Name of the College : SREE CHAITANYA COLLEGE OF ENGINEERING
University : JNTUH
Department : Electronics And Communication Engineering
Subject Code/Name : 07A80402/EMBEDDED AND REAL TIME SYSTEMS
Year/Sem : IV/II
Website : scce.ac.in
Document Type : Model Question Paper
Download Model/Sample Question Paper : https://www.pdfquestion.in/uploads/scce.ac.in/4946-07A80402-EMBEDDEDANDREALTIMESYSTEMS.pdf
Embedded & Real Time Systems :
Code No: 07A80402
R07 Set No. 2
IV B.Tech II Semester Examinations,April/May 2012
Related : Sree Chaitanya College Of Engineering 07A80403 Biomedical Instrumentation B.Tech Question Paper : www.pdfquestion.in/4945.html
Common to Electronics And Telematics, Electronics And Instrumentation Engineering, Electronics And Communication Engineering
Time: 3 hours
Max Marks: 80
Answer any FIVE Questions :
All Questions carry equal marks :
1. (a) Explain Task scheduling and give some examples
(b) Explain about the following scheduling algorithms
i. First-in-First-out.
ii. Round-Robin with priority. [8+8]
2. (a) Write note on Wireless LAN.
(b) Explain briefly about RS422/RS485. Dierentiate between RS232 and RS485. [8+8]
3. (a) How do you describe a System as a State Machine?
(b) Explain about QNX.
(c) Explain briefly about Moore-type FSM. [5+5+6]
4. (a) Write a small program in Embedded C that reads a le of integers and outputs their sum
(b) Write a `C’ program that does not add the integers using built-in addition Operator of a programming language, but instead simulates addition by using an Addition function that converts each integer to a string of 0’s and 1’s, adds the String, Mimicking binary addition and converts binary results to an integer.
(c) Compare the performance of native program to the performance of the simulator Program in a large le. [6+5+5]
5. With suitable examples explain how to:
(a) Post a message in a Message Queue
(b) Read a message from message queue
(c) Show queue waiting list. [5+5+6]
6. (a) Explain briefly about SHARC architecture.
(b) What is the use of Clock Circuitry in embedded Systems? [8+8]
7. Design a single- purpose processor that outputs Fibonacci numbers upto n places. Start with a function computing the desired result, translate it into a state diagram and sketch a probable datapath. [16]
8. List the various Open source embedded operating systems and explain their features. [16]
Code No: 07A80402
R07 Set No. 4
1. Write short notes on the following topics
(a) Cache Memory
(b) Pipelining
(c) Addressing Modes
(d) Register and Base address. [4+4+4+4]
2. With suitable examples explain how to
(a) Set time
(b) Time delay (In system clock ticks)
(c) Reset Timer. [16]
3. (a) What is ip flop? Explain Master – Slave ip flop.
(b) Explain about RT – Level sequential components and sequential logic design. [4+12]
4. (a) Explain about Synchronization among Processes.
(b) Explain about Process Suspend, Resume and Join. [10+6]
5. (a) Explain the importance of Semaphores in RTOS.
(b) Explain the dierence between Semaphores and Mutex. [8+8]
6. With suitable examples explain how to:
(a) Query a Mailbox
(b) Post a message in a Mailbox
(c) Read message from a Mailbox. [5+6+5]
7. Show how to partition a single nite state machine into two smaller ne state Machines, which might be necessary to achieve acceptable synthesis tool in run time. [16]
8. (a) What are the devices that can be connected through IEEE 1394 Bus? Explain its limitations.
(b) What are Bluetooth devices? Explain how they can be used to setup Personal Area Networks? [8+8]
IV B.Tech II Semester Examinations,April/May 2012 :
Embedded And Real Time Systems :
1. Taking suitable examples explain how to
(a) Create a Mutex
(b) Delete a Mutex
(c) Release a Mutex. [5+5+6]
2. With suitable examples explain how to
(a) Flush a queue
(b) Post a message in front of Queue.
(c) Broadcast a queue. [5+6+5]
3. (a) Explain about hardware interface to RS 232 with all its hand shake signals.
(b) Explain the features of USB. [8+8]
4. (a) What is an interrupt? Why are they required in a computer? Explain clearly
how multiple interrupts are handled by the computer.
(b) Explain various design considerations that are common to broad range of
Embedded Systems. [8+8]
5. Write short notes on following
(a) Windows CE
(b) QNX
(c) Real – Time Systems
(d) Message Passing. [4+4+4+4]
6. Explain about the following two verification approaches and compare them.
(a) Formal verification
(b) Simulation