lxRemoveDevice - similar CDF property or other ideas??

Discussion in 'Cadence' started by Cody, Oct 26, 2006.

  1. Cody

    Cody Guest

    I'm at a loss for ideas. I have some analog lib resistors in my
    schematic that I want shorted out in netlists and layout. " lvsIgnore
    " and " lxRemoveDevice " are perfect, BUT.... I'm stuck using version
    4.4.5 and lxRemoveDevice didn't exist until 4.4.6. Upgrading is not an
    option is this particular case (Yes, I know 4.4.5 is no longer
    supported, and yes we have 5.1.41). We are locked to this version due
    to third parties.

    Anyway, anyone have an idea how I can get these resistors treated as
    shorts rather than opens for netlist and layout??

    Cody
     
    Cody, Oct 26, 2006
    #1
  2. For LVS purpose:
    --------------------

    Diva divaLVS.rul: removeDevice( "device" short( "PINA" "PINB" ) )

    Assura compare.rul: avCompareRules(
    schematic(
    filterDevice( "device" short( "PINA" "PINB" ) )
    )
    )
    ..avc_setup.tpl e.g.: ( filterDevice )
    ( "view" t )
    ( "edit" nil )
    ( "use" t )
    ( filterDevice "filterDevice( \"device\" short( \"PINA\" \"PINB\" ) )\n

    For netlistng purpose:
    ------------------------

    Instance Property: nlAction string "ignore"

    Instance Property: lvsIgnore boolean TRUE

    ( I'm not sure wether this will create a short or open, you have to test it)



    I'm not sure in which version which command was implemented, but that's
    my ideas.

    Bernd
     
    Bernd Fischer, Oct 26, 2006
    #2
  3. Cody

    Cody Guest

    I was trying to come up with a solution that didn't alter anything
    outside of my cell views. This circuit will be simulated and verified
    at multiple locations, so changing a rules file would require
    acceptance of the new file at all locations. Though this may be the
    only way. I'm basically trying to avoid having one schematic for
    simulation and different schematic for verification.

    Is it possible to create a new generic device that could toggle from an
    open to a short?

    Cody
     
    Cody, Oct 26, 2006
    #3
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