wrote a German

电梯门禁系统：包括系统原理图，通信流程图和C语言源程序 AT89C52控制H6152读卡器读写Mifare射频卡并通过CAN总线连接系统主机，CAN总线控制器为SJA1000，收发器为P82C250.-Door guard system of the lift, Including systematic principle picture and source program . AT89C52 control H6152 card reader to write Mifare radio frequency nip and connect the systematic host computer through CAN bus to read, CAN bus controller is SJA1000, the transceiver is P82C250.

128*64液晶控制，控制器采用MSP430芯片。液晶为蓝色背景中文字库。-128* 64 LCD control

通用异步同步串行通信UART方式的基于atmega128l的实现-Universal Asynchronous UART synchronous serial communication mode based on the realization of atmega128l

一个51整开发板的应用(源程序电路图功能全实用给有需要的人)-A 51 the whole application development board (the whole practical source circuit functions to those in need)

台湾联咏科技NT7553E液晶资料、驱动、工具等。-Taiwan LCD NT7553E Novatek information technology, drivers, tools and so on.

Yaffs（Yet Another Flash File System）文件系统是专门针对NAND闪存设计的嵌入式文件系统-Yaffs (Yet Another Flash File System) file system is designed specifically for NAND flash memory embedded file system

单片机控制数码管显示，实现计数器功能，使能按下一个按钮之后计数器开始累加。-Single-chip digital control display, the achievement of functional counters so that they can press a button to start after the cumulative counter.

TMS320 DSP_BIOS User‘s Guide-TMS320 DSP_BIOS User

用stm32做的GPS+GPRS驱动,可以用在物联网行业,实实在在的源代码,非常有用,修修改改就可以成你的代码了...

该讲义首先介绍了版本控制的基本概念，然后讲解了svn的基本知识、体系架构，工作中常用的命令，然后介绍了常用的gui客户端，和eclipse 插件。 最后介绍了经常遇到的问题，和使用svn的一些约定。 -The notes first introduced the basic concepts of version control, and then explain the basic knowledge of the svn, system architecture, commonly used in the work order, and then introduced the commonly used client gui and eclipse plug-ins. Finally, the problem often encountered, and the use of svn some agreement.