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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。
This article provides an inexpensive microcomputer debug card for the Apple II microcomputer, which fully utilizes the resources of the microcomputer system and realizes the main memory sharing and parallel operation of the single chip microcomputer and the 6502 CPU by using the DMA communication technology.