tests/svinterfaces/svinterface_at_top_tb.v

   1 `timescale 1ns/10ps
   2
   3 module svinterface_at_top_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   logic interfaceInstanceAtTop_setting;
  16   logic [2:0] interfaceInstanceAtTop_other_setting;
  17   logic [1:0] interfaceInstanceAtTop_mysig_out;
  18   logic [15:0] interfaceInstanceAtTop_passThrough;
  19
  20
  21   TopModule u_dut (
  22     .clk(clk),
  23     .rst(rst),
  24     .outOther(outOther),
  25     .sig(sig),
  26     .flip(flip),
  27     .passThrough(passThrough),
  28     .interfaceInstanceAtTop_setting(interfaceInstanceAtTop_setting),
  29     .interfaceInstanceAtTop_other_setting(interfaceInstanceAtTop_other_setting),
  30     .interfaceInstanceAtTop_mysig_out(interfaceInstanceAtTop_mysig_out),
  31     .interfaceInstanceAtTop_passThrough(interfaceInstanceAtTop_passThrough),
  32     .sig_out(sig_out)
  33   );
  34
  35   initial begin
  36     clk = 0;
  37     while(1) begin
  38       clk = ~clk;
  39       #50;
  40     end
  41   end
  42
  43   initial begin
  44     outfile = $fopen("output.txt");
  45     rst = 1;
  46     interfaceInstanceAtTop_setting = 0;
  47     sig = 0;
  48     flip = 0;
  49     @(posedge clk);
  50     #(2);
  51     rst = 0;
  52     @(posedge clk);
  53     for(int j=0;j<2;j++) begin
  54       for(int i=0;i<20;i++) begin
  55         #(2);
  56         flip = j;
  57         sig = i;
  58         @(posedge clk);
  59       end
  60     end
  61     $finish;
  62   end
  63
  64   always @(negedge clk) begin
  65     $fdisplay(outfile, "%d %d %d %d", outOther, sig_out, passThrough, interfaceInstanceAtTop_mysig_out);
  66   end
  67
  68 endmodule