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VESA DSC 基于FPGA DSC_Encoder IP仿真

news 来源：原创 2025/6/10 5:09:37

1：IP设置

2：仿真文件导入

3：仿真

//
// Created by Microsemi SmartDesign Thu Oct 10 12:36:11 2019
// Testbench Template
// This is a basic testbench that instantiates your design with basic
// clock and reset pins connected. If your design has special
// clock/reset or testbench driver requirements then you should
// copy this file and modify it.
//

///
// Company: <Name>
//
// File: test_bench.v
// File history:
// <Revision number>: <Date>: <Comments>
// <Revision number>: <Date>: <Comments>
// <Revision number>: <Date>: <Comments>
//
// Description:
//
// <Description here>
//
// Targeted device: <Family::PolarFire> <Die::MPF300T> <Package::FCG1152>
// Author: <Name>
//
///

`timescale 1ns/100ps

module test_bench;

parameter SYSCLK_PERIOD = 10;// 100MHZ
parameter H_RES = 432;
parameter V_RES = 240;
parameter g_DATAWIDTH = 8;

reg SYSCLK;
reg NSYSRESET;
reg [15:0] h_resolution=H_RES,v_resolution=V_RES,h_blanking=280,v_blanking=20;
reg [15:0] h_counter,v_counter,h_total,v_total;
reg h_active,v_active,data_valid,data_valid_dly,eof,eof_dly;
reg[g_DATAWIDTH : 0] Y_array[0:(H_RES*V_RES)-1];
reg[g_DATAWIDTH : 0] Cb_array[0:(H_RES*V_RES)-1];
reg[g_DATAWIDTH : 0] Cr_array[0:(H_RES*V_RES)-1];
reg[47 : 0] bitstream_quant_array[0:(H_RES*V_RES)-1];
reg[11 : 0] bitstream_array[0:(H_RES*V_RES)-1];
wire [g_DATAWIDTH - 1 : 0] Y_data,Cb_data,Cr_data;
wire [47 : 0] bitstream_quant;
wire bitstream_quant_valid;

reg [7 : 0] dsc_out_ref [0 : 262143];
reg [17 : 0] ref_addr;

reg [15 : 0] err;

reg pulse=0;
integer i;

//
// Reset Pulse
//
initial
begin
SYSCLK = 0;
NSYSRESET = 0;
#(SYSCLK_PERIOD * 10 )
NSYSRESET = 1'b1;
end

//
// Clock Driver
//
always @(SYSCLK)
#(SYSCLK_PERIOD / 2.0) SYSCLK <= !SYSCLK;

// initialize the hexadecimal reads from the file
initial $readmemh("img_in_luma.txt", Y_array);
initial $readmemh("img_in_cb.txt", Cb_array);
initial $readmemh("img_in_cr.txt", Cr_array);
initial $readmemh("dsc_out_ref.txt", dsc_out_ref);
assign Y_data    = Y_array[i][7:0];
assign Cb_data    = Cb_array[i][7:0];
assign Cr_data    = Cr_array[i][7:0];

initial
begin
h_total = h_resolution + h_blanking;
v_total = v_resolution + v_blanking;
end
always @(posedge SYSCLK or negedge NSYSRESET) begin
       if(~NSYSRESET) begin
       pulse    <= 0;
   end
   if(data_valid==1 && data_valid_dly==0) begin
       pulse = 1;
   end
   else begin
       pulse = pulse;
   end
end
always@(h_counter,h_resolution) begin
   if(h_counter >= (h_blanking+1)) begin
       h_active = 1;
   end
   else begin
       h_active = 0;
   end
end

always@(v_counter,v_resolution) begin
   if(v_counter >= (v_blanking+1)) begin
       v_active = 1;
   end
   else begin
       v_active = 0;
   end
end

always@(h_active,v_active) begin
data_valid = h_active && v_active;
end

always@(v_counter) begin
   if((v_counter == 15)&&(pulse==1)) begin
       eof = 1;
   end
   else begin
       eof = 0;
   end
end

// Horizontal counter
always @(posedge SYSCLK or negedge NSYSRESET) begin
   if(~NSYSRESET) begin
       h_counter    <= 0;
       i <= 0;
       data_valid_dly <= 0;
       eof_dly <= 0;
   end
   else begin
       data_valid_dly <= data_valid;
       eof_dly <= eof;
       if(h_counter < h_total) begin
           h_counter    <= h_counter + 1;
       end
       else begin
           h_counter    <= 0;
       end
       if(eof == 1) begin
           i <= 0;
       end
       else begin
           if (data_valid == 1) begin
               i = i + 1;
           end
       end
   end
end

// Vertical counter
always @(posedge SYSCLK or negedge NSYSRESET) begin
   if(~NSYSRESET) begin
       v_counter    <= 0;
   end
   else begin
       if(h_counter == h_total) begin
           if(v_counter < v_total) begin
               v_counter    <= v_counter + 1;
           end
           else begin
               v_counter    <= 0;
           end
       end
   end
end
//
// Instantiate Unit Under Test: data_gather
//
DSC_Encoder #(.G_DATA_WIDTH(g_DATAWIDTH)) DSC_Encoder(
// Inputs
.RESETN_I(NSYSRESET),
.PIX_CLK_I(SYSCLK),
   .DATA_Y_I(Y_data),
   .DATA_CB_I(Cb_data),
   .DATA_CR_I(Cr_data),
   .HRES_I(H_RES[15:0]),
   .VRES_I(V_RES[15:0]),
.DATA_VALID_I(data_valid),
   .FRAME_END_I(eof),
// Outputs
   .DATA_O(bitstream_quant),
.DATA_VALID_O(bitstream_quant_valid)

);

always @ (posedge SYSCLK, negedge NSYSRESET)begin
if(~NSYSRESET) begin
err <= 0;
ref_addr<= 0;
end
else if(eof==0 && eof_dly==1) begin
err <= 0;
ref_addr<= 0;
end
else if (bitstream_quant_valid)begin
ref_addr <= ref_addr + 6;
if(bitstream_quant != {dsc_out_ref[ref_addr],dsc_out_ref[ref_addr+1],dsc_out_ref[ref_addr+2],dsc_out_ref[ref_addr+3],
dsc_out_ref[ref_addr+4],dsc_out_ref[ref_addr+5]}) begin
err <= err + 1;
end
end
end

always @ (posedge SYSCLK, negedge NSYSRESET)begin
if(eof==1 && eof_dly==0) begin
$display(" ***********************************");
$display(" ***********************************");
$display(" H_RES:%d V_RES:%d",H_RES,V_RES);

if(err == 0) begin
$display(" DSC Compression Test Passed");
$display(" ***********************************");
$display(" ***********************************");
end
else begin
$display(" DSC Compression Test Failed");
$display(" ***********************************");
$display(" ***********************************");
end

$stop;

end