• Skip to main content
  • Skip to search
  • Skip to footer
Cadence Home
  • This search text may be transcribed, used, stored, or accessed by our third-party service providers per our Cookie Policy and Privacy Policy.

  1. Community Forums
  2. Custom IC SKILL
  3. How to trigger the event to use the callback?

Stats

  • Locked Locked
  • Replies 2
  • Subscribers 143
  • Views 15469
  • 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

How to trigger the event to use the callback?

loosin
loosin over 14 years ago

Hi,

  I have a question. I wrote a skill procedure to create res pcell and cdf for instance. when I change the w, l and res value, the callback will be trigger and calculation the correct value and return the value to the property list.

But when I use "q" to show the "Edit Object Properties" in virtuoso schematic,  and change the res "cell Name" to other res type such change rpplus to rnplus, the w, l, res value will directly pass from the rpplus to rnplus, not any change, but part of other parameter such rho and model will change from rpplus to rnplus. Now when I change the w or l value, the callback will be trigger and the res value will return correct value.

 I want to know how to get such change event and make the callback procedure to automatic calculation the res value by the correspond new rho(rnplus) and refresh it, not remain the old rpplus value and need to change the w or l to get correct value by hand.

May anyone help me? Thanks

 

Loosin

  • Cancel
  • Andrew Beckett
    Andrew Beckett over 14 years ago

    Loosin,

    You can't. There's the possibility to disable the lib and cell fields on the edit properties form - which is how some people prevent this scenario.

    I would suggest logging a service request on this - there are CCRs requesting some kind of callback on the changing of cells; it's not quite as straightforward as just needing to call the callbacks - you may have property values which are meaningless on the new instance (e.g. default values with storeDefault=yes can mean that you can end up with the wrong model if you're not careful).

    Andrew.

    • Cancel
    • Vote Up 0 Vote Down
    • Cancel
  • loosin
    loosin over 14 years ago

     

    Thanks Andrew, I got it. I can't trigger cdf callback by the property change.

     

    Loosin

    • Cancel
    • Vote Up 0 Vote Down
    • Cancel

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.

© 2025 Cadence Design Systems, Inc. All Rights Reserved.

  • Terms of Use
  • Privacy
  • Cookie Policy
  • US Trademarks
  • Do Not Sell or Share My Personal Information