How to create a hardware-timed task for NI USB-6363 DAQ?

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Islam Elnady 2021-10-22

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https://ww2.mathworks.cn/matlabcentral/answers/1569633-how-to-create-a-hardware-timed-task-for-ni-usb-6363-daq

编辑： Islam Elnady 2021-10-22

I'm trying to output an ordinary sinewave from MATLAB via NI USB-6363 DAQ and displaying it on an oscilloscope. The output frequency of the signal shown on the oscilloscope is way smaller than the required. I've configured the frequency at 1000 Hz, but the output is coming around 6 Hz only. I suppose I have to create a hardware-timed task.

I'm sure the oscilloscope is properly configured.

Any help how can I do the task?

Here is what I've tried:

clear;
clc;
d = daq("ni");
addoutput(d,"Dev1","ao0","Voltage");
d.Rate = 1000000;
t = 0;           % Starting time
tt = 25;         % Total time
dt = 0.00001;    % Time step
f =  1000;       % Signal Frequency
while t < tt
    out = 5*sin(2*pi*f*t);  % Resolver Signal
    write(d,out);
    t = t + dt;
end