nrf BLE mesh sample light_fixture not showing in nrf mesh application after flashing with nrf connect desktop in to nrf52840 dongle

[cyriactoms]

I have flashed the light_ctrl hex file in nrf52840 dongle. Flashing Have been completed sueccessfully for provisioning in nrf mesh application its not showing in the network. to connect with light switch to create a mesh.

[cyriactoms]

Should i need to flash firmware before flashing the code

[Edvin]

Hello,

cyriactoms said:

Should i need to flash firmware before flashing the code

Not really sure what you mean by this.

I have flashed the light_ctrl hex file in nrf52840 dongle.

what .hex file did you use? One that you built yourself, or a precompiled one? If you built it yourself, what SDK version were you using? Was it built particularly for the nRF52840 dongle, or the nRF52840 DK? Is it possible upload the .hex file here?

Best regards,

Edvin

[cyriactoms]

Hi Edvin

I have been flasing a .hex which is generated after building the project. i am flasing it using nrf connect desktop  (path - build/zephyr/zephyr.hex)

The SDK version i am using is v2.6.99-cs1

I have builded an example for nrf mesh which can be flashed to the nrf52840 dongle using nrf connect desktop.

flasing is done sucessfully but in nrf connect applicaton its not showing the device to provision.

[cyriactoms]

In the serial terminal after flasing its showing like this. Bluetooth initialized but mesh not getting initialised

[Edvin]

First, can you please try to use the v2.6.0 version of NCS? I know it seems like it would make sense to use the cs-1 as it is newer, but this is an experimental build of the SDK, targeting some new chips. For the nRF52 and nRF53 series, please stick to the stable version, v2.6.0, or v2.6.1. If changing to this version alone doesn't work:

Can you please share some screenshots of how you built the application? Can you also please zip the application folder (including the build folder), and upload it here? You can drag and drop the zipped folder into the text window that you reply in.

Part of the challenge here is that the logs are capped, so we can't see whether it starts successfully or not. The fix for this is to reset the device, but this is not possible with the dongle without unplugging it, because the reset button on the dongle will put the device in DFU mode, so it will not start the application.

NB: I tested the unmodified light_ctrl sample built for the board nrf52840dongle_nrf52840 (both build\zephyr\zephyr.hex and build\zephyr\merged.hex) in NCS v2.6.1, and it worked as expected. 

Best regards,

Edvin

[cyriactoms]

I am attaching my code with build folder

https://drive.google.com/file/d/1i2O5pRRJbxJficguQxR2HObf3M2pzqfA/view?usp=drive_link

[Edvin]

How did you flash your build\zephyr\zephyr.hex file? When I flashed it, it ran without any issues. I used the nRF Connect for Desktop -> Programmer app to program the .hex file. How did you do it?

Best regards,

Edvin

[cyriactoms]

Yess i used the same for flashing it. Is it the problem with my dongle. But i am able to flash blinky example and all and its working fine.   I am getting the error which i have shared in the screenshot