR FITNESS FOR ANY PARTICULAR PURPOSE; and
|
||||
// (2) Xilinx shall not be liable (whether in contract or tort,
|
||||
// including negligence, or under any other theory of
|
||||
// liability) for any loss or damage of any kind or nature
|
||||
// related to, arising under or in connection with these
|
||||
// materials, including for any direct, or any indirect,
|
||||
// special, incidental, or consequential loss or damage
|
||||
// (including loss of data, profits, goodwill, or any type of
|
||||
// loss or damage suffered as a result of any action brought
|
||||
// by a third party) even if such damage or loss was
|
||||
// reasonably foreseeable or Xilinx had been advised of the
|
||||
// possibility of the same.
|
||||
//
|
||||
// CRITICAL APPLICATIONS
|
||||
// Xilinx products are not designed or intended to be fail-
|
||||
// safe, or for use in any application requiring fail-safe
|
||||
// performance, such as life-support or safety devices or
|
||||
// systems, Class III medical devices, nuclear facilities,
|
||||
// applications related to the deployment of airbags, or any
|
||||
// other applications that could lead to death, personal
|
||||
// injury, or severe property or environmental damage
|
||||
// (individually and collectively, "Critical
|
||||
// Applications"). Customer assumes the sole risk and
|
||||
// liability of any use of Xilinx products in Critical
|
||||
// Applications, subject only to applicable laws and
|
||||
// regulations governing limitations on product liability.
|
||||
//
|
||||
// THIS COPYRIGHT NOTICE AND DISCLAIMER MUST BE RETAINED AS
|
||||
// PART OF THIS FILE AT ALL TIMES.
|
||||
//-----------------------------------------------------------------------------
|
||||
//
|
||||
// axi to vector
|
||||
// A generic module to merge all axi signals into one signal called payload.
|
||||
// This is strictly wires, so no clk, reset, aclken, valid/ready are required.
|
||||
//
|
||||
// Verilog-standard: Verilog 2001
|
||||
//--------------------------------------------------------------------------
|
||||
//
|
||||
|
||||
`timescale 1ps/1ps
|
||||
`default_nettype none
|
||||
|
||||
(* DowngradeIPIdentifiedWarnings="yes" *)
|
||||
module axi_infrastructure_v1_1_0_vector2axi #
|
||||
(
|
||||
///////////////////////////////////////////////////////////////////////////////
|
||||
// Parameter Definitions
|
||||
///////////////////////////////////////////////////////////////////////////////
|
||||
parameter integer C_AXI_PROTOCOL = 0,
|
||||
parameter integer C_AXI_ID_WIDTH = 4,
|
||||
parameter integer C_AXI_ADDR_WIDTH = 32,
|
||||
parameter integer C_AXI_DATA_WIDTH = 32,
|
||||
parameter integer C_AXI_SUPPORTS_USER_SIGNALS = 0,
|
||||
parameter integer C_AXI_SUPPORTS_REGION_SIGNALS = 0,
|
||||
parameter integer C_AXI_AWUSER_WIDTH = 1,
|
||||
parameter integer C_AXI_WUSER_WIDTH = 1,
