diff options
| -rw-r--r-- | usrp2/gpif/gpif_wr_tb.v | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/usrp2/gpif/gpif_wr_tb.v b/usrp2/gpif/gpif_wr_tb.v new file mode 100644 index 000000000..6cfa13744 --- /dev/null +++ b/usrp2/gpif/gpif_wr_tb.v @@ -0,0 +1,86 @@ + +module gpif_wr_tb(); + + reg sys_clk = 0; + reg sys_rst = 1; + reg gpif_clk = 0; + reg gpif_rst = 1; + + reg [15:0] gpif_data; + reg WR = 0, EP = 0; + + wire CF, DF; + + wire gpif_full_d, gpif_full_c; + wire [18:0] data_o, ctrl_o; + wire src_rdy, dst_rdy; + wire ctrl_src_rdy, ctrl_dst_rdy; + + assign ctrl_dst_rdy = 1; + assign dst_rdy = 1; + + initial $dumpfile("gpif_wr_tb.vcd"); + initial $dumpvars(0,gpif_wr_tb); + + initial #1000 gpif_rst = 0; + initial #1000 sys_rst = 0; + always #64 gpif_clk <= ~gpif_clk; + always #47.9 sys_clk <= ~sys_clk; + + gpif_wr gpif_write + (.gpif_clk(gpif_clk), .gpif_rst(gpif_rst), + .gpif_data(gpif_data), .gpif_wr(WR), .gpif_ep(EP), + .gpif_full_d(DF), .gpif_full_c(CF), + + .sys_clk(sys_clk), .sys_rst(sys_rst), + .data_o(data_o), .src_rdy_o(src_rdy), .dst_rdy_i(dst_rdy), + .ctrl_o(ctrl_o), .ctrl_src_rdy_o(ctrl_src_rdy), .ctrl_dst_rdy_i(ctrl_dst_rdy) ); + + always @(posedge sys_clk) + if(ctrl_src_rdy & ctrl_dst_rdy) + $display("CTRL: %x",ctrl_o); + + always @(posedge sys_clk) + if(src_rdy & dst_rdy) + begin + if(data_o[16]) + $display("<-------- DATA SOF--------->"); + $display("DATA: %x",data_o); + if(data_o[17]) + $display("<-------- DATA EOF--------->"); + end + + initial + begin + #10000; + repeat (1) + begin + WR <= 1; + gpif_data <= 150; // Length + @(posedge gpif_clk); + gpif_data <= 16'h00; + @(posedge gpif_clk); + repeat(254) + begin + gpif_data <= gpif_data + 1; + @(posedge gpif_clk); + end + WR <= 0; + repeat (20) + @(posedge gpif_clk); + WR <= 1; + gpif_data <= 16'hFF; + @(posedge gpif_clk); + repeat(254) + begin + gpif_data <= gpif_data - 1; + @(posedge gpif_clk); + end + + end + end // initial begin + + initial #100000 $finish; + + +endmodule // gpif_wr_tb |