Error run multi NUS

[Giang]

Hi all, I encountered a problem , when I connect 1 board central to 2 board peripheral via NUS . It connected and discovery success . But at

static void db_disc_handler(ble_db_discovery_evt_t * p_evt)

{

ble_nus_c_on_db_disc_evt(&m_ble_nus_c[p_evt->conn_handle], p_evt);

printf("db_disc_handler [0x%x]\r\n",p_evt->conn_handle);

}

my central board run this funtion several times before run correct . As picture :

If you also encountered this problem . Pls send me advice . Thank !!

[Hung Bui]

@Giang: please also print the event you receive in the handler, not just connection handler. Also make sure when you trigger service discovery, you start discovery on correct connection. Also state which SDK you are using.

[Giang]

Hi Mr.Hung Bui, I get event_type and it display as :

db_disc_handler [0x0]- event:BLE_DB_DISCOVERY_ERROR

db_disc_handler [0x0]- event:BLE_DB_DISCOVERY_ERROR

db_disc_handler [0x0]- event:BLE_DB_DISCOVERY_ERROR

dScanning...

Connected

Scanning...

db_disc_handler [0x0]- event:BLE_DB_DISCOVERY_ERROR

db_disc_handler [0x0]- event:BLE_DB_DISCOVERY_ERROR

db_disc_handler [0x0]- event:BLE_DB_DISCOVERY_ERROR

Connected

Full connect

db_disc_handler [0x0]- event:BLE_DB_DISCOVERY_COMPLETE

db_disc_handler [0x1]- event:BLE_DB_DISCOVERY_COMPLETE

But I don't know why it error , can you give me advice

[Giang]

After BLE_DB_DISCOVERY_ERROR, central will be reset

[Hung Bui]

You will need to check what is the err_code and why you have that error. You need to check when discovery_error_evt_trigger() is called and which function throw the error. I assume you understand the purpose of the db_discovery module ?