用于在线仪表的 modbus,仅供参考，

IIC_slave硬件的代码，已经经过FPGA验证-IIC_slave hardware code, and has been verified through FPGA

对一组数进行计算，产生两个字节的CRC校验结果的程序-Calculated on a set number to generate two bytes of the CRC check result of the procedure

对要进行网络编程和串口编程的人员有很大帮助。-right to network programming and serial programming staff is very helpful.

《VC++ 和VB串并口开发技术工程应用实例导航》一书的配套源代码，第1章 串口编程调试精灵，第2章 云台镜头控制系统，第3章 电话自动应答系统，第4章 短信实现远程监测系统，第5章 步进电机控制，第6章 来电显示客户管理系统

本文详细地介绍了在Win32环境下通过调用通信API 函数以异步方式来实现PC机和MCS 51 单片机之间的通信过程给出了软硬件设计机理以及详细的通信协议说明-This article described in detail in the Win32 environment by calling the communication API function in order to realize asynchronous approach to PC and MCS 51 Singlechip give the communication process between the design of the mechanism of the hardware and software as well as detailed description of the communication protocol

用从c++编写的串口通信程序，内有详细的了解并设置串口参数的源码，并含通信原理-prepared from the use of serial communication program, with detailed understanding of serial port parameters and set up the source code, and communication with Principle

DOS下，异步串口通信C代码，根据具体需要可裁减-DOS, asynchronous serial communication C code, according to the specific needs can be trimmed

ATmega128串口通信,在ICC AVR下编译成功-ATmega128 uart communication

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

串口通信的东东 串口通信的东东串口通信的-Dongdong serial communications serial communications serial communications Dongdong