|
||||
parameter integer C_AXI_BUSER_WIDTH = 1,
|
||||
parameter integer C_AXI_ARUSER_WIDTH = 1,
|
||||
parameter integer C_AXI_RUSER_WIDTH = 1,
|
||||
parameter integer C_AWPAYLOAD_WIDTH = 61,
|
||||
parameter integer C_WPAYLOAD_WIDTH = 73,
|
||||
parameter integer C_BPAYLOAD_WIDTH = 6,
|
||||
parameter integer C_ARPAYLOAD_WIDTH = 61,
|
||||
parameter integer C_RPAYLOAD_WIDTH = 69
|
||||
)
|
||||
(
|
||||
///////////////////////////////////////////////////////////////////////////////
|
||||
// Port Declarations
|
||||
///////////////////////////////////////////////////////////////////////////////
|
||||
// Slave Interface Write Address Ports
|
||||
output wire [C_AXI_ID_WIDTH-1:0] m_axi_awid,
|
||||
output wire [C_AXI_ADDR_WIDTH-1:0] m_axi_awaddr,
|
||||
output wire [((C_AXI_PROTOCOL == 1) ? 4 : 8)-1:0] m_axi_awlen,
|
||||
output wire [3-1:0] m_axi_awsize,
|
||||
output wire [2-1:0] m_axi_awburst,
|
||||
output wire [((C_AXI_PROTOCOL == 1) ? 2 : 1)-1:0] m_axi_awlock,
|
||||
output wire [4-1:0] m_axi_awcache,
|
||||
output wire [3-1:0] m_axi_awprot,
|
||||
output wire [4-1:0] m_axi_awregion,
|
||||
output wire [4-1:0] m_axi_awqos,
|
||||
output wire [C_AXI_AWUSER_WIDTH-1:0] m_axi_awuser,
|
||||
|
||||
// Slave Interface Write Data Ports
|
||||
output wire [C_AXI_ID_WIDTH-1:0] m_axi_wid,
|
||||
output wire [C_AXI_DATA_WIDTH-1:0] m_axi_wdata,
|
||||
output wire [C_AXI_DATA_WIDTH/8-1:0] m_axi_wstrb,
|
||||
output wire m_axi_wlast,
|
||||
output wire [C_AXI_WUSER_WIDTH-1:0] m_axi_wuser,
|
||||
|
||||
// Slave Interface Write Response Ports
|
||||
input wire [C_AXI_ID_WIDTH-1:0] m_axi_bid,
|
||||
input wire [2-1:0] m_axi_bresp,
|
||||
input wire [C_AXI_BUSER_WIDTH-1:0] m_axi_buser,
|
||||
|
||||
// Slave Interface Read Address Ports
|
||||
output wire [C_AXI_ID_WIDTH-1:0] m_axi_arid,
|
||||
output wire [C_AXI_ADDR_WIDTH-1:0] m_axi_araddr,
|
||||
output wire [((C_AXI_PROTOCOL == 1) ? 4 : 8)-1:0] m_axi_arlen,
|
||||
output wire [3-1:0] m_axi_arsize,
|
||||
output wire [2-1:0] m_axi_arburst,
|
||||
output wire [((C_AXI_PROTOCOL == 1) ? 2 : 1)-1:0] m_axi_arlock,
|
||||
output wire [4-1:0] m_axi_arcache,
|
||||
output wire [3-1:0] m_axi_arprot,
|
||||
output wire [4-1:0] m_axi_arregion,
|
||||
output wire [4-1:0] m_axi_arqos,
|
||||
output wire [C_AXI_ARUSER_WIDTH-1:0] m_axi_aruser,
|
||||
|
||||
// Slave Interface Read Data Ports
|
||||
input wire [C_AXI_ID_WIDTH-1:0] m_axi_rid,
|
||||
input wire [C_AXI_DATA_WIDTH-1:0] m_axi_rdata,
|
||||
input wire [2-1:0] m_axi_rresp,
|
||||
input wire m_axi_rlast,
|
||||
input wire [C_AXI_RUSER_WIDTH-1:0] m_axi_ruser,
|
||||
|
||||
// payloads
|
||||
input wire [C_AWPAYLOAD_WIDTH-1:0] m_awpayload,
|
||||
input wire [C_WPAYLOAD_WIDTH-1:0] m_wpayload,
|
||||
output wire [C_BPAYLOAD_WIDTH-1:0] m_bpayload,
|
||||
input wire [C_ARPAYLOAD_WIDTH-1:0] m_arpayload,
|
||||
