Introduction - If you have any usage issues, please Google them yourself
ATmega128 bootloader support with user program from the programming function (In-System Programming by On-chipBoot Program), which provides a real from the MCU to automatically download and update itself (with read/write at the same time " Read-While-Write" The way) system program code update mechanism for self-programming. Using AVR to this feature, you can achieve in the Application Programming (IAP) and the system automatically updates the remote process applications.