1. A
Paper Presentation
on
Embedded Systems
www.powerpointpresentationon.blogspot.com

2. Embedded System ???......
• Hardware is driven and controlled by
software
• Software runs in a computer system
(usually a micro-controller)
• Preprogrammed to do specific function
Let us look into some examples……

3. • Microcontroller based lock
• Thermostat controller
• Pacemaker

4. Applications
• Communications
• Automotive automatic braking
• Military applications – Missile
guidance systems
• Industrial applications
• Robotics

5. System organization

6. Embedded system design
requirement
• Computer design requirement
• System-level requirement

7. Computer design requirement
• Real time/reactive operation
• Small size, low weight
• Safe and reliable
• Harsh environment
• Cost sensitivity

8. System-level requirement
• End product utility
• System safety and reliability
• Controlling physical systems
• Power management

9. Software design issues
• Round robin scheme
Loop:
Await tick;
Read S1;take action(S1);
Read S2;take action(S2);
Read S3;take action(S3);
Forever

10. Concurrent Programming

11. QNX-RTOS
Features:
• Micro kernel architecture
• Message based interprocess
communication

12. PROCESS
RUNNING READY
WAITING EVENT
BLOCKED

13. Synchronous Programming
3 Level Architecture:
• Interactive I/O interface
• Reactive kernel
• Data management

15. Future Possibilities
• More and more produced processors are
used in embedded devices
• New applications like pervasive computing
are emerging

16. REFERENCES
• Book(s):
Embedded microcomputer system- real time interfacing :
Jonathan W. Valvano
• Website(s):
1.http://www.cs.cmu.edu
2.http://www.embedded.com
3.http://www.esterel.org
4.http://www.qnx.com

17. THANK YOU !!!!!.......