Forum Discussion
Altera_Forum
Honored Contributor
Honored ContributorPLL clock switchover with automatic derivation of PLL clocks is not working
Hi all, I'm using a Cyclone V and need to switch between two input clocks. The clocks have the same parameters. I adhered to the timequest cookbook which says the following: #create a 10...
Altera_ForumHonored Contributor
Honored ContributorHmm. Have you created your base clock constraints correctly? What happens if you comment out your base clocks and use the -create_base_clocks option with derive_pll_clocks?
