Trouble Logging Heartbeat

RE: Trouble Logging Heartbeat

Hieu — Fri, 19 Apr 2024 07:45:57 GMT

Hi Toni,

I agree that what you notice about memory partition sounds like a possible root cause for the NetKey issue.

It's good to hear things are otherwise working as expected.

Best,

Hieu

RE: Trouble Logging Heartbeat

toni95 — Fri, 19 Apr 2024 07:40:15 GMT

Hi Hieu,
No problem! Thank you for this answer. Now it's working properly.
Although I have not checked your suggestions reagrding the NetKey I think I might know where this is coming from. Since I use nrf52840dongles besides one nrf52840DK I have custom memory partitions. This might be the case, but for now this is not a problem since everthing is working as supposed.

Best
Toni

RE: Trouble Logging Heartbeat

Hieu — Wed, 17 Apr 2024 12:58:22 GMT

Hi Toni,

My apology for taking such a while. I believe the reason the callback was not properly registered is because you put BT_MESH_HB_CB_DEFINE() inside a function instead of outside. See how it's used in the Mesh Demo sample: sdk-zephyr/samples/bluetooth/mesh_demo/src/main.c at v3.5.99-ncs1 · nrfconnect/sdk-zephyr (github.com).

Regarding your new issue with the Unknown Netkey error log, the error indicates that the BT Mesh stack cannot find the NetKey with index 0x00.
Given the context, could you check if it can be one of these more likely cases?

Calling Hearbeat APIs that requires the NetKey before the NetKey is restored from non-volatile memory, most often with settings_load().
The Settings partition being corrupted, most often from accidental/incorrect Settings/NVS flash writes, i.e. when you have custom flash memory write operations.
Calling Heartbeat APIs on an unprovisioned node.

Best,

Hieu

RE: Trouble Logging Heartbeat

toni95 — Wed, 17 Apr 2024 08:56:34 GMT

I noticed that at initialization there is an error regarding the hb feature:

[00:00:00.022,613] <inf> bt_hci_core: No ID address. App must call settings_load()
Bluetooth initialized
[00:00:00.022,827] <inf> sensor_client: Heartbeat callback structure defined

[00:00:00.295,257] <err> bt_mesh_hb: Unknown NetKey 0x0000

I don't know where this is coming from...
Best,
Toni

RE: Trouble Logging Heartbeat

Hieu — Fri, 12 Apr 2024 13:37:20 GMT

Hi Toni,

Sorry but it has been a bit of time since I went into the Heartbeat feature. My apology but I will need some time to refresh my knowledge.

I will get back to you soon.

Best,

Hieu