一个本人编写的时钟程序，用stc芯片，四位数码管，74ls164译码器。...

2009年全国电子设计大赛的题目，富有借鉴参考的意义，题目，最新，最好！-National Electronic Design Competition in 2009 the subject of the significance of the rich experiences for the title, the latest, the best!

键盘与显示，按下相应的按键，数码管就显示相应的数字-The keyboard and display, press the corresponding button, digital controls, it displays the corresponding figure

好的学习代码学习文件 初学者的好文章好代码调试通过-Good document for beginners to learn the code to learn a good article, good code debugging through

一个I2C为驱动的一个时钟芯片程序，很有用的，大家好好学习吧-A I2C-driven one clock chip procedures, very useful, you study hard everyone

16位按键扫描程序,包含数字钟计时,闹钟报警,及定时应用-16 button scanning procedures, including digital clock timer, alarm clock, alarm, and timing applications

24C01读写程序，称C51源代码形式：write bit（unsigned char ch）@2001/03/23函数称明：内部函数，私人用户不直接调用。

Proteus 8字的LED仿真，商业项目…源程序来至互联网，请尊重版权。-Proteus 8 character LED simulation, source code to commercial projects ... to the Internet, please respect copyright.

详细介绍了51单片机的指令系统，通过此文档进一步了解51单片机的体系结构-Detailed instructions for 51 single-chip system, the adoption of this document to learn more about 51 single-chip architecture

keil c51使用手册中文讲解-Keil decoder manual on Chinese

一个简单实用的单片机键盘扫描程序。键盘为4*4扫描的键盘，通过行列扫描进行键码判断，并通过串行口或者485信号输出键码。应用于银行系统。-A simple and practical single-chip microcomputer keyboard scanner. 4* 4 keyboard for keyboard scanning, scan through the ranks to determine the key code and, through the serial port or a key code signal output 485. Applies to the banking system.