Forum Discussion
Altera_Forum
Honored Contributor
15 years ago --- Quote Start --- You are absolutely right. The PLL generated clock directly drives an output pin, but I just don't understand, why it should drive an output pin via the dedicated routing resource? --- Quote End --- The warning explains the reason. If you use non-dedicated PLL outputs, then jitter performance might suffer a bit. --- Quote Start --- And as far as I know, the software globally recognize the PLL generated clock as global clock, so it should use the global routing resource, right? --- Quote End --- Once again, global clock is an internal routing issue, it has no relation to the PLL dedicated external output. --- Quote Start --- Does it have anything to do with the output pin assignment? How can I correct it? --- Quote End --- Yes, of course it is the output pin assignment. No big deal if you can't change it. Most people ignore that warning.