Question

Please TYPE approximately 300 words discussing the following:

List and describe various features of electronic systems.

List and discuss the steps in designing an embedded system.

Answer 1

Electronic system:
In our daily life we use most of the applications from Electronic systems.
Most of the electronic systems have many inputs and outputs.
The inputs may be found Treasure temperature noise and humidity etc.
Sensors and transducers are used to convert the analogue signal into electrical signal.
Electronic systems process the electrical signals from sensors and gives desired output.
Electronic systems maybe digital or analogue based on application.
For example FM radio an electronic system which has following features.
In FM our voice signal converted to electrical signal by use of microphone and that electrical signal
Converted to FM signal by use of an oscillator. Then FM signal is converted to electromagnetic signal and then transmitted into the free space at the receiver side receiving antenna take the signal and converted into voice signal again.
From the above example be clearly understood that how electronic systems are useful in our daily life.
Some more examples of Electronics systems:
Audio amplifier, AC to DC Converter, analogue to digital converters, input devices for embedded applications. Etc.

Embedded systems:
These are the microprocessor based applications which are used to satisfy our daily needs.
Designing of an embedded system has following steps:
1)First we need to identify the requirement
2)Then pre requirement analysis of system
3)Analysis of Hardware requirements , firmware requirements and software requirements.
4)Choose suitable microprocessor for our design.
5)Power requirement analysis
6)Hardware design
7)Hardware test cases to check whether hardware is working or not
8)Firmware design and test cases
9)Overall system test cases to check weather our functionality achieved or not.

Some examples of embedded systems:
Vending machine
Automatic teller machine
Any automated system which you see in your surroundings is nothing but embedded system.