nrf52840 DFU regarding.

RE: nrf52840 DFU regarding.

Vishnu — Tue, 22 Oct 2019 12:30:06 GMT

Thanks for the reply!

RE: nrf52840 DFU regarding.

Einar Thorsrud — Tue, 15 Oct 2019 12:36:15 GMT

Hi,

The simplest way to implement this is using the SDK bootloader, and trigger DFU mode from the application by writing to the retention register before resetting the device to enter DFU mode. This is the same approach that is used by the buttonless DFU example, where this is implemented in the DFU service, specifically in ble_dfu_buttonless_bootloader_start_finalize() in components\ble\ble_services\ble_dfu\ble_dfu.c. You can see that this is checked in the bootloader implementation in dfu_enter_check() in components\libraries\bootloader\nrf_bootloader.c.

RE: nrf52840 DFU regarding.

Vishnu — Tue, 15 Oct 2019 07:20:57 GMT

hey thanks!Gaétan However i am able to do with button DFU. I will try Buttonless as well.

RE: nrf52840 DFU regarding.

Gaétan — Tue, 15 Oct 2019 06:52:05 GMT

Hi,

In the SDK You can find an example: https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk5.v15.3.0/examples_bootloader.html

Regards,