QPPS发送数据时报错是什么原因

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1. /// Profiles specific error codes
   
2. enum prf_err_code
   
3. {
   
4.     /// No error
   
5.     PRF_ERR_OK                             = 0x00,
   
6.     /// Application Error
   
7.     PRF_APP_ERROR                          = 0x80,
   
8.     /// Invalid parameter in request
   
9.     PRF_ERR_INVALID_PARAM,
   
10.     /// Inexistent handle for sending a read/write characteristic request
    
11.     PRF_ERR_INEXISTENT_HDL,
    
12.     /// Discovery stopped due to missing attribute according to specification
    
13.     PRF_ERR_STOP_DISC_CHAR_MISSING,
    
14.     /// Too many SVC instances found -> protocol violation
    
15.     PRF_ERR_MULTIPLE_SVC,
    
16.     /// Discovery stopped due to found attribute with incorrect properties
    
17.     PRF_ERR_STOP_DISC_WRONG_CHAR_PROP,
    
18.     /// Too many Char. instances found-> protocol violation
    
19.     PRF_ERR_MULTIPLE_CHAR,
    
20.     /// Attribute write not allowed
    
21.     PRF_ERR_NOT_WRITABLE,
    
22.     /// Attribute read not allowed
    
23.     PRF_ERR_NOT_READABLE,
    
24.     /// Request not allowed
    
25.     PRF_ERR_REQ_DISALLOWED,
    
26.     /// Notification Not Enabled
    
27.     PRF_ERR_NTF_DISABLED,
    
28.     /// Indication Not Enabled
    
29.     PRF_ERR_IND_DISABLED,
    
30.     /// Feature not supported by profile
    
31.     PRF_ERR_FEATURE_NOT_SUPPORTED,
    
32.     /// Read value has an unexpected length
    
33.     PRF_ERR_UNEXPECTED_LEN,
    
34.     /// Disconnection occurs
    
35.     PRF_ERR_DISCONNECTED,
    
36.     /// Procedure Timeout
    
37.     PRF_ERR_PROC_TIMEOUT,
    
38.     /// Client Char Config Desc Improperly Configured
    
39.     PRF_CCCD_IMPR_CONFIGURED               = 0xFD,
    
40.     /// Procedure Already in Progress
    
41.     PRF_PROC_IN_PROGRESS,
    
42.     /// Out of Range
    
43.     PRF_OUT_OF_RANGE
    
44. };

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错误代码提示特征不可读，说明你的特征声明部分有问题。

安安

有修改过代码吗？可以追踪串口信息看看，按理说是不会出错的，你用git diff看看修改了些什么