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Altera_Forum
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19 years ago

Why is my PLL losing lock after i reconfigure it?

I was doing a PLL reconfiguration and changing only my M counter from 3 to 6. Every time I did it, my PLL would lose lock. Couldn't figure out why but after some digging I found the answer. Any ti...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
18 years ago

Hello MoneyBall ,

I had similar problem before

Are you using the ALTPLL_RECONFIG mega function ?

If yes , then you have to generate a mif file for the ALTPLL

And also you have to generate a mif file for the ALTPLL_RECONFIG

I missed the mif file for ALTPLL_RECONFIG

And the reconfiguration process failed

Regards ,

Samson