USART的驱动程序，在C++编译环境下，进攻学习参考

停车场收费系统，可以学习-parking fees system, we can learn from

This the source code for I2C(Inter Integreted Circuit) which is used in serial communication-This is the source code for I2C(Inter Integreted Circuit) which is used in serial communication

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

RS232串口通讯随书源码，包含书中的全部Delphi源码，是学习串口通讯的好东西。-RS232 serial communications with the source book, the book contains all of Delphi source, serial communication is learning a good thing.

DSP2407的串口程序，调试通过，用C语言编程-DSP2407 Serial procedures, debug, C language programming

多通道串口通信的测试程序，简单实用，适合初学者。-Multi-channel serial communication of test procedures, simple and practical, suitable for beginners.

西门子S7-200PLC自由口协议Modbus主站库文件-Siemens S7-200PLC agreement free port Modbus master library file

串口操作源程序，可以对串口读写操作，当然也可以自发自收，是一个联系串口通信的好例子-source can write to serial port, of course, can also spontaneously collected, the serial link is a good example of communication

主要是测试msp430x44x的读写，看能不能顺利读写！-mainly msp430x44x literacy test, whether we can successfully read and write!

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--