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I need to make bootloader with my code.

I discovered a github with bootloaders, but i don't know what to do with it. My experience in use of arduino is limited by burning the default bootloader for ATmega328p

So, is there any simple way just to replace default arduino bootloader code (blinking diod) to anything else?

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  • blinking LED does not have anything common with bootloader Commented Aug 7, 2017 at 21:09
  • Arduino default bootloader comes with small sketch (code), that allows to blink pin 15 (internal arduino led) Commented Aug 8, 2017 at 14:47

1 Answer 1

Reset to default
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Certainly there is. Embedded engineers replace and/or overwrite the bootloaders all the time. Here's an article on the subject but I'll outline the basics.

  1. Select a progamming device. There are numerous devices on the market, from very inexpensive to quite expensive, depending on what else they can do besides program a chip. You can even use another Arduino as a programmer, probably least expensive of all and readily available.
  2. Connect the programmer to the proper programming pins. For your purposes you'll want the ISP/ICSP headers (2x3 header(s)) on the board, or 2x3 connector to an non-Arduino programmer.
  3. Upload your code using the Arduino IDE, a utility such as AVRdude, or even Atmel Studio if you're very ambitious and want complete control.

It's not that hard if you use another Arduino as your programmer and 6 female-female jumper wires as outlined in the article.

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