一种RS-485和GPIB双向转换接口的设计与实现  

Design and Implementation of Bidirectional RS-485 and GPIB Conversion Interface

作　　者：李军骑[1] 张天民[1] 马飞[2] 

机构地区：[1]中国人民解放军91404部队 [2]西安电子科技大学

出　　处：《信息化研究》2010年第1期38-40,44,共4页INFORMATIZATION RESEARCH

摘　　要：文中提出一种用RS-485串行接口总线和GPIB并行接口总线实现双向通信的方案,该方案是以单片机W77E58为主控器,以uPD7210作为GPIB总线接口驱动芯片,以SN75176作为RS-485串行接口芯片来设计的。首先简要介绍了RS-485和GPIB两种通信总线的特点及应用,然后主要讨论了转换接口的硬件电路原理和软件框图设计。This paper presents a concept to carry out bidirectional communication between serial interface RS-485 and parallel interface GPIB. This concept uses single chip computer W77E58 as the main controller, uPD7210 as GPIB interface drive chip, SN75176 as RS-485 serial interface conversion chip. First, it intro- duces the characteristics and application of RS-485 and GPIB bus. Then, it mainly deals with the schematic diagram and software flow diagrams of the system.

关 键 词：GPIB RS-485 转换接口 双向通信 

分 类 号：TN334.7[电子电信—物理电子学]