Over the air firmware update (OTA DFU) in NRF Connect SDK excluding SoftDevice

RE: Over the air firmware update (OTA DFU) in NRF Connect SDK excluding SoftDevice

CRNorris — Thu, 05 Aug 2021 15:07:45 GMT

Thank you, that's helpful

RE: Over the air firmware update (OTA DFU) in NRF Connect SDK excluding SoftDevice

Sigurd — Thu, 05 Aug 2021 15:07:15 GMT

[quote userid="102658" url="~/f/nordic-q-a/78262/over-the-air-firmware-update-ota-dfu-in-nrf-connect-sdk-excluding-softdevice/323585#323585"]Is this on the roadmap for NCS or is it impossible for the foreseeable future?[/quote]

Impossible for the foreseeable future. A solution could be to add some external flash chip to your PCB. https://developer.nordicsemi.com/nRF_Connect_SDK/doc/1.6.1/nrf/ug_bootloader_external_flash.html

RE: Over the air firmware update (OTA DFU) in NRF Connect SDK excluding SoftDevice

CRNorris — Thu, 05 Aug 2021 14:47:44 GMT

OK, thanks for the information. Is this on the roadmap for NCS or is it impossible for the foreseeable future?

RE: Over the air firmware update (OTA DFU) in NRF Connect SDK excluding SoftDevice

Sigurd — Thu, 05 Aug 2021 14:46:26 GMT

[quote userid="102658" url="~/f/nordic-q-a/78262/over-the-air-firmware-update-ota-dfu-in-nrf-connect-sdk-excluding-softdevice"]Is it possible to set up an NRF Connect SDK project such that the firmware can be updated over BLE, without including the SoftDevice in the update?[/quote]

Unfortunately, no. That is not possible in NCS.

RE: Over the air firmware update (OTA DFU) in NRF Connect SDK excluding SoftDevice

0x4141 — Thu, 05 Aug 2021 08:59:26 GMT

Ah, sorry. This was based on nRF 5 sdk, I do not know if it applies to nRF connect sdk as well.

RE: Over the air firmware update (OTA DFU) in NRF Connect SDK excluding SoftDevice

CRNorris — Thu, 05 Aug 2021 08:36:01 GMT

Thanks for the reply. Is this suitable for NRF Connect SDK (Zephyr) or just nRF5 SDK?

RE: Over the air firmware update (OTA DFU) in NRF Connect SDK excluding SoftDevice

0x4141 — Thu, 05 Aug 2021 08:15:45 GMT

Yes this is fully possible, make a DFU zip using only your application hex-file. For example by using:

$ nrfutil pkg generate --application "your application name".hex --application-version-string "your application version" --hw-version 52 --sd-req "your softdevice version" --key "your key path"

Where you will have to fill in the names and settings in quotations ("") by yourself. You can find the SoftDevice version using:

$ nrfutil pkg generate --help

As long as this application uses the same SoftDevice as your previous application, the DFU process should be successful.