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...

好东东，用C写的，USB接口程序，很好用-Dongdong good with C wrote, USB interface program, a very good use

DOS串口终端程序( 本软件为在DOS下使用超级终端的用户专门设计 功能说明： 1.DOS下使用，功能类似于WINDOWS的超级终端 2.支持COM1，COM2 3.支持波特率2400,4800,9600（缺省）,19200,38400,57600,115200 4.支持Xmodem文件传输协议,,Asm,Com Port -DOS serial terminal program (the DOS software for use in super user terminals designed Description : 1.DOS use, function similar to the Super Windows Terminal 2. support COM1, COM2 3. 2400,4800,9600 support baud rate (default), 19200, 38400,57600,115200 4. support Xmodem file transfer protocol, and programmers. Com Port

USART的驱动程序，在C++编译环境下，进攻学习参考-USART the driver, in the C compiler environment, learning offensive reference

windows CE下的串口调试助手, 对做串口相关程序的工程师有用-debug serial port for windows ce

dos 下的串口编程源代码，可使用中断-dos under the serial programming source code can be used interruption

《PC数据采集》源代码-"PC Data Acquisition" source code

本代码是VC源代码，实现通过串口接收和发送短消息。-VC code is the source code to achieve through the serial port to receive and send short message.

VB串口控件属性 之关于使用 VB 与单片机通信-VB serial control attribute on the use of VB with the single-chip communication

VC异步通讯串口类-VC asynchronous serial communications category

详细介绍了使用VB编制串口通信程序，其中包含循环冗余校验CRC代码段-Described in detail the preparation of the use of VB serial communication program, which includes cyclic redundancy check CRC code segment