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Questions tagged [bootloader]

Refers to the code burned on the Arduino flash memory that runs every time the board is powered up. It starts the execution of user-loaded programs and allows uploading sketches from a PC through the USB connection. This tag should be used for questions about modifying, changing, uploading the default bootloader.

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12
votes
3answers
12k views

What alternatives are there to the Optiboot bootloader?

Nearly all modern Arduino boards use the Optiboot bootloader. Compared to the ATmegaboot used before, this is smaller in flash terms (by about 1.5KB) and faster in upload speed (115.2k vs 57.6k) and ...
20
votes
2answers
55k views

How do I burn the bootloader?

I was instructed to "burn the bootloader" to my Arduino to fix an error I was getting. How can I do this? (And what exactly is the bootloader?)
15
votes
2answers
3k views

Yún boot from SD card

I have an Arduino Yún, and it only has 16mb flash onboard for the Linux. I was wondering of it is possible to put a bootloader on the flash that uses the sd card as a rootfs? i want to be able to do ...

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