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Altera_Forum
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12 years ago

Dynamic clock selection in Cyclone 4E

Does anybody know if it is possible to dynamically switch between 4 clocks of 1 PLL in a Cyclone IV E device? I tried several options, cascading clock control blocks, used 2 PLLs, each generating ...
Altera_Forum's avatar
Altera_Forum
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12 years ago

In my reading of the Cyclone IV device handbook, dynamic clock selection is possible between two PLL outputs, not four. But I never used it myself.

Might it be possible to achieve the intended clock switching with PLL reconfiguration?