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abstract warning ABS-1007

coffeelox

While I tried to generate abstract.pin in abstract, I got following warnings. Can I ignore them? especially for the 1st two warnings, I don't know what they mean...

WARNING   (ABS-1007): Cell PAVSS: schematic and abstract.pin views terminal vss have different types
WARNING   (ABS-1007): Cell PAVSS: schematic and abstract.pin views terminal vdd have different types
WARNING   (ABS-1004): Cell PAVSS: schematic view does not have a terminal named sub!
WARNING   (ABS-1089): Cell PAVSS: has no output terminals

Thanks...

Parents

  • Thanks for quick response! Yeah, I did read the doc, but I don't understand why there are warnings... so I guess they might be ignorable...?

    In my schematic, I defined vss as "inout", and in abstract, I saw its direction is "inout" and its termType is "ground", so it should be match, why it said they have different types?

    for the last two warnings, I guess I can ignore them as well?

    1st one is for substract global contact.

    2nd one is because this pad is doing ESD protection, it consists of vdd, vss and esd protection circuit in between. vdd wire is part of the vdd ring connected to neighbour vdd pad. vss wire is provided by this pad and go to vss ring to provide vss connection for other pads. As the wire has been defined for vss inout, I guess I could not define the same wire as input or output for core power supply, however it's there. so I guess I could just ignore it?

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  • Thanks for quick response! Yeah, I did read the doc, but I don't understand why there are warnings... so I guess they might be ignorable...?

    In my schematic, I defined vss as "inout", and in abstract, I saw its direction is "inout" and its termType is "ground", so it should be match, why it said they have different types?

    for the last two warnings, I guess I can ignore them as well?

    1st one is for substract global contact.

    2nd one is because this pad is doing ESD protection, it consists of vdd, vss and esd protection circuit in between. vdd wire is part of the vdd ring connected to neighbour vdd pad. vss wire is provided by this pad and go to vss ring to provide vss connection for other pads. As the wire has been defined for vss inout, I guess I could not define the same wire as input or output for core power supply, however it's there. so I guess I could just ignore it?

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