用串口通信的方式实现双机备份，串口采用了 mscomm控件。

max232通讯驱动源程序-max232 communications driver source

VC类,标准串口类,无消息类型,用于工业控制中-VC-type, standard serial-type, non-news type, used for industrial control

的问题.派尔高协议,控制左转右转时,出现问题.其他功能好用.我用DELPHI写的程序,在MOUSEDOWN中, str := chr($FF)+chr($01)+chr($00)+chr($04)+chr($0F)+chr($00)+chr($14) MSComm1.output := str 在CLICK事件中: str := chr($FF)+chr($01)+chr($00)+chr($00)+chr($00)+chr($00)+chr($01) MSComm1.output := str -Problem. Pelco agreement左转右转control when there are problems. Other features easy to use. DELPHI I used to write the procedures in the MouseDown, str: = chr ($ FF)+ Chr ($ 01)+ chr ($ 00)+ chr ($ 04)+ chr ($ 0F)+ chr ($ 00)+ chr ($ 14) MSComm1.output: = str in the CLICK event: str: = chr ($ FF)+ chr ($ 01)+ chr ($ 00)+ chr ($ 00)+ chr ($ 00)+ chr ($ 00)+ chr ($ 01) MSComm1.output: = str

ANSI Standard (X3.64) Control Sequences for Video Terminals and Peripherals

西门子200PLC与上位机通信 delphi开发经典源码-PC 200PLC with Siemens Communications to develop the classic source delphi

开源串口利用Xmodem,Ymodem,ZModem 下载,上传的程序.在Linux,Arm-Linux 都可使用-Open serial port using Xmodem, Ymodem, ZModem download, upload procedure. In Linux, Arm-Linux can be used

VC++实现串口通信，觉得好的人顶详细介绍串口通信-VC serial communications, the top people feel good detail Serial Communication

本源码主要是通过API函数实现串口打开，读写串口和关闭串口。-the source mainly through API functions Serial opened, read and write serial and serial closed.

通过串口接收到外部发来的命令,来控制8路继电器的开关-Received through the serial port to an external command sent to control the 8-way relay switch

a minimal microcontroller based project to establish a communication on the serial port