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Do you remove "set_driving_cell" and "set_load" when taking over SDC file from FE?

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chris_li

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Do you remove "set_driving_cell" and "set_load" when taking over SDC file from FE?

Hi Guys, it is said back-end guys usually remove certain constraints like "set_driving_cell" and "set_load" from SDC file if any prior to loading it to PnR tool, really?
 

Re: Do you remove "set_driving_cell" and "set_load" when taking over SDC file from FE

no. You need to always to define a driving / load constraints for all pins connected to outside if you do not have any pad macros.
 

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