Check if MCUSR is correctly handled

per1234 / Ariadne-Bootloader

Arduino TFTP bootloader for W5100 Ethernet controller(Arduino Ethernet, Ethernet Shield, etc.)

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Open per1234 opened 8 years ago

per1234 commented 8 years ago

MCUSR is the reset cause flag but the original value is not preserved in many bootloaders. See https://github.com/Optiboot/optiboot/pull/158 etc. for more information.