CC254x的微信AirSync调试笔记

一、前言

本尊自诩为IOT小能手，一直没涉足蓝牙实在说不过去。刚好上个月底的时候计划做个BLE设备，这阵子利用业余时间自学了BLE协议栈，了解了GATT，磕磕绊绊完成CC254x的微信AirSync。就在今晚，听着Coldplay的“Be my mirror, my sword and shield”雄心万丈，大千世界和AirSync都被我征服，终于完成了最后一步的测试。

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二、常见问题及措施

我把自己遇到的几个问题及解决方案都记录在这边，应该会让一些朋友少走一些弯路。

1. 广播包中没有 manufacture specific data 字段，或不以MAC地址结尾。

措施：广播包中必须带上0xFF的厂商自定义字段，09+ FF + 厂商ID(2 Bytes) + MAC(6 Bytes)。

2. Mac address 校验失败！

这是我之前调试的错误提示：

***** onTestIsValidAuthReqPack *****
result = false, is an invalid auth request pack: AuthRequestPack: FE 01 00 32 27 11 00 01 0A 00 18 84 80 04 20 01 28 02 3A 06 57 65 43 68 61 74 62 16 57 65 43 68 61 74 42 6C 75 65 74 6F 6F 74 68 44 65 76 69 63 65 00 
has BaseRequest
no Md5DeviceTypeAndDeviceId field!
has MacAddress field, Mac Address = 57 65 43 68 61 74 
MacAddress BitLength = 48bit
Mac Address from broadcast record = 90:59:AF:0E:62:88
Mac address 校验失败！
has ProtoVersion field, ProtoVersion = 65540
has AuthProto field, AuthProto = 1
has AuthMethod field, AuthMethod = EAM_macNoEncrypt
no AesSign field!
has DeviceName field, DeviceName = WeChatBluetoothDevice

措施：在AUTH REQ中也有Mac字段，需要保证MAC地址和广播包中的一样。

3. Read Characteristic is not read able!

4. Can not Start Indicate permision:Can not get configure descriptor

措施：这两个处理，要保证Read Characteristic有可读权限，然后Read Char的值必须为MAC地址。

5. async write data error

措施：这个问题很多，但是解决思路都固定，就是在https://developer.android.com/reference/android/bluetooth/BluetoothGatt.html#GATT_FAILURE
找错误码。

我的错误码是03，说是手机没有写权限。

public static final int GATT_WRITE_NOT_PERMITTED 
Added in API level 18 GATT write operation is not permitted 

Constant Value: 3 (0x00000003) 

后来一查，果然我的Write CHAR没有write权限。

三、AirSync的完整日志

这边把完整的LOG日志提供出来,希望对其他调试AirSync的朋友有所帮助。

2015年8月18日星期二 中国标准时间下午9:42:07
*****************BLE： TwoWinter******************

***** onTestBroadcastRecord *****
result = true, Has 0xfee7 or standard service in broadcast record

广播包：02 01 06 03 02 E7 FE 09 FF 0D 00 90 59 AF 0E 62 88 0A 09 54 77 6F 57 69 6E 74 65 72 05 12 50 00 20 03 02 0A 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 

***** onTestManufatureData *****
resut= true, 广播包中 manufacture specific data 字段中MAC地址校验成功.

***** onDiscoverService *****
result = true, DiscoverService success
Discovered Services
ServiceUUID: 00001800-0000-1000-8000-00805f9b34fb
ServiceUUID: 00001801-0000-1000-8000-00805f9b34fb
ServiceUUID: 0000180a-0000-1000-8000-00805f9b34fb
ServiceUUID: 0000fee7-0000-1000-8000-00805f9b34fb


***** onTestHasWeChatService *****
result = true, has WeChatService or standard service

***** onTestHasIndicateCharacteristic *****
result = true, has WeChat Indicate Characteristic

***** onTestHasWriteCharacteristic *****
result = true, has Wechat Write Characteristic

***** onTestHasReadCharacteristic *****
result = true, Has WeChat read characteristic

***** onTestWriteCharacteristicPermisson *****
result = true, has Write permission

***** onTestIndicateCharacteristicPermisson *****
result = true, has Indication permission

***** onTestReadCharacteristicPermisson *****
result = true, Read Characteristic is read able

***** onTestStartIndicating *****
result = true, can Start Indicate

***** onConnected *****
result = true, connected

------onDataReceived------
data length = 20
data dump = FE 01 00 24 27 11 00 01 0A 00 18 84 80 04 20 01 28 02 3A 06 
data receive seq = 0

