multilink send data

[Arthur]

Hi, I used the ble_peripheral and ble_central example and I send messages from one to the other.

Know I need to do the same with multilink. I managed to connect ble_multilink_central with a ble_uart but I can't see the messages I send.

should I use NUS functions in multilink_central to receive data ?

I use nRF51 dongle as central, and nRF52 as peripheral.

Any help would be appreciated!

[Arthur]

to be more precise : I send data with this :

le_gatts_hvx_params_t params;
static uint8_t test[2] = {0x24, 0x33};
static uint16_t testLen = 2;
memset(&params, 0, sizeof(params));
params.type = BLE_GATT_HVX_NOTIFICATION;
params.handle = m_lbs.button_char_handles.value_handle;
params.offset = 0;
//params.p_data = test;
params.p_data = (uint8_t*)(&test[0]);
params.p_len = &testLen;
sd_ble_gatts_hvx(m_lbs.conn_handle, &params);

and I try to receive data with this :

    static void lbs_c_evt_handler(ble_lbs_c_t * p_lbs_c, ble_lbs_c_evt_t * p_lbs_c_evt)
 {
    const uint16_t conn_handle = p_lbs_c_evt->conn_handle;
    switch (p_lbs_c_evt->evt_type)
    {
    case BLE_LBS_C_EVT_DISCOVERY_COMPLETE:
    {
        ret_code_t err_code;

        NRF_LOG_PRINTF("[APP]: LED Button service discovered on conn_handle 0x%x\r\n", 
                        conn_handle);
        
        err_code = app_button_enable();
        APP_ERROR_CHECK(err_code);

        // LED Button service discovered. Enable notification of Button.
        err_code = ble_lbs_c_button_notif_enable(p_lbs_c);
        APP_ERROR_CHECK(err_code);
    } break; // BLE_LBS_C_EVT_DISCOVERY_COMPLETE

    case BLE_LBS_C_EVT_BUTTON_NOTIFICATION:
    {
        NRF_LOG_PRINTF("[APP]: Link 0x%x, Button state changed on peer to 0x%x\r\n",//   0x%x
                       conn_handle,
                       p_lbs_c_evt->params.button.button_state);//,
					   //&(p_lbs_c_evt->params.button).button_state+1);
        if (p_lbs_c_evt->params.button.button_state)
        {
            LEDS_ON(LEDBUTTON_LED);
        }
        else
        {
            LEDS_OFF(LEDBUTTON_LED);
        }
    } break; // BLE_LBS_C_EVT_BUTTON_NOTIFICATION

    default:
        // No implementation needed.
        break;
}

}

I managed to send one byte, but when I change it to an array I get a very strange behaviour, and it print the data I sent last time.

[Petter Myhre]

Why have you added this as an answer? Just edit your question and add it there.