数组下标。改写成下面这种就明白了
从内存地址0x40000000开始，视为一个unsigned int数组。

unsigned int RESET_INT(void)
{
    volatile unsigned int * p = (volatile unsigned int *)0x40000000;
    return p[0x1000 /4 ] & 0x400;
}
--
FROM 114.241.227.*