USB DFU with nrf connect SDK

[Hinal Tailor]

Hello sir,

I was referred this link (https://github.com/zephyrproject-rtos/zephyr/issues/29921) to do USB DFU on nRF52840-DK, but I am facing an issue in this code is that the code doesn't run after second time power reset. So, I request you to provide some proper reference for USB DFU for nRF52840-DK.

Thanks & Regards,

Hinal Tailor

[Simon]

Include dfu/mcuboot.h to your main application (the one you are uploading), and call boot_write_img_confirmed() after all the initialization is complete, this will avoid rollback. Check out how it's done in the serial lte modem application:

• Including dfu/mcuboot.h
• Calling boot_write_img_confirmed()

Is this approach acceptable, or do you have to confirm it externally via USB?

Best regards,

Simon