目录1． 工作原理.................................................................................................................................................31.1 功能说明.........................................................................................................................................31.2 工作原理.........................................................................................................................................31.2.1 60 个发光二极管驱动原理.................................................................................................41.2.2 时、分、年、月、日、星期显示部件驱动原理..............................................................42． 电路图.....................................................................................................................................................53． 程序流程图.............................................................................................................................................73.1 时钟 LED 显示函数程序流程图......................................................................................................73.2 电子钟数显示日期函数程序流程图.............................................................................................83.3 电子钟显示时间函数程序流程图................................................................................................113.4 电子钟显示星期函数程序流程图...............................................................................................134． 仿真图...................................................................................................................................................165． 总结.......................................................................................................................................................186． 参考文献....................................................................................................................
