串口编程（中文翻译版）

用串口通信的方式实现双机备份，串口采用了 mscomm控件。-serial communication with the realization of a two-aircraft backup, serial used mscomm controls.

51单片机的MODBUS的通信协议，学习中。

此例为单片机串口的应用!将串口外接一个串入并出的数字芯片,可实现在单片机的串口扩展成并口输出功能!-This case the application for the single-chip serial! Will add a string to the serial port and a digital chip can be realized in the single-chip serial port expansion into a parallel port output function!

VC++中实现多串口通信编程的类及样例程序,来源于-VC multi-serial communication programming category and sample program, and from the lt; VC_TurboC serial communication programming practice gt;

可以实现HDLC帧结构中的添零功能，使得信息部分不会和HDLC帧头部分混淆。-can insert zero to the hdlc frame,

一个迷你的com通讯程序，是用win32asm写的。功能全面-a program made by win32asm

可以控制串口RTS DTR引脚电压分布的小程序

全面分析了RS-232、RS-422、RS-485之间的区别-comprehensive analysis of the RS-232, RS-422, RS-485 the distinction between

串行通信接口标准经过使用和发展，目前已经有几种。但都是在RS-232标准的基础上 经过改进而形成的。所以，以RS-232C为主来讨论。RS-323C 标准是美国EIA(电子工业联合 会）与BELL等公司一起开发的1969 年公布的通信协议。它适合于数据传输速率在0～ 20000b/s 范围内的通信。这个标准对串行通信接口的有关问题，如信号线功能、电器特性 都作了明确规定。由于通行设备厂商都生产与RS-232C制式兼容的通信设备，因此，它作为 一种标准，目前已在微机通信接口中广泛采用。-Serial communication interface standard through the use and development, now has several. However, in the RS-232 standard on the basis of an improved formed. So to the main RS-232C for discussion. RS-323C standard is the United States EIA (Electronics Industry Association) and BELL, such as the development of the company in 1969 with the publication of the communication protocol. It is suitable for data transfer rate at 0 ~ 20000b/s within the scope of communication. The standard serial communication interface of the relevant issues, such as signal line features, electrical characteristics have been clearly defined. Because of prevailing production and equipment manufacturers have standard RS-232C compatible communications equipment, t