3. Embedded System
Embedded System is a Computer System
with dedicated function that is present
inside large electrical or mechanical
system.
The common properties of embedded
system are low power consumption and
low cost of hardware because it is limited
to perform single task.
It is based on Microprocessor or
Microcontroller.
4. Varieties of Embedded System
consumer,
cooking,
industrial,
automotive,
medical,
commercial ,
military applications.
5. Varieties of Embedded System
consumer,
cooking,
industrial,
automotive,
medical,
commercial ,
military applications.
6. Characteristics
Embedded System are designed to do
some specific task.
Embedded system is not always stand
alone device.
Program written for embedded system is
called as firmware and stored in ROM.
7. User Interface
User Interface ranges from No Interface to
dedicated User Interface that looks like
Stand alone System.
Standard Interfaces are buttons, Multi
Color LED, Graphic Character LCD with
Menu.
9. Peripherals
Embedded System talks with outside
world through peripherals
RS 232
USB
MultiMedia Cards
Networks
ADC/DAC
10. Tools to write program
Developers use compilers, assembler,
debugger.
In Circuit Debugger is used to check
circuit.
11. Reliability
Embedded systems reside in large
machines so it should be tested more
carefully against errors.
Reliability can be assured using following
techniques
Watch Dog
Sub System
Limp Nodes
Hypervisor