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How to associate an extracted netlist of a subckt to the symbol view in schematic editor.

RFStuff

Dear All,

I am using Calibre ( mentor Graphics). It creates the spectre Netlist and calibre view for PEX.

However, claibre view creation takes a lot of time unlike its spectre Netlist.

The spectre netlist it creates in a file like xyz.pex.netlist.

The format is as below:-

 

simulator lang=spectre
include "SUBCKT_BLOCK.pex.netlist.pex"
subckt SUBCKT_BLOCK (  DVDD DVSS A B C D E \
 F )

        .................................

............................................

............the sub ckt netlist body .............

........................................................

include "SUBCKT_BLOCK.pex.netlist.DIV_BY_4_WITH_GRID.pxi"
//
ends SUBCKT_BLOCK
//
//

 

Is it possible to associate this netlist to the corresponding subckt symbol used in the bigger ckt block the schematic editor so that the created netlist will have the above sub-ckt netlist in the output netlist of the bigger ckt block ?

Kind Regards,

 

Parents

  • You could open the symbol, and do:

    artGenerateHierSymbolCDF(geGetEditCellView())

    and then you'd have to manipulate the order to match the external netlist.

    You could always write some SKILL to parse the subckt header and then do some pattern matching to the terminal names in the symbol and do this yourself...

    With QRC you can also specify the pin order that you want when doing the extraction; not sure if other extraction tools provide this (you'd have to ask the vendor) - that way you can generate the order in the CDF using the above SKILL function, and then give this order to your extraction tool.

    Kind Regards,

    Andrew.

Reply

  • You could open the symbol, and do:

    artGenerateHierSymbolCDF(geGetEditCellView())

    and then you'd have to manipulate the order to match the external netlist.

    You could always write some SKILL to parse the subckt header and then do some pattern matching to the terminal names in the symbol and do this yourself...

    With QRC you can also specify the pin order that you want when doing the extraction; not sure if other extraction tools provide this (you'd have to ask the vendor) - that way you can generate the order in the CDF using the above SKILL function, and then give this order to your extraction tool.

    Kind Regards,

    Andrew.

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