ADE refuses expression for transient stop

Discussion in 'Cadence' started by eda support guy, Sep 3, 2003.

  1. eda support guy

    eda support guy Guest

    Hi All,

    I have a 14bit frequency divider for which I compared pss and
    transient performance and results. The input frequency is defined by the
    variable Fin. In analog artist, I entered for transient stop time
    2.5/Fin/2**14 and this got refused, while it can perfectly be accepted
    by spectre.
    Does anyone know a fix for ADE or a workaround so that both schematcis
    and analyses can use design variable (short of working directly with
    netlist+ocean, which is what I did in the end. I mean a workaround in ADE.)

    ?
     
    eda support guy, Sep 3, 2003
    #1
  2. eda support guy

    Erik Wanta Guest

    No easy way around this that I can think of. You would have to
    disable the check in the callback that looks for a numeric stop time.
    Did you open a SR to have Cadence resolve design variables in the stop
    time specification?
     
    Erik Wanta, Sep 6, 2003
    #2
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