can anyone help me with real time data plot using ni 9234

s = daq.createSession('ni');
s.addAnalogInputChannel('cDAQ2Mod1', 0, 'Voltage');
s.addAnalogInputChannel('cDAQ2Mod1', 1, 'Voltage');
s.Rate = 2000
s.DurationInSeconds = 20;
s
[data5,time] = s.startForeground;
plot(time,data5);
xlabel('Time (secs)');
ylabel('Voltage')

[Walter Roberson]

What difficulty are you observing?

[avinash pabbireddy]

i'm able to get data but i want real time plot can u help me with sample code??

[Walter Roberson]

Where is your callback for when data is ready?

[avinash pabbireddy]

function nidaq9234

global data
s = daq.createSession('ni');
s.addAnalogInputChannel('cDAQ2Mod1',0,'voltage')
s.addAnalogInputChannel('cDAQ2Mod1', 1, 'Voltage');
s.Rate = 2000
s.DurationInSeconds = 20
lh = s.addlistener('DataAvailable',@plotData);
s.startBackground();
% Do something
while(~s.IsDone)
end
close(gcf);
plot(data); %  plot global data
function plotData(src,event)
    persistent tempData;
    global data 
    if(isempty(tempData))
         tempData = [];
     end
     plot(event.TimeStamps, event.Data)
     tempData = [tempData;event.Data];
     data = tempData;

[avinash pabbireddy]

i'm not able to see the plot

[Walter Roberson]

Is your plotData callback being called? If you put a disp() statement in it does the string get displayed ?

[Walter Roberson]

@avinash pabbireddy