#MA #PIC Square Wave Generation using PIC Timer0

#include <P18f4520.h>

#pragma config OSC=HS

#pragma config PWRT=OFF

#pragma config WDT=OFF

#pragma config DEBUG=OFF, LVP=OFF

#define D1 PORTBbits.RB4

#define D2 PORTBbits.RB5

unsigned char data;

void timer0(void);

void main()

{

TRISD=0X00;

PORTD=0x00;

ADCON1=0x0F;

TRISBbits.TRISB4=0;

TRISBbits.TRISB5=0;

D1=1;D2=0;

while(1)

{

D1=~D1;

D2=~D2;

timer0();

}

}

void timer0(void)

{

T0CON=0x01;

TMR0H=0x00;

TMR0L=0X00;

T0CONbits.TMR0ON=1;

while(INTCONbits.TMR0IF==0);

T0CONbits.TMR0ON=0;

INTCONbits.TMR0IF=0;

}