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symbol PCELL extraction issue.

fishbulb15
I have created a symbol, schematic and layout pcell. Everything seemed to be working correctly until I wanted to start LVS-ing the the pcell. I first ran into an issue where it required that my schematic be extracted since last edit. So I followed the instructions here: ___Schematic PCell: Schematic cellviews modified since last extracted___ support.cadence.com/.../ ------->Which seemed to solve that issue. But now I am getting "ERROR: Netlister: symbol of instance modified, please re-extract cell ''." Is there something like : dbCreateProp(pcCellView "schGeometryLastRecorded" "time" getCurrentTime() ) dbCreateProp(pcCellView "lastSchematicExtraction" "time" getCurrentTime() ) to add to the symbol pcell?? How can I get this to work.. Thank you, Mitchell Cohen
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  • Andrew Beckett

    In IC5141 it's a matter of setting cv~>instancesLastChanged to be an old date - so it appears that the symbol hasn't changed. That said, I've not normally had to do this with a pcell - so I'm a bit surprised...

    You'd do:

    dbDisableCellViewCounter(pcCellView)
    dbReplaceProp(cv "instancesLastChanged" 'time "Jun 27 18:00:00 1999")

    or similar. 

    In IC615, you'd just put dbDisableCellViewCounter(pcCellView) at the beginning of the pcell code.

    Regards,

    Andrew.

Reply
  • Andrew Beckett

    In IC5141 it's a matter of setting cv~>instancesLastChanged to be an old date - so it appears that the symbol hasn't changed. That said, I've not normally had to do this with a pcell - so I'm a bit surprised...

    You'd do:

    dbDisableCellViewCounter(pcCellView)
    dbReplaceProp(cv "instancesLastChanged" 'time "Jun 27 18:00:00 1999")

    or similar. 

    In IC615, you'd just put dbDisableCellViewCounter(pcCellView) at the beginning of the pcell code.

    Regards,

    Andrew.

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