I'm doing an experiment with running an independent Atmega1280 chip in a breadboard-Arduino style (sort of). Works great with the default Arduino Mega1280 bootloader, with the chip running @ 5 Volts, 16 Mhz. However, my idea is to run the chip at 3.3 Volts, and thus with an external crystal of 8 Mh…

[SOLVED] Bootloading Mega1280 to run @ 8 Mhz, 3.3 V

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