non-connectable advertising while connected on SDK15.3

Question

Hello, 
 I'm using SDK15.3 and trying to do a non-connectable advertising while connected. 
 For that I set my adv package as non-connectable, however, when I run the function sd_ble_gap_adv_start I always receive the error 0x3004. 
 case BLE_GAP_EVT_CONNECTED:
 NRF_LOG_INFO("Connected");
 bsp_board_led_on(CONNECTED_LED);
 bsp_board_led_off(ADVERTISING_LED);
 m_conn_handle = p_ble_evt->evt.gap_evt.conn_handle;
 err_code = nrf_ble_qwr_conn_handle_assign(&m_qwr, m_conn_handle);
 APP_ERROR_CHECK(err_code);
 advertising_update();
 advertising_start();
 break; 
 Based on my research on the forum I know it's possible to do non-connectable advertising while connected, at least in older versions of the SDK. I had a hard time to implement the advertising update in this SDK but now it's working fine, the error occurs simply by calling the function advertising_start while I'm connected. 
 Does anyone know how to solve this problem? 
 Thank you very much.

kreis · Accepted Answer

Hi, 
 I tested here and it worked! In that case I changed the advertising type to a scannable one and that passed. 
 I needed to update the other part of the code as well so for reference I'm posting the updated code here. 
 static void advertising_init(bool connectable)
{
 ret_code_t err_code;
 ble_advdata_t advdata;
 ble_advdata_t srdata;

 ble_uuid_t adv_uuids[] = {{LBS_UUID_SERVICE, m_lbs.uuid_type}};

 // Build and set advertising data.
 memset(&advdata, 0, sizeof(advdata));

 advdata.name_type = BLE_ADVDATA_FULL_NAME;
 advdata.include_appearance = true;
 advdata.flags = BLE_GAP_ADV_FLAGS_LE_ONLY_GENERAL_DISC_MODE;


 memset(&srdata, 0, sizeof(srdata));
 srdata.uuids_complete.uuid_cnt = sizeof(adv_uuids) / sizeof(adv_uuids[0]);
 srdata.uuids_complete.p_uuids = adv_uuids;

 err_code = ble_advdata_encode(&advdata, m_adv_data.adv_data.p_data, &m_adv_data.adv_data.len);
 APP_ERROR_CHECK(err_code);

 err_code = ble_advdata_encode(&srdata, m_adv_data.scan_rsp_data.p_data, &m_adv_data.scan_rsp_data.len);
 APP_ERROR_CHECK(err_code);

 ble_gap_adv_params_t adv_params;

 // Set advertising parameters.
 memset(&adv_params, 0, sizeof(adv_params));

 if(connectable)
 {
 adv_params.properties.type = BLE_GAP_ADV_TYPE_CONNECTABLE_SCANNABLE_UNDIRECTED;
 adv_params.interval = APP_ADV_INTERVAL;
 }
 else
 {
 adv_params.properties.type = BLE_GAP_ADV_TYPE_NONCONNECTABLE_SCANNABLE_UNDIRECTED;
 adv_params.interval = 320;
 }
 adv_params.primary_phy = BLE_GAP_PHY_1MBPS;
 adv_params.duration = APP_ADV_DURATION;
 adv_params.p_peer_addr = NULL;
 adv_params.filter_policy = BLE_GAP_ADV_FP_ANY;
 
 err_code = sd_ble_gap_adv_set_configure(&m_adv_handle, &m_adv_data, &adv_params);
 NRF_LOG_INFO("error code: %x", err_code);
 APP_ERROR_CHECK(err_code);
}

//---------------------------------

case BLE_GAP_EVT_CONNECTED:
 NRF_LOG_INFO("Connected");
 bsp_board_led_on(CONNECTED_LED);
 bsp_board_led_off(ADVERTISING_LED);
 m_conn_handle = p_ble_evt->evt.gap_evt.conn_handle;
 err_code = nrf_ble_qwr_conn_handle_assign(&m_qwr, m_conn_handle);
 APP_ERROR_CHECK(err_code);
 err_code = app_button_enable();
 APP_ERROR_CHECK(err_code);

 advertising_init(false);
 advertising_start();
 break;

case BLE_GAP_EVT_DISCONNECTED:
 NRF_LOG_INFO("Disconnected");
 bsp_board_led_off(CONNECTED_LED);
 m_conn_handle = BLE_CONN_HANDLE_INVALID;
 err_code = app_button_disable();
 APP_ERROR_CHECK(err_code);

 advertising_stop();
 advertising_init(true);
 advertising_start();
 break; 
 
 Thank you all for your help!

non-connectable advertising while connected on SDK15.3

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