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How to size transistors using SKILL

KrishnaPraveen

Hi!

 I wanted to know how one can size a transistor schematic using SKILL.

 I am using these commands but I want to know how I can size the transistors, I read the CDSDOC but could not figure out:

windowID = dbOpenCellViewByType("test_schematic" "skillSchematic" "schematic" "schematic" "w")

masterID = dbOpenCellViewByType("analogLib" "nmos4" "symbol")

dbCreateInst(windowID masterID "I0" 1:1 "R0" 1)

These commands creates an nmos in the schematic view but I want to be able to size it.

 I tried doing this which I read in some code (though it does not make sense to me) :

windowID~>w="10u"

windowID~>l="130u"

 I think I am doing something fundamentally wrong.

I want to be able to size the transistors as I place them in the shematic.

 Any help is highly appreciated.

 

Thank You.

Krishna

 

  

Parents

  • This doesn't make any sense (by the way "cdfId = cdfGetInstCDF(instID)" is not a callback, just to correct your terminology). The best thing would probably to contact Cadence Customer Support so that somebody can take a look at precisely what the problem is - I'm sure there is some aspect of the issue here you're not capturing correctly or clearly in order for me to diagnose it. Having one of the support team (of which I'm part of, in Europe) have a look at your actual data would really help here.

    Regards,

    Andrew.

Reply

  • This doesn't make any sense (by the way "cdfId = cdfGetInstCDF(instID)" is not a callback, just to correct your terminology). The best thing would probably to contact Cadence Customer Support so that somebody can take a look at precisely what the problem is - I'm sure there is some aspect of the issue here you're not capturing correctly or clearly in order for me to diagnose it. Having one of the support team (of which I'm part of, in Europe) have a look at your actual data would really help here.

    Regards,

    Andrew.

Children
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