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LEC CDC Structural Checks

timmynolan

Hi,

 I've recently been looking at running CDC checks on our designs using various tools and so on.

With LEC I have got everything set up and the design succesfully loaded and domains found. I run a cdc structural  check and everything seems to go ok. Some convergence paths are found and under the 'predefined' tab paths a grouped into their respective schemes. My question really is. How is the 'predefined' tab different from the 'structural' one? I can have no fails in the 'predefined' tab but in the 'structural' one all the paths have the '?' symbol meaning that they havent been validated yet. Is this tab just for cutom defined synch rules? If that is the case why wont the tool let me add functional checks if all the 'Predefined' CDC checks pass?

Thanks,

Tim 

  • hi,

    u can add the fuctional checks only if all structural checks are validated..? symbol denotes that they havent validated yet..to validate the structural check,use add option in cdc manager add-->cdc check--->structural...after adding this u need to validate it using validate command..

    there are two types of sync rules one s predefined and another one s user defined...predefined rules are based on categorization flow..u can add the user defined sync rule using setup option in cdc manager..setup-->synchronization rule--->mux/dff/synch module..

     jananee

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