用PIC16C57发电机DTMF电话

使用ntp（network time protocol）协议从网络时间服务器获取时间并显示出来-use the network time protocol get network time from some ntp server,and print

c# 串口 以太网通信 modibus  连接 plc  从文本框输入负数 -2 补码=反+1=进位+原数 Vb 清除输入缓冲区 输出缓冲区 c#用不用清除？？哪个函数？？ //發送二進制數據 ？？？？？？？？？？？？？？ private void SendBytesData(SerialPort serialPort) { ////从 文本框取得数据 如果负数 -2 怎么办？？？？ byte[] bytesSend = Encoding.Default.GetBytes(txtSend.Text); spcom.Write(bytesSend, 0, bytesSend.Length); } 通过MODBUS TCP读写PLC源码 功能模块一：读写PLC主模块 using System; using System.Net; using System.Net.Sockets; public static void WriteWord(int mwAddress,int mwValue) {写字到以太网 if (init_plc() == 0) { try { hi = mwAddress / 256; low = mwAddress - hi * 256; hi1 = mwValue / 256; ///////////16bit low1 = mwValue - hi * 256; sendBuf[7] = 6; sendBuf[8] = (byte)hi; sendBuf[9] = (byte)low; sendBuf[10]

汽车电子控制系统及测量与标定流程介绍:整车标定流程OBD介绍三高试验-Automotive electronic control systems and measurement and calibration process description: vehicle calibration process OBD description 3 High-Test

雷达信号仿真的文章，主要是基于先进仪器仿真雷达信号。-Radar signal simulation of the article is mainly based on advanced radar signal simulation apparatus.

扩频通信.第一本有关扩频系统的专著是R.C.Dixon于1976年出版，是一本IEEE专利，1977年出版。1978年在日本京都召开国际无线通信咨询委员会公布研究成果。1982年在美国召开第一次军事通信会议，两次报告在军事中的应用。1985年美国提出CDMA(码分多址)的概念同年美国联邦通信委员会(FCC)制定扩频通信的标准和规范，逐步转入民用的商业化研究-Spread Spectrum Communication. The first book on spread-spectrum systems is RCDixon monograph published in 1976, is an IEEE patent, published in 1977. In 1978 in Kyoto, Japan, an international wireless communications Advisory Committee published research results. 1982 in the United States held its first military communications conference, two reports in the military applications. The United States in 1985 proposed CDMA (Code Division Multiple Access) the concept of the same year the United States Federal Communications Commission (FCC) the development of spread spectrum communication standards and norms, and gradually transferred to the commercialization of civilian research

Fast_CRC Algorithme source en Test programme to evaluate performance

用以太网与plc 通信的一个例子 可以参考-with Ethernet and Communications plc example of a reference

射频校准很耗时耗力，为简化产线生产麻烦，提高生产效率，可以按附件代码，直接替换基线包对应文件，实现不校准能满足收发功率和灵敏度的要求。

Ultrawideband (UWB) multiband OFDM physical layer with fixed-point transmitterreceiver modeling

omnet下wsn节点间泛洪消息发送，实现节点定期更新消息-omnet wsn nodes under the flood-messaging, and nodes regularly updated news