蓝牙广播包中自定义厂家数据的设置及获取数据结构与算法Hansen Mi Blog-

硬件: Nordic nrf52840 SoC

软件: Nordic nRF5_SDK_15.2.0_9412b96

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

参考样例

  static void advertising_init(void) {  uint32_t               err_code;  ble_advertising_init_t init;    memset(&init, 0, sizeof(init));    char manufacture_data[] = 0x20;  uint8_array_t temp;  temp.size = 1;  temp.p_data = manufacture_data;    ble_advdata_manuf_data_t  device_category;  device_category.company_identifier= 0x31;  device_category.data = temp;    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); } 

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;

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. */ /**@} */