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Suppressing HDL Parser Warning and port mismatch warnings

Aarbuz

Hello,


I have a script that calls the SKILL functions vmsUpdateCellViews for every cell of a list of libraries.


I want this to be automated, but calling this function for each cell produces a pop up warning which says the following:


"HDL Parser Error/Warnings: Parsing of Verilog file produced warnings. Do you want to view the warnings file?"

The warning relates to a lack of permission to access a cds.lib file which is not important to the functionality of the script.

For certain cells there is a warning relating to a port mismatch between the cellview (functional) and a symbol view, which is due to the lack of VDD and VSS pins.


I would like to suppress these if at all possible.

There is a function called envSetVal which can suppress warnings of certain types, but I can't find a list of the tools and environment variables anywhere. Could someone point me in the right direction?

The version of Cadence Virtuoso is IC6.1.7-64b.500.6. Thanks in advance.


Andrey

  • Hi Andrey,

    You can find the list of variables and their default settings (per tool) by looking in your installation hierarchy, for example for the schematic tool the 'central' .cdsenv is here: `cds_root virtuoso`/tools/dfII/etc/tools/schematic/.cdsenv

    Maybe you can find an appropriate variable that might help suppress the unwanted warnings?

    Best regards,
    Lawrence.

  • Andrey,

    The first can be suppressed by doing:

    setenv NCVLOGOPTS "-NOWARN DLCPTH"

    or

    export NCVLOGOPTS="-NOWARN DLCPTH"

    (depending on your shell) before starting virtuoso. Most ncvlog warnings can be suppressed by putting a definition in the hdl.var, but this doesn't work for DLCPTH (if that was the warning  you were getting)

    For the other, I think it's:

    envSetVal("schematic" "disablePortOrderPopup" 'boolean t)
    envSetVal("schematic" "vicCheckPinOrder" 'boolean nil)
    vmsCrossViewCheck=nil

    Regards,

    Andrew.

  • Hi Andrew,

    Your suggestions worked perfectly. Thank you!

    Lawrence, thanks for pointing me in the right direction. I'll make a note of this should I need to do something similar again.

    Regards,
    Andrey

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