一种多总线通讯系统的实现

Realization of A MultiBus Communication System

首先讨论了多总线通讯系统的主从式网络构建方法和通讯MBI的功能;其次给出了多总线通讯系统中总线利用率和总线负载的计算方法以及在系统中时基的应用方法。在此基础上,论述了基于ADSP21060,结合1553B总线和RS-422总线的多总线通讯系统的实现,具体包括硬件接口设计和通讯软件的实现。实验表明,多总线通讯系统适用于外部总线负载小于70%,内部总线负载小于40%的通讯系统,具有普遍意义。

At first, the construction of c/s Web and communication MBI based on multibus are discussed, then the bus availability ratio and bus load is calculated, as well as the application of time basis. Last, combining 1553B bus and RS-422 bus, moltibus system that based on ADSP21060 is carried out, including hardware interface desiging and communication software designing. The construction of the multiply bus communication, mentioned in this paper, is applied to the system that external bus load less than 70% and internal bus load less than 40%.