OTA DFU Thread: board not found

[AS_Kalpa]

Hi all,

I'm working on this example: https://infocenter.nordicsemi.com/index.jsp?topic=%2Fsdk_tz_v3.2.0%2Fthread_example_dfu.html

I'm struggling on the server part, I have a nrf52840 board from Adafruit.

If I erase the board and power on with the PC I don't have a COM port opened so I can't perform the code 

nrfutil dfu thread -f -pkg app_dfu_package.zip -p COM3 --channel 11 --panid 43981 -r 4 -rs 5000 -a FF03::1 

and I receive back the "board not found" error.

I tried to flash the bootloader on the board and now I have an assigned COM

but the error is still the same.

Thanks for the help!

(nrfutil version: 5.2.0)

[AS_Kalpa]

did anyone try to implement OTA DFU Thread exploiting something different respect to NRF52 DK as DFU server?

[Charlie]

Hi AS_Kalpa,

Did you see the device on the device manager? 

Which terminal you are using? Maybe you can try with Windows Command Prompt?

Charlie

[AS_Kalpa]

Hi Charlie,

I got that NRF52 DK is quite different respect to Adafruit NRF52840 and NRF52840 dongle so I have to use another way to make it working.

First of all, I got that I have to flash the connectivity fw following GitHub - NordicSemiconductor/pc-ble-driver at v4.1.1, so:

nrfutil dfu usb_serial -pkg connectivity_x.x.x_usb_with_s<x>_<a>.<b>.<c>_dfu_pkg.zip -p <serial port>

Then, I think that I should run the nrfutil dfu thread command line:

nrfutil dfu thread -pkg app_dfu_package.zip -p COM12 --channel 11 --panid 43981 -r 1 -rs 5000 -a FF03::1

without the "-f" parameter cause I already have the connectivity fw flashed.

But I receive back this error:



It seems like my connectivity fw is wrong, but I don't know where I can find the right one.

Thanks

[Charlie]

Hi AS_Kalpa,

The example uses nRF52840DK as a DFU server. nRF52840 Dongle cannot be used as a DFU server by far, so you will not able to use Adafruit NRF52840 either.

You can find some explanation here: (+) OpenThread DFU server - Nordic Q&A - Nordic DevZone - Nordic DevZone (nordicsemi.com)

Charlie

[AS_Kalpa]

Hi Charlie,

I've found this release note for nrfutil v6.1 that says that we can flash connectivity fw automatically with nrfutil on a nrf52840 dongle

Can you explain better this please?

Another question, is it possibile to have source code for this kind of fw?

Thanks in advance