-U flash:w:$< -U lfuse:w:0xff:m -U hfuse:w:0xd8:m

- disabled JTAG
- BOOTRST -> bootloader
- Boot Flash section size = 1024 words
- ext crystal/resonator high freq, 16k ck + 64 ms startup time



Bootloader pouziva 0x00 bajt v Eeprom pro svuj start. Pokud je bajt nastaven na 0x01, bootloader ceka na seriak, jinak se spusti program.
