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Altera_Forum
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8 years ago

Cyclone V Clock Not Toggling

Device: 5CGTFD9E5F35C7 Quartus Version 14.1 I am currently having problems with the on-board oscillator (CLK5p(U31)) not toggling when used as the clock source in Signal Tap(e.g. the 'waiting...
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Altera_Forum
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8 years ago

What kind of external clock are you providing to your device and on what pin(s) is it connected?

Your comment about 'on-board oscillator CLK5P not toggling' implies to me you think you don't need an external clock source.

The Cyclone V does not have an internal clock oscillator so you need to provide an external signal (typically 50MHz or 125MHz).