蓝牙广播包中自定义厂家数据的设置及获取

硬件: Nordic nrf52840 SoC

软件: Nordic nRF5_SDK_15.2.0_9412b96

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1. 蓝牙 perihperal 设备广播自定义数据设定

蓝牙广播相关数据结构定义于 ble_advertising.h 

以下为相关数据结构关联示意图

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参考样例

static void advertising_init(void)
{
	uint32_t               err_code;
	ble_advertising_init_t init;
	
	memset(&init, 0, sizeof(init));
	
    // define manufacture data of sensor category
		
    char 			data_of_sensor_category[] = 0x20;
    uint8_array_t   array_category;
    array_category.size   = 1;
    array_category.p_data = data_of_sensor_category;

    ble_advdata_manuf_data_t  device_category;
    device_category.company_identifier	= 0x31;
    device_category.data 				= array_category;
    init.advdata.p_manuf_specific_data 	= &device_category;

	init.advdata.name_type          = BLE_ADVDATA_FULL_NAME;
	init.advdata.include_appearance = false;
	init.advdata.flags              = BLE_GAP_ADV_FLAGS_LE_ONLY_LIMITED_DISC_MODE;
	
	init.srdata.uuids_complete.uuid_cnt = sizeof(m_adv_uuids) / sizeof(m_adv_uuids[0]);
	init.srdata.uuids_complete.p_uuids  = m_adv_uuids;
	
	init.config.ble_adv_fast_enabled  = true;
	init.config.ble_adv_fast_interval = APP_ADV_INTERVAL;
	init.config.ble_adv_fast_timeout  = APP_ADV_DURATION;
	init.evt_handler = on_adv_evt;
	
	err_code = ble_advertising_init(&m_advertising, &init);
	APP_ERROR_CHECK(err_code);
	
	ble_advertising_conn_cfg_tag_set(&m_advertising, APP_BLE_CONN_CFG_TAG);
}

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2. 蓝牙 Central 设备获取蓝牙广播中的自定义数据

说明: 蓝牙广播原始数据使用 Nordic nRF Connect Android 版本软件获取;

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3. adv_report_parse() 数据分析函数

static uint32_t adv_report_parse(uint8_t type, uint8_array_t * p_advdata, uint8_array_t * p_typedata)
{
    uint32_t  index = 0;
    uint8_t * p_data;

    p_data = p_advdata->p_data;

    while (index < p_advdata->size)
    {
        uint8_t field_length = p_data[index];
        uint8_t field_type   = p_data[index + 1];

        if (field_type == type)
        {
            p_typedata->p_data = &p_data[index + 2];
            p_typedata->size   = field_length - 1;
            return NRF_SUCCESS;
        }
        index += field_length + 1;
    }
    return NRF_ERROR_NOT_FOUND;
}

