Download GTU B.Tech 2020 Winter 7th Sem 2171005 Embedded Systems Question Paper

Download GTU (Gujarat Technological University Ahmedabad) B.Tech/BE (Bachelor of Technology/ Bachelor of Engineering) 2020 Winter 7th Sem 2171005 Embedded Systems Previous Question Paper

Seat No.: ________
Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE- SEMESTER?VII (NEW) EXAMINATION ? WINTER 2020
Subject Code:2171005 Date:21/01/2021
Subject Name:Embedded Systems
Time:10:30 AM TO 12:30 PM Total Marks: 56
Instructions:
1. Attempt any FOUR questions out of EIGHT questions.

2. Make suitable assumptions wherever necessary.

3. Figures to the right indicate full marks.


MARKS
Q.1 (a) Write down the skills required for an Embedded System Designer.
03

(b) Describe the features associated with AHB and ASB Buses.
04

(c) Describe an embedded processor as (i) GPP (ii) ASIP (iii) Single purpose
07
processor.


Q.2 (a) Enlist IO port types with the help of example.
03

(b) Explain the concept of Multithreading in Real Time Operating System.
04

(c) Explain the requirements of Software Interrupts (SWI) in Embedded
07
System.




Q.3 (a) What is Semaphore? Explain where Semaphore can be utilized?
03

(b) What is the significance of Mailbox in RTOS?
04

(c) Discuss shared data problems and give solutions to such problems.
07




Q.4 (a) Explain difference between level-triggered and edge-triggered interrupts.
03

(b) Describe the features associated with Bluetooth and Zigbee protocols used
04
in wireless and mobile systems.

(c) Write down methods of saving and optimizing the memory space.
07



Q.5 (a) Explain the differences between Hard Real time and Soft Real time system.
03

(b) Describe the requirement of Direct Memory Access (DMA) based data
04
transfer in Device driver programming.

(c) Write down the functions of Device manager.
07



Q.6 (a) Describe Cyclic Scheduling model with an application.
03

(b) Define following:
04
1. Deadline 2. Runtime 3. Task Precedence 4. Worst case execution time

(c) Explain any two alternative systems in RTOS for responding to a hardware
07
source calls on the interrupts.



Q.7 (a) Explain the function of Watchdog timer in MSP430 processor.
03

(b) Describe the four sources of clock in MSP430 processor.
04

(c) Explain the use of timer for generating Pulse Width Modulated waveform
07
using MSP430.



Q.8 (a) Explain the special features associated with GPIO port pins in MSP430
03
other than simple digital input output port pin characteristics.
(b) Write a program to turn on and off an LED connected to GPIO port pin
04
P1.0 with 1ms delay.
(c) Explain interrupt handling process in MSP430.
07
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