7th Sem # ECE# EC8791-Embedded and Real Time Systems # Unit 4- Introduction and Structure of Real Times Systems.

1. RMK COLLEGE OF ENGINEERING AND
TECHNOLOGY
DEPARTMENT OF ELECTRONICS AND COMMUNICATION ENGINEERING
Ms. S. Rajalakshmi
EMBEDDED AND REAL TIME
SYSTEM

2. Unit- 4
REAL TIME SYSTEMS
Structure of a Real Time
System
01
Estimating Program Run
Time
02
Task Assignment and
Scheduling
03
Fault Tolerance
Techniques
04
Reliability , Evaluation05
Clock Synchronization06

3. • Infographic StylePrescribed Text Books & Reference Books
TEXT BOOK
Jane W.S.Liu,‖ Real Time Systems‖, Pearson
Education, Third Indian Reprint, 2003.(UNIT IV)
REFERENCE
C.M. Krishna, Kang G. Shin, ―Real-Time Systems‖,
International Editions, Mc Graw Hill 1997

4. S.No Topic Online
Source
Duration
1 Mastering RTOS: Hands on Free RTOS and STM32Fx
with Debugging
Udemy 15 hours
2 Embedded Hardware and Operating Systems Coursera 4 weeks

5. • Infographic Style
 Any system where a timely response by the computer to external stimuli
is vital is a real time system.
 Real-time system runs task that have deadline

6. • Infographic Style
Controlling Aircraft Sometimes No……..
Soft Real Time System
Playing video games,
video conferencing

8. • Infographic StyleTASKS, PROCESS, THREADS
Task-Set of program/instructions that are loaded into memory
Process- Program under execution
Thread-Unit of execution within a process

10. • Infographic StyleCHARACTERISTICS OF REAL TIME SYSTEM

11. ISSUES IN REAL TIME COMPUTING
1. ARCHITECTURE ISSUES
 Processor Architecture
 Network Architecture
 Architecture for clock synchronization
 Fault Tolerance and Reliability evaluation
2. OPERATING SYSTEM ISSUES
 Task assignment and scheduling
 Communication protocol
 Failure Management and recovery
 Clock synchronization algorithms
3. OTHER ISSUES
 Programming Languages
 Data bases
 Performance measures

12. CHALLENGES IN REAL TIME SYSTEM DESIGN

13. MAIN DESIRABLE PROPERTIES OF REAL TIME SYSTEM

14. DIFFERENCE BETWEEN RTOS AND GPOS

15. 1. STRUCTURE OF A REAL TIME SYSTEM

16. SCHEMATIC DECOMPOSITION OF REAL TIME CONTROL COMPUTER

17. THANK YOU