GTU BE/B.Tech 2018 Winter Question Papers || Gujarat Technological University
Subject Name: Embedded Systems
Date: 19/11/2018
Time: 10:30 AM TO 01:00 PM
Total Marks: 70
Subject Code: 2171005
GUJARAT TECHNOLOGICAL UNIVERSITY
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BE - SEMESTER-VII (NEW) EXAMINATION - WINTER 2018Subject Name: Embedded Systems
Date: 19/11/2018
Time: 10:30 AM TO 01:00 PM
Total Marks: 70
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Instructions:
- Attempt all questions.
- Make suitable assumptions wherever necessary.
- Figures to the right indicate full marks.
| Q.1 | (a) List out the advantages of ASIC based Embedded Systems. | 03 |
| (b) In absence of Digital to Analog Convertor (DAC), how can you use Pulse Width Modulator for DAC operation? | 04 | |
| (c) Explain different approaches for designing and implementing the embedded software. | 07 | |
| Q.2 | (a) How Watchdog timer is used in Embedded System design? | 03 |
| (b) Explain the significant differences between Bluetooth and Zigbee protocol. | 04 | |
| (c) Explain the differences between programmed I/O, interrupt and direct memory access approaches. | 07 | |
| OR | ||
| (c) What is Device driver? Explain the role of Interrupt in Device driver programming. | 07 | |
| Q.3 | (a) Define Interrupt Service Thread with its use in RTOS based system design. | 03 |
| (b) How semaphore helps in handling shared data problems? | 04 | |
| (c) Explain the role of TCB in task switching. | 07 | |
| OR | ||
| (c) What will happen if all the tasks are in ‘Wait state? How RTOS will handle such situation? | 07 | |
| Q.4 | (a) Describe performance matrices in RTOS based application. | 03 |
| (b) Describe the Timer functions supported in RTOS. | 04 | |
| (c) List out significant differences between a soft real time system and a hard real time system. | 07 | |
| OR | ||
| (c) Describe Deadlock with an example. | 07 | |
| Q.5 | (a) Describe the mailbox functions supported in Real Time Operating System. | 03 |
| (b) Under which circumstances a task is brought to Wait state? | 04 | |
| (c) What are the differences between a function and a task? | 07 | |
| OR | ||
| (c) Explain following scheduling policies with their differences. --- Content provided by FirstRanker.com --- (1) Earliest Deadline First (2) Rate Monotonic Scheduler | 07 | |
| Q.5 | (a) What are the significant features associated with GPIO in MSP430? | 03 |
| (b) Explain the benefits of using DCO over Crystal in MSP430 based system. | 04 | |
| (c) Describe the Watchdog timer operation in MSP430. | 07 | |
| OR | ||
| (c) How MSP430 processor is compiler friendly? | 07 | |
| (b) Explain Pin Multiplexing in MSP430. | 04 | |
| (c) Describe the Timer operation in MSP430 in association with generation of PWM wave. | 07 |
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