Re: gEDA-user: merge multi symbol components

[Gabriel Paubert <paubert@xxxxxxx>]

On Wed, Jul 22, 2009 at 06:07:54AM -0500, Bill Gatliff wrote:
> Kai-Martin Knaak wrote:
> > The main case I'd like to catch is unintentionally duplicated symbols. If 
> > both, refdes and all pins are identical, it is safe to assume an error. 
> >   
> 
> Nak.  In my case, I use one symbol to refer to all 8/16/32 bits of a 
> GPIO port on a microcontroller.  I'll use a few bits from that port on 
> one page, and a few on another.

Connect it to an NC symbol to explicitly show that you don't use that
pin in that instance of the symbol.

But the rules start to become inscrutable.

> If I'm dealing with a wired-OR input, then the same pin might get used 
> on several different sheets.  And if that's the only pin on a port that 
> gets used, then your logic would trip it as an unintentionally 
> duplicated symbol.

Ok, that one is really harder. 

	Gabriel


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