Download AKTU B-Tech 6th Sem 2017-2018 NEC 022R Microcontrollers For Embedded Systems Question Paper

Download AKTU (Dr. A.P.J. Abdul Kalam Technical University (AKTU), formerly Uttar Pradesh Technical University (UPTU) B-Tech 6th Semester (Sixth Semester) 2017-2018 NEC 022R Microcontrollers For Embedded Systems Question Paper

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B TECH
(SEM VI) THEORY EXAMINATION 2017-18
MICROCONTROLLERS FOR EMBEDDED SYSTEMS
T ime: 3 Hours T 0tal Marks: 100
Note: 1. Attempt all Sections. If require any missing data; then choose suitably.
1.
SECTION A
Attempt all questions in brief. 2 x 10 = 20
a) Differentiate between microcontrollers and microprocessor based systems.
b) Describe embedded systems. How they are related to microcontroller based systems?
0) Explain GPIO control of MSP430 microcontrollers.
(1) Describe the register set of MSP430.
e) What is the size of the program counter register? What does the program counter d0?
f) Define a PWM and its significance.
g) Brie?y describe UART.
h) Where is R8232 protocol used?
i) What are the various network topologies in Bluetooth?
j) Mention some applications of IOT.
SECTION B
Attempt any three of the following: 10 x 3 = 30
a) List some important features and architecture considerations of an embedded system.
b) Why do we use pull?up/pull?down registers only at input section? How we can enable
them inMSP430F5529?
c) Differentiate between memory mapped and 10 mapped peripherals? How many Low
power modes are available inMSP430F5529?
d) What is the difference between Asynchronous and Synchronous communication?
What are the different serial interfaces?
e) Explain the various elements of a Zigbee wireless network. Describe the applications
of Zigbee wireless network.
SECTION C
Attempt any one part of the following: 10 x 1 = 10
(a) Write some features of the 8051 microcontroller. Draw and explain the block
diagram of 8051 microcontroller.
(b) Timer-O of 8051 microcontroller is to be programmed in mode?l for creating a
square wave of duty cycle 50% on the port Pl.5. Write an algorithm for
programming the counter.
Attempt any one part of the following: 10 x 1 = 10
(a) How many interrupts are available in MSP430F5529? What is the procedure behind
the servicing of interrupt?
(b) What are the various addressing modes of MSP430 microcontroller? Explain with
suitable example.

5.
Attempt any one part of the following: 10 x 1 = 10
(a) What is use of watchdog timer in microcontroller? How can we enable watchdog
timer in MSP43OF5529?
(b) How many clock sources are present in MSP430F5529? Explain Digitally Controlled
Oscillator clock.
Attempt any one part of the following: 10 x 1 = 10
(a) What is 12C protocol? What is the maximum number of slaves that can be connected
to a single master of 12C bus?
(b) What is the SP1 protocol? What can be the maximum achievable speed in
MSP430F5529?
Attempt any one part of the following: 10 x 1 = 10
(a) What are WSN (Wireless Sensor Networks)? Name the different wireless
technologies. What is the relation between WSN and IOT?
(b) What do you understand by Internet of Things (IOT)? Describe the architecture of
IOT. Describe the main components of IOT.