moden串口编程（涉及AT指令，通用异步接收发器UART）

串口通信程序，完成数据采集，验证证明正确，可以使用哦-Serial communication program, the completion of data acquisition, validation to prove correct, you can use the oh

自己编写的串口通信上位机。一直工程在用，其中的发送数据我已经做了修改！-the programme of serial communication

关于RS-232 RS-485串口通信的详细资料-On the RS-232 RS-485 serial communication of detailed information

本串行通信程序利用汇编语言通过BIOS中断调用和DOS功能调用实现PC机双机串行通信。其中，上位机和下位机串行口均为辅串口COM2（口地址为2FXH），对外用9针连接器与令一台PC机连接；BIOS通过“INT 14H”4个中断服务子程序，分别完成串口初始化编程、发送一帧数据、接受一帧数据以及测试通信线状态。本程序分为PC机串口自动测试程序（目的是测试串口好坏）和PC机全双工双机通信程序两个部分。-the serial communications procedures through the use of assembly language BIOS interrupt calls and function calls DOS PC Dual Serial Communication. Among them, PC and the next crew will be supplemented by serial port Serial COM2 (I address 2FXH) external with 9-pin connectors and enable a PC connection; through the BIOS "INT 14H," four interrupt service routines, complete serial port initialization programming, Send a data receiving a data communications test and the state line. The procedures are divided into PC serial automatic test procedure (for the purpose of testing Serial good or bad) and full-duplex PC-machine communication program two parts.

一个C语言编写的串口程序，用于UNIX平台-a C language Serial procedures for the UNIX platform

RS232串口,详细编程源代码,包括串口的设置,读写.-RS232 serial ports, a detailed programming source code, including the serial port settings, reading and writing.

Advantech Driver Demo: Interrupt Data Transfer

串口程序，可以使初学者能够很轻松的学好这个编程的方法-Serial procedure allows beginners to learn is the easy programming method

modbus rtu 通讯 使用spcomm控件-modbus rtu protocl use spcomm activX

实现数据链路层 串口间的通讯，可以调试网络间的简单连接-Data link layer communication between serial port, you can debug a simple connection between networks