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... it generates a WARNING telling me to use a dedicated PLL output pin.
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If I recall correctly, the Quartus warning is that using a non-dedicated PLL output may result in more jitter. Your design will likely still work correctly.
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How do I connect a dedicated PLL output pin to R25?
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You can't. The PLL output pins needed to be assigned when the PCB was designed.
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How do I find what the PLL output pin(s) are being used?
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After synthesizing the design, open the pin planner (Assignments->Pin Planner).
Look for the PLL output pins in that view. You can also download the pinout PDF for the specific Cyclone 2 package you are using, and find the PLL output pins in that PDF, and then look at the Pin Planner view to see where they are located.
Cheers,
Dave
Honored Contributor
