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From: Kev on 9 Apr 2010 01:47
I am trying to do a serial interface on a medical pump via Matlab using examples of serial communication that I have found on the internet, but what seems like a really simple task just isn't working for me. Here are the codes that I've been trying with:

!mode com1:9600,n,8,1
s = serial('COM1');

fopen(s);
fprintf(s,'*IDN?');
get(s,{'InputBufferSize','BytesAvailable'});


This should return me with some device information but on the command window, it only shows:


Serial Port Object : Serial-PORT

Communication Settings
Port: PORT
BaudRate: 9600
Terminator: 'LF'

Communication State
Status: closed
RecordStatus: off

Read/Write State
TransferStatus: idle
BytesAvailable: 0
ValuesReceived: 0
ValuesSent: 0


so here it is telling me that the communication is closed, yet in the code that I used, this status should be open shouldn't it?

If anyone can point me in the right direction it'll be much appreciated.

Thanks in advance
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