Embedded Systems important questions
Subject:- ESY-22532 Chapter Wise Question as per MSBTE
previous papers
Topic 1: Introduction To The Embedded System
•
Winter 19
Q1. a)List
out four types of embedded systems.
b) State
four advantages of embedded system.
Q2. a)
Compare features of PIC and AVR microcontrollers (any four)
b) Explain the need to consider
following factors in design matrix of embedded system: (i) Processor (iii)
Power (ii) Memory (iv) Non - recurring engineering cost.
Q6. a) Compare : (i) RISC with CISC processor
(ii) Harward with Von Neuman architecture
•
Summer
22
Q1. a)
Classify embedded system.
b) Define
RISC and CISC.
c) Draw
the format of TMOD register.
Q2. a)
Compare Harvard and Von-Neumann architecture
b) State
features of 89C51 microcontroller
Q6. a) Draw the block diagram of embedded system
and explain with hardware component.
•
Winter
22
Q1. a)
List any four application’s of Embedded system.
b) State
any two characteristics of embedded systems
c) Sketch
and label the block diagram of embedded system.
Q2. a) Compare RISC
and CISC processor’s
b) Compare
features of PIC and ARM microcontrollers (four points).
Topic 2: Programming using Embedded
C
•
Winter
19
Q1. a) Illustrate
any two logical operators used in C with their examples.
b) Develop
a ‘C’ program to transfer the data from port P0 to port Pl.
Q2. a) Write a C language program to operate port
0 and port 2 as output port and port 1 and port 3 as input port.
Q3. a) Write a ‘C’ language program to mask the
upper four bits of the data given in port 0 and write the answer in port 1.
Q4. a) Write ‘C’ program to generate delay of
50msec for microcontroller 89C51 with crystal frequency of 11.0592 MHz
Q5. a)Write a ‘C’ language program for 89C51 to
generate triangular waveform.
b) Write a ‘C’ language program for
serial communication to transfer letter ‘M’ serially at 9600 baud continuously.
•
Summer
22
Q1. a)
State any two data types used in C with their range.
Q2. a) Write 89C51 C program to mask the lower 4
bits of P2 and upper 4 bits of P0. using logical operator.
Q3. a)
Write 89C51 C program for multiplication of two 8 bit numbers.
Q4. a) Write C program to send character ‘ESY’
serially at 9600 baud rate continuously. Assume crystal frequency 11.0592 MHz
Q5. a) Write a C program to toggle all bits of
port 1 continuously with 60 ms delay in between. Use timer 0 in mode 1 to
generate the delay. The XTAL frequency is 11.0592 MHz
•
Winter
22
Q1. a)
List any four software development tools used in an embedded system
Q2. a) Write 89C51 C program to toggle all the
bit’s of P0, P1 and P2 continuously with a zooms delay using the sfr keyword to
declare the port address.
Q3. a) If the content of ACC = 0 × 04 and P1 = 0
× F3. State the result after execution of the following statement independently.
i) Result
= ACC and P1
ii) Result
= ACC | P1
iii)
Result = ACC l P1
iv) Result
= ∼ P1
Q4. a) Write a 89C51 C program to generate
continuous square wave of 2 KHz on P1.5 using mode 1 of timer 0. The XTAL
frequency is 11.0592 MHz.
b) Compare assembly language and
embedded C program with respect to :–
i)
Execution time
ii) Time
for coding
iii) Hex
file size
iv)
Debugging
Q5. a)Write a 89C51 C program to transfer the
message “Exam” serially at baud rate 4800, 8 bit data, 1 stop bit.
Topic 3: Communication standards
and protocols
·
Winter
19
Q1. a)
State the use of MAX 232 in communication
Q2. a) Compare synchronous and asynchronous
communication. (any four points)
Q3. a) Explain the process of handshaking in
RS232 standard based communication.
Q4. a)
List out eight features of USB.
b) Explain
‘CAN’ bus protocol and list out it’s two applications.
•
Summer
22
Q1. a)
State any two features of IrDA
Q2. a)
Draw and explain CAN bus with frame format.
Q3. a) Draw the pin out of RS 232 and describe
function of TXD, RXD, DTE and DCE pins.
Q4. a)
State any four features of zigbee.
b) Draw
and explain USB protocol.
•
Winter
22
Q1. a)
State any four application’s of bluetooth.
Q2. a)
Compare between CAN and I2C protocols on following points:
i) Data
transfer rate
ii) Number
of fields
iii)
Ad.dressing bit.
iv)
Application
Q3. a) Sketch and label the pinout of RS232 and
describe the function of DCE and DTE pins.
Q4. a)
State any four features of Bluetooth Technology
Q5. a) Draw CAN message format and explain it.
State any two application’s of CAN BUS.
Topic 4: Interfacing Input and Output devices
•
Winter
19
Q1. a)
Sketch pin-out diagram of LM35 and label it’s pin.
Q3. a) Sketch circuit diagram showing interfacing
of one 7 -segment display to 89C51. Write a ‘C’ program to display ‘F’ and ‘Fi’
alternately
Q4. a) Draw the interfacing diagram of ADC with
89C51 and state the function of SOC, EOC and OE pins.
b) Sketch
interfacing diagram to interface LCD display with 89C51.
Q6. a) Explain with sketch interfacing of stepper
motor with 89C51. Write ‘C’ language program to rotate the motor clockwise
•
Summer
22
Q1. a)
List various temperature sensors used in industry.
Q3. a) Draw labelled diagram to interface 16 × 2
LCD with 89C51. State function of pins
i) RS
ii) RIW
iii) EN
Q5. a) Draw the interfacing diagram for
temperature measurement using LM35, ADC 0808 with microcontroller 89C51.
Q6. a) Draw interfacing diagram of DAC to 89C51
and write a ‘C’ language program to generate sawtooth wave
•
Winter
22
Q1. a)
State the functions of following pins of LCD.
i) RS
ii) R/W
Q2. a) Write 89C51 C program to rotate stepper
motor by 90° Degree clockwise. Assume step angle is 1.8° degree and four step
sequence.
Q4. a) Draw an interfacing diagram of DAC to
89C51 and write a C language program to generate square wave using DAC.
Q5. a) Write a 89C51 C program to
display “WELCOME” on 16 × 2 LCD
display.
Q6. a) Write a 89C51 C program for 4
× 4 keyboard matrix.
b) Draw the interfacing diagram of
seven segment LED display to 89C51 and write a 89C51 C program to display 0.9
continuously
Topic 5: Real Time Operating Systems
•
Winter
19
Q1. A)
State two examples of RTOS.
Q3. A)
Explain the term ‘Deadlock’. State reason of occurance
Q5. a)
Explain resource allocation and interrupt handling function of RTOS
Q6. a)
Explain resource allocation and interrupt handling function of RTOS
•
Summer
22
Q1. a)
Define Reliability, Scalability related to RTOS
Q3. a) Differentiate between general purpose
operating system (GPOS) and real time operating system (RTOS).
Q5. a)
Explain watchdog timer and semaphore in detail
Q6. a)
Explain pre-emptive and round robin scheduling algorithm in RTOS
•
Winter
22
Q1. a)
List any four function’s of RTOS.
Q3. a)
Explain the concept of Deadlock with suitable schematic.
d) Compare
general purpose operating system and RTOS (four points).
Q6. a) List any four characteristics of RTOS and
explain the following functions of RTOS in brief : i) Scalability ii) Task
management
