Download GTU BE/B.Tech 2019 Winter 5th Sem Old 151001 Microcontroller And Interfacing Question Paper

Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2019 Winter 5th Sem Old 151001 Microcontroller And Interfacing Previous Question Paper

1
Seat No.: ________ Enrolment No.___________

GUJARAT TECHNOLOGICAL UNIVERSITY

BE - SEMESTER ?V (Old) EXAMINATION ? WINTER 2019
Subject Code: 151001 Date: 06/12/2019

Subject Name: Microcontroller And Interfacing
Time: 10:30 AM TO 01:00 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) State different addressing modes in 8051 microcontroller. Explain each with
example.
07
(b) Explain basic architecture of 8051 microcontroller. 07

Q.2 (a) Explain following 8051 instructions with an example.
(1) MUL AB (2) SUBB A,R0 (3) RR A (4) SWAP A (5) ANL C, Bit
(6)XCHD A,R0 (7)RLC A.
07
(b) Write a Program to Generate delay of 20 msec in 8051. 07
OR
(b) Write an assembly language program to transfer a block of 15 data bytes stored
at D000 onwards to E000 onwards.
07

Q.3 (a) Write an assembly language program to generate square wave of 5 KHz Frequency
on pin P1.5 Use Timer 0 in Mode 1.
07
(b) Discuss the hardware scheme to interface external 32K EPROM and 16K RAM
memories with microcontroller.
07
OR
Q.3 (a) Explain 8 bit ADC and Explain interfacing of same with 8051 07
(b) Describe TMOD and TCON Special Function registers. 07

Q.4 (a) Explain RS 232 connector and respective handshaking signals. 07
(b) 16X2 LCD is connected to 8051 microcontroller. Write assembly language
program to display ?Hello World? on LCD.
07
OR
Q.4 (a) Draw and explain interfacing of RTC with 8051 microcontroller. 07
(b) Interface a Matrix Keyboard with 8051 and draw the flow chart to detect a switch
pressing.
07

Q.5 (a) Draw and explain DC motor control with optoisolater and PWM. 07
(b) Write a C-language Program to transfer the message ?Hello? Serially at 9600 baud,
8 bit data, 1 stop bit. Do this continuously. Xtal =11.0592MHz.
07
OR

Q.5 (a) Compare microprocessors with microcontrollers. 07
(b) Draw pin diagram of 8051 microcontroller. 07

*************
FirstRanker.com - FirstRanker's Choice