boot code for Arduino boards

Development Boards Arduino
1

:frowning: OK, I realize I am slow but in the upgrade of the Arduino site I can not find the Boot code (hex file, soure code or compiled) for ANY of the Arduino boards now. Did I miss something or what?

Can anyone please point me to the repository for these files?

Thanks

Dillon

2

It’s part of the Arduino IDE install, off in …/hardware/arduino/bootloaders/*

Hex, source, and listings are all there.

also “optiboot” is a google code project, and you can find mostly newer code there.

3

thanks I will look there and see what I can find. I already have optiboot but was looking code for one of the older processors.

thanks again

4

The arduino distribution contains the older bootloader(s) as well as optiboot.

Note that the current (source from the mercurial repository) optiboot supports more chips than the version distributed with Arduino. I have ATmega8s and ATmega168s as well as ATmega328’s running optiboot, and it’s supposed to support 644 (Sanguino) as well.