不能被連接，不能被掃描的，不帶輔助廣播包的ADV_EXT_IND的廣播類型

在ble5.0中，加入了廣播包擴展的功能，廣播跟原來的廣播有比較大的改變，後面慢慢豐富。本文章只是探討，不能被連接的，不能被掃描的，不帶輔助廣播包的ADV_EXT_IND的廣播類型。

ADV_EXT_IND

  這個廣播包類型，類似於是一個橋樑的作用，可以一方面，在傳統的37 38 39上進行廣播，一個輔助，在AUX_EXT_IND的廣播類型。在此，不探討，AUX_EXT_IND，如有興趣，可以加我QQ，1570698943.

ADV_EXT_IND,有多種Event Type，

 

在此，探討，第一種，Non-Connectable and Non-Scannable Undirected without auxiliary packet 。這種情況下，廣播可以在1Mphy上進行廣播和CODED PHY上進行廣播。下面分別，更改源碼和用手機驗證結果。芯片型號是nRF52840 ，手機是小米手機。在SDK16上，進行驗證。

代碼如下

CODED PHY 

static void advertising_init(void)
{
    
    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));

    adv_params.primary_phy     = BLE_GAP_PHY_CODED;
    adv_params.duration        = 0;
    adv_params.properties.type = BLE_GAP_ADV_TYPE_EXTENDED_NONCONNECTABLE_NONSCANNABLE_UNDIRECTED;
    adv_params.p_peer_addr     = NULL;
    adv_params.filter_policy   = BLE_GAP_ADV_FP_ANY;
    adv_params.interval        = APP_ADV_INTERVAL;

    err_code = sd_ble_gap_adv_set_configure(&m_adv_handle, NULL, &adv_params);
    APP_ERROR_CHECK(err_code);
        
}

手機截圖：

 

1M PHY

static void advertising_init(void)
{
    
    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));

    adv_params.primary_phy     = BLE_GAP_PHY_1MBPS;
    adv_params.duration        = 0;
    adv_params.properties.type = BLE_GAP_ADV_TYPE_EXTENDED_NONCONNECTABLE_NONSCANNABLE_UNDIRECTED;
    adv_params.p_peer_addr     = NULL;
    adv_params.filter_policy   = BLE_GAP_ADV_FP_ANY;
    adv_params.interval        = APP_ADV_INTERVAL;

    err_code = sd_ble_gap_adv_set_configure(&m_adv_handle, NULL, &adv_params);
    APP_ERROR_CHECK(err_code);
        
}