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Altera_Forum
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14 years ago

Critical Warning: Timing requirements for slow timing model timing analysis were not

Hello, I'm trying out a Rs-232 Receiver and Transmitter code in Quartus || version 9.0 Build 235 06/17/2009 SJ full version, i ma getting a following critical warning during the compilation stage ...
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Altera_Forum
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14 years ago

Are you using classic timing or timequest. Timequest needs sdc.

Internal timing requires clock frequency but io then needs set delay constraints.