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All pins on schematics unconnected to their attached wires when importing EDIF from Siemens,

DavidGogiber

Hi. I am currently moving some design schematics over from Siemens EDA using the EDIF import functionality (Virtuoso 25.1). While the schematics import fine themselves, there appears to be an issue with every single input/output pin in every single schematic. While they're connected to the pin physically with a wire, when I press check and save, it tells me that they are floating. The only fix I've found is copying the pin, deleting the old one, and replacing it with the copied version. That removes the floating net warning when checking and saving. Unfortunately this is extremely time consuming for multiple different libraries. I want to know if there's a way to refresh connectivity automatically or force it to recognize that there IS a pin connected to that net. I also face the issue where the wires appear on top of the pins of device symbols instead of under/connected.  Thank you!

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  • in reply to Andrew Beckett

    Cadence forums isn't letting me upload pictures now. Here's a link to a screenshot of my schematic:
    https://prnt.sc/hROkASduEwMD



    Here is the output below from check and save:
    INFO (SCH-1170): Extracting "NOR4X2 schematic"
    Warning: Floating net "net1".
    Warning: Floating net "net2".
    Warning: Floating net "net3".
    Warning: Floating net "net4".
    Warning: Floating net "net5".
    Warning: Solder dot on cross over at ( -0.5000, -2.0500 ).
    Warning: Solder dot on cross over at ( 0.2000, -1.1500 ).
    INFO (SCH-1172): There were 0 errors and 7 warnings found in "gates NOR4X2 schematic".

  • in reply to DavidGogiber
    DavidGogiber said:
    Cadence forums isn't letting me upload pictures now

    Apologies for this - this is something that seems to break fairly regularly and our IT haven't got to the bottom of what is going wrong.

    Thanks for confirming it's from S-Edit, and you are using the "Composer" option (I'd have suggested that). I have found that usually I have to use some SKILL code to fix a few things in previous cases, but the precise details may depend on your setup and versions used to generate the EDIF.

    I would suggest that you submit a support case via http://ask.cadence.com (use the Case menu after logging in). You can always suggest that the AE contacts me - reference this thread - and I will help provide what I've done before (the code I have written in the past is not general purpose or robust enough for all scenarios to post here).

    Andrew

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  • in reply to DavidGogiber
    DavidGogiber said:
    Cadence forums isn't letting me upload pictures now

    Apologies for this - this is something that seems to break fairly regularly and our IT haven't got to the bottom of what is going wrong.

    Thanks for confirming it's from S-Edit, and you are using the "Composer" option (I'd have suggested that). I have found that usually I have to use some SKILL code to fix a few things in previous cases, but the precise details may depend on your setup and versions used to generate the EDIF.

    I would suggest that you submit a support case via http://ask.cadence.com (use the Case menu after logging in). You can always suggest that the AE contacts me - reference this thread - and I will help provide what I've done before (the code I have written in the past is not general purpose or robust enough for all scenarios to post here).

    Andrew

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