From fe28e261e63a6dfe0936e8cb01c009cfc4d7525d Mon Sep 17 00:00:00 2001
From: Konstantin Pavlov <pavlovconst@gmail.com>
Date: Sat, 25 Dec 2021 22:52:24 +0300
Subject: [PATCH] Added clock jitter

---
 main_tb.sv | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/main_tb.sv b/main_tb.sv
index 56e9eb9..7486917 100644
--- a/main_tb.sv
+++ b/main_tb.sv
@@ -21,11 +21,17 @@ initial begin
 end
 
 // external device "asynchronous" clock
-logic clk33;
+logic clk33a;
 initial begin
-  #0 clk33 = 1'b0;
+  #0 clk33a = 1'b0;
   forever
-    #15.151 clk33 = ~clk33;
+    #7 clk33a = ~clk33a;
+end
+
+logic clk33;
+//assign clk33 = clk33a;
+always @(*) begin
+  clk33 = #($urandom_range(0, 2000)*10ps) clk33a;
 end
 
 logic rst;