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Schematic entry parameter as a function of instance name

yoyega

 Hi, I have a question concerning a schematic entry. Let's assume that I have defined a subcircuit that has pwl souce inside. This pwl source reads the point/time values from a file, and I want that the name of the file in the definition of the pwl source to be automatically set as a funcion of the name of the instance of the subcircuit. Does anyone knows how to do this?

Example:

subckt myckt
    I0 ( node1 node2 ) isource type=pwl file="a_function_of_the_name_of_the_instance_of_myckt"
    ...
end myckt

This way, if I have to instantiate several instances of myckt, each instance would automatically read point/time values from different files.

Thanks,
Pedro

Parents

  • Since the question was about spectre, I'd also say it's not directly possible in spectre - but you could use a similar approach as outlined by oldmouldy. I wondered about using the percent keywords in the filename, but looking at the available percent codes, none is the hierarchical path to the instance (search in cdnshelp for MMSIM71/72 say for "percent").

    Regards,

    Andrew.

Reply

  • Since the question was about spectre, I'd also say it's not directly possible in spectre - but you could use a similar approach as outlined by oldmouldy. I wondered about using the percent keywords in the filename, but looking at the available percent codes, none is the hierarchical path to the instance (search in cdnshelp for MMSIM71/72 say for "percent").

    Regards,

    Andrew.

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