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From: Frank W. on 19 May 2010 06:28
Hello,
what might also be is that the 'fprintf' function adds a newline/linefeed character automatically. See http://www.mathworks.com/access/helpdesk/help/techdoc/matlab_external/f62852.html#f68507 for details. Perhaps the attached '/n' confuses your system?
Regards
Frank
From: Frank W. on 19 May 2010 06:36
Sorry,
I was unprecise. It's the section 'Writing Text Data' under
http://www.mathworks.com/access/helpdesk/help/techdoc/matlab_external/f62852.html#f68507 where you can find how to find out how many characters have been sent by Matlab.
Frank
From: Ankit Desai on 19 May 2010 10:41
"Frank W." <yohansan(a)web.de> wrote in message <ht0eul$gj6$1(a)fred.mathworks.com>...
> Sorry,
> I was unprecise. It's the section 'Writing Text Data' under
> http://www.mathworks.com/access/helpdesk/help/techdoc/matlab_external/f62852.html#f68507 where you can find how to find out how many characters have been sent by Matlab.
> Frank

You might want to match the settings of your Serial object to that of hyper terminal.

Particularly the baudrate, terminator, parity, flow control etc.

I see no reason why hyper terminal would work but MATLAB Serial object would not.

-Ankit
From: Walter Roberson on 19 May 2010 10:45
Nandish wrote:

> S = Serial('COM1');
> fopen(S);
> fprintf(S,'P')
> fclose(S);
>
> fopen(S);
> fprintf(S,'A')

I would suggest you replace the fclose/fopen pair by pause(0.01).

Also, the other poster was correct in pointing out to you that if you
use that form of fprintf that a \n will be added to each character
written. To avoid that, provide a format yourself:

fprintf(S,'%c','P')
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