Porting zephyr BT Mesh onoff-app to nrf52840 Dongle

RE: Porting zephyr BT Mesh onoff-app to nrf52840 Dongle

Carlos Galiana — Tue, 01 Feb 2022 11:25:45 GMT

Hi Hung Bui. Thanks a lot.

RE: Porting zephyr BT Mesh onoff-app to nrf52840 Dongle

Hung Bui — Tue, 01 Feb 2022 08:47:19 GMT

Hi Carlos,
You can find the MBR in nRF5_SDK_17.1.0_ddde560\components\softdevice\mbr\hex folder.
You can compile and flash the bootloader at nRF5_SDK_17.1.0_ddde560\examples\dfu\open_bootloader\pca10059_usb

There is a blog here that would give some more information.

Note that if you already solder the 10 pins connector, you don't really need the bootloader. You can use the dongle the same way you use the Dev Kit.

RE: Porting zephyr BT Mesh onoff-app to nrf52840 Dongle

Carlos Galiana — Fri, 28 Jan 2022 11:03:28 GMT

Hi helsing,

I have the same problem with my dongle. I programmed the dongle with a ligth switch example and I was able to find the device with the Mesh App. Then, I reset the nodes (a DK and two Dongles) and I could not find any of them. I erased all form the DK and now the mesh app detected it, but I dont know what to do with the Dongles and with the MBR and bootloader. I understand the fact that I have to connect the DK and the dongle throught 10 pin connector in order to erase all the memory, but I dont Know where I cant find the bootloader and the MRB to reload them in the dongle again. ¿Am I correct about your solution? ¿Where can I find the MRB and the bootloader?

Thanks for your time.

RE: Porting zephyr BT Mesh onoff-app to nrf52840 Dongle

helsing — Fri, 06 Nov 2020 15:18:42 GMT

Hi kratenko,

I programmed the dongle using Programmer v1.4.7 from nRF Connect v3.6.0, and I was able to see the node in the nRF Mesh app on my Android device. I compiled the app using ncs v1.3.1. The dongle had one green light I was able to toggle this if I clicked multiple times on SW1.

It is likely that your dongle already is flashed with an MBR and perhaps also a softdevice(like S140).

The best solution would be to solder the 10 pin connector and erase everything on the dongle. The second best(if you don't want to solder the connector) would be to erase the softdevice and only keep the MBR + bootloader.

I will get back to you over the weekend with more details.

Best regards,

Håkon

RE: Porting zephyr BT Mesh onoff-app to nrf52840 Dongle

helsing — Tue, 03 Nov 2020 11:09:51 GMT

Hi kratenko,

Thank you for your patience. I will give you a short update this afternoon on what I think could be the issue.

Best regards,

Håkon

RE: Porting zephyr BT Mesh onoff-app to nrf52840 Dongle

helsing — Fri, 23 Oct 2020 09:04:04 GMT

Sorry for the delay here. I am still working on this.

Best regards,

Håkon

RE: Porting zephyr BT Mesh onoff-app to nrf52840 Dongle

helsing — Wed, 14 Oct 2020 13:27:19 GMT

Hi,

Thank you for the thorough description. I have briefly looked through and I will dig further into this tomorrow.

Best regards,

Håkon