MATLAB: Are USB-6221 and USB-6229 from National Instruments supported by Data Acquisition Toolbox

62216229Data Acquisition Toolboxniusb

I would like to use National Instruments boards USB-6221 and USB-6229 with Data Acquisition Toolbox.

Best Answer

This enhancement has been incorporated in Release 2007b (R2007b). For previous product releases, read below for any possible workarounds:
The National Instruments USB-6221/6229 devices are not supported by Data Acquisition Toolbox.
To work around this issue with Data Acquisition Toolbox 2.10 (R2007a), perform these steps to add support for these devices:
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-6221] 
 hasAnalogInput   = true 
 numAIChannels    = 16 
 hasAnalogOutput  = true 
 numAOChannels    = 2 
 maxAOSampleRate  = 833000,740000 
 hasDigitalIO     = true 
 digitalPortSize  = 8,8,8 
 digitalPortCap   = 4,4,4 
 [USB-6221 (Mass Termination)] 
 hasAnalogInput   = true 
 numAIChannels    = 16 
 hasAnalogOutput  = true 
 numAOChannels    = 2 
 maxAOSampleRate  = 833000,740000 
 hasDigitalIO     = true 
 digitalPortSize  = 8,8,8 
 digitalPortCap   = 4,4,4 
 [USB-6229] 
 hasAnalogInput   = true 
 numAIChannels    = 32 
 hasAnalogOutput  = true 
 numAOChannels    = 4 
 maxAOSampleRate  = 833000,740000,666000,625000 
 hasDigitalIO     = true 
 digitalPortSize  = 32,8,8 
 digitalPortCap   = 4,4,4 
 [USB-6229 (Mass Termination)] 
 hasAnalogInput   = true 
 numAIChannels    = 32 
 hasAnalogOutput  = true 
 numAOChannels    = 4 
 maxAOSampleRate  = 833000,740000,666000,625000 
 hasDigitalIO     = true 
 digitalPortSize  = 32,8,8 
 digitalPortCap   = 4,4,4
5. Save the file mwnidaqmx.ini and restart MATLAB.
For versions of Data Acquisition Toolbox prior to 2.10 (R2007a), there are no work-arounds.
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