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一、前言按查询方式工作的数据采集器,耗费机时,降低了CPU的工作效率。尤其在既要运行BASIC程序,又要同时去采集数据的场合,查询方式是难以胜任的。因此,我们设计并运行了下面介绍的数据采集器。它的特点是: 1)电路比较简单; 2)用Z80-CTC计数定时器去控制采样速率,速率可以灵活选用,其范围十分宽广; 3)按中断方式2工作,提高了CPU的工作效率; 4)数据采集工作与BASIC程序可同时进行(交叉并行)。
First, the preface According to the working way of the data acquisition device, consume machine time, reduce the work efficiency of CPU. Especially in both the operation of the BASIC program, but also to collect data at the same time occasions, the query is difficult to competent. Therefore, we designed and ran the data collector described below. Its features are: 1) the circuit is relatively simple; 2) with the Z80-CTC count timer to control the sampling rate, the rate can be flexibly selected, its scope is very broad; 3) interrupt 2 work, improve the work efficiency of the CPU; 4) Data acquisition and BASIC program can be carried out simultaneously (cross-parallel).