This tutorial was written for AVR microcontrollers with an Arduino bootloader using ICSP pins. If you are using an ARM microcontroller with SWD pins, you will need a dedicated programmer (i.e. Atmel JTAG ICE 3 or Atmel-ICE) to connect to the SWD port. For more information, check out our ARM programming
Do you have a bricked Arduino that won't accept code anymore? Or, maybe you wrote your own firmware and would like to upload it to your Arduino? Or, maybe you just want to learn more about the inner-workings of Arduino, AVR, and microcontrollers in general. Well, you're in luck! This tutorial will teach you what a bootloader is, why you would need to install/reinstall it, and go over the process of doing so.
You may want to check out these tutorials before continuing down the bootloader path.
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