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AM-1000十六位微计算机系统(美国ALPHA公司的产品)和其他台式微型计算机一样,具有结构紧凑,单机运算处理功能较强,价格便宜等优点。但是,由于该机在硬件结构上缺乏高速数据采集通道和面向用户的实时钟,当用于过程控制或高速数据采集等场合时有一定的困难。笔者通过对该机性能的研究,在开发该机的硬件接口功能方面做了一些尝试,开发出具有并行数据通道和实时钟的控制型接口,可以方便地与受控对象进行联接。下面,就在AM-1000基本系统的基础上开发控制型接口的问题作一扼要的介绍。
AM-1000 16-bit microcomputer system (ALPHA, USA) is the same as other desktop microcomputers. It has the advantages of compact structure, powerful single-processor operation and low price. However, due to the lack of high-speed data acquisition channels and user-oriented real-time clocks in the hardware structure, the aircraft has some difficulties in applications such as process control or high-speed data acquisition. Through the study of the performance of the aircraft, the author made some attempts to develop the hardware interface function of the aircraft and developed a control interface with parallel data channels and real-time clock, which can be easily connected with the controlled object. The following, on the basis of AM-1000 basic system development control interface for a brief introduction.