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Saving Currents With ':' Delimiter

sgcad

Hi

When I use a Spectre save statement NM0:d to save the drain current, the resulting output signal appears as both NM0:1 and NM0/D as shown below.

As far as I understand, this happens independently from save options such as sub-circuit probe level.

I'd prefer to get the output NM0:d instead, and only that. In another environment, although with a different PDK, I'm getting the desired result but can't find the option that is set. I've already consulted the following resources:

but so far no luck. Can you point me in the right direction? Thanks very much for your response.

Parents

  • A quick answer (not sure I'll have time to check/experiment). ViVA does show the mapped names for outputs, so the /D might actually be the :d output, mapped to schematic names.

    You can check by using the OCEAN functions:

    openResults("/path/to/psf")
    selectResult('tran) ; or whatever the analysis
    outputs(?map nil)

    This will show the unmapped names. Without ?map nil it will give the mapped names.

    Andrew

  • in reply to Andrew Beckett

    Thank you very much for your response. It took me a while to get back to this topic as a tapeout was asking for priority.

    I've now checked with the OCEAN functions you listed, and indeed the names using the / delimiter are mapped.

    Is there a way to set-up ViVa such that it only shows the unmapped names? A solution using the .cdsinit file would be preferred.

    Thanks!

  • in reply to sgcad

    No, this is not possible as far as I know (without hacking information in the PSF directory at least, I think).

    Andrew

  • in reply to Andrew Beckett

    Thanks. Do I understand your reply correctly that the mapped names are already present in the PSF directory? If yes just to ask the obvious: Is there a setting that would prevent writing the mapped names?

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