insert scan chains in the circuits-DC problems_compile scan

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lund728

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DC problems_compile scan

Hello, I am newly user for DC tool.
I try to insert scan chains in the circuits.
following the guide,
1, set_scan_configuration -style multiplexed_flip_flop
2, compile -scan
then I get information,
1choosing a test methodology will restrict the optimization of sequential cells.
2evaluating Designware library utilization.

how can I solve it?



thanks@@
 

DC problems_compile scan

Both these messages are perfectly normal and expected and should just be ignored.
 

DC problems_compile scan

yes, you are right!
sometimes just skip.
 

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