Embedded System
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Where are they? Driven a car or landed safely in airplane ? The same goes for PDA,benifiting from complex medical equipment, or consuming electricity from our local power company. Embedded Systems are everywhere.
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From the beginning… The Microprocessor application are classified in 2 categories: 1> Reprogrammable Systems 2> Embedded Systems. Reprogrammable System include general-purpose Microprocessor
Embedded System
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From the beginning… In Embedded systems, the Microprocessor is a part of a final product. Typical Example…
Embedded System
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What is Embedded Sys.? An embedded system is some combination of computer hardware and software Either fixed in capability or programmable Specifically designed for a particular kind of application device.
Embedded System
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The fact about it… Experts do seem to agree on: “An embedded system is any software system that must be designed on a platform different from the platform on which the system is intended to be deployed.” What is meant by platform?
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Embedded System Performance What do we mean by performance? A maximally acceptable process time is rigidly observed Need not be super fast How about simplicity?
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Embedded System Performance What’s the objective of Embedded System? - Smallest amount of code. - Highest level of predictability. How could this possible?
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Review Of Embedded Sys.! Must be developed in a cross-development environment Implement functions that provide an element of control in an asynchronous world. Use the smallest amount of code to achieve the greatest necessary speed and degree of predictability possible.
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Target Platforms For the simplest target platforms -- platforms that are inexpensive and consume minimal power Functions are typically written in C and then "burned" into some Read Only Memory on an 8-bit or 16-bit microprocessor.
Embedded System
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Target Platforms As the need for features increases it becomes more important to have some sort of decision making mechanism be part of the embedded system. Real-Time Operating System (RTOS).
Embedded System
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Target Platforms An RTOS runs your PDA. But why real-time system? In the embedded industry, "real-time" is used to refer to a system that must compute a result, based on certain inputs, in less than a maximally acceptable time -- i.e., it must respond in real time.
Embedded System
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Examples of Embedded System
Home automation uses wired- and wirelessnetworking -lights, climate, security, audio/visual,etc Automobiles, electric vehicles. and hybrid vehicles Other automotive safety systems such as antilock braking system , Electronic Stability Control, and automatic four-wheel drive.
Embedded System
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Summary Embedded systems are everywhere Key challenge: optimization of design metrics Design metrics compete with one another A unified view of hardware and software is necessary to improve productivity
Embedded System
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Embedded System
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Embedded System
2
From the beginning… The Microprocessor application are classified in 2 categories: 1> Reprogrammable Systems 2> Embedded Systems. Reprogrammable System include general-purpose Microprocessor
Embedded System
3
From the beginning… In Embedded systems, the Microprocessor is a part of a final product. Typical Example…
Embedded System
4
What is Embedded Sys.? An embedded system is some combination of computer hardware and software Either fixed in capability or programmable Specifically designed for a particular kind of application device.
Embedded System
5
The fact about it… Experts do seem to agree on: “An embedded system is any software system that must be designed on a platform different from the platform on which the system is intended to be deployed.” What is meant by platform?
Embedded System
6
Embedded System Performance What do we mean by performance? A maximally acceptable process time is rigidly observed Need not be super fast How about simplicity?
Embedded System
7
Embedded System Performance What’s the objective of Embedded System? - Smallest amount of code. - Highest level of predictability. How could this possible?
Embedded System
8
Review Of Embedded Sys.! Must be developed in a cross-development environment Implement functions that provide an element of control in an asynchronous world. Use the smallest amount of code to achieve the greatest necessary speed and degree of predictability possible.
Embedded System
9
Target Platforms For the simplest target platforms -- platforms that are inexpensive and consume minimal power Functions are typically written in C and then "burned" into some Read Only Memory on an 8-bit or 16-bit microprocessor.
Embedded System
10
Target Platforms As the need for features increases it becomes more important to have some sort of decision making mechanism be part of the embedded system. Real-Time Operating System (RTOS).
Embedded System
11
Target Platforms An RTOS runs your PDA. But why real-time system? In the embedded industry, "real-time" is used to refer to a system that must compute a result, based on certain inputs, in less than a maximally acceptable time -- i.e., it must respond in real time.
Embedded System
12
Examples of Embedded System
Home automation uses wired- and wirelessnetworking -lights, climate, security, audio/visual,etc Automobiles, electric vehicles. and hybrid vehicles Other automotive safety systems such as antilock braking system , Electronic Stability Control, and automatic four-wheel drive.
Embedded System
13
Summary Embedded systems are everywhere Key challenge: optimization of design metrics Design metrics compete with one another A unified view of hardware and software is necessary to improve productivity
Embedded System
14
Embedded System
15
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