RS422串口编程

通过串口发送at指令 等待返回值判断当前的网络状况以及服务商等有关信息 用与gprs的通信-sent through the serial port at the value orders waiting to return to judge the current state of network service providers and other relevant information in communications with EDGE

通过USB接口利用多媒体进行数据采集的源程序，通过调试的。-through the USB interface for multimedia data acquisition of the source, through the debugger.

用API方式实现串口通信，主要是文件传输功能-Be achieved with the API serial communication, file transfer function is mainly

电子书：《vc++ Turbo C 串口通信编程实践》，书中有源码实例，非常实用。-electronic books : "vc Turbo C serial communication programming practice," a source book examples, very practical.

VC＋＋下的多串口通信程序，并具有其他功能-VC++ multi-serial communication program, and has other functions

非常好的串口通信程序,VC工程,只需要在此基础上稍做修改就可以加入到你自己的程序中-very good serial communication program, VC works only on this basis can be tailored to your own accession process

用于在线仪表的 modbus,仅供参考，-online instrument for modbus connection, for information purposes only, thank you

一段ADSP21262用DAI口实现UART通讯的汇编源代码。

VB控制欧姆龙PLC的输入输出（I/O）。可用于小型试验工业监控系统。-VB Omron PLC control of input-output (I/O). Small can be used to test industrial control system.

modbus通信协议中文版，详细介绍了modbus协议，LRC校验，CRC校验等，并给出了C语言例程代码。-modbus conmmunication(chinese)- Modbus protocol,LRC,CRC,how to program with C