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Altera_Forum
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14 years ago

Cyclone II Lock Up after 4 seconds

I have a Cyclone 2 EP2C5 design that will run for 5 seconds before the entire part freezes. Four out of five boards operated correctly after removing reset synchronization for the the 20MHz domain. H...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

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Why are using the DEV_CLR pin for the reset ?

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I understand, that DEV_CLR is used as a regular pin.

I think, the problem is either hardware related, e.g. supply voltage drop, or must be searched in the logic design.