PC104系统LON总线接口的设计

Design of LON Network Interface Used in PC104 System Based on DPRAM

LON总线是一种应用日益广泛的现场总线。为了使工业计算机系统方便地接入LON网络,文章介绍了采用双口RAM作为数据通信桥梁的PC104系统LON总线接口电路的设计,并给出了详细的硬件电路和软件设计流程。

LON field bus is broadly used. This article describes the development of LON interface used in PC104 system based on host processor. This interface makes the PC104 system used in industrial control system connect to the LON network conveniently. The interface uses the dual port RAM which performs the communication between two CPUs. Also, the article gives the circuit and the program flow chart.