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GTU Electronics and Communication Engineering (Semester 5)
Microcontroller And Interfacing
December 2015
Microcontroller And Interfacing
December 2015
Solve the followings(Four Marks each)
1(a)i
Explain AVR status register in detail.
4 M
1(b)ii
Compare Microprocessor with Microcontroller.
3 M
2(a)
Explain following terms related to AVR:
i) Harvard Architecture
ii) RISC
iii) DDR
iv) I2C
i) Harvard Architecture
ii) RISC
iii) DDR
iv) I2C
7 M
Solved any one question from Q.2(b) & Q.2(c)
2(b)
Explain following instructions with example:
i) CP
ii) POP
iii) LDS
iv) SBRS
v) SWAP
vi)CBI
vii)ASR
i) CP
ii) POP
iii) LDS
iv) SBRS
v) SWAP
vi)CBI
vii)ASR
7 M
2(c)
Explain Addressing modes of AVR with example.
7 M
Solved any one question from Q.3 & Q.4
3(a)
Explain RTC interfacing and Programming
7 M
3(b)
Explain SPI bus Protocol in detail.
7 M
4(a)
List the features of ADC peripheral of the Atmega32.
7 M
5(a)
A switch is connected to pin PB0 and an LED to pin PB7.Write a program (in Assembly or C) to get the status of Switch and send it to LED.
7 M
Solved any one question from Q.5 & Q.6
5(b)
Write a program (in Assembly or C) to copy a block of 5 bytes of data from data memory location starting at $130 to RAM location starting at $60.
7 M
6(a)
Explain Programming steps to transfer and receive data serially from AVR.
7 M
6(b)
Write an assembly language program that finds the number of 1s in a given byte.
7 M
7(a)
Write a program to generate a delay of 1920μ s. (consider XTAL= 8 MHz, Timer 2) .
7 M
7(b)
Explain interfacing of LCD with AVR using sample program.
7 M
8(a)
Write a program (in
Assembly or C) that
toggles pin PORTB.5 every 40 μ s, while
(a) at the same time transferring data from PORTC to PORTD. Assume XTAL = 1Mhz and use Timer0 with Interrupt.
7 M
8(b)
Explain the connection of Stepper motor with AVR. And write a program to
rotate it continuously.
7 M
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