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

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

Edvin — Tue, 18 Jun 2024 10:49:51 GMT

Great to hear! Then that was the issue, that the area where the network data was stored was not empty. Perhaps it had some old network data, so it was just looking for that old network, not advertising as a new node.

Sorry for the delay. Let me know if you encounter any other issues.

Best regards,

Edvin

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

cyriactoms — Mon, 17 Jun 2024 13:07:58 GMT

Its working Thank You Edvin

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

Edvin — Mon, 17 Jun 2024 11:27:22 GMT

Hello,

I found the one that I was thinking of. It is linked in my colleague, Jørgen's reply in this ticket:
RE: Do an erase all like segger for DK but for dongle on nRFConnect

Try this, and then re-program the application, and make sure you start with an empty network on your phone. Let me know if that doesn't work.

Best regards,

Edvin

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

cyriactoms — Sat, 15 Jun 2024 05:53:51 GMT

ok thanks for the concern

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

Edvin — Fri, 14 Jun 2024 20:38:39 GMT

That is correct. The issue is that the bootloader in the dongle doesn't erase the entire flash of the dongle. Only the part that is needed for the application. The network data for a mesh network is stored at the very top of the flash, so if it was previously used for something else, then there may be old data on the top of the dongle. And since the dongle doesn't have a debugger, there is no way to delete this data.

It is of course possible to delete it, but we don't have any tools to do it. I am sorry, but I was busy the last couple of days, having to do some other stuff, so I didn't get time to write an application. I will try to do it on Monday.

Sorry for the delay.

Best regards,

Edvin

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

cyriactoms — Thu, 13 Jun 2024 06:34:34 GMT

Hello,

i will explian how i am flashing the code

i will build the light fixture through the vscode nrf connection vs code extension pack.

by using nrf connect desktop i will add the hex file which is builded and flash it to the dongle after making the dongle to bootloader mode.

Is this the method correct or should i need to do anything more

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

cyriactoms — Thu, 13 Jun 2024 06:03:24 GMT

yess i have done reset mesh network several times but its getting the same.

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

Edvin — Wed, 12 Jun 2024 21:45:06 GMT

Hello,

Can you please try to reset the network in you nRF Mesh application?

It may differ in iOS and Android, but on iOS you'll find it under the Settings tab (in the nRF Mesh app) -> Reset Mesh Network (Forget Network).

Have you (or someone) used the dongles for a Mesh application before, and provisioned it into another Mesh network? It struck me that they may have old network data stored in the flash, which may not be overwritten by the DFU process in the nRF Connect for Desktop -> Programmer app. Unfortunately, there is no simple way of telling whether the flash has old network data present.

Let me know if resetting the Mesh network on the phone doesn't work, and I will see if I can find/write a small application that will delete the network data pages on the dongle.

Best regards,

Edvin

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

cyriactoms — Wed, 12 Jun 2024 09:51:54 GMT

Does it have any problem with the softdevices.

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

cyriactoms — Wed, 12 Jun 2024 09:24:09 GMT

After flashing the hex file you have provided. In the serial terminal i am getting it like in the screenshot i have provided earlier. Bluetooth is initialising but the mesh is not initialised. in nrf connect app it is able to connect with bluetooth but in nrf mesh app it is not showing for provision. Is it a problem regarding the dongle. i have got 3 dongles in three of them i am having the same problem.

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

Edvin — Wed, 12 Jun 2024 08:37:02 GMT

Can you please try to flash the attached .hex file:

devzone.nordicsemi.com/.../test_5F00_sample.hex

And try to scan for it in the nRF Mesh app.

Do you see it? If not, can you try to scan using the nRF Connect for Desktop/iOS/Android? Do you see it there? (It should be using the advertising name "Mesh Light Fixture".

Best regards,

Edvin

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

cyriactoms — Tue, 11 Jun 2024 13:51:42 GMT

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

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

Edvin — Tue, 11 Jun 2024 12:14:20 GMT

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

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

cyriactoms — Tue, 11 Jun 2024 09:39:38 GMT

I am attaching my code with build folder

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

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

Edvin — Tue, 11 Jun 2024 08:46:35 GMT

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

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

cyriactoms — Tue, 11 Jun 2024 07:07:40 GMT

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

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

cyriactoms — Tue, 11 Jun 2024 06:14:57 GMT

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.

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

Edvin — Mon, 10 Jun 2024 13:08:57 GMT

Hello,

[quote user="cyriactoms"]Should i need to flash firmware before flashing the code[/quote]

Not really sure what you mean by this.

[quote user=""]I have flashed the light_ctrl hex file in nrf52840 dongle.[/quote]

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

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

cyriactoms — Mon, 10 Jun 2024 09:14:51 GMT

Should i need to flash firmware before flashing the code