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Altera_Forum's avatar
Altera_Forum
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16 years ago

How to remove timing check of synchronizer?

I used synchronizer chain to pass signal from different clock domain. When I run a timing simulation, the synchronizers generate X status because of setup and hold violations. Then I realized setu...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

You can use the Quartus x_on_violation_option logic option, but there is no way to automatically disable timing check for all synchronizers.

Note that top experts here would probably advise in most cases, to use functional simulation only. And use static timing verification instead of timing gate-level simulation.