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2003 Course Embedded Systems Design

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Total No. of Questions : 12] P1474 [Total No. of Pages :3 [3764] - 225 B.E. (E & TC) EMBEDDED SYSTEMS DESIGN Time : 3 Hours] [Max. Marks:100 Instructions to the candidates: 1) Answers to the two sections should be written in separate books. 2) Neat diagrams must be drawn wherever necessary. 3) Figures to the right indicate full marks. 4) 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. iii) CAN. iv) GPRS. [6] [12] OR Q2) a) b) Q3) a) b) Compare the following in complete details. i) CAN with MODBUS. ii) IEEE 802.11 with IEEE 802.16. [10] Explain the protocol architecture of bluetooth & all details of physical layer. [8] Explain the processor selection criteria for i) Portable camera. ii) Fingerprint access control. [10] Explain the concept of context switch. List and explain the different states of a task. Also draw a task state diagram. [6] OR P.T.O. Q4) a) What is the memory selection criteria in embedded system and explain in detail any one case study of your memory selection. [8] b) Explain in detail software and hardware architecture for interfacing keyboard, 6 digit seven segment LED display & RS 485 port in an embedded system. [8] Q5) a) Explain following software tools in designing of an embedded system. i) Assembler. ii) Loader. iii) Compiler. iv) Linker. [6] b) Write a device driver for 8 6 keyboard & 16 2 LCD character display for COS. Define your APIS for the device driver & implement C code for each of them. [10] OR Q6) a) Explain in detail interprocess communication and synchronisation. Where it is used. [8] b) What is foreground task and background task. Explain with example.[8] SECTION - II Q7) a) b) Explain in detail what is pipe, message, events and compare them. [10] Write a C code for implementing events for RTOS. [8] OR Q8) a) Write a C code for implementing a scheduler for RTOS. [8] b) List and explain services provided by RTOS and what are the minimum services RTOS must provide. [6] c) Explain the boot sequence in embedded system. [4] What is operating system selection criteria for embedded system. Compare in detail i) Vx works with Nucleus. ii) RT Linux with QNX. [6] Q9) a) b) c) [6] Explain stages in software development life cycle with the help of waterfall model. [4] [3764]-225 2 OR Q10)a) What is operating system selection criteria for mobile computing. [6] b) Compare the following mobile computing OS : i) Windows Mobile. ii) Palmos. iii) Iphone OSX. iv) Symbian. [6] c) Explain stages in software development life cycle with the help of waterfall model. [4] Q11)Draw hardware block diagram for implementing QVGA graphics LCD display & write C code for it assuming COS. [16] OR Q12)Implement MOD Bus protocol for RS 485 using COS for embedded system. [16] kbkb [3764]-225 3

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