MATLAB Programming

10 Scheduling Program Execution with Timers
Example: Displaying a Message
The following example sets up a timer object that executes a MATLAB
command string after 10 seconds elapse. The example creates a timer
object, specifying the values of two timer object properties, TimerFcn and
StartDelay. TimerFcn specifies the timer callback function. This is the
MATLAB command string or M-file that you want to execute when the
timer fires. In the example, the timer callback function sets the value of
the MATLAB workspace variable stat and executes the MATLAB disp
command. The StartDelay property specifies how much time elapses before
the timer fires.
After creating the timer object, the example uses the start function to start
the timer object. (The additional commands in this example are included to
illustrate the timer but are not required for timer operation.)
t = timer('TimerFcn', 'stat=false; disp(''Timer!'')',...
'StartDelay',10);
start(t)
stat=true;
while(stat==true)
disp('.')
pause(1)
end
When you execute this code, it produces this output:
.
.
.
.
.
.
.
.
.
Timer!
delete(t) % Always delete timer objects after using them.
10-4