RE: Zigbee FOTA img not confirmed

AHaug — Wed, 19 Jun 2024 10:02:42 GMT

Hi,

[quote user=""]But I didn't found it's use in any Zigbee examples.[/quote]

The Zigbee light sample has Zigbee fota support: See the section regarding extensions for how to enable forta https://docs.nordicsemi.com/bundle/ncs-latest/page/nrf/samples/zigbee/light_switch/README.html#configuration_files_for_sample_extensions

[quote user=""]

Is it called from bootloader? Do I need to use it in main.c?

[/quote]

For the update procedure Zigbee is only handling the image transport from the DFU image distribution source to the target(s). After the new update image has been placed within the MCUboot application secondary partition, then it is the bootloader, i.e MCUboot, that handles the update procedure

The device receives DFU chunks and processes them with ota_process_chunk(), which in turn calls ota_process_firmware() which in the end uses DFU multi-image library in NCS to move the image. After this, MCUBoot takes over the procedure.

For more information regarding general DFU in NCS as well as multi-image DFU, please refer to https://academy.nordicsemi.com/courses/nrf-connect-sdk-intermediate/lessons/lesson-8-bootloaders-and-dfu-fota/. I also recommend that you go through the light switch sample I mentioned and test DFU with the DFU configuration enabled

Kind regards,
Andreas