代码

#include "exynos_4412.h"
void Delay(unsigned int Time)
{
    while(Time--);
}
int main()
{
    /*设置一级分频*/
    WDT.WTCON = WDT.WTCON | (0xFF << 8);
    /*设置二级分频*/
    /*WTCNT递减频率 = PLCK(100000000)/(0xFF + 1)/128 = 3052*/
    WDT.WTCON = WDT.WTCON | (0x3 << 3);
    /*禁止WDT产生中断信号*/
    WDT.WTCON = WDT.WTCON & (~(1 << 2));
    /*使能WDT产生复位信号*/
    WDT.WTCON = WDT.WTCON | 1;
    /*设置计数器的初始值*/
    WDT.WTCNT = (3052 * 5);
    /*使能WDT,计数器开始递减*/
    WDT.WTCON = WDT.WTCON | (1 << 5);
    while(1)
    {
        printf("WDT.WTCNT = %d\n",WDT.WTCNT);
        /*喂狗*/
        WDT.WTCNT = 3052;
        Delay(100000);
    }
    return 0;
}