how to read Violation report in prime time

[veenashree89]

hi..
i am new to sta..this is the first time i am runnung tcl script in primetime for prelayout ..i have got few violations in violation report.
it is as below

max_delay/setup ('V_SYSCLK' group)

Endpoint Slack
-----------------------------------------------------------------
oTmrTopRdData[7] -0.38 (VIOLATED)
oTmrTopRdData[5] -0.38 (VIOLATED)
oTmrTopRdData[6] -0.38 (VIOLATED)
oTmrTopRdData[13] -0.38 (VIOLATED)

max_transition

Required Actual
Pin Transition Transition Slack
-----------------------------------------------------------------
U47/ZN 0.30 0.48 -0.18 (VIOLATED)
oTmrTopWdRst 0.30 0.48 -0.18 (VIOLATED)
U49/ZN 0.30 0.48 -0.18 (VIOLATED)
oTmrTopIntr


how to fix it and how to know ,where those instants are present (oTmrTopdData[7] )
please help me..

 

[rca]

It seems to be at the top level but it is your design.

 

[shelby]

Those look like outputs. Do a report_timing -to oTmrTopdData[7] and you will see the path.

 

[senmerida]

Maybe your design is not constrained properly. Before PT, take your design to DC once more and constrain it . Give some random clock and check if the timing has been met. (report_timing) . If the timing is not met, then try to give some more constraints like clock latency and uncertainties and check the timing again.
Maybe there is a design error , so better o simulate it before synthesis.