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Honored Contributor
Honored ContributorQuestion about clock + PLL
Hi, probably that is going to be a very noob question but... I am using PLL on a Clyclone II, and i was clocking some blocks directly from my 50Mhz oscilator input and some other blocks from a...
Altera_ForumHonored Contributor
Honored ContributorThe warning was: Critical Warning: Timing requirements for slow timing model timing analysis were not met. See Report window for details.
But if 100Mhz is too fast for my design, why the critical warning and all other time warning just disapeared after i used the 1:1 output of PLL instead of using the input directly? Actualy it does not generate a warning even at 200Mhz.... (the 200Mhz is just used for sample purposes on a UART receiver). And that 200Mhz had the same use of the 100Mhz one... And the paths that were generating the warning were the 50Mhz ones and not 100Mhz... I think i was kind confusing at my description.. was that understandable? Thank you!
