Write firmware to an STM32 via CAN

[BRENO NASCIMENTO SANTOS1]

Hello community members.

I would like to know if it is possible to write firmware to an STM32 via CAN bus?

I intend to implement something for this purpose.

[Tesla DeLorean · Accepted solution]

Which STM32? There's hundreds at this point.

You can write your own firmware/loader to implement all manner of methods. You've got some existing experience with CAN, and a means to deliver data?

The ROM based loader on several STM32 models support CAN, and STM32 Cuibe Programmer supports it via ST-LINK/V3SET

Check the AN2606 Application Note for baseline information about which STM32 models support what methods. There should be another App Note, or Manual on the CAN protocol/methods

[Tesla DeLorean]

https://www.st.com/resource/en/application_note/cd00167594-stm32-microcontroller-system-memory-boot-mode-stmicroelectronics.pdf

https://www.st.com/resource/en/application_note/cd00264321-can-protocol-used-in-the-stm32-bootloader-stmicroelectronics.pdf

https://www.st.com/resource/en/application_note/dm00660346-fdcan-protocol-used-in-the-stm32-bootloader-stmicroelectronics.pdf

https://github.com/madprogrammer/stm32-can-bootloader

[BRENO NASCIMENTO SANTOS1]

Thank you very much for the tip @Community member​