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Simple yet tricky: How to instance an entire library?

eklikeroomys

Halo, 

 This may be real simple, but how can I instance the symbol views of an entire library into a schematic? I need a method simpler than having to individually instance all of the symbols from the library. I suppose I will have to do it that way if there is no other option.

I need to do this in order to generate a subcircuit netlist for Cadence ELC.

Thank you

  • Hi eklikeroomys

    You can try the following skillscript:

    procedure( CCSplaceSchInsts(myLib myTargetLib)
       let( (libID cv x y cvm)
          libID=ddGetObj(myLib)
          cv=dbOpenCellViewByType(myTargetLib "masterSchematic" "schematic" "schematic" "a")
          x=0
          y=0
          foreach(cell libID~>cells
             cvm=dbOpenCellViewByType(myLib cell~>name "symbol")
             schCreateInst(cv cvm cell~>name x:y "R0")
             dbClose(cvm)
             if(x<=1.0 then
                x=x+0.1
                y=y+0.1
             else
                x=0
             ) ;if
          ) ;foreach
          schCheck(cv)
          dbSave(cv)
          dbClose(cv)
       ) ;let
    ) ;procedure

    Save the above codes in a text file named "placeinst.il" and load it in ciw using:

    load "placeinst.il"

    Execute it in ciw using:

    CCSplaceSchInsts("yourLibName" "yourTargetLib")

    A schematic named "masterSchematic" will be created in the target library.

    Best regards
    Quek

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