dsds

1. DEPARTMENT OF ELECTRONICS & COMMUNICATION ENGINEERING
IV YEAR ECE -Model Examination
EC8791-Embedded & Real Time Systems
PART-A (10*2=20 Marks)
1. Interpret the importance of DCC in train controller
2. Justify the need of UMLlanguage forEmbedded system design
3. List the functions of ARM Processor in supervisory mode
4. Summarize the five peripherals in the LPC 2148 MCU.
5. Draw a Data Flow Graph and Control/ Data Flow Graph (CDFG) with an example.
6. Interpret the differences between loop fusion and loop tiling
7. Statethe limitation of Rate Monotonic algorithm
8. Outlinethe features of preemptive and non-preemptive schedule
9. List the major function of POSIX RTOS
10. Draw the block diagram of Distributed embedded systems
PART - B (5*13=65 Marks)
11. a) Develop the requirement, specification and state diagram of a model train controller
with necessary illustrations
(OR)
b) Illustrate with diagrams the system design methods using
(i) Water fall (ii) Spiral and (iii) Successive refinement model
12. a) From the fundamentals, draw the architecture of ARM processor with relevant
explanation.
(OR)
b) Draw the architecture of ARM Cortex M3 MCU processor and describe its functional
units.
13. a) List the different models of Program Briefly explain with neat diagrams on various
Models of program
(OR)

2. b) Outline the Program level energy and power analysis and optimization
14. a) Summarize the concepts of impact of faults and Loss of synchrony in fault tolerant
systems.
(OR)
b) Describe the structure of real time systems & explain its characteristics
15. a) (i) Describe the real time operating system called POSIX in detail.
(ii) Write short notes on power optimization strategies in embedded system.
(OR)
b) Explain the concepts of Multiprocessor System-On-Chip (MPSoC) and Shared
memory multiprocessor are used in embedded applications.
PART - C (1*15=15 Marks)
16. a) From design flow analysis to architectural design, illustrate video Accelerator using
UML methodology
(OR)
b) Explain the working of Engine control unit in detail.
i). Theory of operations and requirements (4)
ii). Specification (4)
iii). System Architecture (3)
iv). Component designing and testing (2)
v). System integration and testing. (2)