p2s: Check if bits are correct

1 files changed, 11 insertions, 1 deletions

diff --git a/par_to_ser.tb.v b/par_to_ser.tb.v
index a60c13b..4242d37 100644
--- a/par_to_ser.tb.v
+++ b/par_to_ser.tb.v
@@ -37,6 +37,8 @@ end
 
 always #10 clk_i = ~clk_i;
 
+integer sollbit = 1'b0;
+
 initial begin
   #37
 
@@ -49,8 +51,16 @@ initial begin
     #20
     data_valid_i <= 1'b0;
 
+    for (integer j = 0; j < 8; j++) begin
+      sollbit = (i >> j) & 1;
+      assert(dat_o == sollbit);
+
+      #20
+      ;
+    end
+
     // let module do its work
-    #200
+    #40
     ;
 
   end