20 very most important questions for GTU Microcontroller and Interfacing (MCI) Exam

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20 very most important questions for GTU Microcontroller and Interfacing (MCI) Exam

Below are 20 very most important questions for GTU Microcontroller and
Interfacing (MCI) Exam. We recommend you to prepare these first and then
go for other topics.

1.How Embedded Microcontrollers are differing than Embedding Microprocessor?

2. Explatn RISC and CISC ? Which is most suited to Intel 51 Microcontroller? Why?

3. What is Special Function register (SFR) of 51-Microcontroller? List all the SFR and explain SBUF, IP,TMOD,TCON and PCON.

4.Describe and Draw Architecture of intel-51, 8-bit Microcontroller

5. What is flag register? Explain 8051 Flag register and its practical implementation

6.Define and describe the directives of 51 Microcontroller.

7. What are the interrupts available in the 8051 microcontroller? Explain interrupt enable (IE) SFR and Interrupt priority (IP) SFR.

8. Draw and explain RESET and clock circuit of 8051 microcontroller.
What is the purpose of capacitor in RESET circuit?

9. Explain interfacing of analog to digital converter (ADC) with microcontroller. Write program to read analog value from ADC on port P1 and display digital values on LEDs connected at port P0

10.Draw and explain interfacing of 4x4 matrix keyboard with 8051 microcontroller. Write program to read switch.

11.Explain interfacing of stepper motor with microcontroller. Write program to rotate stepper motor in clockwise direction continuously in full step mode.

12.Discuss interfacing of the LCD with 8051 microcontroller. Draw interfacing diagram. Write program to display message "GTU IS BEST" on the LCD screen

13. Draw interfacing diagram for interfacing of common anode seven segment displays with 8051 microcontroller. Write program to display digit 0 to 9 at the interval of approximately 1 second (Consider crystal frequency 12 MHz)

14.Discuss RTC interfacing with microcontroller. Write program to get values of hour, minute and second from RTC to RAM location 20h,21h and 22h respectively.

15.Explain control circuitry between the output latch and port 0, port 1, port 3 and port 4.

16.Explain Serial data transmission modes in detail.

17. Explain following with respect to 8051 microcontroller interrupt.
1. List the sequence of events that take place when an interrupt
occurs.
2. Priority level of various interrupts with their vector addresses.
3. Explain with an example how their priority altered.

18. Explain Addressing modes of 8051

19. memory interfacing

20. program to generate square wave.

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