• 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. PCB Design
  3. updating symbols

Stats

  • Locked Locked
  • Replies 2
  • Subscribers 166
  • Views 12979
  • Members are here 0
More Content
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

updating symbols

masamasa
masamasa over 5 years ago

hello

what would be the best way to update a symbol?

i removed a few pins from the existing symbol on the current design.

so "refresh symbol" gives me an error and does not work.

this is how i do but if there is a better way, i would like to know.

1. export out the symbol and netlist from the design.

2. modify the symbol by removing pins and save it as a different dra file name.

3. create a psm file and a device file.

4. remove the old symbol from the design and place the new symbol manually.

5. on the parts list, remove the old symbol and add the new symbol and refdes.

6. assign the refdes to the new symbol.

7. modify the netlist using the new symbol name and import the netlist to the design.

  • Cancel
  • UlfK
    UlfK over 5 years ago

    1. From the old symbol in your OLB, save the symbol under a different name and edit pin assignments and footprint definition (don't forget to save on exit).

    2. Export the old footprint.

    3. Modify the footprint and save/create the .psm to the foot prints \symbols folder using the name in (1).

    4. Do a netlist with board update checked, using a revisioned name enabling you to save the "old" version in case you forgot something.

    • Cancel
    • Vote Up 0 Vote Down
    • Cancel
  • masamasa
    masamasa over 5 years ago in reply to UlfK

    thank you for your reply.

    i can try that method.

    thank you again.

    • Cancel
    • Vote Up 0 Vote Down
    • Cancel
Cadence Guidelines

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