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Altera_Forum's avatar
Altera_Forum
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16 years ago

Quartus Fitter messages

I get the following fitter message from quartusII 7.1 Info: Ignoring invalid fast I/O register assignments But there is no further information. How can I get the information which regi...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

ASYNC SRAM is probably a good place, as you're right, it's a PITA to constrain. (In reality, just guardbanding it with constraints is usually fine, just something that works. If you had really tight timing, then you probably would want to spend the time to get them right...)