> To my knowledge this is not the case right now. Of course the pin numbers > should not be shown on the schematics: they would use up too much schematics > real estate and are not interesting anyway (even relatively simple and cheap > FPGA devices like XC3S700A has 88 power pins in the 256 pins BGA package, > that's ~35% of the pins): you can't check anything in a BGA package and even > on package that can be probed, it is extremely hard to find, say, a bad solder > joint since all pins of the same power rail are internally connected together.
I find that in FPGA design having all pins on the schematic is not an annoyance and is actually a necessity. I usually just make a single component that has all the pins of one type. Eg, a component that contains all the ground pins. I can then draw a net across all the pins connecting them all and then a single ground symbol. The separated out pins are very important for bank power as individual banks can be power by different supplies. For an XC3S700A, a single schematic page showing how power and ground pins are connected is extremely cheap and provides an easy way to do a verification against the data sheet, even by a third party review. _______________________________________________ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
