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How to instantiate a pcell in another pcell?

phenixgj

 Assume I have alread a pcell library and I would like to create another pcell, which has an instant object of the first pcell.

Could anyone give me a simple example?

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  • Andrew Beckett

    The problem is this line in the code:

    cellview = dbOpenCellViewByType("test" "Pcell_test" "layout" "maskLayout" "a")

    pcDefinePCell creates a parameterized cell within the test/Pcell_test/layout view, and the pcell code is responsible for building each subMaster. In your case you are overwriting the pcell within the pcell code, so it's bound to break.

    You should just use:

    cellview=pcCellView

    or better still just use pcCellView whereever you need the cellView to write to. The pcell code automatically has this variable set as the cellView you're building the subMaster in. There's no need to open anything in append mode - pcell subMasters are built in memory only.

    Regards,

    Andrew.

Reply
  • Andrew Beckett

    The problem is this line in the code:

    cellview = dbOpenCellViewByType("test" "Pcell_test" "layout" "maskLayout" "a")

    pcDefinePCell creates a parameterized cell within the test/Pcell_test/layout view, and the pcell code is responsible for building each subMaster. In your case you are overwriting the pcell within the pcell code, so it's bound to break.

    You should just use:

    cellview=pcCellView

    or better still just use pcCellView whereever you need the cellView to write to. The pcell code automatically has this variable set as the cellView you're building the subMaster in. There's no need to open anything in append mode - pcell subMasters are built in memory only.

    Regards,

    Andrew.

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