AVR Based Embedded Systems

Introduction:

• What is Embedded System ?

• Microprocessor vs Microcontroller

• CISC vs RISC

A few words about the family of AVR microcontrollers

Overview of Architecture of ATMEGA8515:

• Processor Core and Functional Block Diagram

• Description of memory organization

• Overview of ALL SFR’s and their basic functionality

Low Level programming Concepts:

• Addressing Modes

• Instruction Set and Assembly Language programming(ALP)

• Developing, Building, and Debugging ALP’s

Middle Level Programming Concepts:

• Cross Compiler

• Embedded C language implementation, programming & debugging

• Differences from ANSI-C

• Library reference

• Use of #prama directive

• Functions, Parameter passing and return types

On-ChipPeripherals Study,Programming, and Application:

• Ports: Input/Output

• Timers & Counters

• UART

• Interrupts

• SPI

• Analog Comparator

External Interfaces Study,Programming and Applications :

• LEDS

• Switches(Momentary type, Toggle type)

• Seven Segment Display: (Normal mode, BCD mode,Internal Multiplexing & External Multiplexing)

• LCD (8bit, 4bit, Busy flag, custom character generation)

• Keypad Matrix

Protocols Study,Programming and Applications :

• I2C (EEPROM and RTC)

• SPI (EEPROM)

• I Wire(Sensor)

• Infrared Communication(RC5 protocol)

Selective Discussion during Project Development

• A/D & D/A Converter

• Stepper Motor, DC Motor

• RF Communcation

• RFID

• CAN

• ZIGBEE

• GSM/GPS

• USB

• MMC & SD

• Ethernet MAC