Re: gEDA-user: PCB package creation guidelines

[Dan McMahill <dan@xxxxxxxxxxxx>]

On Wed, Dec 29, 2004 at 02:12:21PM -0800, Steve Meier wrote:
> In my land patterns I use the center of pad 1 as the centroid. I am
> opposed to putting pad names into land patterns because that would make
> patterns non reusable for different components. Do we really need one
> land pattern for an so14 7400 and a second one for a 7402 and so on and
> on. Now if we could get the pad name inserted into the netlist and then
> inserted into the pcb file... that would be COOL.
> 
> Steve Meier
 
I'd like to come up with a different way for doing forward annotation
from gschem to pcb and perhaps at the same time address the back annotation
problem.

In particular, gsch2pcb right now I think needs to know too much about
pcb, its file formats, library paths, etc.  What I'd like is to generate
a file which tells pcb

- instantiate U1 which is a SO8, device type = <some vendor #>, and
  here are the pin names to use: 1 -> NC 2-> IN-, 3-> IN+, etc.

Then I want pcb to have to figure the rest out.  It seems with some
planning that this intermediate file, similar to the ECO files used
by pads, could have a pretty long life without a need for lots of 
incremental changes.

-Dan

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