利用ds1302时钟芯片编写时钟，程序不繁琐，减少资源内存-Written by ds1302 clock chip clock, the program is not complicated, less resource hungry

单片机ds1302时钟芯片c语言程序代码-Single-chip ds1302 clock chip c language program

了解 DS1302时钟芯片的基本原理和使用，掌握DS1302时钟芯片驱动程序的编写以及实现数字字符在数码管中的显示。-Learn the basic principles DS1302 clock chip and use master DS1302 clock chip driver for the preparation and the realization of numeric characters in the digital tube display.

RTC时钟芯片程序，有DS3231，DS1302等-RTC clock chip procedures, DS3231, DS1302, etc.