Andhra University 2008 B.E Information Technology EMDDED SYSTEMS - Question Paper

[07-4114]

IV/IV B.Tech.DEGREE exam.

First Semester

info Technology

EMBEDDED SYSTEMS –Elective I

(Effective from the admitted batch of 2004-2005)

Time: 3 hours maximum: 70 marks

First ques. is compulsory.

ans any 4 from the remaining ques..

All ques. carry equal marks.

ans all Part of any ques. at 1 place.

1. Answer the subsequent briefly:

(a) Characteristics of synchronous communication.
(b) Timer.
(c) Controlled dataflow graph.
(d) Semaphore.
(e) Modular design.
(f) Pipes.
(g) Kernel.
(h) Software validation.
(i) Cross compiler.

2. (a) Comment on different Timer and Counting devices.
(b) Elucidate on ISA, PCI, PCI-X and Advanced buses used for Parallel Communication.

3. (a) With reference to embedded systems discuss situation switching, Latency and deadline.
(b) explain interrupt servicing mechanism.

4. (a) define the phases in Software development and its models.
(b) define real time programming problems during the software development process.

5. (a) discuss different Interprocess Communication Mechanisms.
(b) explain IEEE standard POSIX 10003.2B function for standardization of RTOS.

6. (a) Compare the advantages and disadvantages of data transfers using Serial Ports.
(b) discuss modes of serial communication.

7. (a) What is the importance of device management in an OS for an embedded system?
(b) elaborate the OS units at RTOS kernel? discuss every of them.

8. (a) discuss the process modeling for software analysis before software implementation.
(b) define the modeling of multiprocessor system.

Earning:   Approval pending.