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2003 Course Embedded Systems Design

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Total No. of Questions :12] P1075 [Total No. of Pages : 2 [3864]-265 B.E. (E&TC) EMBEDDED SYSTEMS DESIGN (2003 Course) Time : 3 Hours] [Max. Marks : 100 Instructions to the candidates: 1) 2) 3) 4) 5) 6) Answer three questions from section I and three questions from sectionII. Answers to the two sections should be written in separate books. Neat diagrams must be drawn wherever necessary. Figures to the right indicate full marks. Use of logarithmic tables, slide rule, Mollier charts, electronic pocket calculator and steam tables is allowed. Assume suitable data, if necessary. SECTION - I Q1) a) What is Real time systems? Explain challenges of implementing Real time systems on general purpose system. [8] b) Explain in detail how connection is established using Bluetooth protocol. Provide complete details of pico NET and scatter NET. [10] OR Q2) a) What are the different functions of SDP and L2 CAP. [8] b) Explain the tranceiver section of IrDA in complete details with functionality. Explain in detail OBEX protocol using IrDA. [10] Q3) a) What are the different criteria used while selecting memory for embedded [8] system. b) What are the special functions required in processors for digital camera system with still photography and streaming video. [8] OR Q4) a) b) Explain with example how shared data problem occurs when interrupt arrives. What are different ways to avoid it. [8] List the differences between the process, task and thread. [8] [P.T.O. Q5) a) b) Q6) a) b) Give the features and functionality of UART device driver for C/OS II. [8] Explain states of task. Explain in detail the transitions from one state to another in a task. [8] OR What is scheduling. Explain the various scheduling algorithms. Explain the different tools used for developing software. [8] [8] SECTION - II Q7) a) Explain in detail different types of semaphore and usage of each type in different operations by giving examples. [8] b) Write C code for implementing Message mailbox in RTOS. How does a mailbox message differs from a queue message. [10] OR Q8) a) b) Q9) a) b) Write C code for implementing pipes in RTOS. [10] Is RTOS a must for all embedded system applications? Justify your answer. [8] Explain in detail the following functions of RT Linux os. i) IPC function. ii) Mutex Management function. Explain in detail the interprocess communication in QNX. OR [8] [8] Q10) a) Compare QNX with NUCLEUS. What are the applications of NUCLEUS. [8] b) What are the different phases and models of software development [8] cycle. Q11) Explain the design and implementation of car cruise control system with block diagram and C code. [16] OR Q12) Explain the design and implementation of RFID based system for asset tracking with block diagram and C code. [16] nnn [3864]-265 -2-

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