Forum Discussion
cjak
Occasional Contributor
Occasional ContributorConstraining an unclocked output?
Hi, I am trying to achieve timing closure, but have trouble constraining outputs that is not referenced to an external clock. Do I have to define a false path for each output?
Hi,
to declare all IO as asynchronous
set_false_path -from [all_inputs]
set_false_path -to [all_outputs]
sstrell
Super Contributor
Super ContributorIf they're completely asynchronous outputs, yes, you would false path them. You can use wildcards in your target for set_false_path if there are a lot of them.
KennyT_alteraSuper Contributor
Super Contributorsstrell is right, do you have further queries?
