RTC8025时钟芯片驱动，可进行至阳历的下二位数和年月日星期时分秒为止的数据设定/计时/读取

阳历的下二位数为4 的倍数时可自动识别闰年且自动判别至2099 年-RTC8025 clock chip-driven, solar calendar can be carried on until the next two years and the median day of the week when accurate data set date / time / solar calendar read the next two median for a multiple of 4 can automatically identify with automatic leap year in 2099 to discriminant