Linux系统调用

综合比较了嵌入式GUI的几种实现方式，结合嵌入式系统的特点，研究了嵌入式GUI中的关键技术， 分析了嵌入式GUI与普通GUI系统的不同之处，提出一种通用的嵌入式图形用户界面系统的设计思想和体系结构， 这种嵌入式GUI实现方案具有轻型、占用资源少、可剪裁等特点。-Embedded GUI comparing several ways, combined with the characteristics of embedded systems to study the embedded GUI of the key technologies, an analysis of embedded GUI and general GUI systems differ, a general-purpose embedded graphical user interface system design concepts and architecture, the embedded GUI programs realize light, taking up less resources can be cut and so on.

linux环境下 共享内存的简单使用，可以学习共享内存的一般方法-linux environment simple to use shared memory, shared memory can learn the general approach

在进行linux服务器编程时经常要用到消息队列编程,但直接使用系统调用可能还不能实现需要.此例子演示了怎样在用内核调用操作消息队列,控制消息队列溢出,消除"死"消息的方法.-during regular programming to be used when the message queue programming, but the direct use of system calls may also need to achieve. this example demonstrates how to use the core operation called Message Queue, control Message Queue overflow, eliminating the "death" of news.

一个监控数据库的小脚本 可以通过运行这个脚本来监控数据库中的一项值的变化，来用0，1来判断这个值。-a small monitoring database scripts can run this script to monitor a database of the change, used to 0, 1 to judge the value.

修改信号量SIGINT例子-revised volume SIGINT signal example

linux编程的简单例子，涵盖文件I/O，多线程，多进程，socket等入门经典-linux programming simple example, covering file I/O, multi-threaded, multi-process, socket, such as Introduction to Classical

altera串口源代码程序-ALTERA source code procedures

|-- p6.1.c 获得标准输入、输出和错误输出的终端名称 |-- p6.2.c 修改终端控制字符示例 |-- p6.3.c 使用curses实现密码输入 |-- p6.4.c 使用tcgetattr函数和tcsetattr函数实现密码输入 |-- p6.5.c 串口进行读写示例 |-- p6.6.c 扬声器发声程序 |-- p6.7.c 使用声卡播放音频文件 `-- p6.8.c 声卡录音程序示例 -|- P6.1.c access to standard input, output and error output terminal names |- p6.2.c modified sample terminal control characters |- p6.3.c realize the use of curses password |- p6. 4.c use tcgetattr function and realize tcsetattr function password |- p6.5.c serial read and write sample |- p6.6.c loudspeaker audible procedures |- p6.7.c use sound card to play audio files `- p6.8.c sound card recording procedures sample

基于上海电信 sgmp3.0短信协议,实现的源程序,现网运行稳定,unix (freeBSD) 环境下编程.-Shanghai Telecom sgmp3.0 message based on the agreement, realize the source, is running a stable network, unix (freeBSD) programming environment.

制作文件系统的利器。用于嵌入式系统开发。-Production file system tool. For embedded systems development.