Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

DC FIFO mis behaving

Hello, I used the Quartus II v8.0SP1 Megawizard to create an asynchrounous (wrclk>rdclk) DCFIFO (for stratix II) with lookahead mode for reads. The problem that I am seeing is that on some occasi...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

A couple of things:

- IS your rdreq sync'd to the rdclk? there seems to be some discrepancy within the first attachment.

- Do you know if the data was written correctly? Reading the same data twice will not show any changes on the q signals.

Just some thoughts...