A single chip computer directly carries out a two machine communication program; because when the interrupt occurs, the receiving interruption occurs. The interrupts are all 4, and they all go into the interrupt subroutine, and this is a very clever solution to the problem by if (RI===1). In other words, only after the interrupt is received will the program within the if be executed.

Filename	Size	Update
双机通讯
双机通讯\乙机.doc	9216	2013-06-19
双机通讯\甲机.doc	17920	2013-06-19

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