I've always handled this by making the symbol and footprint match. In other words - you need a 3-pin symbol to match your 3-pin footprint. There is a "NC" gschem symbol in the library for this purpose. You do have to be careful of how gnetlist handles the "NC" net. It should not appear in the netlist given to PCB.
Joe T On Tue, Aug 5, 2008 at 9:42 PM, Ed & Angie S. <[EMAIL PROTECTED]> wrote: > I know through the years there has been a lot of discussion on this issue > but I haven't been able to find the answer to my problem after searching the > archives. I'm wondering how to refer to a 3 pin footprint with a two pin > schematic symbol as is the case for a sot23 diode. My actual question is > probably simple for the experts out there. I've already created a special > symbol for a sot23 diode. The actual symbol graphic is a normal diode that > has 2 pins, pin 1 and pin3. I believe I need to specify a pin 2 in the > symbol textually somehow so that PCB layout software will match its 3 pin > footprint to a schematically defined 3 pin device. How do I annotate the > gschem symbol for a pin 2 without a graphical entity to assign the pin to. > It's a no connect or unused pin so it needs no graphic but the symbol does > need to have 3 pins when the netlist is generated for layout. > > Thanks > > Ed > > > > _______________________________________________ > geda-user mailing list > [email protected] > http://www.seul.org/cgi-bin/mailman/listinfo/geda-user > >
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