Provisioning error in Light Switch server (NRF52832)

[Dmitro Balo]

Hello! I am trying to run the "Light switch" example on a custom board.

My environment:
- nRF5 SDK v17.0.2
- nRF5 SDK for Mesh v5.0.0
- SoftDevice S132 v7.2.0
- NRF52832_xxAA (on custom board)
- Keil uVision 5.33.0 (Compiler v5)
- J-link debugger
- nRF Mesh App v3.1.6 for Android

I'm using Keil's built-in MDK. When trying to add a device to the network, nRF Mesh reports an error:

The example code remained unchanged, except for the fact that I commented out all calls related to the board (controlling the LEDs). After the error occurs, my log looks like this:

While debugging, I was able to figure out that the "m_device_provisioned" flag is set to "true" at this location:

However, after that, the GATT connection is closed, as evidenced by the call to the "a_link_close_notify" function, which informs subscribers about the NRF_MESH_PROV_LINK_CLOSE_REASON_ERROR error:

Call stack up to this function:

When compiling the project, I see that some of the declared sections do not have observers registered, but the project starts successfully:

I hope for your help!

[Dmitro Balo]

Hello Hung!

I have to connect to a node to manually complete the configuration, however after clicking the "connect" button it searches endlessly for nodes, my node is no longer found. I got some additional debug info:

The first and second logs are received under the same conditions (provisioning process), however sometimes the node itself drops the connection and sometimes the smartphone does it.
Unfortunately at the moment I don't have a DK, only our board.

[Hung Bui]

Hi Dmitro, 

Would the unmodified example run on your board ? I assume if it's just the GPIO difference it should still work. 

I don't fully understand why you use NRF Connect to connect to the board. What you need to do after provisioning interrupted is to use nRFMesh app to connect to a Proxy node (Click on Connect) either the exact node or other node that's already in the network. After that you should be able to click on the node and Configure it.