Embedded system

Fundamental ofEmbedded system

robo indiahttp://roboindia.comIntroduction to Embedded SystemAn embedded system is a computer system designed to perform one or a few dedicated functions.Controlled by Microcontroller and Microprocessor.E.g. - Digital Watches and MP3 Player to Traffic light control to Factory control even in Nuclear power plant.

NEED OF EMBEDDED SYSTEMFor quick performanceto avoid human interventionsOptimized SystemLow cost of the productincreasing the reliabilityIt fulfill few requirements such as constraints in power-consumption, size-limitations, reliability or real-time performance

Building Blocks I/P Devices (Sensors)IR SensorsLM35 Temp. SensorPressureGyroscopeAccelerometer

O/P Devices (Actuators)DC-MotorIC-EngineServo motorsStepper motor

Decision making deviceMicro controller/Microprocessor

Difference between c and pIt Doesnt have memory to store data.

It doesn't have inbuilt RAM

Microprocessor is an IC which has only the CPU inside themDifference between c and pMicrocontroller has a CPU, in addition with a fixed amount of RAM, ROMCan be used as stand alone device.Microcontroller have features like I/O ports and timer.Inbuilt Memory and processor and various other peripherals.Atmega16 Pin Diagram

Input/output Ports Atmega16 have total of 40 pins 32 I/O pins.. PORTA = 8 Pins PORTB = 8 Pins PORTC = 8 Pins PORTD = 8 Pins Why CompilerTo Write Program in CConverts C-file to Hex-file.

Why ProgrammerProgrammer is required to transfer the Hex File from your PC to Micro Controller.

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