Altera_Forum
Honored Contributor
10 years agocan cyclone V pll be feeded with global I/O pin clock
Hi
Sadly i got clock routed to non dedicated pin. I want to use pll in cyclone V device to get desired frequencies from it. Then i connect clock to pll i got the following error: The PLL reference clock input pin<pinname>was not placed in a dedicated input pin that can reach fractional PLL <PLL name> I added altctrlbuf but the error stays. Is it then possible to feed pll from non dedicated clock pin ? I read the documentation and I found that there is only requirement for global clock line.