基于89S51的IO口模拟串口通信，调试通过。

一个在mck2407板上控制无刷电机恒速运行的程序，全套的代码。-mck2407 board in a brushless motor control procedures constant speed operation, a full set of code.

单片机电路包括AD转换电路，DA转换电路，以及键盘显示。通过按键输入，把设定的温度数据输入到单片机中，然后单片机控制DA，让驱动器输出工作电流，驱动系统升温或者降温，然后单片机读取系统的实际温度，根据设定的系统误差，来判断系统是否需要停止工作。如果达到了要求的温度范围之内，系统保持恒定。

usb鼠标设计完全实例-usb mouse design completely example

cs8900芯片的Linux驱动，用于Arm等运行Linux系统的嵌入式设备，该芯片是主流的网卡芯片，并且可以在此基础上轻松的移植到其他同型芯片上-CS8900 chips Linux driver for the Arm, such as running the embedded Linux system equipment, the chip card chips are the mainstream, and on this basis can be easily ported to other chips on the same type

这是本人以前用C51做的TCP/IP协议,也是借鉴了一些前辈的东西,,,,绝对可用!-this is my previously C51 do TCP/IP protocol, as well as from some older things,, absolutely available!

用于51控制的矩阵键盘扫描程序，比较简单-51 control for keyboard matrix scanning procedure is relatively simple

TMS320LF2407 串行通讯接口模块(SCI232)程序，C语言-TMS320LF2407 serial communication interface module (SCI232) process, C language

大家知道在操作系统启动初始，ＥＸＥ文件是无法运行的，这个工具就是一个把ＥＸＥ文件转化为ＣＯＭ文件的工具，并提供了源代码供您分析。-We all know the initial start operating system, the EXE file is not running, the tool is a document put into EXE COM document tools, and provides the source code for your analysis.

S3C44BOX的BIOS。可使用的命令：help --- show help ? --- = help date --- show or set current date time --- show or set current time setweek --- set weekday clock --- show system running clock setmclk --- set system running clock setbaud ------ set baud rate ipcfg ------ show or set IP address load ------ load file to ram comload ------ load file from serial port run ------ run from sdram prog ------ program flash copy ------ copy flash from src to dst address boot ------ boot from flash backup ------ move bios to the top of flash md ------ show memory data move ------ move program from flash to sdram-S3C44BOX BIOS. Use the command : help show help------------------ = help show date set current date or time or set------ show current time setweek------ set weekday show------ clock system running clock setmclk------ set system running clock setbaud set baud rate------------ ipcfg show or set IP address load------ load file to ram comload------ load file from serial port run--