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What is timing arc when uses primetime.
Hi guys,
Since I met an error when I annotate rising delay from one cell input pin to output pin. But i got the error : no timing arc between such two pins.
The error is :
Error: No timing arc in cell 'u3_control/U57(HS45_LS_NOR3X2)' from pin 'B' to...
After I synthesized in design compiler, I write_milkyway to store my design.
Then I read_milkyway in Primetime, after read milkyway, when I report_timing, I should get the timing report show all the pints in critical path are annotated, but I didn't get it, all the points don't have * to show...
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