在udp通信matlab中控制超时值

Question

如何更改 UDP 通信中的 "timeout" 值？我收到此警告：

Warning: Unsuccessful read:  The specified amount of data was not returned within the Timeout period.

我想增加超时值，这样我就不会遇到这个警告...

Answer 1

要设置超时，您可以使用：

u.Timeout=99;

在这种情况下，超时属性没有记录，至少我找不到任何文档。在处理未知或未完全记录的对象时，我通常会尝试 get methods 和 properties 来检查它们：

>> methods(x)

Methods for class udp:

Contents       eq             fscanf         instrhelp      ne             size           
binblockread   fclose         fwrite         instrhwinfo    obj2mfile      stopasync      
binblockwrite  fgetl          get            instrnotify    open           subsasgn       
class          fgets          horzcat        instrument     openvar        subsref        
close          fieldnames     icinterface    isa            propinfo       udp            
ctranspose     flushinput     igetfield      isequal        query          vertcat        
delete         flushoutput    inspect        isetfield      readasync                     
disp           fopen          instrcallback  isvalid        record                        
display        fprintf        instrfind      length         scanstr                       
end            fread          instrfindall   methods        set                           

>> properties(x)

No properties for class udp or no class udp.

>> get(x)
    ByteOrder = bigEndian
    BytesAvailable = 0
    BytesAvailableFcn = 
    BytesAvailableFcnCount = 48
    BytesAvailableFcnMode = terminator
    BytesToOutput = 0
    ErrorFcn = 
    InputBufferSize = 512
    Name = UDP-127.0.0.1
    ObjectVisibility = on
    OutputBufferSize = 512
    OutputEmptyFcn = 
    RecordDetail = compact
    RecordMode = overwrite
    RecordName = record.txt
    RecordStatus = off
    Status = open
    Tag = 
    Timeout = 3
    TimerFcn = 
    TimerPeriod = 1
    TransferStatus = idle
    Type = udp
    UserData = []
    ValuesReceived = 0
    ValuesSent = 0

    UDP specific properties:
    DatagramAddress = 
    DatagramPort = []
    DatagramReceivedFcn = 
    DatagramTerminateMode = on
    InputDatagramPacketSize = 512
    LocalHost = 
    LocalPort = 52148
    LocalPortMode = auto
    OutputDatagramPacketSize = 512
    ReadAsyncMode = continuous
    RemoteHost = 127.0.0.1
    RemotePort = 9090
    Terminator = LF

请注意，并不总是支持 get。如果您收到 Error using get Conversion to double from A is not possible.，其他两种方法会显示所有可访问的内容。

在udp通信matlab中控制超时值

control timeout valus in udp communication matlab

matlab

udp

timeout