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check the instance symbol change in schematic

lzyc

Andrew (or anybody),

If an instance symbol is modified after the schematic last modification, cadence will give you warning in CIW when you open the schematic. I want to write a skill code to check the schematic for the same purpose?  Initially I thougt cadence only compare the timeStamp of the schematic and the instance symbol. But I found cadence does more than that. They can capture the symbol change even if I rollback to a old sybmol version (with earlier timestamp). Can you tell me how Cadence capture the instance symbol change when you open the schematic?

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  • lzyc

    Ted,

    Thank you for your reply. I tried dbIsConnCurrent. It checks different thing. My current schematic has one instance symbol changed. When I open it ready-only. CIW shows a warning said symbol changed after last schematic save. But  dbIsConnCurrent still give me 't'.  I also checked the instHeaders for glues, but have not found anything related. 

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  • lzyc

    Ted,

    Thank you for your reply. I tried dbIsConnCurrent. It checks different thing. My current schematic has one instance symbol changed. When I open it ready-only. CIW shows a warning said symbol changed after last schematic save. But  dbIsConnCurrent still give me 't'.  I also checked the instHeaders for glues, but have not found anything related. 

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