ble_app_hrs_c example fails reconnect on SDK 15.2.0

RE: ble_app_hrs_c example fails reconnect on SDK 15.2.0

Hung Bui — Fri, 08 Feb 2019 11:08:48 GMT

Could you let me know what's the problem you have with the sniffer ? It's very important to get the sniffer trace to really understand what's wrong.

Also please capture another log with the full log from the time you bond to the device (first connection ) . Before testing please make sure you erase the flash fully and delete bond on the Polar.

RE: ble_app_hrs_c example fails reconnect on SDK 15.2.0

Jacques — Thu, 07 Feb 2019 14:55:38 GMT

I can't get a trace going, but here is the debug output for an initial connection to an HRS, disconnect, and (attempted) reconnect. Same dev board and sensor.

The sdk15.2.0 example returns the error "PM_CONN_SEC_ERROR_PIN_OR_KEY_MISSING" (0x4102) on the first connection (unless you erase the chip first) but still accepts heart rate notifications the first time. On reconnect, it doesn't accept notifications, regardless of whether or not you erase the chip first. Something is not working in the peer manager...

devzone.nordicsemi.com/.../sdk15_5F00_2_5F00_0.txt devzone.nordicsemi.com/.../sdk14_5F00_2_5F00_0.txt

RE: ble_app_hrs_c example fails reconnect on SDK 15.2.0

Hung Bui — Thu, 31 Jan 2019 12:24:30 GMT

Hi,

I don't know how the Polar works particularly. If you test with the phone do you see the same problem ?

Could you capture sniffer traces when testing with SDK v14.2 and when testing with 15.2 ?

RE: ble_app_hrs_c example fails reconnect on SDK 15.2.0

Jacques — Fri, 25 Jan 2019 13:51:40 GMT

Also, like I said, This works fine on SDK v14.2.0, with the same heart rate sensor

RE: ble_app_hrs_c example fails reconnect on SDK 15.2.0

Jacques — Fri, 25 Jan 2019 13:48:48 GMT

It would be normal for the Polar to not store the bond information, wouldn't it? It is a commercial heart rate sensor after all, and has the role of peripheral.

RE: ble_app_hrs_c example fails reconnect on SDK 15.2.0

Hung Bui — Fri, 25 Jan 2019 13:45:19 GMT

It sounds like the Polar heart rate didn't store the bond information of the nRF52.

If you can provide a sniffer trace we can see it more clearly.

If you test it with a phone, do you see the same problem ?