Exam Details
| Subject | embedded c | |
| Paper | ||
| Exam / Course | m.tech | |
| Department | ||
| Organization | Institute Of Aeronautical Engineering | |
| Position | ||
| Exam Date | July, 2017 | |
| City, State | telangana, hyderabad |
Question Paper
Hall Ticket No Question Paper Code: BES001
INSTITUTE OF AERONAUTICAL ENGINEERING
(Autonomous)
M.Tech I Semester End Examinations (Supplementary) July, 2017
Regulation: IARE-R16
EMBEDDED C
(Common for Computer Science and Engineering Embedded Systems)
Time: 3 Hours Max Marks: 70
Answer ONE Question from each Unit
All Questions Carry Equal Marks
All parts of the question must be answered in one place only
UNIT I
1. Mention typical real time examples of embedded applications? Which operating system is used
for embedded system and why?
Explain the process of developing embedded software with example? Develop an embedded C
program for simple super loop?
2. Design and discuss the external interface of the standard 8051 microcontroller with a neat sketch?
Why crystal frequency of 8051 is 11.0592MHz?
Define interrupt? Elaborate the process of interrupt handling in an embedded system with
schematic representation?
UNIT II
3. Describe various techniques for reading from port pins? Develop an embedded C program for
super loop application which copies the value from Port1 to Port2?
Illustrate the need for pull-up resistor with a schematic representation? Develop an embedded C
program for reading and writing bits (simple version).
4. List out bitwise operators of Develop an embedded C program for reading and writing bits
by using generic version method.
Explain the concept of switch bounce with example and develop an embedded C program for
reading switch inputs?
UNIT III
5. Develop an embedded C program for
i. Project header (main.h)
ii. port header (port.h) using 8051 microcontroller?
Illustrate the process of goat-counting using switching concept? Develop an embedded C program
for restructuring the gate counting?
6. Discuss about file based C class? Develop an embedded C program for file based C class using
8051 microcontroller?
Develop an embedded C program for restructuring the "Hello World" using 8051 microcontroller?
Page 1 of 2
UNIT IV
7. Elaborate how to create hardware delays using Timer 0 and Timer Develop an embedded C
program for testing a hardware timeout?
Discuss the special function registers TMOD and TCON? Explain each bit in detail? Generate
a 50ms hardware delay for 12MHz using 8051 microcontroller.
8. Elaborate the process of creating a portable hardware delay? Discuss its applications? Develop
an embedded C program for creating hardware timeouts?
Explain the need for timeout mechanism? Develop an embedded C program for a more reliable
switch interface?
UNIT V
9. Design an intruder alarm system using a small art gallery? Mention different operating states of
control panel for alarm system?
Describe in detail the key software components used in intruder alarm system? Discuss its usages
in intruder alarm system?
10. Explain the working principle of main control panel for alarm system with neat sketch? Develop
an embedded C program for project header and port header file of an intruder alarm system
using 8051?
Develop an embedded C program for an intruder alarm system using 8051 microcontroller?
INSTITUTE OF AERONAUTICAL ENGINEERING
(Autonomous)
M.Tech I Semester End Examinations (Supplementary) July, 2017
Regulation: IARE-R16
EMBEDDED C
(Common for Computer Science and Engineering Embedded Systems)
Time: 3 Hours Max Marks: 70
Answer ONE Question from each Unit
All Questions Carry Equal Marks
All parts of the question must be answered in one place only
UNIT I
1. Mention typical real time examples of embedded applications? Which operating system is used
for embedded system and why?
Explain the process of developing embedded software with example? Develop an embedded C
program for simple super loop?
2. Design and discuss the external interface of the standard 8051 microcontroller with a neat sketch?
Why crystal frequency of 8051 is 11.0592MHz?
Define interrupt? Elaborate the process of interrupt handling in an embedded system with
schematic representation?
UNIT II
3. Describe various techniques for reading from port pins? Develop an embedded C program for
super loop application which copies the value from Port1 to Port2?
Illustrate the need for pull-up resistor with a schematic representation? Develop an embedded C
program for reading and writing bits (simple version).
4. List out bitwise operators of Develop an embedded C program for reading and writing bits
by using generic version method.
Explain the concept of switch bounce with example and develop an embedded C program for
reading switch inputs?
UNIT III
5. Develop an embedded C program for
i. Project header (main.h)
ii. port header (port.h) using 8051 microcontroller?
Illustrate the process of goat-counting using switching concept? Develop an embedded C program
for restructuring the gate counting?
6. Discuss about file based C class? Develop an embedded C program for file based C class using
8051 microcontroller?
Develop an embedded C program for restructuring the "Hello World" using 8051 microcontroller?
Page 1 of 2
UNIT IV
7. Elaborate how to create hardware delays using Timer 0 and Timer Develop an embedded C
program for testing a hardware timeout?
Discuss the special function registers TMOD and TCON? Explain each bit in detail? Generate
a 50ms hardware delay for 12MHz using 8051 microcontroller.
8. Elaborate the process of creating a portable hardware delay? Discuss its applications? Develop
an embedded C program for creating hardware timeouts?
Explain the need for timeout mechanism? Develop an embedded C program for a more reliable
switch interface?
UNIT V
9. Design an intruder alarm system using a small art gallery? Mention different operating states of
control panel for alarm system?
Describe in detail the key software components used in intruder alarm system? Discuss its usages
in intruder alarm system?
10. Explain the working principle of main control panel for alarm system with neat sketch? Develop
an embedded C program for project header and port header file of an intruder alarm system
using 8051?
Develop an embedded C program for an intruder alarm system using 8051 microcontroller?
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