Thursday, February 24, 2022

Anna University EC2042 Embedded and Real Time Systems Nov Dec 2021 Question Paper

Anna University Previous Years Question Paper

Question Paper Code : 80420 

Reg. No. : 


Eighth Semester 

Electronics and Communication Engineering 


(Regulations 2008) 

Time : Three hours Maximum : 100 marks 

Answer ALL questions. 

PART A — (10 × 2 = 20 marks) 

1. Differentiate top-down and bottom-up design. 

2. List the functions of ARM processor in supervisor mode. 

3. What is ‘memory map’ input-output interface? 

4. What is need for Bus Arbitration? 

5. Define Processes. 

6. What is context switching? 

7. State the need for accelerators. 

8. Differentiate between fixed priority arbitration and round — robin arbitration. 

9. What is signal servicing function? 

10. Give the stops to destroy a message queue. 

PART B — (5 × 16 = 80 marks) 

11. (a) (i) Develop the requirement, specification and state diagram of a model train controller. (12) 

 (ii) Implement the C switch statement in ARM. (4) 


(b) (i) With the help of a program segment explain how characters are copied from input to output using interrupts and buffers. (8) 

 (ii) Explain about caches and memory management units. (8) 

12. (a) (i) Explain the component interfacing. (8) 

 (ii) Explain the memory devices. (8) 


(b) (i) Describe the basic compilation techniques. (8) 

 (ii) Explain the debugging process. (8) 

13. (a) (i) Describe in detail about the Inter Process Communication mechanisms. (12) 

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


(b) Discuss in detail about power optimization strategies for CPU operation.  (16) 

14. (a) Discuss in detail about distributed embedded architecture with neat sketches. (16) 


(b) Explain in detail about networks for embedded systems with an example.  (16) 

15. (a) Write in detail about the embedded concepts in the design of Data Compressor and Software Modem. (16) 


(b) Explain the method of Hardware-Software co design for an embedded system application with an example. (16) 



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