Data Acquisition in GUI

Hi,

I wrote the below code into a seperate .m file and it works properly.

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);

But when I copy these code to a push button callback function in my GUI. It stops generate the signal.

Can anyone help me, soooo appriciated!

Answer 1

[Geoff Hayes]

Bohan - see your other question https://www.mathworks.com/matlabcentral/answers/475625-daq-cannot-generate-signal-in-gui-callback-function for an explanation of this behaviour.