Central client service db discovery does not find, or trigger the find complete event.

[shn]

Hello

I'm using the Development kit nRF52840, SDK 15.3.0, and the Sofdevice s140 6.1.1

I've created a BLE  Battery client service, my implementation is extended upon the example experimental/ble_app_hrs_rscs_relay. 

I can advertise services, but when i try to connect to a service i can't find them.

I get as far as this:

<debug> ble_db_disc: Starting discovery of service with UUID 0x180F on connection handle 0x0.
<debug> nrf_ble_gatt: Peer on connection 0x0 requested a data length of 27 bytes.
<debug> nrf_ble_gatt: Updating data length to 27 on connection 0x0.
<debug> nrf_ble_gatt: Data length updated to 27 on connection 0x0.
<debug> nrf_ble_gatt: max_rx_octets: 27
<debug> nrf_ble_gatt: max_tx_octets: 27
<debug> nrf_ble_gatt: max_rx_time: 328
<debug> nrf_ble_gatt: max_tx_time: 2120
<debug> nrf_ble_gatt: ATT MTU updated to 247 bytes on connection 0x0 (response).

The program it self does not crash, it simply never emits the _BLE_BAS_C_EVT_DISCOVERY_COMPLETE_

So my question is what is required to make that event happen?

I'm testing up against the nRF Connect app, when i'm using the example ble_central/ble_app_hrs_c - it can read the value

[Edvin]

Hello,

Have you looked at the ble_app_hrs_c example found in SDK\examples\ble_central\ble_app_hrs_c?

Did you remember to add ble_bas_on_db_disc_evt(&m_bas_c, p_evt) in main.c -> db_disc_handler()?

Does db_disc_handler() get called at all?

Best regards,

Edvin

[shn]

I found out the problem was that the db_discovery instance was instanciated wrong(in a scope). I got it fixed, now i get a READ/WRITE API error return.