蓝牙协议说明

static void advertising_init(void)
{
    uint32_t      err_code;
    ble_advdata_t advdata;  // Struct containing advertising parameters
    // Build advertising data struct to pass into @ref ble_advertising_init.
    memset(&advdata, 0, sizeof(advdata));
    advdata.name_type               = BLE_ADVDATA_FULL_NAME;
    advdata.flags                   = BLE_GAP_ADV_FLAGS_LE_ONLY_GENERAL_DISC_MODE;
    ble_adv_modes_config_t options = {0};
    options.ble_adv_fast_enabled  = BLE_ADV_FAST_ENABLED;
    options.ble_adv_fast_interval = APP_ADV_INTERVAL;
    options.ble_adv_fast_timeout  = APP_ADV_TIMEOUT_IN_SECONDS;
    err_code = ble_advertising_init(&advdata, NULL, &options, on_adv_evt, NULL);
    APP_ERROR_CHECK(err_code);
}

static void advertising_init(void)
{
    uint32_t      err_code;
    ble_advdata_t advdata;  // Struct containing advertising parameters
    ble_advdata_manuf_data_t        manuf_data; // Variable to hold manufacturer specific data
    uint8_t data[]                      = "SomeData!"; // Our data to adverise
    manuf_data.company_identifier       = 0x0059; // Nordics company ID
    manuf_data.data.p_data              = data;     
    manuf_data.data.size                = sizeof(data);
    // Build advertising data struct to pass into @ref ble_advertising_init.
    memset(&advdata, 0, sizeof(advdata));
    advdata.name_type               = BLE_ADVDATA_SHORT_NAME;
    advdata.short_name_len          = 6;
    advdata.flags                   = BLE_GAP_ADV_FLAGS_LE_ONLY_GENERAL_DISC_MODE;
    advdata.p_manuf_specific_data   = &manuf_data;
    ble_adv_modes_config_t options = {0};
    options.ble_adv_fast_enabled  = BLE_ADV_FAST_ENABLED;
    options.ble_adv_fast_interval = APP_ADV_INTERVAL;
    options.ble_adv_fast_timeout  = APP_ADV_TIMEOUT_IN_SECONDS;
    err_code = ble_advertising_init(&advdata, NULL, &options, on_adv_evt, NULL);
    APP_ERROR_CHECK(err_code);
}