gcc支持soft fp 和hard fp两种，这里是实现了soft fp.

Linux下的.wav文件播放示例，装了QT的话先#qmake -project生成工程文件pcm.pro，然后 #qmake pcm.pro生成Makefile，然后 #make 最后 #./pcm 执行 注意代码里面包括要播放的.wav文件的路径-Linux under. Wav file playback example, QT installed, then the first# Qmake-project to generate engineering documents pcm.pro, and then# Qmake pcm.pro generated Makefile, then# Make the final#./Pcm attention to the implementation of the code inside the including the need to play. wav file path

linux下的串口示例2-examples of Serial 2

unix环境下实现的cmm语言编译器，需要在unix环境下运行，是编译原理课程设计的作业之一-unix environment to achieve the cmm language compiler, need to run under unix environment, is to compile the operating principles of curriculum design, one of

Sons for Linux 新版的安装版本代替make-Sons for Linux

44b0 beep gpio beep voice -44b0 beepgpio beep voice

IPcop软路由防火墙 FREE 开源源代码-FREE soft IPcop firewall to open stream routing code

ftp的文件下载（qt4平台C语言编写），与xp下使用的ftp下载差不多，界面没xp下好看，基本实现了文件的下载和上传-ftp file download (qt4 platform, C language), and use the ftp download xp or less the same under the good-looking interface, not xp, basically download and upload documents

YAFFS/YAFFS2是效果很理想的NAND Flash上的文件系统，是专门为NAND Flash设计的嵌入式文件系统，适用于大容量的存储设备。-YAFFS/YAFFS2 effect is very ideal of NAND Flash File System. is dedicated to NAND Flash design of embedded file system, as applied to large-capacity storage devices.

Unix网络编程，内容较基础详细，适合作为工具书使用-Unix network programming

《Unix网络编程》的源代码的debug 部分-"Unix Network Programming," the source part of the debug