Summer training embedded system
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EMBEDDED SYSTEM
An embedded system consists of hardware and software. When
chips are built into systems and software is loaded on that for a
particular functionality, it becomes an embedded system.
Embedded systems are the micro-processor/micro-controller
based computing/control systems which are designed to
perform a specific or a set of tasks.
General purpose systems
• General purpose systems i.e.
a single system can perform
variety of operations.
• System designer decides the
features and their strength.
•Bulky and costly.
Embedded systems
• Designed to perform a
specific task. i.e. a limited
operations.
• Features of the system are
constrained.
• Comparatively optimized.
e.g. Personal computers,
Laptops etc.
e.g. Calculators, Robots,
Automation control etc.
Microprocessor Based System
• Minimization Of Circuit.
• Reliable
• Power Efficient
• Production when done even on Medium-
scale is cost effective
ROBOTICS AUTOMATIC
DOORSLED DISPLAY
PANEL
AUTOMOTIVE
ELECTRONICS
ARTIFICIAL
SATTELITEHEART
PULSE RATE
METER
i-PODS Smart phones
Washing Machine Camcorders
MICROCONTROLLER OUTPUTINPUT
Subsystems of Embedded System
Three main subsystems
– Microcontroller
– Memory
• To store program
• To store data
– Input & Output
• Interconnecting
elements
Device name ROM RAM
AT89C1051 1K 64 bytes
AT89C2051 2K 128 bytes
AT89C4051 4K 128 bytes
AT89C51 4K 128 bytes
AT89C52 8K 256 bytes
AT89C55 20K 256 bytes
AT89S51 4 K 128 bytes
AT89S52 8 K 256 bytes
AT89S53 12K 256 bytes
AT89 Series Microcontrollers
OTHER HARDWARE Power Source
LED
Seven Segment Display
LCD
Keypad/Keyboard
Motors
• DC motor• Stepper Motor
Interrupt
Digital to Analog convertor
Analog to Digital convertor
OTHER HARDWARE RF Radio Frequency
DTMF Dual Tone Multi Frequency
IR Infrared
Temperature Sensor
PIR sensor (Motion Sensor)
RFID (card / tag) Reader
Companies
• SAMSUNG
• ST ELECTRONICS
• NOKIA
• APPLE
• MOTOROLA
• DRDO
• AND MANY MORE……………..