Subversion Repositories rs_encoder_decoder

`timescale 1ns / 10 ps

module GF8Fir8t_testbench;

  reg clk_i,rst_i;

  reg en_i;

  reg [7:0]  fir_i;

  reg sel_i;

  wire [7:0]  fir_o;

  reg [71:0] coeff_i,shift_reg_i;

  reg [126*7:0]  path,input_file,output_file;

  integer   fd_in, fd_out;

GF8Fir8t DUT(

  .clk_i(clk_i),.rst_i(rst_i),

  .en_i(en_i), // Gallios Field FIR Filter enable 1

  .fir_i(fir_i), // Gallios Field FIR Filter input 1

  .sel_i(sel_i), // Gallios Field FIR Filter input 1

  .shift_reg_i(shift_reg_i), // Gallios Field FIR Coefficient input 1

  .coeff_i(coeff_i), // Gallios Field FIR Coefficient input 1

  .fir_o(fir_o)   // Gallios Field FIR out

  );

always

#5 clk_i = !clk_i;

  initial begin

    path = "./";

    input_file = "input_file_GF8Fir.dat";

    output_file = "output_file_GF8Fir.dat";

    fd_in = $fopen(input_file,"r");

    fd_out = $fopen(output_file,"w");

    coeff_i[7:0] = 8'h0;

    shift_reg_i[7:0] = 8'h8;

    coeff_i[15:8] = 8'h1;

    shift_reg_i[15:8] = 8'h7;

    coeff_i[23:16] = 8'h2;

    shift_reg_i[23:16] = 8'h6;

    coeff_i[31:24] = 8'h3;

    shift_reg_i[31:24] = 8'h5;

    coeff_i[39:32] = 8'h4;

    shift_reg_i[39:32] = 8'h4;

    coeff_i[47:40] = 8'h5;

    shift_reg_i[47:40] = 8'h3;

    coeff_i[55:48] = 8'h6;

    shift_reg_i[55:48] = 8'h2;

    coeff_i[63:56] = 8'h7;

    shift_reg_i[63:56] = 8'h1;

    coeff_i[71:64] = 8'h8;

    shift_reg_i[71:64] = 8'h0;

    clk_i = 0;

    rst_i = 1;

    en_i = 0;

    sel_i = 0;

    #10 rst_i = 0;

   while(!$feof(fd_in))

     begin

       @(negedge clk_i);

         $fscanf(fd_in,"%d\n",fir_i);

         $fwrite(fd_out,"%d\n",fir_o);

         en_i = 1;

     end

  end // initial begin

endmodule