Tuesday, June 19, 2018

30.3.2018 Embedded System I (1st Seminar) Old Question



MINISTRY OF EDUCATION
MANDALAY TECHNOLOGICAL UNIVERSITY
DEPARTMENT OF COMPUTER ENGINEERING AND INFORMATION TECHNOLOGY
First Semester Examination for Fifth Year (CEIT)
IT-51061 - Embedded System I
Date: 30.3.2018                                                                                        Time 9:00 am to 12:00 noon
Attempt All Questions.
1.      (a) Choose the correct answer(s) in the following objective questions. (10 Marks)
i.        Embedded systems are application and domain specific. State True or False
(a)   True          (b) False     
ii.      Which of the following is an (are) example(s) of embedded system for monitoring function?
(a)   Electro cardiogram machine (ECG)                         (b) Digital CRO
(c)   RS-232C                            (d) (a) or (b)                   (e) All of these
iii.    The minimum number of interface lines required for implementing I2C interface is three bus lines. State True or False
(a)   True          (b) False      
iv.    Which of the following serial bus is (are) used for communication in automotive embedded applications?
(a)   Controller Area Network (CAN)           (b) Local Interconnect Network (LIN)
(c)   Media Oriented System Transport (MOST) bus
(d)   All of these                                             (e) None of these
v.      The code memory retains its contents even after the power to it is turned off. It is generally known as volatile storage memory. State True or False
(a)   True                 (b) False
vi.    Little endian processors store both higher order and lower order byte of the data at the same address of memory. State True or False
(a) True              (b) False
vii.  Which of the following is true about CISC processors?
(a)   The instruction set is non-orthogonal
(b)   The number of general purpose registers is limited
(c)   Instructions are like macros in C language
(d)   Variable length instructions
(e)   All of these              (f) None of these
viii.   Optocoupler acts as an input device only. State True or False
(a)   True      (b) False
ix.    Dynamic RAM stores data in the form of charge. State True or False
(a)   True            (b) False
x.      Quality attributes of an embedded system are
(a)   Functional requirements       (b) Non-functional requirements
(c)   Both                                      (d) None of these

   (b)   Explain the different electronic control units (ECUs) used in automotive systems.    (5 Marks)
   (c)   What are the differences between Controller Area Network (CAN) and Local Interconnect Network (LIN) for automotive communication buses?  (5 Marks)                                               

2.      (a) Differentiate between general purpose computing system and embedded system.    (10 Marks)                                                                                       
  (b)   List the various purposes of embedded systems and explain any two of them with examples.     (10 Marks)                       
                                                                                                                                   
3.  (a) What are the different types of RAM used for embedded system design? Explain any one of them. (6 Marks)
                                                                                                                        
   (b)   What are sensors and actuators? Illustrate with examples.  (6 Marks)
   (c)   Hook up 8 LEDs to pins 2 through 9 (with resistors, of  course). Draw the interfacing diagram for connecting 8 LEDs to the port pin of a microcontroller and write the program in high level languages like Embedded C/C++ using and Integrate Development Environment.(8 Marks)
                                                                                                                                    

4.      (a) What are the differences between RISC and CISC processor?(5 Marks)
    (b)   Explain the role of Real Time Clock (RTC) in embedded system. (5 Marks)
    (c)   What is optocoupler? Explain the role of optocoupler in embedded applications with diagrams.(10 Marks)                                                                                                           

5.      (a) What are the different characteristics of embedded systems? Explain “Operates in Harsh Environment” and “Small Size and Weight” detail with examples. (10 Marks)
    (b)   What is operational quality attribute? Explain the any two of among important operational quality attributes to be considered in any embedded system design.   (10 Marks)                                                     
                                                                                                                                 


******* End of Questions *******
















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