51单片机的MODBUS的通信协议，学习中。

C51写的单片机串口通信程序,用于键盘测试和USB接口测试!-C51 microcontroller serial communication procedures for testing and USB keyboard interface test!

dos下用TC2.0编译的几个串口例程-a few examples in TC2.0 and Dos

手机模块gr47的各种操作源码，包括pdu格式转换等-phone module gr47 the various operational source, including pdu format converter, etc.

这是课程设计中我设计的一个串口通信程序，用Ｃ写的，能够双向通信-This is a curriculum design that I designed for a serial communication program, using C to write, and can be two-way communication

Visual Basic中实现串口通讯，该代码是自动读取简单程序。-Visual Basic Serial communication, the code is automatically read simple procedures.

时间调度相关的开源代码，时间调度相关的开源代码-quarts

通过串口实现PC机和下位机的通信，用VB。NET来实现-through the PC serial port and the next crew of communications, using VB.NET to achieve

RK4000通讯协议.-RK4000 communication protocol.

vc,串口通讯类和用这个类编写的一个例子程序-vc, serial communications and the use of this type of an example of the preparation process

是一个用VB编写的OPC客户端数据采集程序，在工业控制上经常会用到该通讯方式