/**@defgroup BLE_GAP_AD_TYPE_DEFINITIONS GAP Advertising and Scan Response Data format
 * @note Found at https://www.bluetooth.org/Technical/AssignedNumbers/generic_access_profile.htm
 * @{ */
#define BLE_GAP_AD_TYPE_FLAGS                               0x01 /**< Flags for discoverability. */
#define BLE_GAP_AD_TYPE_16BIT_SERVICE_UUID_MORE_AVAILABLE   0x02 /**< Partial list of 16 bit service UUIDs. */
#define BLE_GAP_AD_TYPE_16BIT_SERVICE_UUID_COMPLETE         0x03 /**< Complete list of 16 bit service UUIDs. */
#define BLE_GAP_AD_TYPE_32BIT_SERVICE_UUID_MORE_AVAILABLE   0x04 /**< Partial list of 32 bit service UUIDs. */
#define BLE_GAP_AD_TYPE_32BIT_SERVICE_UUID_COMPLETE         0x05 /**< Complete list of 32 bit service UUIDs. */
#define BLE_GAP_AD_TYPE_128BIT_SERVICE_UUID_MORE_AVAILABLE  0x06 /**< Partial list of 128 bit service UUIDs. */
#define BLE_GAP_AD_TYPE_128BIT_SERVICE_UUID_COMPLETE        0x07 /**< Complete list of 128 bit service UUIDs. */
#define BLE_GAP_AD_TYPE_SHORT_LOCAL_NAME                    0x08 /**< Short local device name. */
#define BLE_GAP_AD_TYPE_COMPLETE_LOCAL_NAME                 0x09 /**< Complete local device name. */
#define BLE_GAP_AD_TYPE_TX_POWER_LEVEL                      0x0A /**< Transmit power level. */
#define BLE_GAP_AD_TYPE_CLASS_OF_DEVICE                     0x0D /**< Class of device. */
#define BLE_GAP_AD_TYPE_SIMPLE_PAIRING_HASH_C               0x0E /**< Simple Pairing Hash C. */
#define BLE_GAP_AD_TYPE_SIMPLE_PAIRING_RANDOMIZER_R         0x0F /**< Simple Pairing Randomizer R. */
#define BLE_GAP_AD_TYPE_SECURITY_MANAGER_TK_VALUE           0x10 /**< Security Manager TK Value. */
#define BLE_GAP_AD_TYPE_SECURITY_MANAGER_OOB_FLAGS          0x11 /**< Security Manager Out Of Band Flags. */
#define BLE_GAP_AD_TYPE_SLAVE_CONNECTION_INTERVAL_RANGE     0x12 /**< Slave Connection Interval Range. */
#define BLE_GAP_AD_TYPE_SOLICITED_SERVICE_UUIDS_16BIT       0x14 /**< List of 16-bit Service Solicitation UUIDs. */
#define BLE_GAP_AD_TYPE_SOLICITED_SERVICE_UUIDS_128BIT      0x15 /**< List of 128-bit Service Solicitation UUIDs. */
#define BLE_GAP_AD_TYPE_SERVICE_DATA                        0x16 /**< Service Data - 16-bit UUID. */
#define BLE_GAP_AD_TYPE_PUBLIC_TARGET_ADDRESS               0x17 /**< Public Target Address. */
#define BLE_GAP_AD_TYPE_RANDOM_TARGET_ADDRESS               0x18 /**< Random Target Address. */
#define BLE_GAP_AD_TYPE_APPEARANCE                          0x19 /**< Appearance. */
#define BLE_GAP_AD_TYPE_ADVERTISING_INTERVAL                0x1A /**< Advertising Interval. */
#define BLE_GAP_AD_TYPE_LE_BLUETOOTH_DEVICE_ADDRESS         0x1B /**< LE Bluetooth Device Address. */
#define BLE_GAP_AD_TYPE_LE_ROLE                             0x1C /**< LE Role. */
#define BLE_GAP_AD_TYPE_SIMPLE_PAIRING_HASH_C256            0x1D /**< Simple Pairing Hash C-256. */
#define BLE_GAP_AD_TYPE_SIMPLE_PAIRING_RANDOMIZER_R256      0x1E /**< Simple Pairing Randomizer R-256. */
#define BLE_GAP_AD_TYPE_SERVICE_DATA_32BIT_UUID             0x20 /**< Service Data - 32-bit UUID. */
#define BLE_GAP_AD_TYPE_SERVICE_DATA_128BIT_UUID            0x21 /**< Service Data - 128-bit UUID. */
#define BLE_GAP_AD_TYPE_LESC_CONFIRMATION_VALUE             0x22 /**< LE Secure Connections Confirmation Value */
#define BLE_GAP_AD_TYPE_LESC_RANDOM_VALUE                   0x23 /**< LE Secure Connections Random Value */
#define BLE_GAP_AD_TYPE_URI                                 0x24 /**< URI */
#define BLE_GAP_AD_TYPE_3D_INFORMATION_DATA                 0x3D /**< 3D Information Data. */
#define BLE_GAP_AD_TYPE_MANUFACTURER_SPECIFIC_DATA          0xFF /**< Manufacturer Specific Data. */
/**@} */