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Altera_Forum's avatar
Altera_Forum
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16 years ago

Problem in simulation o/p of circular buffer

hello all, i tried to impelement a circular buffer in quartus II Code is compiled successfully,,but i am undable to view o/p in waveforms. Hers the code.. ---FIFO buffer Library iee...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

"XX" ususally occurs when you are driving 2 signals on the same output, or being a bus, it could be that the bus is unitialised (ie - you're switching to something thats uninitialised.

To post the waveform, take a screenshot and make a jpg of it and post it here.

It might be good to post the code you're working with too - the UUT AND the testbench.