gEDA-user: Schematic Level DRC DIscussion

John Doty jpd at wispertel.net
Tue Nov 6 11:36:33 EST 2007


On Nov 6, 2007, at 7:27 AM, Steve Meier wrote:

> What do we expect the schematic DRC to catch?
>
> 1) Detect duplicate use of reference designators, but don't  
> complain if
> the usage is for different slots.
> 2) For a multi-symbol device check to make sure that the pins arn't  
> used
> multiple times?

Is that an error?

>
> But what else and what are the implications for heavy/light symbols?

Here's a simple schematic, with a silly useless circuit, many  
problems. It provokes *numerous* drc2 errors and warnings, but only  
two of them are real mistakes. And arguably, one should be able to  
duplicate connector pins for clarity within the schematic, although  
right now such usage doesn't netlist correctly. But drc2 misses all  
of the intentional errors.

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>
> Steve Meier
>
>
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> geda-user at moria.seul.org
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John Doty              Noqsi Aerospace, Ltd.
http://www.noqsi.com/
jpd at noqsi.com




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