plc with a Modbus and other Modbus communication with a common procedure origina...

计算机的modem协议,给大家做一个参考吧。-The computer s modem agreement, a reference to the U.S. to do it.

driver example, excellent code.

GSM移动台漫游规律研究的仿真程序(VC++实现)清单,提供了六方向和八方向两种模型-GSM Mobile Station Roaming Study of Simulation Program (VC++ Realize) list, providing a six-and eight-direction direction of the two models

采用自适应子信道和部分信道信息的功率分配的正交频分复用（OFDM）系统。以前的；

IP对IP的语音聊天,VB写的,比较不错-IP to IP voice chat, VB written relatively good

都是_串口线_惹的祸 都是_串口线_惹的祸-are Serial Line _ _ Put the Blame on serial lines are _ _ Put the Blame on serial lines are _ _ Put the Blame

Sigma调制功能，便可提高其频率精度，大幅降低相位噪音及带内杂散信号，并???持极高的切换速度。系统设计工程师可以利用 Delta Sigma PLL将比较频率提高到很高的水平，以大大降低相位噪音。但高比较频率会导致产生周期滑动(cycle slipping)现象。-Sigma modulation function, can increase its frequency accuracy, dramatically reducing the in-band phase noise and spurious signals, and??? Holders of high switching speed. System design engineers can take advantage of Delta Sigma PLL compares the frequency increased to a very high level in order to significantly reduce the phase noise. However, the high comparison frequency would result in sliding cycle (cycle slipping) phenomenon.

thinking in C++第二版的答案-thinking in C++ second edition answers

存在可压缩流的集成服务

FSK调制,采用直接查表法,生成一个周期的正弦波-FSK modulation, the use of direct look-up table method, to generate a sine wave cycle