avr mcus

What the clock fuses actually select An ATmega32 does not start until the fuses say how fast to run. Four bits in the low fuse byte, CKSEL3..0, pick the source: 1111–1010 crystal or ceramic resonator, 1001 a 32.768 kHz watch crystal, 1000–0101 external RC, 0100–0001 the calibrated internal RC oscillator, 0000 an external clock on […]