#include
#include
#include
#include "delay.h"

void watchdog_init(void)
{
WDTCR |= ((1 << WDTOE) | (1 << WDE)); /*啟動(dòng)時(shí)序*/
WDTCR = ((1<< WDE) | (1 << WDP2) | (1 <}

void main(void)
{
watchdog_init();
DDRB_Bit0 = 1;

PORTB_Bit0 = 0 ;
delay_ms(500);
_WDR();

PORTB_Bit0 = 1 ;
delay_ms(500);
_WDR();

while(1){;}