stop

Stop background operation

Syntax

Description

example

stop(s); stops the session and all associated hardware operations in progress. Stopping the session flushes all undelivered data that is below the threshold defined by the property NotifyWhenDataAvailableExceeds, and will not fire any more DataAvailable events.

Examples

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Create a continuous signal in background mode, and generate output until you explicitly stop it.

Generate output data.

s = daq.createSession('ni');
addAnalogOutputChannel(s,'cDAQ1Mod2',0,'Voltage');
s.IsContinuous = true;
s.Rate = 10000;
data = linspace(-1,1,5000)';
lh = addlistener(s,'DataRequired', ...
         @(src,event) src.queueOutputData(data));
queueOutputData(s,data)
startBackground(s);

Perform other MATLAB operations during signal generation, then stop the session when you no longer need the signal.

stop(s);

Input Arguments

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Data acquisition session, specified as a session object. Create the session object using daq.createSession. Use the data acquisition session for acquisition and generation operations. Create one session per vendor and use that vendor session to perform all data acquisition operations.

See Also

Functions

Introduced in R2010b