Stats

  • Locked Locked
  • Replies 4
  • Subscribers 126
  • Views 14801
  • 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

using nport in Verilog-AMS

TobiasM

Hi everybody,

I want to use a nport in Verilog-A/Verilog-AMS. The implementation has been done like this:
nport #(.file("/my_folder/my_device.sparam"), .interp("spline"), .thermalnoise("no"), .usewindow("yes")) N0 (BiasN, AVSS, BiasN_cm, AVSS, BiasP, AVSS, CBiasN, AVSS);
But when I try to simulate, there's this error that the file can't be found.
ERROR (CMI-2011): Unable to open S-parameter file `"/my_folder/my_device.sparam"'.

When I copy the path and try to open the file with emacs there's no error. So could someone tell me, where's my error in implementation or usage?

Thanks a lot,
Tobias

Parents

  • I suspect it's the way you are defining the path in the file parameter.  Try using a full path, rather than relative path.

    Also, it's good practice to designate your s-parameter files as mydevicesparam.s3p (or .s2p, .s4p, etc.).  Not a big deal, but if you later want to plot those s-parameters in ViVA standalone, you'll be able to do so.

     

    best regards,

    Tawna

Reply

  • I suspect it's the way you are defining the path in the file parameter.  Try using a full path, rather than relative path.

    Also, it's good practice to designate your s-parameter files as mydevicesparam.s3p (or .s2p, .s4p, etc.).  Not a big deal, but if you later want to plot those s-parameters in ViVA standalone, you'll be able to do so.

     

    best regards,

    Tawna

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.