output wire [C_RPAYLOAD_WIDTH-1:0] m_rpayload
|
||||
);
|
||||
|
||||
////////////////////////////////////////////////////////////////////////////////
|
||||
// Functions
|
||||
////////////////////////////////////////////////////////////////////////////////
|
||||
`include "axi_infrastructure_v1_1_0.vh"
|
||||
|
||||
////////////////////////////////////////////////////////////////////////////////
|
||||
// Local parameters
|
||||
////////////////////////////////////////////////////////////////////////////////
|
||||
|
||||
////////////////////////////////////////////////////////////////////////////////
|
||||
// Wires/Reg declarations
|
||||
////////////////////////////////////////////////////////////////////////////////
|
||||
|
||||
////////////////////////////////////////////////////////////////////////////////
|
||||
// BEGIN RTL
|
||||
////////////////////////////////////////////////////////////////////////////////
|
||||
|
||||
// AXI4, AXI4LITE, AXI3 packing
|
||||
assign m_axi_awaddr = m_awpayload[G_AXI_AWADDR_INDEX+:G_AXI_AWADDR_WIDTH];
|
||||
assign m_axi_awprot = m_awpayload[G_AXI_AWPROT_INDEX+:G_AXI_AWPROT_WIDTH];
|
||||
|
||||
assign m_axi_wdata = m_wpayload[G_AXI_WDATA_INDEX+:G_AXI_WDATA_WIDTH];
|
||||
assign m_axi_wstrb = m_wpayload[G_AXI_WSTRB_INDEX+:G_AXI_WSTRB_WIDTH];
|
||||
|
||||
assign m_bpayload[G_AXI_BRESP_INDEX+:G_AXI_BRESP_WIDTH] = m_axi_bresp;
|
||||
|
||||
assign m_axi_araddr = m_arpayload[G_AXI_ARADDR_INDEX+:G_AXI_ARADDR_WIDTH];
|
||||
assign m_axi_arprot = m_arpayload[G_AXI_ARPROT_INDEX+:G_AXI_ARPROT_WIDTH];
|
||||
|
||||
assign m_rpayload[G_AXI_RDATA_INDEX+:G_AXI_RDATA_WIDTH] = m_axi_rdata;
|
||||
assign m_rpayload[G_AXI_RRESP_INDEX+:G_AXI_RRESP_WIDTH] = m_axi_rresp;
|
||||
|
||||
generate
|
||||
if (C_AXI_PROTOCOL == 0 || C_AXI_PROTOCOL == 1) begin : gen_axi4_or_axi3_packing
|
||||
assign m_axi_awsize = m_awpayload[G_AXI_AWSIZE_INDEX+:G_AXI_AWSIZE_WIDTH] ;
|
||||
assign m_axi_awburst = m_awpayload[G_AXI_AWBURST_INDEX+:G_AXI_AWBURST_WIDTH];
|
||||
assign m_axi_awcache = m_awpayload[G_AXI_AWCACHE_INDEX+:G_AXI_AWCACHE_WIDTH];
|
||||
assign m_axi_awlen = m_awpayload[G_AXI_AWLEN_INDEX+:G_AXI_AWLEN_WIDTH] ;
|
||||
assign m_axi_awlock = m_awpayload[G_AXI_AWLOCK_INDEX+:G_AXI_AWLOCK_WIDTH] ;
|
||||
assign m_axi_awid = m_awpayload[G_AXI_AWID_INDEX+:G_AXI_AWID_WIDTH] ;
|
||||
assign m_axi_awqos = m_awpayload[G_AXI_AWQOS_INDEX+:G_AXI_AWQOS_WIDTH] ;
|
||||
|
||||
assign m_axi_wlast = m_wpayload[G_AXI_WLAST_INDEX+:G_AXI_WLAST_WIDTH] ;
|
||||
if (C_AXI_PROTOCOL == 1) begin : gen_axi3_wid_packing
|
||||
assign m_axi_wid = m_wpayload[G_AXI_WID_INDEX+:G_AXI_WID_WIDTH] ;
|
||||
end
|
||||
else begin : gen_no_axi3_wid_packing
|
||||
assign m_axi_wid = 1'b0;
|
||||
end
|
||||
|
||||
assign m_bpayload[G_AXI_BID_INDEX+:G_AXI_BID_WIDTH] = m_axi_bid;
|
||||
|
||||
assign m_axi_arsize = m_arpayload[G_AXI_ARSIZE_INDEX+:G_AXI_ARSIZE_WIDTH] ;
