![]() Interrupts are great for monitoring events such as switch presses or alarm triggers, which occur spasmodically. When the interrupt code has finished, the program resumes where it left off.The code related to the interrupt is run.The program is paused, and its data is put aside so that it can resume later.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. Microcontrollers can provide precision timing pulses.īecause they can handle multiple inputs, and because they can do many things, microcontrollers can get quite busy.Microcontrollers can handle multiple inputs and outputs.There are a lot of good reasons for doing that, among them: When we design a project, we usually base it upon a microcontroller. While we will be focusing on an Arduino Uno, the concepts presented here are equally valid with other boards. Today we will be learning about interrupts, a very important and fundamental feature of the Arduino and other microcontrollers. 5.5 Pin Change Interrupt Example 2 – Multiple Interrupts on the Same Port.5.4 Pin Change Interrupt Example 1 – Simple Interrupt.5.3 Experimenting with Pin Change Interrupts.5.2.2 Enable/Disable the Pins on the Port.4.3 Rewriting our Sketch for Hardware Interrupts.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |