#include
Reference address：How to use PIC microcontroller timer 0
#define uchar unsigned char
#define uint unsigned int
__CONFIG(0x3B31);
void init();
uint intnum;
void main()
{
init();
while(1)
{
if(intnum==5)
{
intnum=0;
RD0=!RD0;
}
}
}
void init()
{
TRISD=0;
PORTD=0;
OPTION=0x07;
INTCON=0xa0;
TMR0=61;
}
void interrupt time0()
{
T0IF=0;
TMR0=61;
intnum++;
}
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