Download GTU BE/B.Tech 2019 Summer 7th Sem New 2171005 Embedded Systems Question Paper

Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2019 Summer 7th Sem New 2171005 Embedded Systems Previous Question Paper

1
Seat No.: ________ Enrolment No.___________

GUJARAT TECHNOLOGICAL UNIVERSITY

BE - SEMESTER ?VII(NEW) EXAMINATION ? SUMMER 2019
Subject Code:2171005 Date:14/05/2019

Subject Name:Embedded Systems

Time:02:30 PM TO 05:00 PM Total Marks: 70

Instructions:

1. Attempt all questions.

2. Make suitable assumptions wherever necessary.

3. Figures to the right indicate full marks.

Q.1 (a) Enlist the criteria for choosing CPU for any embedded application. 03
(b) What is RTOS ? Describe types of RTOS with two examples. 04
(c) Describe I2C and CAN bus protocol. 07

Q.2 (a) Describe advantage and disadvantage of serial and parallel communication
protocol.
03
(b) Describe Watchdog timer and RTC needed for embedded application. 04
(c) Describe Wi-Fi and Zigbee protocols. Discuss the application areas for both
the protocols.
07
OR
(c) Explain classification of embedded system with examples. 07

Q.3 (a) Describe concept of interrupt service thread. 03
(b) Describe interrupt latency and deadline with example. 04
(c) Describe dead-lock condition. Write pseudo code for deadlock utilizing
mutex M1 and M2 shared between two processes P1 and P2.
07
OR
Q.3 (a) Describe why atomic operation is needed in some of coding part of 03
(b) Describe priority inversion with example. How to deal with such condition. 04
(c) Describe counting and binary semaphore as a resource key. 07

Q.4 (a) Differentiate : Function and ISR 03
(b) Describe co-operative and pre-emptive scheduling. 04
(c) Why Inter Process Communication is needed in multi-process system ?
Describe mailbox, lock and spin-lock methods for IPC.
07
OR
Q.4 (a) What is Process Control Block? What are the fields included in PCB ? 03
(b) Describe task/services to be performed by OS. 04
(c) Describe memory and file management in RTOS. 07

Q.5 (a) Describe low power modes of MSP430. 03
(b) Describe MSP430 GPIO registers associated with I/O port. 04
(c) Describe MSP430 USCI module with different registers and operation. 07
OR
Q.5 (a) Describe POR, PUC and BOR for MSP430. 03
(b) Describe clocking system of MSP430. 04
(c) Sketch interfacing diagram to interface common anode seven-segment
display with Port 1 and 8 push button switches with Port 2 with MSP430.
When SW1(P2.0) pressed and it should display ?1?. Write C language
program to display pressed switch number on seven segment display.
07
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