Implement MCUBoot to custom board with dongle's bootloader

[JuanAlm]

I have a custom board with the same hardware configuration than dongle pca10059. This board has the same bootloader than the dongle but I need to upgrade the firmware in a buttonless way.

I found this guide:

https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/zephyr/boards/arm/nrf52840dongle_nrf52840/doc/index.html#option-2-using-mcuboot-in-serial-recovery-mode

The option 2 indicates a way to implement MCUBoot but its not a buttonless option, cause you have to switch on the device with SW1 buttom pushed. Is there any way to implement within my board a buttonless bootloader?

[Simonr]

Hi

The buttonless version of DFU in the nRF Connect SDK would be the SMP (Simple management protocol) server, which is a basic transfer encoding for use with the MCUmgr manager protocol. More info on that can be found in Device Management. We have an SMP Server sample available here to flash a sample image onto a board.

Best regards,

Simon