键盘设备驱动,只需修改代码里的功能码和系统码即可使用

一个很好的音乐发生程序，能发出动听的旋律-Occurrence of a good music program, to issue a beautiful melody ... ...

用于motorala 68K系列处理器的小实时多任务操作系统 The OMU Kernel was written to provide a cut-down Unix-like O/S for a home-made 6809-based home computer built by me, Steven Hosgood, in the early 1980s. This package contains the RTOS version of omu68k, derived from a port of the original 6809 code to the 68000 done by Terry Barnaby and me.-for motorala 68K processor series of small RTOS The OMU K ernel was written to provide a cut-down Unix-li ke O/S for a home-made 6809-based home computer built by me, Steven Hosgood. in the early 1980s. This package contains the RT OS version of omu68k. derived from a port of the original 6809 code to t he 68,000 Barnaby done by Terry and me.

为C8051F005制作的网络模块--Network module for C8051F005.

开源USB无线键盘(AVR单片机+PDIUSBD12+nRF24L01)有图，有代码。

mc35中文资料，很难得的好资料，很不好找的-MC35 Chinese data, it is difficult to get good information, very不好找the

一个垃圾压缩车的PLC程序。采用X端口作为模拟量转换后的数据量输入口。这种方法不需要买模拟量模块，1000块就省下来了！-A garbage truck PLC compression procedures. X-port analog conversion, as the amount of data input. This method does not need to buy analog module 1000 on the savings!

应用背景 VB写的控制程序，通过PC端上位机控制，在电路板上实现相应的演示效果。  VB write control procedures, through the PC side of the upper computer control, on the circuit board to achieve the corresponding demonstration effect. 关键技术首先 烧写程序到单片机   晶振 11.0592MHZ连接好串口线打开上位机软件 选择好COM端口  设置波特率为9600 First of all burn to write programs to chip crystal 11.0592Mhz serial line connection open PC software select the COM port to set the baud rate of 9600

应用背景基于网络控制mini2440开发板GPIO资源实训项目，对于初学者学习嵌入式基础知识有较强的帮助。。。。。。关键技术leds.cgi 网关程序源代码(该程序在开发板上的位置：/www/leds.cgi)，可见该网关程序 其实就是一个shell 脚本，它被网页leds.html 调用为一个执行“action”,这是通过在leds.html中添加来实现的。leds.cgi可以获得网页的变量QUERY_STRING,这个变量存储了网页所提交的字符串，从而leds.cgi就可以获得用户所提交的设置信息，继而采取相应的操作，也就是将获取到的信息加工之后送入管道，而这个管道是led-player服务器在监控的管道。

应用背景QT5版本以上的版本，用于对指定的视频进行播放，但是没有对所有的视频格式都支持，可以移植到相应的嵌入式系统进行跑程序关键技术用QT5版本以上的QMovie类对指定的视频进行采集和播放，大家可以去参考qt5版本的使用文档，里面详细介绍了这个类可以播放的视频格式类型和使用方法

Mega16微打驱动，用并行通信方式实现-Mega16 micro play is driven by parallel means of communication to achieve