Icsp arduino boot loader protocol - Bootload an ATmega Microcontroller Build Your Own
The Arduino Leonardo is a microcontroller board based on the ATmega32u4 ( an ICSP header, and a reset It communicates using the AVR109 protocol.
Arduino Bootloader with Olimex AVRISP500. serial Another little trick I discovered is you can program the Arduino using the ICSP.
Arduino Leonardo refused to accept a new sketch once a very large one was uploaded (code memory). The board would hang just after the upload started (and power.
QA for developers of opensource hardware and software that is compatible with Arduino
ICSP custom cables and Arduino. ICSP stands for In Circuit Serial Programming, to connect the Arduino to the microcontroller to upload the boot loader.
And of course ICSP programming still SelfFlashing with the Bootloader.