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Subject:	Re: [geda-user] Pin mapping (separate symbols from mappings)
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From:	John Doty <jpd AT noqsi DOT com>
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Date:	Mon, 19 Oct 2015 17:59:54 -0600
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On Oct 19, 2015, at 5:19 PM, DJ Delorie <dj AT delorie DOT com> wrote:

>=20
>> Indeed that is. But this isn't:
>>=20
>>>> The package may include footprints
>>>> viable for this component. Alternatively the package may refer to a
>>>> footprint library by giving filenames of a footprints known to =
work.
>=20
> I read this as "the netlister chooses a footprint=3D from the list of
> alternatives in the package=94.

Then why the reference to =93filenames=94? This is clearly intended to =
be pcb-specific.

The =93footprint=94 attribute in geda-gaf is a bit confusing, as it =
really refers to the physical package of the component. The actual board =
footprint you want depends on the layout tool=92s library and the board =
fabrication processes. This is beyond the scope of geda-gaf. Lately, =
I=92ve been mapping footprints using a =93database=94 that has entries =
like:

(footprint-name "CAPACITOR" "0603" "CAPC1608X87N=94)

I load the mapping script and data into gnetlist with -m. Maybe I should =
put this on gedasymbols.

>=20
> If the data included in the "package" happens to be more than what
> geda-gaf uses, that's no different than including it in a symbol
> attribute that the rest of geda-gaf ignores.
>=20

John Doty              Noqsi Aerospace, Ltd.
http://www.noqsi.com/
jpd AT noqsi DOT com



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