Since some hardware device drivers, such as winvideo, were not designed to support repetitive device initialization from within a loop, it is good practice to exclude a call to START from the body of a loop.
As a workaround, you can initialize the device using the START command from outside the loop, and then use manual triggers to retrieve data from within the loop. For example, the code above would change to the following:
vid = videoinput('winvideo');
triggerconfig(vid,'Manual');
set(vid,'TriggerRepeat',inf);
start(vid);
for i = 1:3000
trigger(vid);
wait(vid);
data = getdata(vid);
end
stop(vid);
delete(vid);
clear vid;
