December 17, 2011

EMBEDDED AND REAL TIME SYSTEMS JNTU previous years question papers

Time: 3 hours
Max Marks: 80

Answer any FIVE Questions
All Questions carry equal marks

1. With suitable examples explain how do you:
(a) Resume a Task
(b) Change priority of a Task
(c) Query a Task. [5+5+6]

2. (a) What is ISR and briefly explain.
(b) Explain about various external interrupts in any microprocessor.
(c) Explain about Less - General ASIP environments. [12+4]

3. (a) Explain how inter-task synchronization can be done through Mailbox.
(b) With suitable examples explain how to
i. Create Mailbox
ii. Delete a Mailbox. [8+8]

4. (a) Explain about Concurrent Process Model.
(b) Explain briefly about embedded system example for Heartbeat Monitoring System. [8+8]

5. (a) Explain about various memories used in Embedded Systems.
(b) What is timing diagram? Draw and explain timing diagram for a NAND gate.[8+8]

6. (a) Draw the action plan for designing a pure embedded system in its development process.
(b) Explain the action plan for designing an RTOS based embedded system in its development Process. [8+8]

7. (a) What are the devices that can be connected through IEEE 1394 Bus? Explain its limitations.
(b) Which are Bluetooth devices? Explain how they can be used to setup Personal Area Networks? [8+8]

8. Inter CPU motherboard is an embedded board. Assuming the RTOS is ported on to this board explain the following features of this board
(a) Interrupt support
(b) DMA support
(c) Machine or Bus cycles
(d) Memory. [4+4+4+4]



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