Hi Marzena,
While acquiring data using the Data Acquisition Toolbox, the ScansAvailableFcn property is assigned a callback function as a function handle which is triggered every time after the number of scans specified by the ScansAvailableFcnCount property is available from the input channels.
Dq.ScansAvailableFcn = @(src, evt)callback(src, evt, arg1, arg2,…argn);
Dq.ScansAvailableFcnCount = numberOfScansAfterWhichCallbackIsTriggered;
Try making following changes to your code:
dq.ScansAvailableFcn = @(src, evt)dispMyData(src, evt, dq);
dq.ScansAvailableFcnCount = 50;
start(dq, "continuous");
pause(12);
stop(dq);
function dispMyData(src, evt, dq)
data = read(dq, 1, "OutputFormat", "Matrix");
disp(data);
end
To learn more about data acquisition using DAT, refer the following documentation: Interface to data acquisition device - MATLAB
Hope it is helpful!
