BLE_DFU_ENABLED Flag

[E.Cho]

SoC: nRF52810

SDK: 17

Hello,

I want to confirm whether BLE_DFU_ENABLED is used or not.

InfoCenter (https://infocenter.nordicsemi.com/topic/sdk_nrf5_v17.0.2/group__ble__dfu__config.html) is saying we should set it to 1 to active DFU service. However, I am still able to OTA my unit without this flag enabled in my sdk_config.h, and BLE_DFU_ENABLED flag isn't referenced anywhere in the project.

I also saw this DevZone post (https://devzone.nordicsemi.com/f/nordic-q-a/46869/ble_dfu_enabled-not-used-in-library) who asked the same question I'm asking, but 2 years ago. IF this flag were deprecated at least 2 years back, why is this flag still being guided in the latest SDK in InfoCenter?

Before I make any decision on what I should do with this flag, I just wanted confirmation from Nordic on whether this flag is actually used or not.

Thank you

[tesc]

Hi,

I can confirm that BLE_DFU_ENABLED is not used. The only occurrences are in sdk_config.h files, for defining it (and for checking if it is defined in order to define it if not.) After getting defined it is not used anywhere in the SDK, in any example nor any module.

Regards,
Terje