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Altera_Forum's avatar
Altera_Forum
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16 years ago

Quartus II v9.1 internal error

When I compiled a project, an internal error was found, just like below: Internal Error: Sub-system: CUT, File: /quartus/db/cut/cut_pll_util.cpp, Line: 7954 Unexpected PLL type Stack Trace...
Altera_Forum's avatar
Altera_Forum
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16 years ago

You may want to file a support request, because even a faulty PLL configuration (assuming the problem is actually related to PLL) shouldn't cause an internal error.

In the meantime, you should try to find out, if something in your PLL setup is wrong or at least unexpected by Quartus.