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Stay away from the XOR ... as I said oring it with a clock and then registering that with the same clock is fraught with possible issues; draw the timing diagram (carefully) and you will see why.
Assume your clock is running at twice the bit-rate, and every '1'or '0' at the input lasts for 2 clock periods, you can write a (very simple) state machine to generate the correct code depending on the input received.
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Thanks!
I changed the code following your suggestion. What I had in mind was treating the received input, output pattern forming register and output as 2-bit vectors,
and using simple IF statements.
However it doesn't seem to work. No pattern going on.
New code and sim shot attached below.
What am I doing wrong? :confused:
Thank you!
Honored Contributor
