Matlab NI Daqmx

For easy control NI DAQ in Matlab by use NI dll.(Without Data Acquisition Toolbox)

Why you should use this ?

1. Easy.
2. Stable. (See "why I create this".)

How easy ?

Read a votage.

daq = daqmx_Task('dev1/ai0');  % create control object.
daq.read

Monitor signal. (Read voltage and plot it.)

daq = daqmx_Task('chan','dev1/ai0','rate',1000); % create control object.
plot(daq.DataTime , daq.data);   % Plot data inside of object. Use loop or callback get continuous signal.

Compare with Matlab Data Acquisition Toolbox

s = daq.createSession('ni') ;
s.DurationInSeconds = 10.0 ;
addAnalogInputChannel(s,'Dev2','ai0','Voltage') ;
s.Rate=4000 ;

% data = startForeground(s); <-- Block mode

lh = addlistener(s,'DataAvailable', @proc) ;  % <-- Background mode
s.startBackground


% Below write in "proc" function
plot(event.TimeStamps, event.Data,'+:')

Why I create this ?

Because Data Acquisition Toolbox in Matlab 2011b has a bug, it can not read complete signal in continuous mode.

And I know peoples love this tool so I separate daqmx tool from my matlab repository.

Usage

Read manual*.html. *.t2t is source write by txt2tags format. Read demo/ also.

If you need english manual, make a issue :D

Install

1. Download DAQmxMidLib/ and daqmx_Task.m .
2. Make sure above files under your matlab search path.

Thanks

Thanks Nathan Tomlin write "daqmx example" first.