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2003 Course Embedded System Design

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Total No. of Questions :12] P1071 [Total No. of Pages :2 [3864]-245 B.E. (Electronics) EMBEDDED SYSTEM DESIGN (2003 Course) Time : 3 Hours] [Max. Marks : 100 Instructions to the candidates: 1) Answer any 3 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) Use of logarithmic tables, slide rule, Mollier charts, electronic pocket calculator and steam tables is allowed. 6) Assume suitable data, if necessary. SECTION - I Q1) a) b) Explain the following design metrics of an embedded system i) Time to market ii) Latency iii) Speed up iv) NRE - cost Explain the protocol architecture of IrDA. [10] [8] OR Q2) a) b) Q3) a) b) What is an embedded system ? Explain.How they are classified? Explain the Hardware blocks of an Embedded system. [10] Explain the bluetooth communication protocol. [8] Describe the processor selection criterion for an Embedded system giving suitable examples. [10] What are the characteristics of a shared data bug? [6] OR Q4) a) b) Explain the activities of an embedded operating system. Explain the software architecture of an embedded system. [8] [8] Q5) a) b) Explain the productivity tools for developing software systematically.[8] What is re-entrant function? State the rules to decide whether the function is re- entrant. [8] P.T.O. OR Q6) a) b) Explain the different types of ROM and RAM devices used in embedded systems. [8] What is a task? What are different states of tasks? Draw the task state diagram. [8] SECTION - II Q7) a) b) c) Explain the methods of protection of shared data. Explain the following : i) First-in-First-out. ii) Round-Robin. iii) Round-Robin with priority. Explain the interrupt routines in an RTOS environment. [7] [7] [4] OR Q8) a) b) c) Explain in detail what is a pipe and event in RTOS and where these are used. Give the implementation of any of these in embedded C . [8] What are the different time-delay functions ? Explain. [6] Explain the deadly embrace. [4] Q9) a) b) c) What is RT Linux Module? [4] What is the function calls provided for timer management in RT Linux.[6] How does a mail box differ from a Queue Message in c/os -II. [6] OR Q10)a) b) Explain the following for its use in c/os -II along with the implementations in embedded C. [8] i) Task create ii) Timer iii) Message queue Compare any four commercial mobile computing operating systems.[8] Q11)Explain the embedded system used in Digital Camera. [16] OR Q12)a) b) Explain with a neat diagram of an Adaptive Cruise control system in a car. [8] Explain the basic features of smart card hardware. zzzz [3864]-245 2 [8]

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