icfb won't netlist default component parameters

Discussion in 'Cadence' started by jlam1976, Feb 23, 2009.

  1. jlam1976

    jlam1976 Guest

    Hi all,

    Does anybody know why this happens?

    For example, the default value for caps in analogLib shows 1p, but
    in the spectre netlist generated, the cap line doesn't have the
    value. It's just "c1 n1 n2 cap". I need to explicitly enter a value
    to have that show up in the netlist. Anyway to make the default
    parameters show up in the netlist also?

    Thanks.

    J
     
    jlam1976, Feb 23, 2009
    #1
  2. Usually this is because you didn't do:

    setenv CDS_Netlisting_Mode Analog

    before starting DFII. If you run "icms" it sets this automatically, but if
    running icfb it doesn't. This is because the spectre netlister can be used for
    both "Digital" (i.e. NLP-based netlisting) or "Analog" (i.e. CDF-based netlisting).

    Regards,

    Andrew.
     
    Andrew Beckett, Feb 24, 2009
    #2
  3. jlam1976

    J Guest

    Thank you so much! It worked! BTW, what's the difference between
    icms and icfb? I was told to run icfb. Anyways, maybe I can look
    that up, but thank you very much for your help!! :)
     
    J, Feb 24, 2009
    #3
  4. J wrote, on 02/24/09 17:50:
    icms is a smaller executable that doesn't contain layout capabilities - so it's
    fine if you're doing schematic entry and simulation. It stands for "IC Mixed
    Signal" as opposed to "IC Front to Back".

    In IC61 we're cutting down the executables, to mainly be "virtuoso" (that's the
    eventual goal anyway) - the miriad of different executable names was confusing,
    created more testing, and most users used "icfb" anyway...

    Andrew.
     
    Andrew Beckett, Feb 25, 2009
    #4
Ask a Question

Want to reply to this thread or ask your own question?

You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.