like mathematical modeling friends can see oh! ! There's a fairly sophistica...

modbus 采用Rtu方式时检测寄存的值.-modbus test using Rtu way that the value of storage.

模板代码 实现UDP发送接收以及作为服务器网络编程等重要功能-Template code to send UDP server to receive network programming, as well as other important functions

OBD2 SAE Protocol J1979 Doc

计算机并口通讯程序-computer parallel port communication procedures

操作系统课程的实验，资源为4个Java源代码文件，实现了处理机调度，进程间通信，进程同步与互斥，存储管理，值得一看。

通信协议在串口通信编程中的实现，就是如何处理数据包，即发送时如何根据通信协议对数据进行打包，接收时如何根据协议对接收到的数据信息拆包，并取出自己想要的数据信息。-通 协 诖 通 疟械 实 未 莅 时 胃 通 协 萁 写 时 胃协 越盏 息 取 约 要 息

这是在windows上使用modem通信的例子程序，有很高的实用价值，同时也可以学习到tapi的编程方法-This is the windows on the use of the example of modem communications procedures with a high degree of practical value, they can also learn the programming methods TAPI

短信开发控件，支持西门子，诺基亚，使用串口线或者红外线连接-SMS Development Control and support of Siemens, Nokia, the use of infrared or serial line connectivity

本程序包括一组子程序和中断程序，通过S7-200自由端口功能来产生从Modbus RTU. 它支持下列Modbus功能：----1.读输出(线圈)----2.读输入(触点)----3.读保持寄存器(V 存储器).----4.读输入寄存器----5.写单路输出----6.写单路保持寄存器----15.写多路输出----16.写多路保持寄存器-this includes a subroutine and the interruption procedure for the adoption of the S7-200 free port functions to generate from the Modbus RTU. It supports the following functions : a Modbus. Reading output (2) coil. Reading input (contact)---- 3. Reading maintain registers (V memory ).---- 4. Reading input register---- 5. write single-output---- 6. write to maintain the single-route Register---- 15. write multiple output---- 16. write multiple maintain registers

通讯测试源程序员通讯测试源程序 通讯测试源程序-Communications test source programmers communications test source communications test source communications test source