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Altera_Forum's avatar
Altera_Forum
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12 years ago

Internal Error: Sub-system: VPR20KMAIN

Internal Error: Sub-system: VPR20KMAIN, File: /quartus/fitter/vpr20k/vpr_common/superblock_manager.c, Line: 410 Internal Error Processors in use: 2 Stack Trace: ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
12 years ago

One thing to test, is to delete the db and incremental_db directories in the synthesis directory. This will cause a full recompile of all modules, and I have seen it fix issues like this in the past. It's probably caused by a corrupt db file.

If that doesn't work, you'll need to open a support case, and they will require your project files to reproduce it.

If you can isolate the code that causes this issue, build a small test case and submit it with your support case.

Pete