Stats

  • Locked Locked
  • Replies 5
  • Subscribers 143
  • Views 12157
  • Members are here 0
This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

Using bndGetBoundObjects without launching layout XL (issue with arrays)

AndreaDY

Hi I'm trying to use the function bndGetBoundObjects to solve a problem similar to the problem described here: https://community.cadence.com/cadence_technology_forums/f/custom-ic-skill/44003/get-schematic-to-layout-bound-stdcells-for-array

The difference is that I want to go through many cells hierarchically and I don't want to open layout XL each time. I find a solution for this here: https://community.cadence.com/cadence_technology_forums/f/custom-ic-skill/37517/how-to-check-the-xl-status-using-skill

So to make a test I selected an schematic instance and I tried the following commands:

schInst=car(geGetSelSet())

layInstance = caaar(lxRunCmdInVXL(layView 'bndGetBoundObjects list(list(schInst 0))))

Where layView is the layout view where the bound instance lives (I checked the binding opening layout XL). The problem is that the second command returns nil. However, when I use caaar(bndGetBoundObjects(list(list(schInst 0)))) I get the correct instance.

What am I doing wrong? Any help is appreciated.

Parents
  • AndreaDY

    I forgot to say that I using Virtuoso IC6.1.8

  • dmay
    in reply to AndreaDY

    The command seems to work for me. I get the same result with the lxRunCmdInVXL as I get when I run it in VXL. In my case I'm simply passing in the instId from the schematic and the layout cellview id. I see VXL messages in the CIW when I run it.

    x=lxRunCmdInVXL(layCv 'bndGetBoundObjects selectedSet())
    INFO (LX-1216): To ensure that Layout XL always evaluates CDF parameters correctly, set
    the 'CDS_Netlisting_Mode' environment variable to 'Analog' prior to launching the application.
    INFO (BND-1003): Binder initialized for layout cellview 'derek_lib/cell_dmay/layout' and source cellview 'derek_lib/cell_dmay/schematic':

    bound unbound ungenerated
    terminals 6 0 9
    nets 19 0 0
    instances 68 0 0

    *WARNING* (BND-2005): Layout instances and terminals do not match the source.
    Use 'XL Status' in the Navigator or run 'Connectivity - Check - Against Source' for more details.
    If the bindings are correct, run the 'Update from Source' commands,
    otherwise run 'Connectivity - Update - Binding'.
    (((db:0x5a9655dd 0 0 0)
    (db:0x5a964223 0 0 0)
    )
    )

    Version = 6.1.8 ISR 11

    Derek

  • AndreaDY
    in reply to dmay

    Hi. In my case the command works but only if I don't pass the index of the instance in the array of instances. If I try the solution with the index (suggested here: https://community.cadence.com/cadence_technology_forums/f/custom-ic-skill/44003/get-schematic-to-layout-bound-stdcells-for-array ) it only works when I open layout XL.

    To be more clear: I have an set of schematic instances called I20<2:0> and I want to know the layout instance bound to each one (i.e I20<2>, I20<1> and I20<0>).

    Thanks

  • Andrew Beckett
    in reply to AndreaDY

    This appears to be a bug - I can reproduce it. You should contact customer support (I can't see any reports of the same issue having been filed).

    Andrew

Reply
  • Andrew Beckett
    in reply to AndreaDY

    This appears to be a bug - I can reproduce it. You should contact customer support (I can't see any reports of the same issue having been filed).

    Andrew

Children
  • AndreaDY
    in reply to Andrew Beckett

    I will contact customer support. Thanks.

Community Guidelines

The Cadence Design Communities support Cadence users and technologists interacting to exchange ideas, news, technical information, and best practices to solve problems and get the most from Cadence technology. The community is open to everyone, and to provide the most value, we require participants to follow our Community Guidelines that facilitate a quality exchange of ideas and information. By accessing, contributing, using or downloading any materials from the site, you agree to be bound by the full Community Guidelines.