I use my Duemilanove (w/ 328) for general hackery (using a Mac most of the time, but sometimes OpenBSD), so I've never troubled myself with understanding the fuses. Recently I've been messing about with some timing stuff, which led me in a circle through AVRlib and the ATmega data sheet, and a close…

Fuse mystery with a Duemilanove/ATmega328P

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