XC8 #2 TIMER1 INTERRUPT OVERFLOW VOLT AMP WAVE IN PROTEUS วัดโวลท์กระแสสัญญาณ

XC8 #2 TIMER1 INTERRUPT OVERFLOW VOLT AMP WAVE IN PROTEUS วัดโวลท์กระแสสัญญาณ

13/6/2562 SONGCHAI PRAPATRUNGSEE

XC8 #2 TIMER1 INTERRUPT OVERFLOW VOLT AMP WAVE IN PROTEUS วัดโวลท์กระแสสัญญาณ

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/*

 * File:   XC8 TIMER1.c

 * Author: sc

 *

 * Created on 10/6/2562, 17:02 

 */

//INTERRUPT 5ms=200HZ, USE CRYSTAL4MHZ HS

#include <xc.h> //PIC16F877A 

//#pragma config FOSC = HS //HS=CRYSTAL 4MHZ UP

#define YELLOW RB7

char i;

void __interrupt(high_priority) T1(void)//@4=VECTOR4

{

TMR1IF=0;//FLAG

TMR1H=0XEC;//8BIT HIGH

TMR1L=0X78;//8BIT LOW  

i++;

if(i>=100)//5mS x 100=500mS

{

i=0;

YELLOW=~YELLOW;//! ~ USE SAME

}   

}

void main()

{

TRISB7=0;

GIE=1;//GLOBAL INTERRUPT ENABLE BIT

PEIE=1;//PERIPHIRAL INTERRUPT ENABLE BIT

TMR1IE=1;//TIMER1 INTERRUPT ENABLE BIT

TMR1IF=0;//TIMER1 OVERFLOW INTERRUPT FLAG BIT

TMR1CS=0;//TIMER1 CLOCK SOURCE SELECT BIT

//T1CKPS1:T1CKPS0 =00=1:1....11=1:8 PRESCALE VALUE

T1CKPS1=0;//TIMER1 INPUT CLOCK PRESCALE SELECT BITS

T1CKPS0=0;//TIMER1 INPUT CLOCK PRESCALE SELECT BITS 

T1SYNC=1;//TIMER1 EXTERNAL CLOCK INPUT SYNCHRONIZATION CONTROL BIT

TMR1H=0XB1;//TIMER1 HI BYTE

TMR1L=0XDF;//TIMER1 LOW BYTE

TMR1ON=1;//TIMER1 ON BIT

while(1);

}