tests/svinterfaces/svinterface1_tb.v

   1 `timescale 1ns/10ps
   2
   3 module svinterface1_tb;
   4
   5
   6   logic clk;
   7   logic rst;
   8   logic [21:0] outOther;
   9   logic [1:0] sig;
  10   logic [1:0] sig_out;
  11   logic flip;
  12   logic [15:0] passThrough;
  13   integer outfile;
  14
  15   TopModule u_dut (
  16     .clk(clk),
  17     .rst(rst),
  18     .outOther(outOther),
  19     .sig(sig),
  20     .flip(flip),
  21     .passThrough(passThrough),
  22     .sig_out(sig_out)
  23   );
  24
  25   initial begin
  26     clk = 0;
  27     while(1) begin
  28       clk = ~clk;
  29       #50;
  30     end
  31   end
  32
  33   initial begin
  34     outfile = $fopen("output.txt");
  35     rst = 1;
  36     sig = 0;
  37     flip = 0;
  38     @(posedge clk);
  39     #(2);
  40     rst = 0;
  41     @(posedge clk);
  42     for(int j=0;j<2;j++) begin
  43       for(int i=0;i<20;i++) begin
  44         #(2);
  45         flip = j;
  46         sig = i;
  47         @(posedge clk);
  48       end
  49     end
  50     $finish;
  51   end
  52
  53   always @(negedge clk) begin
  54     $fdisplay(outfile, "%d %d %d", outOther, sig_out, passThrough);
  55   end
  56
  57 endmodule