abinaya

#include

#define F_CPU 16000000L

#include

#include "avr/interrupt.h"

#define lcdport PORTB

#define rs_high PORTD|=(1<<0>

#define rs_low PORTD&=~(1<<0>

#define en_high PORTD|=(1<<1>

#define en_low PORTD&=~(1<<1>

int a;

void lcd_command(unsigned char cmd);

void lcd_data(unsigned char data);

void lcd_init();

void cursorpos(char x, char y);

void lcd_print(char row, char column, unsigned int value, int digits);

void lcd_out(char x, char y, char *str);

int adc_read(char channel);

int main(void)

{

    DDRB =0xff;        //Port B as output

    DDRD |=(1<<5>

    DDRC |=(1<<0>

    DDRC |=(1<<1>

    sei();            //Enable global interrupt

    GICR=(1<<7>

    PORTD=(1<<2>

    lcd_init();

    TCCR1A=0x81;

    TCCR1B=0x01;

    TCNT1L=0;

    TCNT1H=0;

    while(1)

    {

        if(a==1)

        {

            lcd_out(1,1,"Motor Clockwise");

            OCR1AL=0X3F;

        }

        else

        {

            OCR1AL=0X7F;

            lcd_out(1,1,"Motor AntiClockwise");

        }

    }

}

ISR(INT0_vect)

{

    PORTC|=(1<<0>

    PORTC&=~(1<<1>

    a=1;

    lcd_cmd(0x01);_delay_ms(5);

}

ISR(INT1_vect)

{

    PORTC|=(1<<1>

    PORTC&=~(1<<0>

    a=2;

    lcd_cmd(0x01);_delay_ms(5);

}

void lcd_cmd(unsigned char cmd)

{

    lcdport=cmd;

    rs_low;

    en_low;

    _delay_ms(1);

    en_high;

}

void lcd_data(unsigned char data)

{

    lcdport=data;

    rs_high;

    en_low;

    _delay_ms(1);

    en_high;

}

void lcd_init()

{

    lcd_cmd(0x38);_delay_ms(5);

    lcd_cmd(0x02);_delay_ms(5);

    lcd_cmd(0x01);_delay_ms(5);

    lcd_cmd(0x0c);_delay_ms(5);

    lcd_cmd(0x06);_delay_ms(5);

    lcd_cmd(0x80);_delay_ms(5);

    lcd_cmd(0xC0);_delay_ms(5);

}

void cursorpos(char x, char y)

{

    if((x<1>2)||(y<1>16))

    {

        x=1;

        y=1;

    }

    if(x==1)

    lcd_cmd(0x7F+y);

    else

    lcd_cmd(0xbf+y);

}

void lcd_out(char x,char y, char *str)

{

    cursorpos(x,y);

    while(*str)

    {

        lcd_data(*str);

        str++;

    }

}

output