• 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 promote stretch handfle option from a sub cell instance...

Stats

  • Locked Locked
  • Replies 8
  • Subscribers 144
  • Views 14643
  • 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 promote stretch handfle option from a sub cell instance?

solx
solx over 14 years ago

 hello,

I call in my pcell some strechable sub cells.

the pb that when my pcell is generated; the sub cells (strechable) which I use are no longer strechable.

I would like to know if some one hase this pb?

how can I make/promote the strech handle option in my sub cells?

thanks in advance,

 

  • Cancel
Parents
  • skillUser
    skillUser over 14 years ago

     Hi,

    The only way that the sub cells can be altered is through their formal parameters; when these were placed and graphically stretched, you were modifying the pcell parameters, just in a graphical way.  So, if you want to be able to graphically stretch sub cells, your new pcell will need to have a parameter and an associated stretch handle in order to be able to do this (I think - I've never tried this, but it seems perfectly reasonable).  I don't know if there is a way to "promote" the sub-cells' stretch handles directly, without having a parameter in the new pcell that instantiates these cells, since this would break the above "rule" (The only way that a pcell should be modified is through its formal parameters).

    I hope that this helps.

    Regards,

    Lawrence.

    • Cancel
    • Vote Up 0 Vote Down
    • Cancel
Reply
  • skillUser
    skillUser over 14 years ago

     Hi,

    The only way that the sub cells can be altered is through their formal parameters; when these were placed and graphically stretched, you were modifying the pcell parameters, just in a graphical way.  So, if you want to be able to graphically stretch sub cells, your new pcell will need to have a parameter and an associated stretch handle in order to be able to do this (I think - I've never tried this, but it seems perfectly reasonable).  I don't know if there is a way to "promote" the sub-cells' stretch handles directly, without having a parameter in the new pcell that instantiates these cells, since this would break the above "rule" (The only way that a pcell should be modified is through its formal parameters).

    I hope that this helps.

    Regards,

    Lawrence.

    • Cancel
    • Vote Up 0 Vote Down
    • Cancel
Children
No Data

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