UrbanPro
true

Learn Embedded & VLSI from the Best Tutors

  • Affordable fees
  • 1-1 or Group class
  • Flexible Timings
  • Verified Tutors

Search in

Basics Of Embedded System

X
Xplora Technologies
01/02/2017 0 0

TOPICS TO BE DISCUSSED

  • System
  • Embedded System
  • Components
  • Classifications
  • Processors
  • Other Hardware
  • Software

INTRODUCTION:

What is a system?,

  A system is a way of working, organizing or doing one or many tasks according to a fixed plan, program or set of rules.

  A system is also an arrangement in which all its units assemble and work together according to the plan or program.

SYSTEM EXAMPLES

WATCH

It is a time display SYSTEM

Parts: Hardware, Needles, Battery, Dial,

           Chassis and Strap

Rules

1.All needles move clockwise only

2.A thin needle rotates every second

3.A long needle rotates every minute  

4.A short needle rotates every hour

5.All needles return to the  original position after 12 hours

WASHING MACHINE

It is an automatic clothes washing SYSTEM

Parts: Status display panel, Switches & Dials, Motor, Power supply & control unit, Inner water level sensor and solenoid valve.

Rules

1.Wash by spinning

2. Rinse

3. Drying

4.Wash over by blinking

5. Each step display the process stage

6. In case interruption, execute only the remaining.

EMBEDDED SYSTEM DEF

Definition: An Embedded System is one that has computer hardware with software embedded in it as one of its important components.     

Its software embeds in ROM (Read Only Memory). It does not need secondary memories as in a computer.

Components of computer hardware:

A Microprocessor

A Large Memory (Primary and Secondary) (RAM, ROM and caches)

Input Units (Keyboard, Mouse, Scanner, etc.)

Output Units (Monitor, printer, etc.)

Networking Units (Ethernet Card, Drivers, etc.)

I/O Units (Modem, Fax or Modem, etc.)

COMPONENTS OF EMBEDDED SYSTEM:

1). It has Hardware:

  Processor, Timers, Interrupt controller, I/O Devices, Memories, Ports, etc.

2). It has main Application Software:

  Which may perform concurrently the series of tasks or multiple tasks.

3). It has Real Time Operating System (RTOS):

  RTOS defines the way the system work. Which supervise the application software. It sets the rules during the execution of the application program. A small scale embedded system may not need an RTOS.

EMBEDDED SYSTEM CONSTRAINTS

An embedded system is software designed to keep in view three constraints:

1. Available system memory

2. Available processor speed –The need to limit the power dissipation

  When running the system continuously in cycles of wait for events, run, stop and wakeup.

 What makes embedded systems different?

  • Real-time operation
  • size
  • cost
  • time
  • reliability
  • safety
  • energy
  • security.

VARIOUS PROCESSOR:

1. General Purpose processor (GPP):

  Microprocessor,   Microcontroller,  Embedded Processor,   Digital signal Processor

2. Application Specific System Processor (ASSP)

3. Multi Processor System using GPPs.

EMBEDDED PROCESSOR:

  • Special microprocessors & microcontrollers often called, Embedded processors.
  • An embedded processor is used when fast processing fast context-switching & atomic ALU operations are needed.

Examples : ARM 7, INTEL i960, AMD 29050.

APPLICATION SPECIFIC SYSTEM PROCESSOR (ASSP):

  • ASSP is dedicated to specific tasks and provides a faster solution.
  • An ASSP is used as an additional processing unit for running the application in place of using embedded software.

Examples : IIM7100, W3100A.

MULTI PROCESSOR SYSTEM USING GPPs:

  • Multiple processors are used when a single processor does not meet the needs of different task.
  • The operations of all the processors are synchronized to obtain an optimum performance.

APPLICATIONS:

  • Household appliances:   Microwave ovens, Television, DVD   Players & Recorders
  • Audio players
  • Integrated systems in aircrafts and missiles
  • Cellular telephones
  • Electric and Electronic Motor controllers
  • Engine controllers in automobiles
  • Calculators
  • Medical equipments
  • Videogames
  • Digital musical instruments, etc.
0 Dislike
Follow 0

Please Enter a comment

Submit

Other Lessons for You

Transistors
A transistor can be used as a switch and signal amplifier. It is an electronic device with three contacts: the emitter (E), base (B) and collector (C). A very small current on the transistor's base can...

Object - Oriented Programming
As we know already JAVA is object oriented language. Object-oriented programming (OOP) is a programming paradigm based on the concept of "objects", which are data structures that contain data, in the form...

E-Book
An e-book or eBook is also known as electronic book, digital book and e-edition. It is a book length publication which contains text of text, images, or both, and produced on Published through, and readable...

10 Tips to improve your learning
1. Have a quick revision of topics that you have read in past three days before you start studying a new topic. 2. Make your own notes containing the summary of the topic. 3. Allot proper timing for...

Linear motion
Linear motion is motion along a straight line, and can therefore be described mathematically using only one spatial dimension. It can be uniform, that is, with constant velocity (zero acceleration), or...
X

Looking for Embedded & VLSI Classes?

The best tutors for Embedded & VLSI Classes are on UrbanPro

  • Select the best Tutor
  • Book & Attend a Free Demo
  • Pay and start Learning

Learn Embedded & VLSI with the Best Tutors

The best Tutors for Embedded & VLSI Classes are on UrbanPro

This website uses cookies

We use cookies to improve user experience. Choose what cookies you allow us to use. You can read more about our Cookie Policy in our Privacy Policy

Accept All
Decline All

UrbanPro.com is India's largest network of most trusted tutors and institutes. Over 55 lakh students rely on UrbanPro.com, to fulfill their learning requirements across 1,000+ categories. Using UrbanPro.com, parents, and students can compare multiple Tutors and Institutes and choose the one that best suits their requirements. More than 7.5 lakh verified Tutors and Institutes are helping millions of students every day and growing their tutoring business on UrbanPro.com. Whether you are looking for a tutor to learn mathematics, a German language trainer to brush up your German language skills or an institute to upgrade your IT skills, we have got the best selection of Tutors and Training Institutes for you. Read more