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Subject: Re: [geda-help] little Question....
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From: John Doty <jpd AT noqsi DOT com>
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Date: Tue, 23 Feb 2016 19:26:26 -0700
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On Feb 23, 2016, at 10:56 AM, Smilie (smilie AT posteo DOT de) [via =
geda-help AT delorie DOT com] <geda-help AT delorie DOT com> wrote:

> Am Tue, 23 Feb 2016 08:03:14 -0700
> schrieb John Doty <jpd AT noqsi DOT com>:
>=20
>> On Feb 23, 2016, at 6:09 AM, Smilie (smilie AT posteo DOT de) [via
>> geda-help AT delorie DOT com] <geda-help AT delorie DOT com> wrote:
>>=20
>>> Ah, i see.
>>>=20
>>>=20
>>> i have connected a line from GND.sym direct to one of the GND-Pins
>>> and the other GND-Pin works also.
>>=20
>> What are you trying to do here?
>=20
>=20
> I want do write a script for automatic generation a spreadsheet with
> all pin-names for any connector. I try to generate it from the
> netlist-stuff.
> But it does not work if i have only one potential.
> The test with netname also does not work.

OK, I=92m puzzled. The IO symbols don=92t represent physical pins on =
connectors. They represent logical connections within a set of =
schematics. What are you doing with them?

For connector pin lists, I work in the other direction, generating a =
pseudo-schematic from a table of pins rather than generating a table =
from a schematic. See =
http://www.gedasymbols.org/user/john_doty/tools/pins2gsch.html
>=20
>=20
>=20
>>=20
>> What these symbols do is to give a net a name. That=92s all. Naming =
the
>> net connected to a pin GND connects it to all other nets named GND.
>> If you have more than one such symbol, and the names don=92t match,
>> gnetlist will choose the first one it sees.
>>=20
>> Is your net connected to anything?
>>=20
>>>=20
>>> It is a bug?
>>> I broke my head....
>>>=20
>>> Thanks for helping me.
>>>=20
>>>=20
>>>=20
>>>=20
>>> Am Tue, 23 Feb 2016 10:20:16 +0000
>>> schrieb "Peter Clifton (petercjclifton AT googlemail DOT com) [via
>>> geda-help AT delorie DOT com]" <geda-help AT delorie DOT com>:
>>>=20
>>>> Sorry I'm not currently able to check this out, but I recall that
>>>> gnetlist has (in the past, and possibly currently), not worked
>>>> properly in the case where only IO symbols with net=3D....:1
>>>> attributes (but no actual components).
>>>>=20
>>>> My recollection is not that clear, but try adding a dummy component
>>>> (perhaps a resistor), with one pin connected on your schematic
>>>> where you join PGND and your IO sym.  Don't need to give it a
>>>> footprint (but you will probably get complaints from pcb about the
>>>> missing component).
>>>>=20
>>>> If this makes the connection appear in pcb, let us know - and I'll
>>>> see if anyone working on the gEDA side of things has any ideas for
>>>> a fix, or better work around.
>>>>=20
>>>> I have an idea that I've made some boards with netlists that
>>>> featured Rdummy1 Rdummy2 etc.... and I think I was working around
>>>> the same issue you describe.
>>>>=20
>>>> Peter
>>>> On 22 Feb 2016 21:03, "Smilie (smilie AT posteo DOT de) [via
>>>> geda-help AT delorie DOT com]" <geda-help AT delorie DOT com> wrote:
>>>>=20
>>>>> Hallo Guys,
>>>>>=20
>>>>> i have a problem with my net or netname-attributes.
>>>>>=20
>>>>> I have a connector with some io-1.sym's with attributes like this:
>>>>> net=3D"abcd:1".
>>>>> Than i have a PGND.sym connected to the other io-1.sym's.
>>>>> They have also the attribs net=3D"abcd:1".
>>>>>=20
>>>>> I wont tho have a connection between the connector and the pgnd
>>>>> but there is no connection in pcb.
>>>>>=20
>>>>> What is wrong?
>>>>>=20
>>>>> Thanks for helping me.
>>>>>=20
>>>=20
>>>=20
>>=20
>> John Doty              Noqsi Aerospace, Ltd.
>> http://www.noqsi.com/
>> jpd AT noqsi DOT com
>>=20
>>=20
>=20
>=20
>=20

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



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