------onDataReceived------
data length = 16
data dump = 90 59 AF 0E 62 88 62 08 6D 79 64 65 76 69 63 65 
data receive seq = 1

***** onTestRecvAuthReqtWhenStartedIndicating *****
result = true, received auth request pack

***** onTestIsValidAuthReqPack *****
result = true, is a valid auth request pack
AuthRequestPack: FE 01 00 24 27 11 00 01 0A 00 18 84 80 04 20 01 28 02 3A 06 90 59 AF 0E 62 88 62 08 6D 79 64 65 76 69 63 65 
has BaseRequest
no Md5DeviceTypeAndDeviceId field!
has MacAddress field, Mac Address = 90 59 AF 0E 62 88 
MacAddress BitLength = 48bit
Mac Address from broadcast record = 90:59:AF:0E:62:88
Mac address checkout success
has ProtoVersion field, ProtoVersion = 65540
has AuthProto field, AuthProto = 1
has AuthMethod field, AuthMethod = EAM_macNoEncrypt
no AesSign field!
has DeviceName field, DeviceName = mydevice


**** send auth response ****
data len = 14
data dump = FE 01 00 0E 4E 21 00 01 0A 02 08 00 12 00 

------onDataReceived------
data length = 16
data dump = FE 01 00 10 27 13 00 02 0A 00 1A 04 11 22 33 44 
data receive seq = 2

***** onTestRecvInitReqPack *****
result = true, received init request pack

***** onTestIsValidInitReqPack *****
result = true, valid init request pack: has BaseRequest
has Challenge field, Challenge = 11 22 33 44 


**** send init request response ****
data len = 25
data dump = FE 01 00 19 4E 23 00 02 0A 02 08 00 10 B4 24 18 F8 AC 01 20 D1 BB CA BF 07 

------onDataReceived------
data length = 20
data dump = FE 01 00 18 27 12 00 03 0A 00 12 0C FE CF 00 01 00 12 00 01 
data receive seq = 3

------onDataReceived------
data length = 4
data dump = 00 03 00 00 
data receive seq = 4

*** receive SendDataRequest ****
date type = manufactureSvr data
data len = 16
data dump = 0A 00 12 0C FE CF 00 01 00 12 00 01 00 03 00 00 

**** send SendData Response(echo request) ****
data len = 30
data dump = FE 01 00 1E 4E 22 00 03 0A 02 08 00 12 10 0A 00 12 0C FE CF 00 01 00 12 00 01 00 03 00 00 

***** onTestIsValidSendDataRequest *****
result = true, is a valid SendDataRequest pack: has BaseRequest field
has Data field, data = FE CF 00 01 00 12 00 01 00 03 00 00 
no Type field, use default manufactureSvr data type


**** send ManufactureSvr Push ****
data len = 22
data dump = FE 01 00 16 75 31 00 00 0A 00 12 08 31 32 33 34 35 36 37 38 18 00 

**** send Html Push ****
data len = 23
data dump = FE 01 00 17 75 31 00 00 0A 00 12 08 31 32 33 34 35 36 37 38 18 91 4E 

**** send wxWristBand Push ****
data len = 14
data dump = FE 01 00 0E 75 31 00 00 0A 00 12 00 18 01 

**** send EnterDeviceChatView Push ****
data len = 14
data dump = FE 01 00 0E 75 32 00 00 0A 00 10 01 18 01 

**** send Exit ChatView Push ****
data len = 14
data dump = FE 01 00 0E 75 32 00 00 0A 00 10 02 18 01 

**** send Enter HtmlChatView Push ****
data len = 14
data dump = FE 01 00 0E 75 32 00 00 0A 00 10 01 18 02 

**** send Exit HtmlChatView Push ****
data len = 14
data dump = FE 01 00 0E 75 32 00 00 0A 00 10 02 18 02 

**** send enterBackground Push ****
data len = 12
data dump = FE 01 00 0C 75 33 00 00 0A 00 10 01 

**** send enterForground Push ****
data len = 12
data dump = FE 01 00 0C 75 33 00 00 0A 00 10 02 

**** send enterSleep Push ****
data len = 12
data dump = FE 01 00 0C 75 33 00 00 0A 00 10 03 

*****Disconnected Device*****