nRF5340 Simultaneous multi-image DFU OTA over BLE

[Eighth]

Hello!

I'm struggling to make simultaneous multi-image DFU OTA to work on nRF5340DK. Is there a coherent guide on how to set it up from Zephyr perspective and what software to use on Android smartphone to test it?

There's a mention of "Updating Nordic Thingy:53 firmware" article in the documentation section about Thingy:53. However, the link leads to "Page not found"! So, I don't even have access to a reference implementation to look into. Besides, all of nRF applications in Google Play released in 2020, so I'm not even sure if they support multi-image DFU.

At this point I'm pretty lost, confused and frustrated. Would appreciate any help.

Best regards,

Vladislav

[Øyvind]

Hello, 

At this point I'm pretty lost, confused and frustrated. Would appreciate any help.

Sorry to hear that. I hope that we can solve this issue for you. 

There's a mention of "Updating Nordic Thingy:53 firmware" article in the documentation section about Thingy:53. However, the link leads to "Page not found"!

The Thingy:53 is not released yet. As the Working with Thingy:53 documentation states: As of the nRF Connect SDK v1.9.0 release, Thingy:53 is an unreleased product that will be released in the near future.

Besides, all of nRF applications in Google Play released in 2020, so I'm not even sure if they support multi-image DFU.

Did you try? Have you followed the steps provided under FOTA upgrades?

I will need some time to test this myself on a nRF5340 DK. Hope to have an answer by tomorrow.

Kind regards,
Øyvind

[Eighth]

Thanks for your reply, Øyvind!

Øyvind said:

Did you try? Have you followed the steps provided under FOTA upgrades?

Yes, when I use nRF Connect for Android to upload network core update to device with multi-image DFU enabled, it gets placed into application core secondary slot, and gets discarded and erased (because of wrong reset vector) by MCUboot on next restart. I can update network core via mcumgr command-line tool through UART by specifying "-n 1" to select network core secondary slot, but not via nRF Connect for Android.

Best regards,

Vladislav

[Thingy]

I am also struggling. I have attempted and failed to statically configure partitions to add the mcuboot_primary_1 and mcuboot_secondary_1 partitions per the documentation: https://developer.nordicsemi.com/nRF_Connect_SDK/doc/1.7.1/nrf/ug_nrf5340.html#simultaneous-multi-image-dfu