I am not sure what you mean here Stuart? There is a risk that a user would pick a symbol with pin numbers that match one physical foot print but at layout time would select a foot print for a different packaging of the device.
I sure would like to at least warn a user that "hey that foot print doesn't match that symbol". Even better would be a system similar to slots where the user could pick the foot print at shematic time and the shematic symbol would switch to showing the matching symbol. However, I suspect we can't idiot proof everything. Steve Meier > >> I'll take the opportunity to warn that descriptions like "64 pin TQFP" > >> are dangerous. QFP's come in 0.5, 0.65, 0.8, and possibly 0.4 mm pin > >> pitch so you may find two QFP's with the same pin count but different > >> pin pitch. > > > Acording to datasheet from atmel.com atmega128 have two variants one is > > some kind of bga > > and the second is TQFP64_14. Then in my opinion it can be safely changed > > from TQFP64 to TQFP64_14 in /usr/share/gEDA/sym/micro/ATmega128-3.sym. > > Because it's quite a bit confusing when you add symbol from geda library > > and it doesn't work. > > Here's another reason to eschew heavy symbols in the gEDA distribution -- > Newbies just assume that they will get the footprint they want from any > particular symbol. Better, > IMO, to force everybody to manually assign the footprint after placing the > symbol. That way you know what you are getting. Or at least you have > only yourself to blame when things go awary. > > Stuart > > > _______________________________________________ > geda-user mailing list > geda-user@moria.seul.org > http://www.seul.org/cgi-bin/mailman/listinfo/geda-user _______________________________________________ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user