STUPIDSID
Answer any one question from Q1 and Q2
1 (a)
Explain criteria for choosing a microcontroller.
8 M
1 (b)
Discuss briefly features of Microcontroller and resources in advanced microcontroller.
8 M
2 (a) (i)
Compare the power down and idle mode of 8051 microcontroller.
4 M
2 (a) (ii)
Differentiate between microprocessor and microcontroller.
4 M
2 (b)
Draw and explain architecture of microcontroller.
8 M
Answer any one question from Q3 and Q4
3 (a)
Explain the use of the following registers: (i) DPTR
(ii) Register B
(iii) PC
(iv) Accumulator.
(ii) Register B
(iii) PC
(iv) Accumulator.
8 M
3 (b)
Explain PSW register of 8051. Write code for selecting bank 2 of 8051.
8 M
4 (a)
Explain steps to transfer data serially in 8051 and receive data serially. Give the importance of related flags.
8 M
4 (b)
Write a program to transmit letters 'CITYBUS' to serial COM port using 8051 at 9600 baud rate. Assume XTAL = 11.0592 MHz.
8 M
Answer any one question from Q5 and Q6
5 (a)
Write a program to copy an array of 10 elements from a location 40 H onwards to external location D050H onwards. Draw the flowchart for the same.
9 M
5 (b)
Explain different addressing modes for ORL instruction.
9 M
6 (a) (i)
Write a program to output 55H and AAH alternately, on port 0 and 1.
4 M
6 (a) (ii)
Write a program to complement the contents of accumulator if P1.5=1.
4 M
6 (b)
Write an assembly language program to add and subtract two 16 bit hexadecimal numbers stored at the following internal RAM:
40 H-byte 1 of Number 1; 50 H-byte 1 of Number 2
41 H-byte 2 of Number 1; 51 H-byte 2 of Number 2 Store result of addition at 60 H onwards and result of subtraction at 70 H onwards.
40 H-byte 1 of Number 1; 50 H-byte 1 of Number 2
41 H-byte 2 of Number 1; 51 H-byte 2 of Number 2 Store result of addition at 60 H onwards and result of subtraction at 70 H onwards.
10 M
Answer any one question from Q7 and Q8
7 (a)
Draw a neat diagram to interface 8 bit DAC to 8051 and write an assembly language program to generate a triangular wave on CRO.
8 M
7 (b)
Move stepper motor 10 steps in clockwise and 10 steps in Anticlockwise direction and then stop the motor. Draw interfacing diagram.
8 M
8 (a)
Write an assembly language program to generate square wave using DAC. Draw the necessary diagram.
8 M
8 (b)
Write program for displaying 'GOOD MORNING' on 2nd line of 16X2 LCD.
8 M
Answer any one question from Q9 and Q10
9 (a)
Explain capture mode and compare mode of PIC microcontroller.
8 M
9 (b)
Write embedded C program for PIC to toggle bits of port B, Port C and port D continuously with delay.
8 M
10 (a)
Explain architecture of PIC 18FXX with a suitable block diagram.
8 M
10 (b)
Draw and explain status register of PIC controller.
8 M
Answer any one question from Q11 and Q12
11 (a)
Design a microcontroller based DAS to measure speed of synchronous motor and display variation on LCD, make provision of interfacing analog and digital signals such as [load cell, pressure, switches] etc.
9 M
11 (b)
Draw and explain generalized Data Acquisition System.
9 M
12
Design a pressure measurement system using 89c51/PIC to display pressure on 16X2 LCD. Draw complete block diagram, interfacing diagram and write program for the system.
18 M
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