JNTU
JNTU B.Tech IV EMBEDDED SYSTEMS Previous Question Paper (December-2023/January-2024 - R15)
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
Why oscillator circuit is used?
Answer
An oscillator circuit is used to generate a continuous, periodic waveform, typically a clock signal, which provides the timing reference necessary for the synchronization of operations within a microcontroller or digital system.
Differentiate between program memory and data memory.
Answer
Program memory (ROM/Flash) is non-volatile and stores the executable code and constant data, whereas data memory (RAM) is volatile and stores temporary variables, stack data, and dynamic information during program execution.
What is process scheduling?
Answer
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Compare regular and real-time operating systems.
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What is a semaphore?
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Explain the testing on host machine.
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What are the types of exceptions in ARM?
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What are the advantages of ARM processor?
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Explain PC-relative addressing.
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Write the features of ARM instruction set.
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Part B
Explain the functional pin diagram of 8051 Microcontroller.
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Discuss all interrupts in 8051 microcontroller.
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Describe the memory management with and without swapping.
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Message Queues
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Mail boxes.
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Discuss the advantages and disadvantages of scheduling in real-time systems.
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What are the embedded debugging techniques? Explain any two techniques.
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Name the various interrupt handling schemes in ARM and explain any two schemes.
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Discuss ARM families in detail.
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Write and explain the data processing instructions, branch instructions and load stress instructions of ARM protocol.
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Explain the all stack instructions in ARM.
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