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I think we are missing one more reason for the (X) propagation in designs, which is (SET-UP) and (HOLD) violation. I was reading an article which mentions cause of (X) propagation while doing (GLS - Gate Level Simulation) is timing violations.
---------- Post added at 14:27 ---------- Previous...
Hi All,
What will be a digital circuit for a 3-Bit Verilog Counter.
always @(posedge clk)
begin
if (reset == 1'b1)
out <= 3'b000;
else
out <= out+1'b1;
end
Suppose in waveform I am seeing X and Z propagating for a particular signal.
What should be my approach towards debugging for the X and Z propagation.
---------- Post added at 17:13 ---------- Previous post was at 17:12 ----------
means X or Z propagation
Hi All,
I have question.
If there is a transition from
z --> 1, 0 --> 1, x --> 1, z --> 0, 1 --> 0, x --> 0
What all the transitions will "$rise" and "$fell" will detect.
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