Download GTU BE/B.Tech 2019 Summer 7th Sem Old 171005 Embedded Systems Question Paper

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GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER-VII (OLD) EXAMINATION — SUMMER 2019

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Instructions:

1. Attempt all questions.

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2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.

Q.1 (a) Define the following : (07)

1. Delayed Branch
2. Load - Store Architecture

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3. 3 Address Instruction format
4. Thread
5. Leaf Subroutine
6. SoC
7. ASIC

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(b) (i) Define and classify the embedded systems with examples of each. (07)
(ii) Describe the flow of ARM development tools for embedded system design. (07)

Q.2 (a) Draw the Programmer’s Model of ARM Processor. Also Explain CPSR. (07)

(b) Explain in detail ARM 3-stage pipelining with neat Sketch. (07)

OR

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(b) Explain in detail ARM 5-stage pipelining with neat Sketch. (07)

Q.3 (a) Explain the following ARM instructions with suitable example. (07)
(i) TEQ (ii) STMDB (iii) LDMIA (iv) STMFD (v) ADDEQ
(vi) SWI (vii) BNE

(b) Discuss the Thumb programmer’s model of ARM architecture. (07)

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OR

Q.3 (a) What is Stack. Explain types of stack operation supported by ARM processor along with Instruction use for Stack. (07)

(b) Give the properties of Thumb Operation in ARM processor. Also Explain Thumb entry & Exit Process. (07)

Q.4 (a) (i) Compare Watch dog timer and RTC. (07)
(ii) Define 1. Socket 2.Mutex 3. Kernel (07)

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(b) Compare the advantages and disadvantages of data transfers using serial and parallel ports devices. Explain in brief I²C bus protocol. (07)

OR

Q.4 (a) List the various states of process/task. Explain them with state transition diagram. (07)

(b) Explain three modes of serial communication, ‘synchronous’, ‘iso-synchronous’ and ‘asynchronous’ using serial devices with one example of each. (07)

Q.5 (a) Explain the concept of semaphore used in embedded system software Development. Lists it’s types. Give brief about P & V semaphore. (07)

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(b) Explain the various methods of saving and optimizing the Power needs in RTOS environment. (07)

OR

Q.5 (a) How RTOS manages the memory, give the memory management strategy of RTOS in embedded system design. (07)

(b) Compare cooperative scheduling and pre-emptive scheduling. (07)

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