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一、前言本文介绍使用廉价的苹果Ⅱ微计算机的自动化装置。步进马达的开动和停止,数据的采集和数据储入软磁盘,都完全由微计算机控制,自动化过程有以下几个特点:(1)A/D转换由实验条件启动,不是由软件启动。(2)转换工作与CPU本身工作同时分头进行,A/D转换并不占CPU时间,输送和储存数据的子程序由NMI召唤,
I. Introduction This article describes the use of cheap Apple II microcomputer automation device. Stepper motor start and stop, data collection and data storage in the floppy disk, are completely controlled by the microcomputer, the automation process has the following characteristics: (1) A / D conversion started by the experimental conditions, not by software. (2) the conversion work and CPU work separately at the same time, A / D conversion does not account for CPU time, transfer and store data subroutine summoned by NMI,