This document provides an overview of AVR and ARM microcontrollers. It discusses Atmel's AVR microcontroller series and key features of the ATmega16 microcontroller. It also covers the ARM7 microcontroller, features of the LPC2148, and interfacing examples for LEDs, LCDs, relays, buzzers, and DC motors. The document concludes by mentioning AVR Studio 4 and μVision4 as integrated development environments for programming AVR and ARM microcontrollers.

1. AVR MICROCONTROLLER
ATMEL CORPORATION

2. INTRODUCTION
 Atmel Corporation is a leading
manufacturer of integrated circuits
 Atmel’s AVR RISC microcontroller
series
 RISC processor with a Harvard
architecture
 Harvard architecture
◦ refers to the fact that the CPU has a
program memory and a separate data

3. Families of AVR
Microcontroller
 8-bit AVR Microcontroller
◦ ATmega168 (DIP-28)
◦ ATmega328 (DIP-28)
◦ ATmega1280 (TQFP-100)
◦ ATmega16 (DIP-40)
◦ ATmega32 (DIP-40)

4. ATmega16 Microcontroller
 Advanced RISC Architecture
 16KB Flash Memory
 512 Byte EEPROM
 1KB RAM
 3 Timers, 8 Channel & 10 Bit ADC
 32 Input/Outputs
 Power ON Reset
 Programmable Brownout
Detection
 Internal RC Oscillator
 Programmable Watchdog Timer
with Separate On-chip Oscillator
ATmega16

5. Pin Diagram of ATmega16

6. BOOTLOADER CIRCUIT

7. INTERFACING
 LED
 LCD
 RELAY BUZZER
 DC MOTOR

8. LED

9. LED
#include<avr/io.h> // Headerfile for AVR
#include<util/delay.h> // Headerfile for delay
function
int main(void)
{
DDRC=0xff; // Set port C as output
while(1)
{
PORTC=0xff; // c= 11111111
_delay_ms(1000);
PORTC=0x00; // c=00000000
_delay_ms(1000);
}
}

10. LCD

11. CODE FOR LCD

12. RELAY BUZZER

13. RELAY BUZZER
#include<avr/io.h>
#include<util/delay.h>
int main(void)
{
DDRC=0x81;
while(1)
{
PORTA=0x00;
_delay_ms(100);
PORTA=0xff;
_delay_ms(100);
}
}

14. DC MOTOR
 Interfacing of DC Motor using L293D
 L293D is a motor Driver IC
 In-built two H-Bridge circuits
 Available in DIP-16

15. DC MOTOR
SIMULATION

16. DC MOTOR
#include<avr/io.h>
#include<util/delay.h>
int main(void)
{
DDRC=0xff;
while(1)
{
PORTC=0x7e;
_delay_ms(1000);
PORTC=0xbd;
_delay_ms(1000);
}
}

17. AVR STUDIO 4
 An Integrated Development Environment (IDE) for
writing and debugging AVR applications

18. ARM MICROCONTROLLER
APPLE, ALCATEL, INTEL, MARVELL, TEXAS
INSTRUMENTS…

19. the past of ARM………….
 ACORN Computers
 Successful platform BBC Micro
 Sophie Wilson (ACORN Computers) develop
instruction set & simulate on BBC
 Work started in 1983
 ARM1 with VLSI Technology were introduced in
1985
 ARM2, upgraded version of ARM1 in 1987
 Won “Queens Award of Technology” in 1992
 APPLE + ACORN  ARM6

20. ARM7
 Introduced in 1994
 Today, more than 10 million ARM7 powered
devices in market
 LPC2148 is an ARM Microcontroller
 Fabricated by Philips
 32bit Microprocessor
 RISC Architecture
 Suitable for industrial control and medical
systems
 Pipeline techniques can be employed

21. LPC2148 FEATURES
 32Bit Microcontroller in tinyLQPF64
Package
 40kB RAM & 512kB Flash
 2kB RAM for USB 2.0
 ISP/IAP via on-chip boot-loader circuit
 10 bit, 14 Channel ADC
◦ Conversion time< 2.44μs per channel
 10 bit DAC
 Low power RTC, BOD
 45 of 5V tolerant fast GPIO
 Voltage range 3.0V to 3.6V

22. Working with LPC2148
SIMULATION

23. LED interfacing program
#include<LPC214x.H
>
#define led1 (1<<0)
#define led2 (1<<1)
#define led_dir
IO0DIR
void delay(int time)
{
int i,j;
for(i=0;i<time;i++)
for(j=0;j<1000;j++);
}
int main(void)
{
led_dir=led1|led2;
while(1)
{
IO0SET|=led1|led2 ;
delay(500);
IO0CLR|=led1|led2;
delay(500);
}
}

24. KEIL μVISION4
 KEIL was founded in 1982 by Günter and
Reinhard Keil
 In October 2005, Keil (Keil Elektronik GmbH in
Munich, Germany, and Keil Software, Inc. in
Plano, Texas) was acquired by ARM.
 IDE for ARM Microcontroller
 Cross Compiler

25. CONCLUSION
 “Anyone can cook”, it is the slogan of the movie
RATATOUILLE
 like that
“Anyone can Program”
 the objective of my report is to make it clear that anyone
can prototype and easily work with the microcontroller.