JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD B.Tech III EMBEDDED SYSTEM DESIGN Previous Question Paper (February - 2023 - R18)
Note: i) Question paper consists of Part A, Part B.
ii) Part A is compulsory, which carries 25 marks. In Part A, Answer all questions.
iii) In Part B, Answer any one question from each unit. Each question carries 10 marks and may have a, b as sub questions.
Part A
What is fourth generation embedded system? Give an example.
Answer
A fourth-generation embedded system is characterized by the use of System-on-Chip (SoC) architectures, high-performance multi-core processors, and advanced reconfigurable hardware like FPGAs, enabling complex multitasking and high-speed data processing. An example is a modern smartphone or a high-end digital camera.
Mention the significance of prototype development.
Answer
Prototype development is significant because it allows for the early validation of design concepts, identification of potential hardware and software flaws before mass production, and provides a tangible model to demonstrate functionality to stakeholders, thereby reducing overall development costs and time-to-market.
List the components of a typical embedded system.
Answer
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What is memory shadowing? What is the advantage of it?
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What is the difference between static and global functions?
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Mention the advantages of assembly language based ES firmware.
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List different types of operating systems.
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Write about preemptive scheduling.
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Differentiate between stream sockets and datagram sockets.
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Write about message queue.
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Part B
Illustrate the various purposes of embedded system with relevant examples.
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What is non-operational quality attribute? Discuss the important non-operational quality attributes examined in any design of embedded systems.
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Explain the different classification of embedded systems by giving example for each.
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What is the significance of onboard communication interface? Explain the difference between I2C and SPI communication interface.
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Expand the terms RISC and CISC. Compare RISC vs CISC processor.
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Discuss the classification of working memory with implementation sketches.
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Write a short notes on ASICs and COTs by citing their drawbacks.
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Explain the role of Watchdog timer in embedded system.
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What is the difference between ‘Super loop’ based and ‘OS’ based embedded firmware design? Which one is the better approach?
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What is Interrupt Vector Address and Interrupt Service Routine (ISR)? How are they related?
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What is function pointer? Explain the use of function pointers.
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What are the differences between multitasking and multiprocessing? Explain.
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Give a detail structure of task and a process.
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Discuss the basic functions performed by a Real-Time kernel.
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What is priority inversion? What are the different techniques adopted for handling priority inversion?
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Explain the architecture of device drivers.
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Describe different functional and non-functional requirements needed in the selection of RTOS.
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