#!/bin/bash

set -e

# Settings:
# LFUSE: no ckdiv, no ckout, maximum settle time, external 8MHz crystal
# HFUSE: smallest bootloader (optiboot uses 512B = 256W), bootloader enabled
# EFUSE: Brown-out level set to 1.8V
# LOCK:  disable bootloader overwrite from app section

avrdude -p m328p -c dragon_isp \
    -U lfuse:w:0xff:m \
    -U hfuse:w:0xde:m \
    -U efuse:w:0xfe:m \
    -U lock:w:0xef:m \
    -U flash:w:optiboot_atmega328.hex

echo "Done."