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Guyzmo's blog · Jan 15, 2014

AVR bootloaders: reboot into bootloader

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When dealing with firmware updates, you need to make the AVR reboot into bootloader. And there are lots of solution when you try to do that: either you force a reboot using the ‘reset’ button, and try to launch the avrdude command just 42ms after hitting the switch, or you can use the not always wired up and not always working properly DTR line pushed down, or you can wire a pin to the…

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