(AUTONOMOUS)
B. Tech VII Semester Supplementary Examinations, May 2018
(Regulations: VCE-R11/R11A)
EMBEDDED SYSTEMS
(Common to Electronics and Communication Engineering Electrical and Electronics Engineering)
Date: 17 May, 2018 AN Time: 3 hours Max Marks: 75
Answer ONE question from each Unit
All Questions Carry Equal Marks
Unit I
1. Briefly explain the challenges in Embedded Computing System design. 7M
With a neat block diagram, explain the hardware and software architectures for the GPS
moving map.
8M
2. Explain the state machine specification in UML for an operation of the display and also
write sequence diagram in UML.
9M
What are the characteristics of an embedded system? List the performance metrics in
embedded computing.
6M
Unit II
3. Draw and explain the block diagram of 8051 microcontroller. 7M
Explain arithmetic and data transfer instructions.
8M
4. Write short notes on interrupts of 8051. 7M
Explain the addressing modes of 8051.
8M
Unit III
5. With a neat diagram explain three task states in RTOS. 7M
Define semaphore. Compare the three methods for protecting shared data problems.
8M
6. Write short note on the following:
i. Message queue
ii. Mailboxes
iii. Pipes
iv. Events
8M
Explain interrupt service routine in the RTOS Environment.
7M
Unit IV
7. With an example explain how linker/locators use segments to decide where to put
different parts of the code and data.
8M
Explain the Tool Chain process for building software for Embedded Systems.
7M
8. Explain the following methods used for placing embedded software into target system:
i. In-Circuit Emulators
ii. Flash
iii. ROM Emulators
9M
Briefly discuss the goals of a typical testing process.
6M
Unit V
9. Write a short note on I2C bus. 7M
With a block diagram, explain the basic architecture of a typical CAN Controller.
8M
10. With neat steps, explain design process of elevator. 11M
Define the following:
i. Network availability
ii. Manage delay
4M