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Read drill tolerance and DEFAULT_INTERNAL pad(s) from padstack

stburton

I'm trying to get both the associated hole tolerance from a padstack definition and the defined "DEFAULT INTERNAL" pad(s) using the Allegro SKILL api.

I am able to extract all other portions of the padstack definition except for these two pieces of information. I have tried iterating over the "pads" property of the padstack but the "DEFAULT INTERNAL" pads are mysteriously absent. Similarly, axlDBGetPad is not able to retrieve the pads (as far as I can tell). There are definitely default internal pads defined for the padstacks.

For the drill tolerance I can't seem to find anything about how to retrieve the tolerance values in the documentation. All other drill properties (drillOffset, drillDiameter, etc.) are associated with the padstack definition object and are perfectly readable, but the hole tolerance is mysteriously missing.

I've scoured the Allegro SKILL documentation but can't seem to find any information on these issues. 

Any help or advice would be appreciated. Thank you. 

I'm using Allegro 16.3

  • Thanks.

    I'm on 16.3 but both methods you suggested seem to work in 16.3.

    How did you know to use the 'internal symbol to retrieve the internal pads for axlDBGetPad? I couldn't seem to find it documented anywhere.

      I don't know how I missed the "holeTolerance" property on the padstack definition, could have sworn it was missing the other day. 

     Thanks again to everyone who replied. 

  • could be a couple of reasons:

    - the functionality was added in a hotfix

    - it was missed in the offical doc

    Seeing that the 16.5 offical doc (cdnshelp) has it then it might have been added to 16.3 via a hotfix. The unoffical doc can sometimes have info not in the real doc. This is @ <cdsroot>/share/pcb/examples/skill/DOC/FUNCS

    Being on UNIX, I find it is easier to use the unoffical doc since I can search by using 'grep'. The unoffical doc doesn't contain drawings but the axl Reference manual doesn't have many of them.

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