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本文根据EP仪的接口功能选用MC 68488作为EP仪与GP-IB之间的接口适配器(GPIA)。根据MC68488的中断与挂钩原理设计了GPIA接口管理子程序。根据仪器功能设计了程控命令的输入和识别子程序等。
This article chooses the MC 68488 as the interface adapter (GPIA) between the EP and GP-IB according to the interface function of EP. According to MC68488 interrupt and hook principle designed GPIA interface management subroutine. According to the function of the instrument, it designed the input and identification subprogram of programmed command.