PIC16F877 Timer 0 Interrupt Mode Debugging-EEWORLD

PIC16F877 MCU Timer 0 Interrupt Mode Debugger

#include

#define uchar unsigned char

#define uint unsigned int

__CONFIG(0x3B31);

void init(void);

wint intnum;

void main(void)

{

heat();

while(1)

{

if(intnum >= 20) //1S is up

{

intnum = 0;

RD0 = !RD0;

}

void init(void)

{

TRISD = 0; //PORTD pin is output

PORTD = 0; //PORTD pin is low level

OPTION = 0x07; //Timer 0 divided by 256

INTCON = 0xa0; // total interrupt, T0 interrupt

TMR0 = 61; //TMR0 = (256-195);

//TR//Timer 0 has no start/stop bit

}

void interrupt time0(void)

{

T0IF = 0; //Timer overflow clear

TMR0 = 61; //Reload initial value

intnum++; //Accumulator, accumulated to 20*50ms in the main program

}

Keywords：PIC16F877 Reference address：PIC16F877 Timer 0 Interrupt Mode Debugging

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