git.gag.com Git - debian/gnuradio/blob - usrp2/fpga/control_lib/sd_spi_tb.v

   1
   2
   3 module sd_spi_tb;
   4
   5    reg clk = 0;
   6    always #5 clk = ~clk;
   7    reg rst = 1;
   8    initial #32 rst = 0;
   9
  10    wire sd_clk, sd_mosi, sd_miso;
  11    wire [7:0] clk_div = 12;
  12    wire [7:0] send_dat = 23;
  13    wire [7:0] rcv_dat;
  14
  15    wire       ready;
  16    reg        go = 0;
  17    initial
  18      begin
  19         repeat (100)
  20           @(posedge clk);
  21         go <= 1;
  22         @(posedge clk);
  23         go <= 0;
  24      end
  25
  26    sd_spi dut(.clk(clk),.rst(rst),
  27               .sd_clk(sd_clk),.sd_mosi(sd_mosi),.sd_miso(sd_miso),
  28               .clk_div(clk_div),.send_dat(send_dat),.rcv_dat(rcv_dat),
  29               .go(go),.ready(ready) );
  30
  31    initial
  32      begin
  33         $dumpfile("sd_spi_tb.vcd");
  34         $dumpvars(0,sd_spi_tb);
  35      end
  36
  37    initial
  38      #10000 $finish();
  39
  40 endmodule // sd_spi_tb