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Altera_Forum's avatar
Altera_Forum
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14 years ago

input clock pin to 4 PLLs in a way Quartus is happy with

I am not entirely sure how to get round this. I have one input clock pin (my main system clock) and would like to route it to all four corner PLLs in my Arria 2 device. The Arria device I am using ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

I agree additional risk is not something I want to take on.

Do you mean you recommend driving the external oscillator into two different dedicated clock inputs to satisfy Quartus and avoid the internal jitter routing issues :confused:?

I have drawn the proposal in the picture attached.

Thanks for your answers. I do appreciate it :).