在Windows下PC机作为半双工RS-485网络主机通信程序的设计

Designing of a communication program with PC as a master in the half-duplex RS485 Netware in Windows

描述了一个以PC机作为半双工RS-485网络主机,工作于Windows平台上的通讯程序。该程序特点是通过使用异步通信WIN32API和多线程及多种同步量来实现半双工通信方式。

The paper describes a communication program in Windows, with PC as a master in the half-duplex RS-485 Netware. A distinctive feature of the program is : overlapped communication Win32 API, multithread and synchronizations are applied to realize half-duplex communication in the program.