Download GTU BE/B.Tech 2019 Summer 7th Sem New 2171711 Embedded System Design Question Paper

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GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER-VII(NEW) EXAMINATION — SUMMER 2019

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Subject Code:2171711 Date:18/05/2019
Subject Name:Embedded System Design
Time:02:30 PM TO 05:00 PM Total Marks: 70

Instructions:

1. Attempt all questions.

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2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.

Q.1 (a) Explain differences between embedded systems and general purpose computing systems [04]
(b) Explain difference between CISC and RICS architecture. [03]
(c) Explain block diagram of embedded system in detail with neat diagram [07]

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Q.2 (a) Compare process, task and thread. [04]
(b) Explain function of CPSR register of ARM processor. [03]
(c) Explain in detail the ARM programmers model in detail with neat sketch [07]

OR

(c) Explain pipeline concept of ARM processor. [07]

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Q.3 (a) Explain difference between ADDS and ADD instructions in ARM Assembly language. [04]
(b) Explain LDMIA instruction in detail with all possible operands. [03]
(c) Write a program to find average of 10 numbers stored in an array. Consider data size of 32 bits [07]

OR

Q.3 (a) Enlist all the control flow instructions of ARM assembly language. [04]

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(b) Explain all the multiplication instructions of ARM assembly language in detail. [03]
(c) Write a program in ARM assembly language to find largest number from an array. Assume the array length and starting address suitably. [07]

Q.4 (a) What is meant by RTOS. How they differ from other operating systems. [04]
(b) Explain instructions: STMIB and BICS [03]
(c) Write a program in embedded C to blink LEDs connected to alternate bit of port0 i.e. P0.0, P0.2, P0.4 and so on up to P0.30 of ARM GPIO. [07]

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OR

Q.4 (a) Enlist various serial communication protocols. [04]
(b) Explain Watchdog Timer in brief. [03]
(c) Write a program in ARM embedded C to blink LED connected to Port pin P0.10 with 75 % duty cycle and 10 ms OFF time period. [07]

Q.5 (a) State advantages and disadvantages of I²C protocol [04]

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(b) Explain how PWM works for DC loads [03]
(c) Explain memory management in RTOS in detail. [07]

OR

Q.5 (a) Write short note on “Harvard Architecture” [04]
(b) Write a brief note on exception handling in ARM processor. [03]

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(c) Explain USB protocol in detail. [07]