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Altera_Forum's avatar
Altera_Forum
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15 years ago

clock domain crossing between two PLLs (cyclone III)

hello! I use two PLLs in my design. One is reconfigurable and the the other one is not. If I use both PLLs to control one single circuit I always get trouble. (Example: The reconfigurable PLL gene...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

Many thanks for your reply! Unfortunately its not possible to use double flops for me (at least not everywhere I've got crossing clock domains) because I have to control very fast processes.

But with that knowledge I can try to avoid such problems by taking care in the design process.