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Note for Embedded System - ES By Danny Sam

  • Embedded System - ES
  • Note
  • IIT Kharagpur IITKGP - IITKGP
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Module 1 Introduction Version 2 EE IIT, Kharagpur 1

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Lesson 1 Introduction to Real Time Embedded Systems Part I Version 2 EE IIT, Kharagpur 2

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Example, Definitions, Common Architecture Instructional Objectives After going through this lesson the student would be able to • Know what an embedded system is • distinguish a Real Time Embedded System from other systems • tell the difference between real and non-real time • Learn more about a mobile phone • Know the architecture • Tell the major components of an Embedded system Pre-Requisite Digital Electronics, Microprocessors Introduction In the day-to-day life we come across a wide variety of consumer electronic products. We are habituated to use them easily and flawlessly to our advantage. Common examples are TV Remote Controllers, Mobile Phones, FAX machines, Xerox machines etc. However, we seldom ponder over the technology behind each of them. Each of these devices does have one or more programmable devices waiting to interact with the environment as effectively as possible. These are a class of “embedded systems” and they provide service in real time. i.e. we need not have to wait too long for the action. Let us see how an embedded system is characterized and how complex it could be? Take example of a mobile telephone: (Fig. 1.1) Version 2 EE IIT, Kharagpur 3

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Fig. 1.1 Mobile Phones Version 2 EE IIT, Kharagpur 4

Lecture Notes