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Altera_Forum
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8 years ago

Can I produce 4 MHz from a 10 MHz input?

Hi All, I have a Cyclone IV board. Can I produce 4 MHz from a 10 MHz input? I am totally new to this field. I can produce 4 MHz using the 50 MHz on-board clock using PLL. But it seems GPIO ca...
Altera_Forum's avatar
Altera_Forum
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8 years ago

It's true that PLLs have dedicated clock inputs, these give the best performance, but I was able to assign a GPIO as a PLL input on my Cyclone V (not Cyclone IV) device using the global_clock buffer IP. Maybe this is feasible on the Cyclone IV as well?