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46 lines
1.5 KiB
Markdown
46 lines
1.5 KiB
Markdown
7 months ago
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---
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{
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"title": "Embedded Basics",
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"date": "2020-07-06T00:00:00",
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"author": "Felix Queißner",
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"draft": false,
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"layout": "tutorial.html",
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"tags": []
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}
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---
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4 years ago
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# Embedded Basics
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4 years ago
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In this tutorial, you'll learn the absolute basics of the embedded world. If
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you have already experience with embedded systems and/or electronics, this
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chapter probably doesn't provide anything new to you.
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## Prerequisites
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None! This is your entry point into the embedded world!
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4 years ago
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## Contents
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4 years ago
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<!-- TOC -->
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4 years ago
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## What are embedded systems?
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Wikipedia does a good job defining embedded systems with this opener:
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> An embedded system is a computer system—a combination of a computer processor, computer memory, and input/output peripheral devices—that has a dedicated function within a larger mechanical or electrical system.
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So at the end of the day, if you are adding any sort of computation to some object who's main purpose is not being a computer, it's an embedded system.
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Some examples of Embedded systems:
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7 months ago
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4 years ago
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- cars
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- industrial control systems
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- mars rovers
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4 years ago
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- digital thermometer
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4 years ago
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### Real time
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An important characteristic that's often required for an embedded system is "real time".
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This is simply the ability for the system to respond to an input within a hard deadline, Eg. automatic breaks for a car.
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A general operating system like Linux is not suitable for these applications because it uses time sharing when scheduling tasks/programs, and unreliably responds to important signals.
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3 years ago
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## MORE COMING SOON
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