串并口编程，可以直接控制端口

GPIB 控制Agilent 34401A-GPIB control the Agilent 34401A

基于ARM9和μC／OS-Ⅱ的Modbus通信协议的实现-Based on ARM9 and μC/OS- Ⅱ of the Modbus communication protocol to achieve

通过串口与IC设备进行数据交互传输，实现IC卡餐饮收费系统。-through the serial port and IC equipment interactive data transmission, Food IC card system.

完整的c++串口编程源代码,实现了串口通信的所有功能-complete c serial programming source code, a serial communication to achieve all the functions

这是一个基于vc串口异步通信 可以实现串口半双工的异步通信 -This is a serial asynchronous communication based on vc can achieve half-duplex asynchronous serial communications

一个C语言的串口通信程序-C language of a serial communication program

多串口调试，可以在同一个机子上连接，也可以用RS-232连接到两个机子上测试串口通讯，-Multiport Serial debugging, you can connect with a machine, can also use RS-232 connected to the two machine test serial communications,

串口通信，上位机可以呼叫下位机的8个设备号，进行数据传输-Serial communication, host computer can call the next crew of the No. 8 device, data transmission

基于MAXII的RS232串口通信程序.还有使用VB编写的上位机串口通信软件。-MAXII based on the RS232 serial communication program. There are prepared to use VB PC serial communication software.

SPI串行总线的AT45DB081的C语言控制源程序-the c progranm code of AT45DB081 with SPI serial bus