SIP体系架构讲义及消息交互演示

gsm tools, 是一个GSM设备测试程序,请大家马上下载啊-gsm tools, is a GSM equipment testing procedures, please immediately download ah

vc图像编程的经典教案，是VC程序员的必备参考-vc picture programming classics teach the document, is the VC programmer necessary refers

应用背景该例程实现28335与芯片AD5621的SPI通信，有很多新手不会根据所需芯片来配置f28335 SPI的寄存器，这里给了一个实例，很值得学习，我也是查看了很多资料才配置成功的 （代码也有很多注释），并且是我调试通过的！！关键技术SPI是串行外设接口（Serial Peripheral Interface）的缩写。SPI，是一种高速的，全双工，同步的通信总线，并且在芯片的管脚上只占用四根线，节约了芯片的管脚，同时为PCB的布局上节省空间，提供方便，正是出于这种简单易用的特性，如今越来越多的芯片集成了这种通信协议，比如AT91RM9200。

通过电脑串口对89SXX型单片机编程，此为单片机端的程序-computer serial port right 89SXX type microcontroller programming, such as SCM side of the process

如果你有Mobile平台的开发经验，你一定会感觉到要保存程序配置文件是有多么的不方便。那这个程序教你怎么把应用程序的配置文件保存在XML文件中，当然也可以读取，甚至稍加改进即可创建编辑XML文件。-If you have Mobile platform development experience, you will definitely feel the want to save the configuration file is very inconvenient. That this process teach you how the application s configuration file stored in XML documents and, of course, can read, and even improve a little editing to create XML documents.

使用ip多播开发的小组多人聊天软件-use multicast development of the group over chat software

实现了TD,GPRS,EDGE通信系统中物理层部分需要用到的打孔和解打孔算法，非常实用，并且已经应用到了实际的基站实现中-realize the algorithms of puncture and depuncture in the TD,GPRS,EDGE system,very very useful

分组滤波器的C语言源码，用定点算法实现，可用来做数字滤波处理。-Packet Filter C language source code, using fixed-point algorithm can be used for digital filtering processing.

BCP和整体业务逻辑（GSL）有两种类型的接口： 起始点(POI)：在呼叫处理过程中，当智能业务被触发 时，从BCP进入整体业务逻辑（GSL）处理的始发点。 返回点(POR)：在整体业务逻辑（GSL）处理结束后，返 回到BCP继续呼叫处理的终结点。 -BCP and the overall business logic (GSL) There are two types of interfaces: the starting point (POI): In the call processing process, when the intelligence business is triggered from BCP into the overall business logic (GSL) deal with the starting point. Return point (POR): in the overall business logic (GSL) after the end of treatment and return to the BCP continues to call the end point of treatment.

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