problem with serial communication

Jim
2013 5 24
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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

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Walter Roberson
Walter Roberson 2013-5-24
The code uses unsigned 16 bit binary values as the representation; is that what you were asking about?
Jim
Jim 2013-5-24
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 2013-5-24
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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Jim
Jim
2013-5-24

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