|
||||
assign m_axi_arburst = m_arpayload[G_AXI_ARBURST_INDEX+:G_AXI_ARBURST_WIDTH];
|
||||
assign m_axi_arcache = m_arpayload[G_AXI_ARCACHE_INDEX+:G_AXI_ARCACHE_WIDTH];
|
||||
assign m_axi_arlen = m_arpayload[G_AXI_ARLEN_INDEX+:G_AXI_ARLEN_WIDTH] ;
|
||||
assign m_axi_arlock = m_arpayload[G_AXI_ARLOCK_INDEX+:G_AXI_ARLOCK_WIDTH] ;
|
||||
assign m_axi_arid = m_arpayload[G_AXI_ARID_INDEX+:G_AXI_ARID_WIDTH] ;
|
||||
assign m_axi_arqos = m_arpayload[G_AXI_ARQOS_INDEX+:G_AXI_ARQOS_WIDTH] ;
|
||||
|
||||
assign m_rpayload[G_AXI_RLAST_INDEX+:G_AXI_RLAST_WIDTH] = m_axi_rlast;
|
||||
assign m_rpayload[G_AXI_RID_INDEX+:G_AXI_RID_WIDTH] = m_axi_rid ;
|
||||
|
||||
if (C_AXI_SUPPORTS_REGION_SIGNALS == 1 && G_AXI_AWREGION_WIDTH > 0) begin : gen_region_signals
|
||||
assign m_axi_awregion = m_awpayload[G_AXI_AWREGION_INDEX+:G_AXI_AWREGION_WIDTH];
|
||||
assign m_axi_arregion = m_arpayload[G_AXI_ARREGION_INDEX+:G_AXI_ARREGION_WIDTH];
|
||||
end
|
||||
else begin : gen_no_region_signals
|
||||
assign m_axi_awregion = 'b0;
|
||||
assign m_axi_arregion = 'b0;
|
||||
end
|
||||
if (C_AXI_SUPPORTS_USER_SIGNALS == 1 && C_AXI_PROTOCOL != 2) begin : gen_user_signals
|
||||
assign m_axi_awuser = m_awpayload[G_AXI_AWUSER_INDEX+:G_AXI_AWUSER_WIDTH];
|
||||
assign m_axi_wuser = m_wpayload[G_AXI_WUSER_INDEX+:G_AXI_WUSER_WIDTH] ;
|
||||
assign m_bpayload[G_AXI_BUSER_INDEX+:G_AXI_BUSER_WIDTH] = m_axi_buser ;
|
||||
assign m_axi_aruser = m_arpayload[G_AXI_ARUSER_INDEX+:G_AXI_ARUSER_WIDTH];
|
||||
assign m_rpayload[G_AXI_RUSER_INDEX+:G_AXI_RUSER_WIDTH] = m_axi_ruser ;
|
||||
end
|
||||
else begin : gen_no_user_signals
|
||||
assign m_axi_awuser = 'b0;
|
||||
assign m_axi_wuser = 'b0;
|
||||
assign m_axi_aruser = 'b0;
|
||||
end
|
||||
end
|
||||
else begin : gen_axi4lite_packing
|
||||
assign m_axi_awsize = (C_AXI_DATA_WIDTH == 32) ? 3'd2 : 3'd3;
|
||||
assign m_axi_awburst = 'b0;
|
||||
assign m_axi_awcache = 'b0;
|
||||
assign m_axi_awlen = 'b0;
|
||||
assign m_axi_awlock = 'b0;
|
||||
assign m_axi_awid = 'b0;
|
||||
assign m_axi_awqos = 'b0;
|
||||
|
||||
assign m_axi_wlast = 1'b1;
|
||||
assign m_axi_wid = 'b0;
|
||||
|
||||
|
||||
assign m_axi_arsize = (C_AXI_DATA_WIDTH == 32) ? 3'd2 : 3'd3;
|
||||
assign m_axi_arburst = 'b0;
|
||||
assign m_axi_arcache = 'b0;
|
||||
assign m_axi_arlen = 'b0;
|
||||
assign m_axi_arlock = 'b0;
|
||||
assign m_axi_arid = 'b0;
|
||||
assign m_axi_arqos = 'b0;
|
||||
|
||||
assign m_axi_awregion = 'b0;
|
||||
assign m_axi_arregion = 'b0;
|
||||
|
||||
assign m_axi_awuser = 'b0;
|
||||
assign m_axi_wuser = 'b0;
|
||||
assign m_axi_aruser = 'b0;
|
||||
end
|
||||
endgenerate
|
||||
endmodule
|
||||
|
||||
`default_nettype wire
|
||||
|
||||
|
||||
+1263
File diff suppressed because it is too large
Load Diff
+129008
File diff suppressed because it is too large
Load Diff
Reference in New Issue
Block a user