ds1302和数码管写的时钟程序，比较经典！-DS1302 and digital control clock Writing procedures, compare the classic!

实时时钟芯片DS1302的C51程序，可调节时间，LED显示，学习板上实验通过。-Real-time clock chip DS1302 the C51 procedure, adjustable time, LED display.

此为51单片机控制4个8段显示译码器的实验程序，程序直接可用，注意8段显示译码器的极性-This is the 51 single-chip control 4 decoder 8 shows the experimental procedure, the procedure can be used directly, paying attention to paragraph 8 shows that the polarity of

用C语言编写的ds1302数字钟程序，附有电路图可以仿真。-Ds1302 digital clock program written in C, with a circuit diagram can be simulated.