Jawaharlal Nehru Technological University Anantapur 2010-1st Sem B.Tech Code :R7410505 3 IV .ester(R07)Regular s, ember/ember EMBEDDED SYSTEMS - Question Paper

Code :R7410505 3
IV B.Tech.I Semester(R07)Regular Examinations, November/December 2010
EMBEDDED SYSTEMS
(Computer Science & Engineering, info Technology, Computer Science & Systems
Engineering)
Time: three hours Max Marks: 80
ans any 5 ques.
All ques. carry equal marks
1. (a) discuss the formalisms for embedded system design.
(b) List the different complex systems available and discuss their performance characteristics.
2. define the different operating modes of the UART and associated control registers.
3. (a) discuss the following, relevant to development tools using in assembly language program-
ming.
i. Simulators
ii. Debuggers
(b) Write notes on microcontroller programming languages.
4. (a) discuss about the jump and call program ranges with suitable diagram.
(b) Write an assembly language program for place any number in internal RAM location
3Ch and increment it until the number equals 2Ah using the necessary mnemonics, Place
comments on every line of code.
5. With the aid of neat diagram the design approach of interfacing Digital-to-Analog converter to
8051 microcontroller based embedded system. Write down the necessary program.
6. (a) With an example, discuss the concept of deadlock situation during multitasking execution.
(b) discuss brie°y the inter task communication mechanisms.
7. (a) discuss how Queues are used for Intertask communications.
(b) What does embedded software development mean? discuss in brief the di®erent stages in
the development and testing of an application.
8. (a) discuss the design approach of an Elevator Controller.
(b) Write notes on Internet-Enabled Systems.

Earning:   Approval pending.