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2003 Course Embedded Systems Design

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Total No. of Questions : 12] [Total No. of Pages : 3 [3764]-245 P1481 B.E. (Electronics) EMBEDDED SYSTEMS DESIGN (404205) (2003 Course) Time : 3 Hours] [Max. Marks : 100 Instructions to candidates : 1) Answer three questions from each section. 2) Answers to the two sections should be written in separate books. 3) Neat diagrams must be drawn wherever necessary. 4) Figures to the right indicate full marks. 5) Assume suitable data, if necessary. SECTION - I Q1) a) What is an embedded system? How it differs from a general purpose computing system? [4] b) What are the special considerations in designing embedded systems.[6] c) Explain MODBUS message structure and device addressing. [8] OR Q2) a) For a particular product the NRE cost and unit cost for three IC technologies are as follows: FPGA (Rs. 10,000, Rs. 50); ASIC (Rs. 50,000, Rs. 10) and VLSI (Rs. 2,00,000, Rs. 5). Determine precise volumes for which each technology yields the lowest total cost. [10] b) Explain time-to-market design metric. [4] c) Explain the MAC protocol used in IEEE 802.11. [4] Q3) a) What are the different categories of embedded operating systems? [3] b) Explain the architecture of digital signal processor. [8] c) Explain the term interrupt latency with suitable example. [5] OR P.T.O. Q4) a) b) Q5) a) b) Explain TCP / IP protocol suite. [10] Explain the hardware architecture of an embedded system. [6] Explain pre-emptive and non-pre-emptive multitasking. [8] Explain different productivity tools for developing software systematically. [8] OR Q6) a) Explain the process of creating MIDLet. [4] b) What is code optimization? Explain some important code optimization guidelines. [4] c) Explain round robin scheduling with interrupts with suitable pseudo code. [8] SECTION - II Q7) a) What is the difference between semaphore and mutex? [4] b) With suitable example explain deadlock during multitasking. [4] c) Explain the use of mailbox, message ques, pipes, and event registers.[10] OR Q8) a) How interrupt requests are served in RTOS environment. [10] b) Explain the use of semaphores to solve the problem of shared data. [8] Q9) a) Explain the waterfall model of development of embedded system? [10] b) List important features of VxWorks. [6] OR Q10)a) Explain the requirement engineering phase of embedded system development. [8] b) Explain the semaphore related functions of MUCOS. [4] c) Explain the timer related functions of VxWorks. [4] Q11)a) b) [3764]-245 With the help of flowchart explain the functioning of digital camera.[10] Explain the basic features of smart card. 2 [6] OR Q12)a) Explain the functioning of RFID system with suitable block diagram. What are the frequency bands used in RFID systems? [10] b) Explain an embedded system for an adaptive cruise control system in a car. [6] Y [3764]-245 3

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