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How to generate +5V signal using matlab?

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W Joey
W Joey 2015-7-13
编辑： W Joey 2015-7-13
Hi, i want to generate continuous +5V signal for 3 seconds from NI DAQ device.
s=daq.createSession('ni');
addAnalogOutputChannel(s,'Dev1',0,'Voltage');
addAnalogOutputChannel(s,'Dev1',1,'Voltage');
t=0:0.001:3;
w=6;
outputSignal=0.5*rectpuls(t,w)';
queueOutputData(s,[outputSignal outputSignal]);
s.startForeground
However it does not work properly, anyone can tell me is there anything wrong with the code?

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