MATLAB Programming Fundamentals - MathWorks

Timer Callback Functions

In this section...

“Associating Commands with Timer Object Events” on page 27-5

“Creating Callback Functions” on page 27-6

“Specifying the Value of Callback Function Properties” on page 27-8

NoteCallback function execution might be delayed if the callback involves a CPU-

intensive task such as updating a figure.

Associating Commands with Timer Object Events

The timer object supports properties that let you specify the MATLAB commands that

execute when a timer fires, and for other timer object events, such as starting, stopping,

or when an error occurs. These are called callbacks. To associate MATLAB commands

with a timer object event, set the value of the associated timer object callback property.

The following diagram shows when the events occur during execution of a timer object

and give the names of the timer object properties associated with each event. For

example, to associate MATLAB commands with a start event, assign a value to the

StartFcn callback property. Error callbacks can occur at any time.

Timer Callback Functions