RE: NRF5340 firmware update using STM32 controller via serial recovery mode

Vidar Berg — Wed, 05 Feb 2025 12:54:36 GMT

Hi,

If your nRF5340 can receive the firmware image from the main application, you can use the DFU target library to stage updates in the secondary slots. It does not matter how the .bin files are transferred to the device if you would prefer to use another transfer method than SMP. With serial recovery, you are limited to the SMP protocol unless you are prepared to customize the bootloader.

[quote user=""]however, i failed to implement it since i could not get proper data packeting and encoding format. [/quote]

I would compare it with the packets sent by the MCUmgr tool to see what the differences are.

Best regards,

Vidar