ELECTRONICS (Special Paper – XV),B.Sc. – III (Semester – VI),Solapur University Question Paper,2014 Question Paper

Solapur University Question Paper
B.Sc. – III (Semester – VI) Examination, 2014
ELECTRONICS (Special Paper – XV)
Embedded system Design
Day and Date : Saturday, 12-4-2014 Total Marks : 50
Time : 11.00 a.m. to 1.00 p.m.
N.B. : 1) All questions are compulsory.
2) Figures to the right indicate full marks.
3) Use of log table and calculators are allowed.
4) Draw neat labelled diagram, wherever necessary.
1. Select correct alternatives from the following : 10
1) An embedded system consists of _________ as essential parts.
a) Hardware b) Software
c) Hardware and software d) None of these
2) In system programming is the technique of
a) embedding firmware into target device
b) developing firmware
c) simulation of results
d) none of these
3) On execution of the statement c = a/b, where a = 10 and b = 3, the value
returned to c is ________. All variables are integers.
a) 3 b) 3.3 c) 1 d) 30
4) Which of the following is correct ?
a) unsigned int BCD (int P) b) unsigned int BCD (int)
c) unsigned int (int P) d) none of these
5) __________ of the following embedded C statement is used to configure I/O
port in input mode.
a) port 0 = 0 × 00H b) port 0 = FFH
c) port 0 = 0×FF d) none of these
Seat
No.
SLR-C – 185 -2-
6) The __________ is checked to identify the completion of the count.
a) TF flag b) TI flag c) EI flag d) None of these
7) To communicate from microcontroller to PC through RS 232 the line driver
is
a) 74244 b) 8255 c) Max 232 d) None of these
8) To display the data on LCD, it should be converted into ______ code.
a) ASCII b) BCD c) Hex d) None of these
9) For designing of an embedded system to measure temperature ____ is
essential.
a) Calibration to temperature scale
b) Calibration to voltage scale
c) Calibration to current scale
d) None of these
10) To generate triangular wave _______ should be interfaced to microcontroller.
a) V to F converter
b) DAC
c) ADC
d) None of these
2. Answer any five of the following : 10
i) Define the term “ An embedded system.
ii) What do you mean by superloop ?
iii) Define the term “constants”.
iv) Draw block diagram for embedded system to generate triangular wave.
v) List five format specifiers used to format the print data.
vi) Give the structure of IF statement.
3. A) Answer any two of the following : 6
i) Write embedded C program for blinking of the LED.
ii) What are characteristics of an embedded system ?
iii) Write a note on user’s defined functions.
B) Discuss the steps involved in programming of microcontroller 8951 by using
flash magic tool. 4
4. Answer any two of the following : 10
i) What do you mean by structure of C programming ? Write a note on printf ()
function.
ii) Draw block diagram and explain hardware of an embedded system designed
for temperature measurement.
iii) Describe the designing of an embedded system for generation of square
wave.
5. Answer any one of the following : 10
i) a) Give the classification of an embedded system.
b) Write embedded C program for PWM output at any port pin of
microcontroller 8951.
OR
ii) Describe in detail the designing of an embedded system for measurement of
humidity.
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