Forum Discussion

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

PLL error - help please

Hi, I am using EP3C25F256. I need to synchronize an internal 30MHz clock with an external 10MHz clock. In order to do so I'm using a PLL which will multiply the 10MHz input by 3 thus resulting wit...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

Sounds like you're not using an appropriate dedicated clock input. Check the clock wiring schematic for the EP3 and if you still think you're doing the right thing, try nailing the PLL that you think you're using down using a placement assignment.