Issue with NI USB-6363 DAQ and MATLAB interface

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Islam Elnady
Islam Elnady 2021-10-13
I have an issue outputting 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'm sure the oscilloscope is properly configured.
Any help what the cause might be?
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
Output on oscilloscope

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