固定电话的来电检测及显示程序，包含DTMF和FSK信息两种。非常适用...

国人开发的电子钱包-countrymen development of an electronic wallet

串口之间通信的源代码。使用C++开发，对初学者有用。

自己初学写的有关网络传输数据的小程序，请大家多多指教-learning to write their own network transmission of the data of small procedures, please exhibitions

20050417112235232simple.c，简单的C程序设计开发技术-20050417112235232simple.c, a simple C program design and development technology

这是一份介绍SIP协议的PPT，详细介绍了SIP协议，可以帮助SIP开发人员理解SIP协议各个消息中的头域，以及应用流程。-this is a point for the sip, it introduces the protocol of sip, it can help for programer for understanding the part

监控串口的传送状态,还可以打印监视报表,以及各种校验方式.不妨试试看-monitoring serial transmission of the state, but also can print statements surveillance, and various calibration mode. May Try

该程序是VCO的simulink不同实现。设置不同的参数可得到不同的仿真效果。-that the procedure was different VCO Simulink achieve. Set up different parameters can be obtained simulation results.

qpsk的实现及其星座图希望大家有好的资源可以互相共享-QPSK constellation diagram of the realization and hope that everyone has good resources can be shared with each other

Discrete Multi Tone (DMT) is the modulation scheme used for Asymmetric Digital Subscriber Line (ADSL) systems and one of the modulation schemes used for Very high-speed Digital Subscriber Line (VDSL) systems.

PIC16F877单片机使用外部中断最简单的演示程序，适合PIC单片机初学者使用。-PIC16F877 MCU external interrupt most simple demonstration program, suitable for PIC microcontrollers for beginners to use.