From 0846857a7e8ac4bef959ecf09ee5fa3ffc24991f Mon Sep 17 00:00:00 2001
From: uvok
Date: Fri, 26 Dec 2025 18:13:54 +0100
Subject: Make sense to s2p test bench

---
 ser_to_par.tb.v | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

(limited to 'ser_to_par.tb.v')

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
 
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