EMBEDDED SYSTEMS QUESTION BANK

1. Define system.

A system is a way of working, organizing or doing one or series of tasks by following a fixed plan, program and set of rules.

2.What are the typical characteristics of an embedded system? )(apr/may2017)

T ypical characteristics:perform a single or tightly knit set of functions; increasingly high-performance & real-time constrained; power, cost and reliability are often important attributes that influence design;Application specific processor design can be a significant component of some embedded systems.

3. What is the need of watchdog timer?(may/june 2016)

Watchdog timer is a timer that resets the processor in case the program gets stuck for an unexpected length of time.

4.What are the challenges faced in designing an embedded system? (nov/dec 2016) (may/june

Amount and type of hardware needed. Clock rate reduction

Voltage reduction Process deadlines'

Flexibility and upgrade ability

Wait, stop and cache disable instructions.

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