往DS1302写入数据、读取数据；设置初始时间，读取DS1302当前时间；读取DS1302时钟数据，往DS1302寄存器数写入数据。-The DS1302 write data, read data Set the initial time, read the DS1302 current time DS1302 clock reads to DS1302 write data register number.

六位数码管ds1302+18b20+c51时钟C程序-Six digital ds1302+ 18b20+ c51 clock C program