• 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. Error during stream out

Stats

  • Locked Locked
  • Replies 5
  • Subscribers 143
  • Views 14873
  • 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

Error during stream out

Mohannad
Mohannad over 14 years ago

 Hello,

I am making a PCELL using skill. When I load the PCELL .il file through icfb window, everything works fine. I insert te cell in another layout and then try to steam out the layout to a .gds file, but I get this error:

FATAL(449): Pcell eveluation failed. This could happen as a result ofeither a syntax error or the use of an unsupported PIPO function

 I would greatly appreciate any help.

 Thank you very much

  • Cancel
Parents
  • skillUser
    skillUser over 14 years ago

     Hi Mohannad,

    Most likely you are using a function that is not supported within PCells - it may work correctly in an interactive icfb/virtuoso session, but PIPO (or Xstream for the CI61x releases) do not include definitions for functions that are not supported within a PCell.  "What functions are supported?" you may ask - there is a section in the documentation "Safety Rules for Creating SKILL Pcells".  You should only use core SKILL functions, and those with the approved prefixes; namely db, dd, cdf, rod and tech (plus a few others).

    Hopefully this will resolve your issue (but next I expect you may be asking for equivalent functionality for the function(s) that is/are causing the issue?).

    Regards,

    Lawrence.

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

     Hi Mohannad,

    Most likely you are using a function that is not supported within PCells - it may work correctly in an interactive icfb/virtuoso session, but PIPO (or Xstream for the CI61x releases) do not include definitions for functions that are not supported within a PCell.  "What functions are supported?" you may ask - there is a section in the documentation "Safety Rules for Creating SKILL Pcells".  You should only use core SKILL functions, and those with the approved prefixes; namely db, dd, cdf, rod and tech (plus a few others).

    Hopefully this will resolve your issue (but next I expect you may be asking for equivalent functionality for the function(s) that is/are causing the issue?).

    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