Hello Adriana,
The delay you are experiencing in your code is due to the use of the “tic” and “toc” functions. These functions measure the elapsed time between their calls, but they are not accurate for measuring small time intervals like “acq_time”. Instead, you can use the “datetime” function to get the current time and calculate the elapsed time between iterations.
Here's an updated version of your code that uses “datetime” for timing:
dataFocus = [];
h = animatedline();
acq_time = 0.01;
N = 1;
start(dq, "Continuous")
prevTime = datetime('now');
while true
dataIn = read(dq, seconds(acq_time));
currTime = datetime('now');
timing = seconds(currTime - prevTime);
prevTime = currTime;
n0 = max(dataIn.Dev1_ctr0) - min(dataIn.Dev1_ctr0);
dataFocus = n0 / timing;
addpoints(h, N, dataFocus);
drawnow
N = N + 1;
end
Refer to the following MATLAB documentation for more information:
I hope this resolves your issue.
