![]() In its basic form, an interrupt works like this: When you type on a keyboard, move a mouse, or swipe on a touchscreen, you are creating interrupts, and these interrupts get services working that create the appropriate response to your actions. ![]() Interrupts are by no means unique to microcontrollers, they have been used in computers and controllers for decades. ![]() Interrupts are pretty well what the name implies, a method of interrupting the execution of a program in order to take care of something else. One way of keeping control of external inputs, or internal timing events, is to use interrupts. And busy microcontrollers need a way of managing external events, like pushbutton presses, while juggling other inputs and outputs timing processes.
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