好东东，用C写的，USB接口程序，很好用

本软件在C++ Builder 6.0开发环境下编程，实现的功能是：如果将本机的两个串口通讯口COM1和COM2连接起来，可以实现本机内这两个COM口间的数据的传输；若将两台电脑的COM口连接起来，可以实现这两台电脑的串行数据传输。-the software in C Builder 6.0 development environment programming, the functions are : If the machine two serial communication port COM1 and COM2 link up the machine can achieve this within two COM ports of data transmission; if two computers connected to the COM port, This can be achieved two computer serial data transfer.

串口通信例程，内含串口类，一个老外写的，我修正了一个bug：在接收数据流未完成前退出程序会导致进程驻留在内存-Serial communication routines, containing serial port class, written by a foreigner, I fixed a bug: the receiving data stream does not quit the program before the completion of the process will lead to reside in memory

485通讯例程，供大家学习参考。 -Communications routines 485 for them to learn from the reference. Communications routines 485 for them to learn from the reference.

串口波特率设置小软件-serial port baud rate set small software

PIC的编程程序范例，分析的比较清晰，能够供初学者学习-programming PIC procedure example, the analysis is relatively clear, for beginners to learn

通过串口控件的串口小程序，发送和接收数据，以及保存数据。-serial control through serial small program to send and receive data, and store data.

通过xml实现各种pda的通信（借助pc）-through xml realize pda communications (using pc)

计算机串口编程类源代码类，供visual c++通讯开发使用。-computer programming class source categories, for the development of visual communications c use.

rs485通信协议的规定，定义了串行通信协议中传输的信息内容及使用格式，可以参考-rs485 communication protocol requirements, defines the serial communication protocol to transmit the information content and the use of format

串口通信的事例FPGA上面可以实现非常实用-FPGA serial communication above examples can be very useful for implementation