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Subject: Re: [geda-user] gschem gnetlist bug/feature
To: geda-user AT delorie DOT com
References: <95e469bb-5572-fa1d-0c18-ed5abadd10cf AT ecosensory DOT com>
 <alpine DOT DEB DOT 2 DOT 11 DOT 1702102141040 DOT 1974 AT nimbus>
From: "John Griessen (john AT ecosensory DOT com) [via geda-user AT delorie DOT com]" <geda-user AT delorie DOT com>
Message-ID: <89b42141-9448-1c52-f4be-b4cc41ed7091@ecosensory.com>
Date: Fri, 10 Feb 2017 15:28:19 -0600
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On 02/10/2017 02:41 PM, Roland Lutz wrote:
> On Fri, 10 Feb 2017, John Griessen (john AT ecosensory DOT com) [via geda-user AT delorie DOT com] wrote:
>> I was going along making schematics and hit on an odd thing -- maybe I never tired it before.  I wanted a symbol like Vdd with a
>> flat line under it and pin going down, representing a positive supply usually, and with a name 20V_IN.  I also have a row of
>> connector netnames I wanted to connect to this but gnetlist would not see the attached attribute, and only used the "inherited"
>> one, (which I would call a default attrib likely to be overridden, not inherited).
>
> What are you trying to do?

Create netnamed power nets and also use the familiar power and ground symbols without having to have a
custom symbol for the purpose.  I created a version of Vdd with a line under it on a pin with the
net=VDC:1   I add a netname=20V_IN attrib to it and get the behavior above, which is close enough to what I want.


>
> If you want to connect the net “Vdd” to the net “20V_IN”, you have to add the attribute “netname=20V_IN” to a net object, not to
> the component.

I wanted to ignore the internal value net=, not inherit it and override it with netname=20V_IN.  Seems to have partly worked.

>
> If you want to change the power symbol from “Vdd” to “20V_IN”, you have to add the attribute “net=20V_IN:1” to the power symbol.
Undesirable to have all flavors of power and ground symbols.  I just skip that idea.


-- 
John Griessen -- building field gear for biologists
Ecosensory  Austin TX  ecosensory.com