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Date: Mon, 17 Oct 2016 01:09:03 +0200
From: Kai-Martin Knaak <kmk AT familieknaak DOT de>
To: geda-user AT delorie DOT com
Subject: Re: [geda-user] pin number and pin sequence of diodes
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conover AT rahul DOT net (John Conover) schrieb am 19. September 2016:

> Unless I am mistaken, the PINSEQ is reversed in many of the library
> diodes.
> 
> Spice requires the anode node followed by the cathode node, as
> determined by the PINSEQs, (these, I think, are reversed in many of
> the diodes in the library.)
> 
> Pcb routes on the pin number,

correct.
PCB uses the pin numbers of the footprint. These are matched to the pin
number of the symbol.


> If I want to layout the diode circuit, PINNUMBER=1 would be the
> cathode, and PINNUMBER=2 would be the anode, (and the PINLABEL would
> be K and A, respectively.)

The pin number attribute can contain (almost) arbitrary strings rather
than just integers. I use 'K' and 'A' as pin numbers for diode symbols
in my library. This seems to be less prone to confusion than '1' and
'2'. 

---<)kaimartin(>---
-- 
Kai-Martin Knaak
Email: kmk AT familieknaak DOT de
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