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Altera_Forum
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19 years ago

Cyclone III FIFO problem

Hi, I have a problem with a Cyclone III design which uses two 512byte Fifos. The problem is that the design is working fine, and after changing sth. e.g. adding some signals to signal tab, t...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
19 years ago

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maybe because the timings for CYCIII in Quartus are preliminary (I use 7.1 SP1)

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I can't tell whether you're wondering if the timing is preliminary or if you already know it and just wonder if that's related to the problem. If the former, look for a Fitter compilation message like the one below, which I got with QII 7.1 SP1.

Warning: Timing characteristics of device EP3C25E144C7 are preliminary