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用AT89S52实现鉴相功能，用于对光电编码器的输出进行编码。-Using AT89S52 realize phase function, optical encoder used to encode the output.

dmx512通讯程序,可以接收dmx512格式的数据-dmx512 communication procedures, can receive the data format dmx512

功能： 1、作为下位机采集8255数据并将此数据通过通讯送出， 2、采集数据为BCD，先转换成二进制，处理后再转换成BCD 3、通讯采用方式3，多机通讯，上位机发地址时TB8=1，其他TB8=0 下位机SM2=1，RB8=1时产生中断后使SM2=0收发数据，结束后SM2=1-Features: 1, as under the 8255-bit machine data collection and communications sent through this data, 2, collected data for the BCD, first converted into binary, and then converted to deal with BCD 3, communication using methods 3, multi-machine communication, PC-fat address TB8 = 1, other TB8 = 0 under the digital machine SM2 = 1, RB8 = 1 when the failure to make SM2 = 0 to send and receive data, after the end of SM2 = 1

很好的字模提取工具！能够大大加快开发字模显示程序的开发！比如说：液晶显示，led点阵模块的数据显示！-good Abstraction tool! Able to greatly accelerate the development of character mode display program development! For example : LCD, led dot matrix module data show!

对于一个单片机初者来说一定想自己设计一个小系统吧・・这里提供了以89S52为核的小系统图和源程序！希望对刚学者有所帮助-early for a microcontroller were necessarily want to run their own small design a system here to provide it with nuclear 89S52 for the smaller system map and the source! Just want to help scholars

Keil串口调试技巧（修订）与列子,虚拟串口的使用，-Keil serial debugging skills (Amendment) Liezi with, the use of virtual serial port,

这是利用51单片机来实现对cd-rom的控制并实现类似于mp3的功能!-This is the use of 51 single-chip microcomputer to realize on the cd-rom control and realize the function is similar to mp3!

编译通过的两块单片机读写双口RAM7132的原程序！供大家参考！-compiled by the two dual-port MCU literacy RAM7132 the original program! For your reference!

Keil_AGSI_SDK: 这是一个广泛使用的Keil单片机IDE平台软件仿真插件(AGSI)开发的官方SDK资料包,内含DLL插件范例和开发自己的仿真DLL插件所必须的包含文件,同时资料中还含一个48页的详细介绍如何开发此类插件的PDF指南-Keil_AGSI_SDK: This is a widely used Keil Singlechip IDE plug-in software simulation platform (AGSI) official SDK development kit, containing examples and DLL plug-ins to develop their own simulation DLL plug-ins necessary to include file, while information also containing a 48-page detailed introduction how to develop such a plug-PDF Guide

HT1622头文件，HT1622液晶显示模块底层函数 -HT1622 header files