用C++写的modbus串口通讯程序，供大家学习参考-C wrote Modbus serial communication program for all learning reference

串口的监控程序,提供了固定命令模式和，用户自定义模式。-serial monitoring procedures, and providing a fixed command pattern and user-defined mode.

通用异步收发器st2552的驱动程序，对于运用UART通信来讲具有通用性。-Universal Asynchronous Receiver Transmitter st2552 driver for use UART communication with the terms of versatility.

多谢，大本营的对我的帮助。这是一个串口调试程序，供大家参考。-Thank you, the stronghold of my help. This is a serial debugger, for your reference.

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

PIC单片机编程程序分析，能够供初学者学习，是很好的教程-PIC microcontroller programming procedures, for beginners to learn, is a good guide

手机多串口编程的资料： 多串口协议GSM0710的各种文档以及参考代码。 0. Readme.txt 本文档 1. 710MUX 源代码，微软MUX驱动模板 2. E901Mux 源代码，E901手机实际运行的MUX驱动 3. mux 一款参考源代码 4. 3GPP-0710.doc 3GPP的多串口协议文档 5. GSM0710_Version7.0.0.pdf GSM07.10 协议规范（英文） 6. GSM0710中文版.doc 本人对GSM0710_Version7.0.0.pdf的翻译 7. NXP_MuTa_SyUM.pdf NXP对MUX部分的介绍（Part2 and Part3 ） 8. gsm0710.c 一份参考源代码 9. gsm0710.jpg 协议的简要流程图 10. gsm0710总结.txt 简单的总结 11. request.dat 请求的数据原样 12. request.txt 对请求数据的分析 13. reply.dat 响应的数据原样 14. reply.txt 对响应数据的分析-mux GSM0710 doc and source code.

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.

wavecom短信猫使用源代码及相关AT指令-Wavecom message cat use the source code and related AT commands

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