Hey guys,

This is my first article here. I hope some of u nerds can help me out. I try to read in data from RS 232 using serial port and matlab. I just dont know how to keep reading the data from RS-232 given that the program runs forever.

 

just type "help serial" in matlab command window. there is useful information in it. if there is any problem, you can contact with me [email protected]

 

dude im having trouble using matlab to interface to an ABB Commander 300 and sounds like ure program would really get me started. any chance of you sending it on to me?

[email protected]

 

s = serial('com1');
s.InputBufferSize = 10;
fopen(s);
fid = fopen('c:\out.txt','w')

a = fread(s,8);
fwrite(fid,char(a));

fclose(s);
fclose(fid);

 

when I pick the RS232 data, I write the program listed below.

s=serial('COM1');
set(s,'InputBufferSize',20);
fopen(s);
acc=fscanf(s,'%d');
fclose(s);

However, I could not use the acc matrix immediately. for instance,I put the logic sentence in the for loop.

acc(i)=fscanf(s,'%d');

however, the program will be terminated,

could somebody kindly help me to put the rs-232 data into the matrix and let me go the following calculations?

Thanks

Ray