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Altera_Forum
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14 years ago

Using ALTPLL and ALTCLKCTRL (Clock Muxing)

I have 3 clocks that I want to select which clock to use for a certain part of my subsystem. 2 clocks are generated from the internal PLL and one is a external clock source. Although the conce...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

Altera Software has acknowledged the problem and is investigating it. It is currently set to be fixed in 12.0. In the meantime, you have a workaround by using all 4 inputs and leaving the inclk0 input unconnected.