详细的串口状态，获取串口的各种状态.帮助理解串口编程。

SIP: Session Initiation Protocol具体的讲解了rfc2543-SIP : Session Initiation Protocol specific on the rfc2543

正交频分复用的研究，可以有效提高上行链路的频谱利用率。-Orthogonal frequency division multiplexing studies can effectively improve the uplink spectral efficiency.

CSDN_Microsoft IIS6_0实现WAP应用-CSDN_Microsoft IIS6_0 achieve WAP application

一个简单演示实现IP Phone的示例,使用了免费的ACM组件-a simple demonstration of the IP Phone example, the use of the free components ACM

This about how I2C works-This is about how I2C works

FFT 研究的资料，介绍FFT的原理、应用等-fft

GPRS通信程序，可发送数据，并获得GPRS设备的信息。-GPRS communication program can send data, and access to GPRS devices.

资源描述在类中定义回调函数，并在应用中实现回调函数的调用-Implemented in a class function callback

一种基于FPGA 实现的全并行结构FFT 设计方法，采用全并行加流水结构, 可在一个时钟节拍内完成32 点FFT 运算的功能, 设计最高运算速度可达11ns-FPGA-based parallel architecture to achieve the full FFT design methodology, the use of the entire parallel increase in water structure, in a beat the clock to complete 32-point FFT computation function, the design maximum speed of up to 11ns

gprs接收系统。包括网络，数据库功能。-gprs reception system. Including network, database functions.