JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD B.Tech IV INTRODUCTION TO EMBEDDED SYSTEMS Previous Question Paper (January/February - 2023 - R18)
Part A is compulsory (25 Marks). In Part B, answer any one question from each unit (10 Marks each).
Part A
Answer all questions:
List some examples of third and fourth generation embedded systems.
Answer
- Third Generation Embedded Systems: These systems utilized 8-bit and 16-bit microcontrollers, integrated circuits, and digital signal processors. Examples include early digital cameras, sophisticated industrial controllers, and network routers.
- Fourth Generation Embedded Systems: These systems are characterized by System-on-Chip (SoC) architectures, high-performance processors, and reconfigurable hardware (FPGAs). Examples include smartphones, smart TVs, advanced automotive driver-assistance systems (ADAS), and IoT gateways.
Give some important applications of embedded systems.
Answer
- Consumer Electronics: Digital cameras, washing machines, microwaves, and home automation systems.
- Automotive Systems: Anti-lock braking systems (ABS), engine control units (ECU), and airbag control systems.
- Medical Devices: Pacemakers, patient monitoring systems, and portable diagnostic equipment.
- Communication: Routers, switches, and satellite communication hardware.
What is the purpose watchdog timer?
Answer
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Write the advantages of PLD.
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What is assembly language programming?
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Write the limitations of high level language based development.
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What is the process life cycle?
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What are the merits and demerits of sleep & wakeup mechanism based mutual exclusion?
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What is monitor programming?
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Give the differences between Intel Hex and Motorola Hex file format.
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Part B
Explain the various purposes of embedded systems with illustrative examples.
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What is operational quality attribute? Explain the important operational quality attributes to be considered in any embedded system design.
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What are the different types of memories used in Embedded System design? Explain the role of each.
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Explain the role of reset circuit and real time clock in embedded system design.
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Explain the different Embedded Firmware Design Approaches in detail.
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What is a pointer in embedded C programming? Explain the different arithmetic and relational operations supported by pointers.
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Explain the commonly used thread standards for thread creation and management by different operating systems.
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Explain the various task synchronization techniques.
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Explain the different tools used for hardware debugging.
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Explain the Boundary Scan based hardware debugging in detail.
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