hi raschemmel,
I have the boards.txt for atmega88 in my hardware when I burned the bootloader into it. Below is the boards.txt file,
could you please tell me what parameters or fuses I need to change in order to achieve the external clock. Thanks in advance.
atmega88 boards.txt file:
##############################################################
avr88p.name=ATmega88P / Int. 8MHz
avr88p.upload.using=arduino:arduinoisp
avr88p.upload.maximum_size=8192
avr88p.bootloader.low_fuses=0xe2
avr88p.bootloader.high_fuses=0xdf
avr88p.bootloader.extended_fuses=0x07
avr88p.bootloader.path=optiboot
avr88p.bootloader.file=88p-8.hex
avr88p.bootloader.unlock_bits=0x3F
avr88p.bootloader.lock_bits=0x3F
avr88p.build.mcu=atmega88p
avr88p.build.f_cpu=8000000L
avr88p.build.core=atmega88p
avr88p.build.variant=standard
##############################################################