writing data to USB port with MATLAB

matlab usb

Hi all.

I want to use USB port with MATLAB. I will write any data to USB port and a PIC of series 18f2550 or 18f4550 (I haven't decided yet) will read this data via directly USB.

Does anybody know how to control and write data USB port from MATLAB?

I need help.Thanks in advance.

usb matlab

I am as well facing the same problem, I have been searching online since about 2 monthes now, but apparently, you cant use MATLAB for USB data aquisition without getting some extra plugins [like control boards and stuff]. Also, its noted that u can record USB inputs from the usb via MATLAB, by creating DLL files and calling them through MATLAB's main window [the command for call DLL files is 'loadlibrary']...but as far as I knw you cant use that for realtime logging, your input data is stored somehow in a .dat file which then u gonna have to reuse for MATLAB...

As advice, I think its abt time to start thinking of usuing the usual serial 'RS232' which is totally supported by matlab...although this is not useful for most labtops, there are USB/RS232 cables [that is wht I am starting to do, although I dont knw how this will actually work with my application but I shall try it..]
You can use the Simulink tool to use the serial cable...or u can type "help serial" on the main MATLAB window for further help..
Best of luck;
Abuelezz
P.S.attached is a block diagram of the blocks u may need for ur application

matlab usb port

thx for your reply.

yes youre right I think USB port usage is not supported in MATLAB like serial port. I also think to use serial port instead of USB. I hope USB RS232 converters work well with MATLAB because as I know some applications do not work comfortably with converters.