UB CSE 321 - Lecture notes (27 pages)

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Lecture notes



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Lecture notes

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Lecture Notes


Pages:
27
School:
University at Buffalo, The State University of New York
Course:
Cse 321 - Realtime Embed Systems
Realtime Embed Systems Documents

Unformatted text preview:

Introduction to Realtime Systems Embedded Systems B Ramamurthy CSE321 This course is partially supported National Science Foundation NSF DUE Grant 0737243 01 14 19 1 The course will enable you to Understand and design embedded systems and real time systems For real time systems Identify the unique characteristics of realtime systems Explain the general structure of a realtime system Define the unique design problems and challenges of real time systems Apply real time systems design techniques to various software programs 01 14 19 2 Course overview For embedded systems it will enable you to Understand the basics of an embedded system Program an embedded system Design implement and test an embedded system Ex realtime embedded heart pacemaker Ex realtime online video games 01 14 19 3 Global Embedded Systems Market Global Embedded Systems Market 2003 2009 Millions Source BBC Inc http www the infoshop com study bc31319 embedded systems html 01 14 19 4 Example real time and embedded systems Domain Application Avionics Navigation displays Multimedia Games simulators Medicine Robot surgery remote surgery medical imaging Industrial systems Robot assembly lines automated inspection Civilian Elevator control Automotive system Global positioning system GPS 01 14 19 5 Lets discuss some realtime system RTS characteristics 01 14 19 6 Realtime Characteristics RTS have to respond to events in a certain pre detemined amount of time The time constraints have to be considered during planning design implementation and testing phases Internal failures due to software and hardware fault have be handled satisfactorily You cannot simply pop up a dialog error box that says send report or don t send report Also external failures due to outside sources need to be handled 01 14 19 7 Realtime Characteristics contd Typical interaction in an RTS is asynchronous Thus an RTS should have features to handle asynchronous events such as interrupt handlers and dispatcher and associated resources



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