I am just learning bootloading and Arduino ISP for a remote firmware update project. I read some posts online about the format of the .HEX file. It all makes sense until I realized that the first 512 bytes of UNO or first 4KB of MEGA 2560 are for bootloaders. My .HEX file has address starting from 0…

Bootloader question: Does it skip the first X bytes of the .HEX file?

mrburnette April 25, 2014, 8:45pm 15

@liudr,

Ray