How SEND and READ a hexadecimal code in matlab and instrument via port usb

Hello

I really need need your help on this please. The goal is to send a command code in hexadecimal 8-bit and receive the answer as 8-bit Matlab. For now, I can send information in the following map out verification oscilloscope and I see the same .By against my problem is transmitting the data to matlab. I tried everything with fread or fscanf but it still shows me error; such as:

Warning: The specified Amount of data returned 'Was not Within The Timeout period.

So I do not know if SOMEBODY can help me on this problem please because I have already made several attempts, but this time to no avail.

sorry for my english.

s = serial('COM5');

set(s,'BaudRate',9600,'DataBits', 8, 'Parity', 'none','StopBits', 1, 'FlowControl', 'none','Terminator','CR');
set(s,'Timeout',1);

% Connect to instrument object, obj1.
fopen(s);

txdata = ['10';'02';'00';'00';'10';'03']; %hexadecimal code

%Convert to decimal format
txdata_dec = hex2dec(txdata);

pause(2)

%read data format UINT8
fwrite (obj2, txdata_dec, 'uint8');

Until then everything works, but at the reception, there is error.

I did:

out=fscanf(s)

ou

out = fread(s,8,'uint8');

but not reponse.

window command

get(s)

ByteOrder = littleEndian
    BytesAvailable = 0
    BytesAvailableFcn = 
    BytesAvailableFcnCount = 48
    BytesAvailableFcnMode = terminator
    BytesToOutput = 0
    ErrorFcn = 
    InputBufferSize = 512
    Name = Serial-COM5
    ObjectVisibility = on
    OutputBufferSize = 512
    OutputEmptyFcn = 
    RecordDetail = compact
    RecordMode = overwrite
    RecordName = record.txt
    RecordStatus = off
    Status = open
    Tag = 
    Timeout = 1
    TimerFcn = 
    TimerPeriod = 1
    TransferStatus = idle
    Type = serial
    UserData = []
    ValuesReceived = 0
    ValuesSent = 6

      SERIAL specific properties:
      BaudRate = 9600
      BreakInterruptFcn = 
      DataBits = 8
      DataTerminalReady = on
      FlowControl = none
      Parity = none
      PinStatus = [1x1 struct]
      PinStatusFcn = 
      Port = COM5
      ReadAsyncMode = continuous
      RequestToSend = off
      StopBits = 1
      Terminator = CR

thanks

[Geoff Hayes]

bekoto - you state i see the same. Does that mean that you have verified that the oscilloscope has received the data from MATLAB, and that it has sent a response?

[FREDERICK NII OFEI BRUCE]

I have the same problem as Bekoto. Anyone who can help me? Thanks.

[Walter Roberson]

      Terminator = CR

You are using a binary protocol. It is likely that either there is no terminator or that the terminator is not carriage return. You might need to switch to non-terminator reading, such as BytesAvailableFcn that does the fread()