Embedded System PPT
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Transcript of Embedded System PPT
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Embedded System
SUBMITTED BY-
DEEPAK SHARMA
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CONTENT’S
• INTRODUCTION• HISTORY• ARCHITECTURE OF EMBEDDED SYSTEM• APPLICATION’S• ESSENCIAL COMPONENTS• STRUCTURE• CLASSIFICATION• CONCLUSION
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WHAT IS EMBEDDED SYSTEM?
An Embedded System is a microprocessor based system that is embedded as a subsystem, in a larger system (which may or may not be a computer system).
I/p O/p
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CENTRAL PROCESSOR UNIT
RAM ROM
O/P DEVICE
COMMUNICATION INTERFACE
APPLICATION SPECIFIC CIRCUIT
I/P DEVICE
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HISTORY
• First embedded system was made in MIT instrumentation library,usa.
• Many type of gates were used
• For only small applications
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Application areas• Automative electronics
• Aircraft electronics
• Trains
• Telecommunications
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Application areas
• Medical systems• Medical systems
• Military applications• Military applications
• Authentication• Authentication
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Application areas
• Consumer electronics
• Fabrication equipment• Fabrication equipment
• Smart buildings• Smart buildings
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Essential Components
• Microprocessor / DSP
• Actuators
• Memory (On-chip and Off chip)
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• Converters (A-D and D-A)
• Sensors
• Communication path with the interacting environment
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Embedded System Structure(Generic)
Memory
Processor & ASICs
A-D
Sensor D-A
o/p
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Essential Considerations
• Response Time• Area• Cost• Low Power (Battery Life)• Reliability
Fault Tolerance
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General Characteristics of Embedded Systems
• Perform a single task • Increasingly high performance and real time
constrained• Power, cost and reliability are important
considerations• HW-SW systems
– Software is used for more features and flexibility
– Hardware (processors, ASICs, memory etc. are used for performance and security
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Classification of Embedded Systems
• Stand alone Embedded system
• Real time Embedded system
• Networked information appliances
• Mobile devices
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Stand alone embedded system
• Performs only one task(specific)
• example-1.LCD,LED systems,TV remote system etc.
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Real time systems
• 1.Soft Real Time
• 2.Hard Real Time
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Networking Information Appliances
• Networking
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Mobile System
• PDA
• Mobile systems
• Video Games
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Importance of Embedded Softwareand Embedded Processors
Most of the functionalityof embedded systemswill be implemented in software!
• “... the New York Times has
• estimated that the average
• American comes into contact with about 60 micro-processors every day....” [Camposano, 1996]
Latest top-level BMWs contain over 100 micro-processors[Personal communication]
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CONCLUSION
• Now a days the role embedded systems is formal
• Es makes the tasks simple
• Es is growing as the technology grows
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THANKSTHANKS