多通道串口通信的测试程序，简单实用，适合初学者。

串口通信与工程实践7.1,ModemConnet.dsp,ModemConnet.h-Serial communication with the engineering practice 7.1, ModemConnet.dsp, ModemConnet.h

这个文件是有关系统串口通信的实例，作为学习串口通信入门来说是一个很好的参考实例，它是基于vb语言的，而且其中很多代码可以直接移植 -this paper is on the serial communication system examples, as a learning portal Serial Communication is a very good reference example, it is based on vb language, but many of them can be directly transplanted code

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!

A very usefull aplication for developers that creates a virtual serial ports for debug purposesin order to see the data out or in.

PIC的编程程序范例，分析的比较清晰，能够供初学者学习-programming PIC procedure example, the analysis is relatively clear, for beginners to learn

Visual C++ 串口通信技术与工程实践配套（代码）5.4节-Visual C++ Serial communication technology and engineering practice of matching (Code) 5.4

Siemens PLC与VB通讯的例子。先要安装Siemens的PCAcce-Siemens PLC与VB通讯的例子。先要安装Siemens的PCAccess

串口应用中关于rts、dtr、cts的应用，并有详细的注释-Serial applications on the rts, dtr, cts of the application and has detailed notes

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--

The PCD5003A is a very low power decoder and pager controller specifically designed for use in new generation radio pagers. The architecture of the PCD5003A allows for flexible application in a wide variety of radio pager designs. The PCD5003A is fully compatible with “CCIR Radio paging Code No. 1” (also known as the POCSAG code) operating at data rates of 512, 1200 and 2400 bits/s using a single oscillator crystal of 76.8 kHz. In addition to the standard POCSAG sync word the PCD5003A is also capable of recognizing up to 4 User Programmable Sync Words (UPSWs). This permits the reception of both private services and POCSAG transmissions via the same radio channel. Used together with the Philips UAA2080 or UAA2082 paging receiver, the PCD5003A offers a highly sophisticated, miniature solution for the radio paging market. Control of an RF synthesizer circuit is also provided to ease alignment and channel selection