This enhancement has been incorporated in Data Acquisition Toolbox 2.15 (R2009b). For previous product releases, read below for any possible workarounds:
National Instruments USB-6525 is not supported by Data Acquisition Toolbox 2.12 (R2008a).
To work around this issue, perform these steps to add support for this device in R2008a:
1. Quit MATLAB.
2. Find the following file:
$MATLABROOT\toolbox\daq\daq\private\mwnidaqmx.ini
where $MATLABROOT is the MATLAB root installation directory obtained by issuing:
matlabroot
at the MATLAB Command Prompt.
3. Make a copy of this file and rename it to mwnidaqmx.ini.old.
4. Open the file mwnidaqmx.ini in a text editor, and add the following lines at the end of the file:
[USB-6525]
hasAnalogInput = false
hasAnalogOutput = false
hasDigitalIO = true
digitalPortSize = 8,8
digitalPortCap = 2,1
5. Save the file mwnidaqmx.ini and restart MATLAB.
