nRF5 SDK bootloader with nRF Connect SDK app

[AntonZ]

Hi!

I'm currently developing the bootloader for nRF52840 using the nRF5 SDK v17.1.0 (based on secure bootloader example) and would like to know if this approach will work with the nRF Connect SDK-based app.
The interaction with the bootloader is performed over UART, using another MCU.

[Vidar Berg]

Hi,

Yes, this should work. Our nRF52840-Dongle comes pre-programmed with the Open Bootloader with DFU from the nRF5 SDK, and it supports programming Zephyr applications. 

Note: The 'nrf52840dongle_nrf52840' target configures the Zephyr app to start at 0x1000 so it doesn't overlap with the MBR.  

Best regards,

Vidar

[AntonZ]

Thanks, Vidar!