Download GTU B.Tech 2020 Summer 5th Sem 2150306 Microcontroller And Interfacing (Biomedical) Question Paper

Download GTU (Gujarat Technological University Ahmedabad) B.Tech/BE (Bachelor of Technology/ Bachelor of Engineering) 2020 Summer 5th Sem 2150306 Microcontroller And Interfacing (Biomedical) Previous Question Paper

Seat No.: ________
Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER? V EXAMINATION ? SUMMER 2020
Subject Code: 2150306 Date:28/10/2020
Subject Name: MICROCONTROLLER & INTERFACING (BIOMEDICAL)
Time: 02:30 PM TO 05:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.

2. Make suitable assumptions wherever necessary.

3. Figures to the right indicate full marks.


MARKS
Q.1 (a) Give difference between microprocessor and microcontroller.
03

(b) Explain RAM organization.
04

(c) Write a short note on various types of Memory.
07


Q.2 (a) Draw and explain oscillator circuit and timing diagram of the 8051.
03

(b) Draw control logic diagram of Timer 0 programming.
04

(c) Explain PORT2 with necessary diagram.
07


OR


(c) Draw and explain the architecture of 8051 microcontroller
07
Q.3 (a) What is SFR? Which are bit addressable SFR?
03

(b) Explain Branching instructions.
04

(c) Explain serial communication in microcontroller.
07


OR

Q.3 (a) Write a C Program to convert BCD number to ASCII.
03

(b) Explain in detail IE, TCON and TMOD special function registers.
04

(c) Describe interrupt interfacing in detail.
07
Q.4 (a) What is the function of counter? What are the steps for implementing it in 8051
03
microcontroller?

(b) Write an Assembly Program to read the data from P2 and store them to memory
04
location 20H.

(c) Write an 8051 C program to transfer the message `MCI' serially at 9600 baud.
07

OR

Q.4 (a) Explain different loops used in C Programming.
03

(b) Draw interfacing diagram of stepper motor with 8051.
04

(c) Write a program
to toggle pin P3.4 every 1 msec continuously using interrupt
07
service routine.
Q.5 (a) Draw circuit to interface external 4K RAM memory with 8051.
03

(b) Explain 16-bit registers of 8051 microcontroller.
04

(c) Explain interfacing of ADC0808 with AT89C51 with necessary program.
07


OR
Q.5 (a) List the factors to be considered for selection of microcontroller.
03
(b) Write an ALP (Assembly language program) to generate continuous square wave
04
of 50% duty cycle using auto-reload mode.
(c) Design 8051 connection to LCD. Write a C program to display your name on
07
LCD.

*************
1

---