Creation of bootloader for remote firmware updates via UART

[george_b]

Hello all!

I wish you have a great summer so far!


I would like to implement remote firmware update on a PIC (16F & 18F) target devices.

After a few minutes of reading, I learned that I will need a bootloader burned in to the flash of my device.
Then this bootloader will handle the image which will be send serially via UART hardware pins.


First i will try to achieve firmware upload to the desired target device with a UART to USB serial connector.

Then I will move on a wireless serial communication device like HC-12 module and try to achieve the same firmware upload wirelessly.

The devices i am interested to use are 18F4680,18F46k80,18F4523.

Is there any instruction or application manual for creating the bootloader?

What else am I missing to achieve my goal?


Thank you in advance

Best Regards
George

[mnfisher]

Take a look at https://ww1.microchip.com/downloads/en/ ... 00851b.pdf

A Microchip bootloader for MCUs that allow self-programming....

Martin