Mail Archives: geda-help/2018/03/25/09:49:49
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Hans,
The pin symbol is just a gschem pin, with a pin attribute and a circle meant=
to symbolize the pad or hole. Synonymous with "test point".
Add two testpoints to the net. The footprint is just, say, a footprint you c=
reate ... for the simplest case it could be one pin out of the 1/4W through h=
ole resistor footprint saved as "tp.fp". It needs to be pin one in the .fp t=
ext file and in the symbol.
Ie make the footprint in your text editor.
The two footprint can now be placed in PCB allowing any spacing or orientati=
on because the are separate, unlike using a resistor for your jumpers.
The extra copper layer, or layers as need allow the board to be fully routed=
and provides you with a sketch of where the wires go in the end.
Phil
> On Mar 25, 2018, at 8:50 AM, HansFong <hansfong AT zonnet DOT nl> wrote:
>=20
> Hello all,
>=20
> Thanks for the replies, some of which were a little over my head, some lef=
t me with more questions.
>=20
> The testpin symbol is a ready-made solution for one of my problems, althou=
gh I find it puzzling that there are no footprints for this symbol in the st=
andard installation.
>=20
> Bert Timmermans and Phil Taylor basically wrote the solution that I first h=
ad in mind, but the way to achieve this is still a question for me. Bert wro=
te:
>=20
> "I use two single pin symbols in the schematic and connect (and place a te=
xt "wire bridge"). I use two single pin footprints in the pcb layout and dra=
w the "wire" on a separate layer and silkscreen."
>=20
> Where can I find pin symbols? In gschem I couldn't find them and the symbo=
ls under Input/Output (generic) didn't work for me, even when I assigned a f=
ootprint to them (I used a footprint of a single pin header). Is this a case=
of rolling your own?=20
>=20
> In the mean time I used pin headers as a temporary solution and it works. T=
he board is a double layer hobby project in order to learn to use gEDA, so i=
t doesn't need to be professional, but still.... I want to get it right.
>=20
> Hans
>=20
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<html><head><meta http-equiv=3D"content-type" content=3D"text/html; charset=3D=
utf-8"></head><body dir=3D"auto"><div></div><div>Hans,</div><div><br></div><=
div>The pin symbol is just a gschem pin, with a pin attribute and a circle m=
eant to symbolize the pad or hole. Synonymous with "test point".</div><div><=
br></div><div>Add two testpoints to the net. The footprint is just, sa=
y, a footprint you create ... for the simplest case it could be one pin out o=
f the 1/4W through hole resistor footprint saved as "tp.fp". It needs t=
o be pin one in the .fp text file and in the symbol.</div><div><br></div><di=
v>Ie make the footprint in your text editor.</div><div><br></div><div>The tw=
o footprint can now be placed in PCB allowing any spacing or orientation bec=
ause the are separate, unlike using a resistor for your jumpers.</div><div><=
br></div><div>The extra copper layer, or layers as need allow the board to b=
e fully routed and provides you with a sketch of where the wires go in the e=
nd.</div><div><br></div><div>Phil</div><div><br>On Mar 25, 2018, at 8:50 AM,=
HansFong <<a href=3D"mailto:hansfong AT zonnet DOT nl">hansfong AT zonnet DOT nl</a>&g=
t; wrote:<br><br></div><blockquote type=3D"cite"><div>
=20
<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Dutf-8"=
>
=20
=20
Hello all,<br>
<br>
Thanks for the replies, some of which were a little over my head,
some left me with more questions.<br>
<br>
The testpin symbol is a ready-made solution for one of my problems,
although I find it puzzling that there are no footprints for this
symbol in the standard installation.<br>
<br>
Bert Timmermans and Phil Taylor basically wrote the solution that I
first had in mind, but the way to achieve this is still a question
for me. Bert wrote:<br>
<br>
"<i>I use two single pin symbols in the schematic and connect (and
place a text "wire bridge"). I use two single pin footprints in
the pcb layout and draw the "wire" on a separate layer and
silkscreen.</i>"<br>
<br>
Where can I find pin symbols? In gschem I couldn't find them and the
symbols under Input/Output (generic) didn't work for me, even when I
assigned a footprint to them (I used a footprint of a single pin
header). Is this a case of rolling your own? <br>
<br>
In the mean time I used pin headers as a temporary solution and it
works. The board is a double layer hobby project in order to learn
to use gEDA, so it doesn't need to be professional, but still.... I
want to get it right.<br>
<br>
Hans<br>
<br>
=20
</div></blockquote></body></html>=
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