OTA DFU on NORA B1

[Jirik]

Hello,

I have a project working on Nora B1, which I am testing on nrf5340DK. It is based on the Peripheral UART Sample, programmed with nfr Connect SDK v1.9.1. Now I need to add the OTA DFU to update the program from the nrf Connect mobile app. I changed the prj.conf and main according to this tutorial

https://getwavecake.com/blog/adding-ota-dfu-to-a-nordic-zephyr-project/

It works perfectly, when I am testing it on the Development Kit, but it does not work at all on the Nora B1. The flash is succesful, but the BLE can't get initialised.

I tried a bit and it seems like the problem is caused by the line

CONFIG_BOOTLOADER_MCUBOOT=y

when I add this to the prj. conf, BLE does not work, even when I did not do any changes in the main.

Is there anything special I should take care about while configuring bootloader on the NoraB1?

Thanks a lot for any answer

[Menon]

Hello,

Take a look at this case where my colleague is discussing the same thing. I am also attaching a simple sample that I tested inside NCSv2.5.0 for your reference.

lbs_ota_dfu_withoutextflash.zip

Kind Regards,

Abhijith

[Jirik]

Hi Abhijith,

thanks a lot for the sample and for the hint, it works fine on the nRF5340 DK, but unfortunately I still can't run it on the NORA B1 SoC. (even after defining

CONFIG_CLOCK_CONTROL_NRF_K32SRC_RC=y and 

CONFIG_CLOCK_CONTROL_NRF_K32SRC_XTAL=n in prj.conf and child_image\hci_rpmsg.conf)

It looks like there are some more problems than the external flash. But still thanks a lot for helping me eliminate the external flash.

Are there maybe some more hardware caused dependencies?

Kind regards,

Jiri