void InitClock(void)
{
uint8_t tmp;
uint8_t flag;
flag=Read1302(0x81);
if(flag&0x80)
{ //判断时钟芯片是否关闭
Write1302(0x8E,0x00); //根据写状态寄存器命令字，写入不保护指令
Write1302(0x80,((51/10)<<4|(51%10))); //根据写秒寄存器命令字，写入秒的初始值
Write1302(0x82,((2/10)<<4|(2%10))); //根据写分寄存器命令字，写入分的初始值
Write1302(0x84,((12/10)<<4|(12%10))); //根据写小时寄存器命令字，写入小时的初始值
Write1302(0x86,((27/10)<<4|(27%10))); //根据写日寄存器命令字，写入日的初始值
Write1302(0x88,((7/10)<<4|(7%10))); //根据写月寄存器命令字，写入月的初始值
Write1302(0x8c,((15/10)<<4|(15%10))); //根据写年寄存器命令字，写入年的初始值
Write1302(0x8E,0x80); //根据写状态寄存器命令字，写入保护指令
}
tmp = ReadDS1302Ram(0);
if(tmp^0xa5)
{
WriteDS1302Ram(0,0xa5);
Write1302(DS1302_WRITE,0x00); //关闭写保护
Write1302(0x90,0x03); //禁止涓流充电
Write1302(DS1302_HOUR,0x00); //设置成24小时制
Write1302(DS1302_SECOND,0x00); //使能时钟运行
Write1302(DS1302_WRITE,0x80); //打开写保护
}
}
void ReadDSRam(uint8_t *p,uint8_t add,uint8_t cnt)
{
uint8_t i;
if(cnt>30) return;
for(i=0;i<cnt;i++)
{
*p = ReadDS1302Ram(add+1+i);
p++;
}
}
void ReadDSRam(u8 *p,u8 add,u8 cnt)
{
u8 i;
if(cnt>30) return;
for(i=0;i<cnt;i++)
{
*p = ReadDS1302Ram(add+1+i);
p++;
}
}
void InitClock(void)
{
u8 tmp = 0;
DS1302_Configuration();
tmp = ReadDS1302Ram(0);
if(tmp != 0x25)
{
WriteDS1302Ram(0,0x25);
Write1302(DS1302_WRITE,0x00); //关闭写保护
Write1302(0x90,0x03); //禁止涓流充电
Write1302(DS1302_HOUR,0x00); //设置成24小时制
Write1302(DS1302_SECOND,0x00); //使能时钟运行
Write1302(DS1302_WRITE,0x80); //打开写保护
WriteDS1302ClockASCII("20160115023500");
}
//WriteDS1302ClockASCII("20140116084000");
}
