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Reg. No. :

Question Paper Code: 71425

B.E./B.Tech. DEGREE EXAMINATION, APRIL/MAY 2015

Eighth Semester

Electronics and Communication Engineering

EC2042/EC801 EMBEDDED AND REALTIME SYSTEMS

(Regulation 2008)

Time: Three hours Maximum: 100 marks

Answer ALL questions

Part A (10 2 = 20 marks)

1.

Give two features that differ a general purpose Microcontroller from an

embedded processor.

2.

What are the factors which governs the performance of a CPU?

3.

What is memory mapinput-output interface?

4.

What is need for Bus Arbitration?

5.

How is a Real Time operating systems uniquely different than a general

purpose OS?

6.

What is Context Switching?

7.

State the needs of accelerators.

8.

What do you mean by network based design?

9.

What is hardware and software co design?

10.

Give- any two advantages of Data Compressor.

Part B(5 16 = 80 marks)

11. (a) (i) Explain the Model Train Controller with neat sketch. (8)

(ii) Discuss about formalism for system design. (8)

Or

(b) What are the parameters to be considered while designing an Embedded

System design process? Explain. (16)

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12. (a) (i) Describe need for ICE, JTAG for embedded system development. (12)

(ii) What is advantage of vectored addressing of stack? (4)

Or

(b) (i) What do you mean by Model of programs? Explain. (8)

(ii) Describe about basic compilation techniques. (8)

13. (a) (i) Describe in detail about the Inter Process Communication

mechanisms. (12)

(ii) Write short notes on Co-operative scheduling. (4)

Or

(b) Discuss in detail about power optimization strategies for CPU operation.

(16)

14. (a) Explain about distributed embedded architecture with suitable examples.(16)

Or

(b) Describe about Internet enabled systems in detail. (16)

15. (a) (i) Justify through two features on how system on chip design is useful.

(4)

(ii) Enumerate some of the FOSS tools for embedded system development

and explain. (12)

Or

(b) Write short notes on:

(i)

PDAs (8)

(ii)

Set Top Box. (8)

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