• 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 Design
  3. variable sweep in ADEXL

Stats

  • Locked Locked
  • Replies 4
  • Subscribers 125
  • Views 16931
  • 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

variable sweep in ADEXL

Litstbl
Litstbl over 9 years ago

When i sweep one variable, I want to sweep a capacitor for instance, from 1p to 10p, in 1p step, and then from 10p to 100p, in 10p step. How can I put this in ADEXL

1p:1p:10p, 10p:10p:100p

I put both in there, but ADEXL only recognize two sweeping point. Is there a way to combine this two expressions in one sweep?

Thanks!

  • Cancel
  • Andrew Beckett
    Andrew Beckett over 9 years ago

    I don't believe  you can use the shorthand (Matlab-like) form to do multiple sweeps. Instead, I'd suggest you use the "..." button next to the variable to enter multiple sweep specifications. This then allows you to enter:

    {From/To}Linear:1p:1p:10p{From/To}{From/To}Linear:20p:10p:100p{From/To}

    (note I generally would avoid having overlapping sweeps - at least in some versions that could cause duplicate simulations to be run - that's why I changed the second sweep to be from 20p to 100p in 10p steps).

    You don't have to type in the From/To stuff - if you use the ... form then this will be generated for you.

    Kind Regards,

    Andrew.

    • Cancel
    • Vote Up 0 Vote Down
    • Cancel
  • Litstbl
    Litstbl over 9 years ago
    Thanks Andrew! This works! Somehow when I use the "..." button, it will overwrite my first range and only keep the last range that I entered, so I had to manually copy paste one range. But this is good enough for me :)
    • Cancel
    • Vote Up 0 Vote Down
    • Cancel
  • Andrew Beckett
    Andrew Beckett over 9 years ago

    Presumably you didn't use the Add Specification dropdown on the form to add multiple entries. If you just change the existing setup then yes it will overwrite. If you use the Add Specification, you can add multiple sweep types together:

    Regards,

    Andrew.

    • Cancel
    • Vote Up 0 Vote Down
    • Cancel
  • Litstbl
    Litstbl over 9 years ago
    yes, you are right. I added one range and hit "ok" then I did it again and it overwrites my first one. I did not know that I can add multiple sweeps here. I vaguely remember I saw somewhere that one can combine all sorts of sweeps in one sweep, but forgot the details. I think this is it. Thanks Andrew!
    • 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