西南石油大学学报(自然科学版) ›› 1997, Vol. 19 ›› Issue (1): 96-98.DOI: 10.3863/j.issn.1000-2634.1997.01.020

• 计算机应用、管理科学 • 上一篇    下一篇

利用PC机并行打印端口实现数据采集

李建1 徐壁华2 黎明1 顾亚雄3

  

  1. 1.计算机科学系;2.石油工程系;3.基础学科部
  • 收稿日期:1996-03-11 修回日期:1900-01-01 出版日期:1997-02-20 发布日期:1997-02-20

A Data Acquisition System Implemented with PC Parallel Port

Li Jian
  

  1. Dept. of Computer Science, SWPI, Sichuan, 637001
  • Received:1996-03-11 Revised:1900-01-01 Online:1997-02-20 Published:1997-02-20

摘要: 利用IBM-PC机并行打印端口通过软硬件方法实现数据采集,硬件结构以“AD754A”12
位ADC和8255A-5并行接口芯片为主,软件通过“查询方法”实现数据采集。本系统在不打开
主机箱情况下,可与不同品牌的计算机相联,特别适合于便携式计算机。

关键词: 接口, A/D转换器, 数据采集, 并行打印端口

Abstract: A data acquisition system is presented in this paper on the basis of PC parallel port through software and hardware. The hardware mainly includes AD 574A 12 bit ADC and 8255A Prallel interface chips. As for the software, data needed can be acquired by means of“Polling”. Without opening the box of main frame, this system can be linked to a variety of computers, especially portable ones.

Key words: PC Parallel Port, A/D converter, Data acquisition

中图分类号: