一个简单的聊天室程序,用VC实现,可以实现简单的功能-a simple chat room procedures, with VC, can achieve a simple function

扩频发射机，信道编码采用(2, 1, 7)卷积 码, 扩频模块采用扩频长度255 的kasami码, 极性变换模块为3bit 量化模式, 内插模块为每两比特间插入7bit 和输出滤波为16 阶的FIR 滤波器。-direct sequence spread spectrum transmitter

Timer，内部定时器，有Timer0、Timer1、Timer2等。 USART：Universal Synchronous Asynchronous Receiver Transmitter，同步/异步串行传输，如RS232、RS485等。 MSSP；Master Synchronous Serial Port，两线式(I2C)与三线式(SPI)标准同步串行传输协定，常用于EEPROM内存资料的烧录与读取，或是与其它集成电路沟通与联系，形成多芯片网络。 2. PIC16F877基本电路 2.1 PIC振荡频率电路

一个基于dialogic板卡的测试程序。-a board based on the test procedures.

获取Modem的信息 -Getting the information of Modem

用于产生解析信号，产生一个信号的同相和正交分量以及包络和相位-used to produce analytical signal, a signal generated in the same phase and quadrature components and the envelope and phase

PN sequence generation using matlab

这是本人学习CVI时下载的一个小程序，本程序根据原CVI串口例程改写，可以改变端口号、波特率等参数。并加入了显示串口状态的LED。

详细的串口状态，获取串口的各种状态.帮助理解串口编程。-detailed status, access to the serial port state. To help understand serial programming.

WDM驱动程序设计　　 一．WDM简介 　　微软不断推出新的操作系统，现在Windows98和Windows2000已经成了主流，原先用来实现驱动程序的VxD技术随着Win95的淡出也慢慢地将退出历史舞台，在Windows98和Windows2000中设备驱动程序将根据Windows驱动程序模型（WDM）来设计。WDM通过提供一种灵活的方式来简化驱动程序的开发，在实现对新硬件支持的基础上减少并降低所必须开发的驱动程序的数量和复杂性。 -WDM Driver Design 1. WDM briefed constantly introduce new Microsoft operating system, now Windows 98 and Windows 2000 has become mainstream. originally used to achieve the VxD driver technology with the Windows 95 are slowly fade out to be from the historical stage, in Windows 98 and Windows Device Drivers under Windows Flooding dynamic process model (WDM) to the design. WDM by providing a flexible way to simplify driver development, the realization of new hardware support on the basis of the reduction and cut the need to develop drivers for the number and complexity.