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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

  • Hi Tawna,

    Thanks for your fast replies. I've read now all the documents you mentioned. The Solution described in your first link ("Unable to open S-parameter file during Spectre run if path given is relative path") showed the error message if the file is not found. But in contrast to my error message, the file is only quoted by a ` and ':
    Unable to open S-parameter file `myspFile.s2p'.
    While my error message would look like this:
    Unable to open S-parameter file `"myspFile.s2p"'.

    Where could this come from, as I neet to quote the filename when instantiating the nport in Verilog-A?

    Regards,
    Tobias

Reply

  • Hi Tawna,

    Thanks for your fast replies. I've read now all the documents you mentioned. The Solution described in your first link ("Unable to open S-parameter file during Spectre run if path given is relative path") showed the error message if the file is not found. But in contrast to my error message, the file is only quoted by a ` and ':
    Unable to open S-parameter file `myspFile.s2p'.
    While my error message would look like this:
    Unable to open S-parameter file `"myspFile.s2p"'.

    Where could this come from, as I neet to quote the filename when instantiating the nport in Verilog-A?

    Regards,
    Tobias

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