一 前言

  這裡的程式碼是在原廠基礎上修改了不少。雖然程式碼複雜了不少，但是邏輯也清晰了不少。

二  廣播協議

  想要熟悉並修改ble的廣播協議和內容，請查閱結構體：

        {0,ATT_PERMISSIONS_READ,2,sizeof(my_batCharVal),(u8*)(&my_characterUUID), (u8*)(my_batCharVal), 0},                //prop

   該廣播資訊的填寫如下所示：

//// Battery attribute values
static const u8 my_batCharVal[5] = {
    CHAR_PROP_READ | CHAR_PROP_NOTIFY,
    U16_LO(BATT_LEVEL_INPUT_DP_H), U16_HI(BATT_LEVEL_INPUT_DP_H),
    U16_LO(CHARACTERISTIC_UUID_BATTERY_LEVEL), U16_HI(CHARACTERISTIC_UUID_BATTERY_LEVEL)
};

    case
 
 APP_BLE_EVENT_CONNECTED:
        b_ble_connected = ON;
        LOG_INFO("Connected!!! ble_state:%d ",b_ble_connected);
        LOG_INFO("e: %d p:%d n: %d", param->e, param->p, param->n);

  斷開的介面如下所示：

    case APP_BLE_EVENT_DISCONNECTED:
        b_ble_connected = OFF;
        b_rx_notify_enable 
 
= OFF;

        LOG_INFO("DisConnected Reason: 0x%02x ble_state:%d ", param->p,b_ble_connected);
        att_mtu_size = DEFAULT_ATT_MTU_SIZE;

static int parse_xp_message(XpMessage* message, uint8_t* data, uint16_t len)
{
    uint8_t* p = NULL;
    p = data;
    
    set_xp_header(message, data, &p);
    LOG_DEBUG("%s Info: ble received data:", __func__);

    app_ble_send_data_by_notification(buff, length);

五 軟硬體連結：

1 泰凌微TLSR8258 BLE5.0物聯網IOT評估開發板產品級原始碼開放-淘寶網 (taobao.com)