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-rw-r--r--ser_to_par.tb.v15
1 files changed, 14 insertions, 1 deletions
diff --git a/ser_to_par.tb.v b/ser_to_par.tb.v
index c86edfa..a613c2e 100644
--- a/ser_to_par.tb.v
+++ b/ser_to_par.tb.v
@@ -29,7 +29,20 @@ end
always #10 clk_i = ~clk_i;
initial begin
- #400
+ #37
+
+ // start data
+ dat_i <= 1'b0;
+ #20
+
+ // - 1 clk cycle, 1 bit later:
+ dat_i <= 1'b1;
+
+ #140
+ // - 7 clk cycle, 7 bits later:
+ assert (dat_o == 8'hfe)
+
+ #20
$finish();
end