Stats

  • Locked Locked
  • Replies 2
  • Subscribers 125
  • Views 3807
  • 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

IC 6.1.6, ADE XL: Calculating scalar after the sweep using expression in Output tab

FormerMember
FormerMember

Hi,

This is my first post here, I find this forum extremelly informative and helpful. Hope that somebody can point me into right direction.

I simulate ring VCO and want to calculate a scalar of control voltage vctrl_0 resulting in a particular frequency f0. I want to use this voltage for another test. In order to do this I do the following:

1. I sweep a control voltage and calculate output frequency using vco_frq=frequency(clip(VT("/out") tstart tstop))  from .tran simulation.

2. To find control voltage of interest I use vctrl_0=cross(vco_frq f0 1 "rising" nil nil) after the sweep, using calculator. This works fine, I can get the scalar I'm looking for.

3. But when I add vctrl_0 expression to the output tab, ADE XL tries to calculate it for every sweep point instead of set, obviously resulting in error as to find vctrl_0 whole set of frquency points is necessary in first place.

Is there any way to define the expression in Output tab such it's going to be calculated for whole set of vco_frq data?

As you can suspect, I'm quite new to ADE XL. 

Regards

Greg 

 

Parents
  • FormerMember
    FormerMember

    Cheers Andrew, that clarifies a lot.

    So pss is the way then. A bit of OT: I have an old Ocean script that do exactly what I wanted to achieve in a first place but it's somewhat buggy (and I'm under time pressure currently) so I wanted to see if I can get it done the same way, directly from ADE XL.

    Either way: case closed as far as I'm concerned.

    Have a nice weekend everyone.

    Regards

    Greg 

Reply
  • FormerMember
    FormerMember

    Cheers Andrew, that clarifies a lot.

    So pss is the way then. A bit of OT: I have an old Ocean script that do exactly what I wanted to achieve in a first place but it's somewhat buggy (and I'm under time pressure currently) so I wanted to see if I can get it done the same way, directly from ADE XL.

    Either way: case closed as far as I'm concerned.

    Have a nice weekend everyone.

    Regards

    Greg 

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.