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From: Kai-Martin Knaak <kmk AT familieknaak DOT de>
Subject: Re: [geda-user] Star connection points in PCB?
Date: Wed, 18 Feb 2015 09:54:43 +0100
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References: <1502170242 DOT AA18887 AT ivan DOT Harhan DOT ORG> <alpine DOT DEB DOT 2 DOT 00 DOT 1502170501000 DOT 7324 AT igor2priv> <54E354D4 DOT 3040509 AT ecosensory DOT com>
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John Griessen wrote:

> On 02/16/2015 10:33 PM,
> gedau AT igor2 DOT repo DOT hu wrote:
>> Proposal 3
>>
>> Add a component flag in pcb that tells "there is no short between
>> the pads of this component, even if they overlap!", then draw the
>> actual star out of pads.


> I like this because the netlist generated is sane.  One sees the
> converging of power nets at a symbol, and that
> symbol can relate to a physical location. 

I like this approach, too. It also kind of resolves the case where a 
actual component connects some of its pins internally. This is quite 
common with switches and other mechanical components like shielding.


>> Drawbacks:
>>
>>   - the same pin numbering and back-annotation problem that you
>>   have with connectors

@Igor2: Would you mind to elaborate?


>>   - the star symbol/footprint will have explicit number of pins,
>>   you may end up unused pins or will have to replace with the next
>> bigger if more nets are to be connected

The pads of the star symbol can be 100% overlapping in the footprint. 
So a replacement won't break the layout. 

---<)kaimartin(>---