Here you go, optiboot for 8MHz for the 328p. It uses 115200Baud
You just need to set the fuses for a 512byte boot partition. I believe the fuse settings should be:
Low = 0xE2
High = 0xD4
Extended = 0xFE
optiboot_atmega328_pro_8MHz.hex (1.35 KB)
Here you go, optiboot for 8MHz for the 328p. It uses 115200Baud
You just need to set the fuses for a 512byte boot partition. I believe the fuse settings should be:
Low = 0xE2
High = 0xD4
Extended = 0xFE
optiboot_atmega328_pro_8MHz.hex (1.35 KB)