一种很好的键盘键扫描方法，对初学者有大大的帮助。

工程师在用Keil开发程序时，在代码性能要求较高的场合，需要对代码段的执行时间作统计。比如在做LED显示屏软件扫描程序，或一些定时采集数据程序，如果在软件仿真的时候就能够清晰知道代码段的运行时间，那就可以对程序进行优化，或者插入汇编代码(asm)达到最高运行速度。 关键字:Keil DLL C语言 ASM 汇编-engineers in the development process with Keil, the code performance requirements higher occasions, need to block the execution time statistics. For example, in the software do LED scanning procedures, or some regular data collection procedures, If the software simulation time can understand clearly code of the running time, it can process optimization, or insert code compilation (asm2) to achieve maximum speed. Keywords : Keil DLL C language compilation ASM

该程序比较好用容易修改，是一个单片机应用类的一个很好的程序。-err

C51单片机实现对PC键盘的读取与显示 具体细节请参考源程序 将时钟线接入外部中断 数据线接入普通I/O输入输出口-C51 MCU to read the PC keyboard and display details please refer to the source clock line access external interrupt data lines access I/O input and output mouth

非常经典的一个单片机电子钟的word文档，相信你看了以后一定有很大的感触-A very classic one microcontroller electronic clock word document, I believe you read the future, it will have very strong feelings

供C51单片机初学C语言的朋友学习使用的演示程序-C51 single-chip C for beginner friends learning to use language demo program

DES/3DES算法的C语言实现，我对代码进行优化。只需要几十个字节的内存就可以。很适合用于单片机等下位机使用。-DES/3DES algorithm in C language, I optimized code. Only need dozens of bytes of memory can be. SCM is very suitable for such use under the plan.

这是原创的基于PIC单片机的红外数据传送的接口程序包-This is the original PIC microcontroller-based infrared data transmission interface package

一个基于holtex46系列的单片机程序,自动寻迹小车!-Holtex46 a series of single-chip microcomputer-based procedures, automated tracing car!

在89C51上操作小型LCD,显示汉字,字符和图案,字库放在EEPROM-operating small LCD display Chinese characters, characters and design, font on EEPROM

AT89C51的详细中文资料,对单片机初学者来说是个不错的参考