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Using variable for CDF Parameters in a netlist file

meredith

As a work around for pPar, is it possible to use a variable for a parameter in a CDL netlist file and pass the value of that variable down through hierarchy? 

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  • Andrew Beckett

    That suggests to me that the area is computed via a CDF callback, which would prevent the use of pPar() or indeed parameterisation of any type on the source width/length parameters. This is a limitation of your PDK - you should take it up with the provider of the PDK.

    If the area had been set in the CDF to be iPar("width")*iPar("length") then it would have worked... but because it is computed via a CDF callback, that's only triggered when  you update the form.

    See The Dangers of CDF Callbacks.

    Regards,

    Andrew.

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  • Andrew Beckett

    That suggests to me that the area is computed via a CDF callback, which would prevent the use of pPar() or indeed parameterisation of any type on the source width/length parameters. This is a limitation of your PDK - you should take it up with the provider of the PDK.

    If the area had been set in the CDF to be iPar("width")*iPar("length") then it would have worked... but because it is computed via a CDF callback, that's only triggered when  you update the form.

    See The Dangers of CDF Callbacks.

    Regards,

    Andrew.

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