嵌入式系统文件管理部分，对文件和目录管理，可以删除，创建，重名名，模拟dos系统。

一个嵌入式TCP IP 实现-an embedded TCP IP Implementation

使用MEGA16芯片，通过串口控制GSM模块，进行GSM模块配置，可以实现收发英文短信。当接受到相应短信可以自动反馈信息。编译环境为CVAVR-Use MEGA16 chip, through the serial port control of GSM module, GSM module to configure, you can achieve the send and receive SMS in English. When messages can automatically receive the appropriate feedback. Compile the environment CVAVR

一个非常好的嵌入式串口读程序，思路清晰，值得一看-A very good read embedded serial procedures, clear lines of thought, see

RAM掉电保护电路--Design of RAM power-off protection circuit.

程序说明：Mifare1读写模块H6152（德国ACG公司）操作函数库 5. * ASCII协议，默认设置，使用查询方式发送接收，调用前建议添加超时控制 6. * 使用语言：C51 7. * 编译工具：Keil uVision2.38a -An explanation of the procedures: Mifare1 read-write module H6152 (Germany ACG company) to operate the library 5.* ASCII protocol, the default settings, use the send to receive inquiries, call timeout before the control is proposed to add 6.* Use of language: C51 7.* Compiler tools : Keil uVision2.38a

1）能够输出锯齿波，三角波，正弦波，脉冲波. （2）能根据键盘命令进行波形之间的切换. （3）能对输出的波形频率进行调节。 -1) can output sawtooth, triangle wave, sine wave, pulse wave. (2) according to the keyboard command to switch between waveforms. (3) can adjust the output waveform frequency.

max531的驱动程序,采用SPI接收方式.经验证,完全正确.-max531 driver using SPI mode receiver. the experience card, absolutely correct.

基本上涵盖了davinci的所有测试程序的例子，是学习dm6446达芬奇平台的很好的例子-examples for dm6446

LCD显示源程序，基于6963控制器-LCD display source, based on the 6963 controller

又一flash文件系统-another flash file system