The fuse settings are set to use the internal 8MHz oscillator with the CKDIV8 fuse disabled. For ATmega88PA, the fuses are set as follows:
- Low:
0xe2 - High:
0xdf - Extended:
0xff
avrdude -pm88p -cusbasp -Ulfuse:w:0xe2:m -Uhfuse:w:0xdf:m -Uefuse:w:0xff:m