Does anyone know if the standard Arduino IDE distribution contains a Mega 1280 bootloader that disables the watchdog after a reset like it's supposed to do?
My own experiments suggest that it still doesn't so you end up in a boot loop once the watchdog has been triggered.
There was a thread back in 2013 that discussed this issue for the Mega 2560
http://forum.arduino.cc/index.php?topic=142071.0
This page talks about a fix for the 2560
If there is still no official fix for the 1280?
Does MegaCore's bootloader handle it correctly? GitHub - MCUdude/MegaCore: Arduino hardware package for ATmega64, ATmega128, ATmega165, ATmega169, ATmega325, ATmega329, ATmega640, ATmega645, ATmega649, ATmega1280, ATmega1281, ATmega2560, ATmega2561, ATmega3250, ATmega3290, ATmega6450, ATmega6490, AT90CAN32, AT90CAN64 and AT90CAN128
I don't have a 1280 to test but I'd be willing to bet that the MegaCore bootloader will correctly handle watchdog resets since it's optiboot.
Since we haven't gotten an official fix for this issue even on boards that are still being manufactured it's unlikely that we will see one for the Mega 1280 anytime soon.
Thanks for the help, Megacore fixed the 1280 watchdog problem for me.