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Altera_Forum
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16 years ago

Internal Error: Sub-system: VPR20KMAIN, File: /quartus/fitter/vpr20k/vpr_common/place

Ahhh! I'm getting this error during the fitter register retiming step every time I compile! I saw a post on Altera's KnowledgeBase regarding this error (http://www.altera.com/support/kdb/soluti...
Altera_Forum's avatar
Altera_Forum
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16 years ago

For anyone running into this, the culprit is enabling "Perform register retiming". If this is turned on along with apparently more than one root LogicLock region the aforementioned error will crash the fitter.

Peter