problem with serial communication

Hi,
I am using the following command for serial communication
nexys = serial('COM1', 'BaudRate', 9600, 'Parity', 'odd', 'Terminator', '', 'Timeout', 1);
s = 's';
fwrite(nexys,s,'uchar');
scan_s1 = fread(nexys,1,'uint16');
t = 't';
fwrite(nexys,t,'uchar');
scan_s2 = fread(nexys,1,'uint16');
The data that is storing in scan_s1, scan_s2 is like:2048, 55040
I do not understand which format is this data
Actually I am sending 2 bytes of data from nexys2 board tp matlab
Can anybody help me in understanding this
Thanks Jim

3 Kommentare

Walter Roberson
Walter Roberson am 24 Mai 2013
The code uses unsigned 16 bit binary values as the representation; is that what you were asking about?
Jim
Jim am 24 Mai 2013
Hi walter, Thanks for your reply
Yes, it represent 16 bit binary value
But I do not understand why it is showing the values like 2048,3042
It is in decimal like
Regards Jim
Walter Roberson
Walter Roberson am 24 Mai 2013
2048 and 3042 and 55040 are quite valid 16 bit unsigned values.
If you want to see the bits composing the numbers, then use dec2bin(scan_s1, 16)

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am 24 Mai 2013

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