Re: gEDA-user: Multiple footprint methodology?

[Dave N6NZ <n6nz@xxxxxxxx>]

DJ Delorie wrote:
>> Yes, I get that.  I asked my question poorly. There is an attribute 
in the symbol that points to the correct pin mapping. I get the concept, 
but I don't know where all the ascii lives, and how it should be split 
up across various files.
>
> Ah.  Set the "footprint" attribute to be the name of the footprint you
> want this symbol to map to.  You'll have a different footprint for
> each package type.
>

OK, another point of confusion.  Going back to my example, on the 
ATMega88, pin 1 of the PDIP package is -RESET, while pin 1 of the TQFP 
and MLF packages is an I/O named PD3.  I keep thinking that there is a 
file someplace that maps schematic pin names to footprint pin numbers -- 
but I get the suspicion now that is not the case.  If the package pin 
number is taken straight off the schematic symbol without opportunity 
for remapping, then I am skewered -- I need different symbols.  In my 
dreams the pin numbers printed on the schematic would also be 
conditional on the "footprint" attribute. I'm guessing gschem doesn't go 
there, although I suppose there is some way to filter the ASCII .sch 
file to twiddle the attribute values.

-dave


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