西南石油大学学报(自然科学版) ›› 1990, Vol. 12 ›› Issue (4): 104-108.DOI: 10.3863/j.issn.1000-2634.1990.04.013

• 论文 • 上一篇    下一篇

Apple Ⅱ DMA共享存贮单片机调试卡

陈伟 孟东升
  

  1. 管理工程系
  • 收稿日期:1990-01-12 修回日期:1900-01-01 出版日期:1990-11-20 发布日期:1990-11-20

A SCM DEBUGGING CARD OF APPLE Ⅱ DMA SHARING MEMORY

Chen wei Meng Dong-sheng
  

  1. Dept. of Management Engineering
  • Received:1990-01-12 Revised:1900-01-01 Online:1990-11-20 Published:1990-11-20

摘要:

本文为Apple Ⅱ微型计算机提供了一种廉价的单片机调试卡,该卡充分地利用了微机系统的资源,采用DMA通讯技术实现了主存共享及单片机与6502CPU的并行运行。

关键词: AppleⅡ微型计算机, 单片机, 调试卡

Abstract:

A cheap single component microcomputer(SCM)debugging card for Apple Ⅱ microcomputer is provided by this paper. The card makes full use of the system resources of microcomputer. The communication technique of DMA is adopted to achieve sharing main memory and parallel operation between SCM and 6502 CPU.

Key words: Apple Ⅱ microcomputer, Single component microcomputer, Debugging card