这不是源码，这是Protel99SE版本的 通用器件封装库，很多朋友在寻找...

单片机系统上电后，P0 口和 P1 口都被清 0。然后，你规定一个由 6 个数字构成的序列（每个数字从 0～F 中选取），比如 E、8、9、0、7、F。然后每次当单片机检测到外部中断 0发起中断时间时，读取 P0 口和 P1 口上的状态值，当连续 6 次外部中断事件的对应的数字序列构成你所设定的序列后（举例来说，如果 P0.0 是 1，P0 和 P1 的其他管脚是 0，那么我们称为检测到一次数字 0），从串口打印输出一幅类似下图的 16×16 的ASCII码的圣诞树图片。-Single-chip microcomputer system after power, P0 and P1 mouth I have been ching 0. Then you set a six figure constituted by the sequence (each number from 0 ~ F in selected), for example, E, 8,9,0,7, F. And then each time a single-chip detects external interrupt 0 initiated interruption time, I read the P0 and P1 mouth on the state value, when a row 6 times the corresponding external interrupt events constitute digital sequence set your sequence (for example example, if P0.0 is 1, P0 and P1 of the other pin is 0, then we called a number of detected 0), a printout from the serial port under similar 16 × 16 map of the ASCII code of the Christmas tree图片.

source led giao tiep qua cong LPT

595数码管驱动，用于51单片机，使用3个io口，串行驱动数码管-595 digital tube-driven, for 51 MCU, using 3 io port, serial driver digital tube

51板的常用程序，包括红外、12864、1602、AD、DA、18B20等-51 plates commonly used procedures, including infrared, 12864,1602, AD, DA, 18B20, etc.

学习C51时写的定时器程序,提供给刚学单片机程序的朋友参考-C51 when learning to write timer procedures, available to just school friends Singlechip procedure reference

CS5532的驱动程序，基于AT89S52,调试通过-CS5532 driver, based on AT89S52, debugging through

凌阳单片机实现时钟并语音报时的源代码 很有趣 当毕业设计不错

16*16点阵LED测试代码，为个人编写，主要用来测试点阵屏的好坏。-16*16 LED DOT display test

52下1601液晶驱动程序-52 LCD Driver

51系列单片机读卡程序，本人亲测，适合考勤、门禁。-51 Series single-chip reader program, I pro-test for time and attendance, access control.