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2003 Course Embedded System Design

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Total No. of Questions : 12] P987 [Total No. of Pages : 3 [3664]-198 B.E. (E&TC) EMBEDDED SYSTEM DESIGN (2003 Course) Time : 3 Hours] [Max. Marks : 100 Instructions to the candidates:1) Answer three questions from Section - I and three questions from Section - II. 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) b) Explain the design metrics in detail for embedded system. Explain the following communication protocols. i) IrDA. ii) Blue tooth. [10] [8] OR Q2) a) Compare the following in complete details. i) b) Q3) a) CAN with MODBUS. ii) IEEE 802.11 with IEEE 802.16. Explain the protocol architecture of blue tooth & all details of physical layer. [8] Explain the processor selection criteria for : i) [10] Surveillance IP camera. ii) b) [10] Smart card based access control. Explain the concept of context switch. List and explain the different states of a Task. Also draw a task state diagram. [6] P.T.O. Q4) a) b) OR What is the memory selection criteria in embedded system and explain in detail any one case study of your memory selection. What is MMU? [8] Explain in detail software and hardware architecture for interfacing keyboard, graphics LCD and camera in an embedded system. [8] Q5) a) Explain the software tools used in designing of an embedded system. [8] b) Write a device driver for 4 4 keyboard. Define your APIS for the device driver for COS/VX Works. Implement the c code for each of them. [8] OR Q6) a) Explain in detail interprocess communication and synchronisation.[8] b) What is foreground task and background task. Explain with example. [8] SECTION - II Q7) a) b) Explain in detail pipe, message & events and compare them. [10] Write a c code for implementing a message mailbox for RTOS. [8] OR Q8) a) b) c) Write a c code for implementing a scheduler for RTOS. [8] List and explain services provided by RTOS and what are the minimum services RTOS must provide. [6] Explain the boot sequence in embedded system. [4] Q9) a) What is operating system selection criteria for embedded system. [6] b) Compare in detail [6] i) Vx Works with nucleus. ii) RT Linux with QNX. Explain stages in software development cycle with the help of waterfall model. [4] c) [3664]-198 2 OR Q10)a) What is operating system selection criteria for mobile computing. [6] b) Compare four commercial mobile computing OS. [6] c) Explain stages in software development cycle with the help of waterfall model. [4] Q11)Draw hardware block diagram for implementing 4 digit, seven segment LED display and write c code for it assuming COS. [16] OR Q12)Implement MODBUS protocol for Rs 485 using COS for embedded system. [16] vvvv [3664]-198 3

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