Forum Discussion

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

What is the impact of having illegal clock and unconstraint clock in the design

Anyone can tell me what is the impact of having illegal clock and unconstraint clock reported in the timequest? Worst come to worst, what will be the direct impact from the hardware performance? ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
12 years ago

What's it on? If it is something that you don't care about, then it doesn't matter. Although not ideal and maybe not "good design practice", I've seen plenty of designs with unconstrained/illegal clocks that work fine. If it needs to be constrained, then it should be constrained. W