这是一个西门子 ModBus 协议的通讯调试软件。（原码）

USB转串口的一个例子（源代码），可以在ＫＥＩＡＬ下直接编译。-USB to serial port of an example (source code)

VC串口编程，利用串口将pc和单片机进行通信.-VC serial programming, the use of the pc and the single-chip serial communication.

串口通信，写成dll便于参阅-serial communication, written dll ease of reference

利用MSComm进行pc串口编程。好用-MSComm to pc using serial programming. Easy to use. . . .

空调数据多线程采集，包含多线程的使用，数据库操作，空调数据采集等功能-air-conditioned multi-threaded data collection, including the use of multi-threaded database operations, such as air-conditioning function data acquisition

这是利用VB编写的一个通信协议程序，能实现通讯测试功能-This is the use of VB to prepare a communication protocol process, to achieve functional communication test

利用新型单片机c8051f020进行的编程，该单片片机具有很高的性价比。-new SCM C8051f020 use the program, the single pieces of the machine has a price.

串口ROM编程,内部包括了I2C总线的许多内容,启动总线,结束总线-Serial ROM programming, including the internal I2C Bus many elements, initiated bus, the end of bus

modbus rtu 通讯 使用spcomm控件-modbus rtu protocl use spcomm activX

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.