• 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. Output expressions containing variables and parameters not...

Stats

  • Locked Locked
  • Replies 6
  • Subscribers 126
  • Views 21868
  • 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

Output expressions containing variables and parameters not executed when using ADE XL

Chevelle70
Chevelle70 over 9 years ago

Hi,

I am running transient simulations using APS in ADE XL environment across multiple corners.

I have set output expressions in ADE XL Test Editor in the forms shown below:

value(v("I124.I4.Mp60:vds" ?result "tran") Ts)

value(v("I124.I4.Mp57:vds" ?result "tran") (Ts + (0.8 * Tck)))

Where "Ts" value, corner dependent, and "Tck", corner independent, are both set as Design Variable in the Corners Setup window.

I am receiving eval err with the error messages such as the following:

*Error* ("eval" 0 t nil ("*Error* eval: unbound variable" Tck))

*Error* ("eval" 0 t nil ("*Error* eval: unbound variable" Ts))

Could you please help as how we can define variables and parameters in the output expressions, as shown above, when running simulations (single or multiple corners) in ADEXL?

Thank you,

-Alireza

  • Cancel
Parents
  • AlbertoLopez
    AlbertoLopez over 5 years ago

    Hello all, 

    I am having the same issue, but it is not solved. I created the following expressions on the ADE Assembler outputs:

    t1 --> VAR("retraso")

    t2  --> (VAR("retraso") + (VAR("step")))

    retraso and step are design variables and they are properly defined.

    *Error* ("plus" 0 t nil ("*Error* plus: can't handle (nil + nil)"))

    *Error* Evaluating expression ((VAR("retraso") + VAR("step"))).

    *Error* ("eval" 0 t nil ("*Error* eval: not a function" VAR("step")))

     

    Thanks in advance

    • Cancel
    • Vote Up 0 Vote Down
    • Cancel
Reply
  • AlbertoLopez
    AlbertoLopez over 5 years ago

    Hello all, 

    I am having the same issue, but it is not solved. I created the following expressions on the ADE Assembler outputs:

    t1 --> VAR("retraso")

    t2  --> (VAR("retraso") + (VAR("step")))

    retraso and step are design variables and they are properly defined.

    *Error* ("plus" 0 t nil ("*Error* plus: can't handle (nil + nil)"))

    *Error* Evaluating expression ((VAR("retraso") + VAR("step"))).

    *Error* ("eval" 0 t nil ("*Error* eval: not a function" VAR("step")))

     

    Thanks in advance

    • Cancel
    • Vote Up 0 Vote Down
    • Cancel
Children
  • Andrew Beckett
    Andrew Beckett over 5 years ago in reply to AlbertoLopez

    Would have been better to start a new thread (As the forum guidelines suggest), but anyway it would be useful to know:

    1. Which IC subversion are you using (Help->About will tell you)
    2. Are there global variables with the same name defined, or just design variables under the test? Are the global variables enabled if so?
    3. Are the output expressions using VAR for the same test where the design variables are defined?

    Andrew.

    • Cancel
    • Vote Up 0 Vote Down
    • Cancel
  • AlbertoLopez
    AlbertoLopez over 5 years ago in reply to Andrew Beckett

    Hello Andrew, 

    1- Cadence IC6.1.7-64b-500.15
    2-No global variables, just a few of design variables

    3- I have only one test, so all the output expressions are belonging to the same test.

    Thanks for the quick answer

    • Cancel
    • Vote Up 0 Vote Down
    • Cancel
  • Andrew Beckett
    Andrew Beckett over 5 years ago in reply to AlbertoLopez

    Hi Alberto,

    I just tried this in the same sub-version as you,  and it worked fine for me. I suspect there's some subtle problem in the setup that I can't see from your description.

    The best thing would be to contact customer support and then we can look at your data?

    Regards,

    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