realized Modbus RTU communication protocol COM

早期开发的MS8051与PC的RS232通讯-1程序源码-Early development of the MS8051 with the PC

实现串行通信 个人财务管理系统 个人财务管理系统 -personal financial management systems for personal financial management systems for personal financial management system

串行口是计算机一种常用的接口，具有连接线少，通讯简单，得到广泛的使用。常用的串口是RS-232-C接口(又称EIA RS-232-C)它是在1970年由美国电子工业协会(EIA)联合贝尔系统、调制解调器厂家及计算机终端生产厂家共同制定的用于串行通讯的标准。它的全名是"数据终端设备(DTE)和数据通讯设备(DCE)之间串行二进制数据交换接口技术标准"该标准规定采用一个25个脚的DB25连接器，对连接器的每个引脚的信号内容加以规定，还对各种信号的电平加以规定。传输距离在码元畸变小于4%的情况下，传输电缆长度应为50英尺。 　　Linux操作系统从一开始就对串行口提供了很好的支持，本文就Linux下的串行口通讯编程进行简单的介绍.-computer serial port is a common interface, with connecting lines, simple communications, to be widely used. It is commonly used serial RS-232-C interface (also known as the EIA RS-232-C) it is in 1970 by the American Electronics Industry Association (EIA) Joint Bell System, a modem manufacturers and computer terminal manufacturers developed for serial communication standards. Its full title is "data terminal equipment (DTE) and data communications equipment (DCE) between serial binary data exchange interface technology standards," the use of a standard 25 feet to the DB25 connector, the connector pin of each signal content requirements, but also the right signal--

下面是串口通信开发的部分原码,自己写的,可能有些错误,希望大大家指教.-Below is a serial communication part of the original development of the code, wrote it myself, may be some mistakes and we hope that the shortage.

我所见过用VC写的最好的串口类，具有模拟单片机中断传输的方式，避免了查询传输CPU损耗和接收超时-I have ever seen VC was the best serial category, with simulation SCM interruption of transmission, so that the CPU for transmission and reception of overtime loss

在串口被站用的情况下进行的串口模拟-the station was used for the conduct of the serial simulation!

一个基于VC++的串口通讯的 小程序，有代码。可以作为串口通讯编程的入门程序。也可作为研究用。-a VC-based serial communications small program code. As serial communication programming entry procedures. Also can be used as research.

多线程在VC++串口通信程序中的应用.pdf -multithread serial communication in VC procedures for the application. Pdf multithread serial communication in VC procedures for the application . pdf

实现对philp快球的串口控制，可以控制快球的上下左右的转动。除了本身的控制界面外，还提供了网络的接口，可以在网络上对其实施控制。需要著名的组件trayicon和控件msco-to achieve faster serial control of the ball, control the ball around the next turn. In addition to the control interface, but also provides a network interface, the network can implement their control. Need famous trayicon components and controls msco

The EZ320 utility demonstrates the communication program between host PC and the MR320.