51单片机作为主站的MODBUS通信协议，可实现读写从站寄存器的值...

实现字符转换！需要在两台机子上运行，也可以把一台机子的两个com口连在一块！这样就行了！还需要一个串口调试程序，网上可以下载到！-achieve characters change! The need to run two machines, one Taiwan can the two com loom even in a mouth! So OK! Need a serial debugging procedures can be downloaded to the Internet!

可实现串口通信的DLL文件源码.通信速度快,易调试,占用系统资源少,非常实用.-serial communication can be realized DLL source. Communications faster, easier debugging, occupying less system resources. very practical.

Simple solution ADC , every 500ms 1 sample and sending 8 bit value by software UART on ATtiny13. Used in antenna rotators for finding direction.-Simple solution ADC , every 500ms 1 sample and sending 8 bit value by software UART on ATtiny13. Used in antenna rotators for finding direction.

本源码主要是通过API函数实现串口打开，读写串口和关闭串口。-the source mainly through API functions Serial opened, read and write serial and serial closed.

可以实现HDLC帧结构中的添零功能，使得信息部分不会和HDLC帧头部分混淆。-can insert zero to the hdlc frame,

此程序利用串口读取民航AFTN电报网中的AFTN信息，然后进行电报解读，并将解读出来的信息存储到数据库中。是民航常用的电报数据读取端口-use of this procedure to read CAD AFTN serial cable network AFTN the information and then proceed telegram read, and read out the stored information to the database. CAD is used to read the data cable port

max232部分程序，pdf文件，串口调试助手.-MAX232 some of the procedures, pdf file, serial debugging aides.

Siemens PLC与VB通讯的例子。先要安装Siemens的PCAcce-Siemens PLC与VB通讯的例子。先要安装Siemens的PCAccess

实现串行通信 个人财务管理系统 个人财务管理系统 -personal financial management systems for personal financial management systems for personal financial management system