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From: "Peter Clifton (petercjclifton AT googlemail DOT com) [via geda-help AT delorie DOT com]" <geda-help AT delorie DOT com>
Date: Sat, 18 Feb 2017 10:41:07 +0000
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Subject: Re: [geda-help] Please help with multiple-pages schematics
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On 18 February 2017 at 08:27, Vasily Olekhov (olekhov AT gmail DOT com) [via
geda-help AT delorie DOT com] <geda-help AT delorie DOT com> wrote:

> Thank you John, I've got your point.
> Can you hint how should I reference CONN1 on the second page?
> It should be the same component CONN1 from the first page.
>

This is a slightly unusual way of doing things. I _thought_ it should work,
but having checked, it is actually generating a bad netlist.

My Windows dual-boot has gEDA 1.6.1..... so this could be some bug which is
fixed since then. What version do you use?

C:\Users\Peter\Downloads>gnetlist -g PCB p1.sch p2.sch -o test1.net
Loading schematic [C:\Users\Peter\Downloads\p1.sch]
Loading schematic [C:\Users\Peter\Downloads\p2.sch]

C:\Users\Peter\Downloads>more test1.net
unnamed_net2    TP1-1 CONN1-2
GND     CONN2-1 CONN1-3
Vcc     CONN2-3 CONN1-1
unnamed_net1    CONN2-2 CONN1-2


Notice how CONN1-2 appears in two distinct nets?



For how to achieve what you want... I think you should name the nets you
are taking between pages.

This can be done by attaching a "netname=...." attribute to the net you
want to connect on both pages. Don't repeat components between pages.

Note that your power rail symbols also "name" nets (it is how they work),
so wherever you use those symbols on multiple pages, they will connect to
the "GND" net and the "Vcc" net.

Peter

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<div dir=3D"ltr"><div class=3D"gmail_extra"><br><div class=3D"gmail_quote">=
On 18 February 2017 at 08:27, Vasily Olekhov (<a href=3D"mailto:olekhov AT gma=
il.com">olekhov AT gmail DOT com</a>) [via <a href=3D"mailto:geda-help AT delorie DOT com=
">geda-help AT delorie DOT com</a>] <span dir=3D"ltr">&lt;<a href=3D"mailto:geda-h=
elp AT delorie DOT com" target=3D"_blank">geda-help AT delorie DOT com</a>&gt;</span> wro=
te:<br><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;=
border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir=3D"ltr">T=
hank you John, I&#39;ve got your point.<div>Can you hint how should I refer=
ence CONN1 on the second page?=C2=A0</div><div>It should be the same compon=
ent CONN1 from the first page.</div></div></blockquote><div><br></div><div>=
This is a slightly unusual way of doing things. I _thought_ it should work,=
 but having checked, it is actually generating a bad netlist.</div><div><br=
></div><div>My Windows dual-boot has gEDA 1.6.1..... so this could be some =
bug which is fixed since then. What version do you use?</div><div><br></div=
><div><div>C:\Users\Peter\Downloads&gt;gnetlist -g PCB p1.sch p2.sch -o <a =
href=3D"http://test1.net">test1.net</a></div><div>Loading schematic [C:\Use=
rs\Peter\Downloads\p1.sch]</div><div>Loading schematic [C:\Users\Peter\Down=
loads\p2.sch]</div><div><br></div><div>C:\Users\Peter\Downloads&gt;more <a =
href=3D"http://test1.net">test1.net</a></div><div>unnamed_net2 =C2=A0 =C2=
=A0TP1-1 CONN1-2</div><div>GND =C2=A0 =C2=A0 CONN2-1 CONN1-3</div><div>Vcc =
=C2=A0 =C2=A0 CONN2-3 CONN1-1</div><div>unnamed_net1 =C2=A0 =C2=A0CONN2-2 C=
ONN1-2</div><div><br></div><div></div></div><div><br></div><div>Notice how =
CONN1-2 appears in two distinct nets?<br></div><div><br></div><div><br></di=
v><div><br></div><div>For how to achieve what you want... I think you shoul=
d name the nets you are taking between pages.</div><div><br></div><div>This=
 can be done by attaching a &quot;netname=3D....&quot; attribute to the net=
 you want to connect on both pages. Don&#39;t repeat components between pag=
es.</div><div><br></div><div>Note that your power rail symbols also &quot;n=
ame&quot; nets (it is how they work), so wherever you use those symbols on =
multiple pages, they will connect to the &quot;GND&quot; net and the &quot;=
Vcc&quot; net.</div><div><br></div><div>Peter</div></div></div></div>

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