Download VTU BE 2020 Jan CSE Question Paper 15 Scheme 5th Sem 15CS563 Embedded Systems

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Time: 3 hrs. Max. Marks: 80
Note: Answer any FIVE full questions, choosing ONE full question from each module.
Module-I
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1 a. Write the difference between microprocessor and micro controller. (06 Marks)
b. Briefly explain the challenges faced by engineers in Embedded System Designing.
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2 a. How do the classify embedded system and explain the skills required for an embedded
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-c system designer. (08 Marks)
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b. With neat diagram, explain the systematic process of Automatic chocolate vending machine.

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Module-2
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3 a. Explain the various modes of serial communication using serial devices with one example
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b. Explain the following : i) I

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C Bus ii) CAN Bus iii) USB Bus (08 Marks)
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O b. Describe and compare UART, RS232C, SDIO device. (08 Marks)
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5 a. Explain software interrupts and interrupt service Routine with example. (08 Marks)
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b. What is DMA? Explain DMA controller with help of block diagram and write their uses.

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6 a.
Explain with example the working of Busy ? Wait approach without interrupt service

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mechanism.
(08 Marks)
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b. Explain with neat diagram how parallel and serial port devices are used in system. (08 Marks)
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* 7 a. Define Task. Explain with an example the five state of task. (08 Marks)

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0 b. Write short notes on : i) Message Queue function ii) Pipe function. (08 Marks)
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E ;-- 8 a. Write the use of multiple semaphores for synchronizing the task. (06 Marks)
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b. Explain socket function and write their application. (06 Marks)
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Module-5
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9 a. Explain: i) Timer function ii) Event function.
(08 Marks)

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f and b. Explain the software tools an modules for implementing an embedded system. (08 Marks)
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10 a. With neat diagram, explain the Petri net model for the critical sec

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b. What are the security issues in OS and list the protection mechkKm for Cig:-;/
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4 a. Write notes on : i) HTTP ii) TCP iii) Ethernet. (08 Marks)
c. When are RPC's used? List 2 examples. (04 Marks)
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