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2003 Course Embedded Systems

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Total No. of Questions : 12] P1193 [Total No. of Pages : 2 [3664]-347 B.E. (Computer Engineering & I.T.) EMBEDDED SYSTEMS (2003 Course) (410451) Time : 3 Hours] [Max. Marks : 100 Instructions to the candidates: 1) 2) 3) 4) 5) Answers to the two sections should be written in separate answer books. In section I attempt: Q.No.1 or Q.No.2, Q.No.3 or Q.No.4, Q.No.5 or Q.No.6. In section II attempt: Q.No.7 or Q.No.8, Q.No.9 or Q.No.10, Q.No.11 or Q.No.12. Neat diagrams must be drawn wherever necessary. Figures to the right indicate full marks. Assume suitable data, if necessary. SECTION - I Q1) a) What are the characteristics of embedded systems? Explain. b) Explain interrupt handling in ARM7. [8] [8] OR Q2) a) With the help of neat diagram, describe different components of embedded systems. [6] b) What are the features of ARM7 architecture? [6] c) Differentiate between CISC and RISC. [4] Q3) a) Explain the process of converting the following using block diagram.[12] i) C program into a file for ROM image. ii) Assembly program into a file for ROM image. b) What are the types of memory that can be integrated in a processor? [6] OR Q4) a) What is Watchdog timer? What is its importance in embedded systems?[6] b) How does clock unit can affect the performance of an embedded system? [6] c) What is DMA? What is its role in an embedded system? [6] Q5) a) What are the different standards available for serial & parallel I/O? What [6] are the applications of these I/O methods? b) Explain with neat diagrams, the data transfer mechanism on I2C bus.[10] OR P.T.O. Q6) a) What do you mean by Context, Interrupt Latency and Deadline? [8] b) Define a task, a thread & a process. What are the different IPCs used in multiprocessor systems? [8] SECTION - II Q7) a) What are the different phases of software development cycle for a typical embedded system? [8] b) Explain the use of Java language for embedded system? What are the disadvantages of Java? [6] c) When do you use high level language instead of assembly language for embedded system programming? [4] OR Q8) a) Explain the use of C++ in embedded system programming? [6] b) What is cross compiler? How it is different than generic compiler? [6] c) What are the different ways to debug the embedded system software?[6] Q9) a) With the help of neat diagram, explain cyclic scheduling with time slicing [8] model for RTOS. b) List the different features of embedded OS? How it is different than RTOS? [8] OR Q10) a) When RTOS is necessary in an embedded system? Explain. b) What are the OS security issues? [8] [8] Q11) a) Differentiate MicroC/OS-II and VxWorks based on features and their area of application. [6] b) With the help of neat system block diagram, explain the system requirements and tasks for chocolate vending machine. [10] OR Q12) a) How tasks are managed in MicroC/OS-II? Explain in detail. [8] b) With help of neat diagram, explain synchronization of tasks and IPCs for chocolate vending machine. [8] [3664]-347 2

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