On Jan 23, 2012, at 23:28 , Joerg Wunsch wrote: > Rick Mann <[email protected]> wrote: > >>>> If I don't pass 'atmega644a' to GCC, it won't build properly. >>> >>> Because the ATmega644A is not the same as an ATmega644, but rather an >>> ATmega644P without `P' (picopower). ... > >> Interestingly, the signature for my ATmega644A parts is 0x1e9609, >> same as for the '644 part. The signature for the '644P is 1E 96 >> 0A. So I was going with the '644 definition. > > That's indeed kind of strange. The ATmega644A has two UARTs (as the > smaller 324P and 164P always had), while the ATmega644 has only one. > I think that's the major difference. > > Sure, it's a drop-in replacement nevertheless, but using the same > device IDs is confusing, for sure.
Agreed. -- Rick _______________________________________________ AVR-chat mailing list [email protected] https://lists.nongnu.org/mailman/listinfo/avr-chat
