一个俄罗斯方块的源代码，用C语言写的，可以运行。

8051单片机上4*4矩阵键盘的扫描方式3-none

x5045相关程序，用keil c,其中附有两份很实用的资料-X5045-related procedures, using keil c, one with two very useful information

俄罗斯方块程序 ,本压缩包里面含有原理图和远程序(Proteus),-Russian box procedure, the compressed packet inside contains schematic and far from the procedure (Proteus),

protel 各种常用元件库 介绍 使用方法-protel library introduced a variety of common components to use

USBKeyBoard STM32 USB 使用-USBKeyBoard STM32 USB Use

C51 USB1.1开发源码及相关开发工具和文档，以及USB接口芯片资料-C51 USB1.1 open source and related development tools and documentation, as well as information on the USB interface chip

公交车报站系统，点击站点，进行报站，单片机开发-Bus stop system, click the site, the station reported, Microcontroller Development

华邦单片机的红外发送源码,已经投入生产。其中的功能主要是把信息通过红外发送到上位机。-Winbond MCU send infrared source has been put into production. The main function of which is to send information through the infrared to the host computer.

用AVR 音乐合成： 1.音乐数据存放于芯片的flash存贮器中2.PA口显示不同的音阶变化。 3.音乐数据的低四位选择音调频率，高四位*5后，为音调持续时间。-Using AVR Music Synthesis: 1. The music data stored in flash memory chips in the mouth 2.PA show different changes in scale. 3. The music data to choose the four tones of low frequency, high 4* 5, in order to tone duration.

周立功公司开发的单片机手册，具体的数据手册见周立功网站下载。-Week Ligong Singlechip developed manual, the specific data manual see Zhou Ligong website.