Arduino Uno bootloader on Mega2560

Other Hardware 3rd Party Boards
1

Hi to everyone,

I am using Xbee series 1 on my Arduino Mega2560 and the communication works well, but now I need to upload wirelessly my sketches and it doesn't seem to be possible. I tried by pressing the reset button during the upload, but I found that this works for the Arduino Uno but not for the Mega2560. It seems to be necessary to change the bootloader, so my question is:

is it possible to upload the Arduino Uno bootloader on an Arduino Mega2560?

If yes, how can I do that using another AVR as an ISP? After having uploaded the sketch "ARduinoISP" on the programmer board and selected "Arduino as ISP", should I select the board->Arduino Uno and then "burn the bootloader"?

Thank you for your help!

2

The UNO bootloader (optiboot) will NOT run on an atmega2560. Neither it nor the protocol it uses supports more than 128k bytes of flash.