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Altera_Forum's avatar
Altera_Forum
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12 years ago

ModelSim Incorrect PLL output frequency

I have a PLL in my design that was generated using the MegaWizard tool. When I simulate my design in ModelSim, the output frequency of the PLL is not correct. I can modify the output frequency using ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
12 years ago

What period do you get for the input clk in Modelsim?

Are you sure, the correct clock is going to the Pll?

Did you try deleting the "work" folder generated by Modelsim? Sometimes it happens that the folder is not up-to-date.