Embedded System is used to design real time system.

1. Embedded
System
K.Senthil

2. Embedded System
4. Microprocessor, 6. RAM, 7.Flash Memory

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.

8. Processors
 Microprocessor
 Processor with dedicated connections for
ROM, RAM and Flash
 Microcontroller
 Everything included in the chip

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