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利用 8 0C552全双工串行口SIO0 ,通过电平变化可以把它与目前最常用的RS— 2 32进行接口 ,利用此接口可以使由 80C552为中央处理器的便携式仪器或智能仪器具有数据回放功能和网络数据传送功能。文章介绍了80C552与 586微机的RS— 2 32C串行通信接口的硬件接口方法和实用的通信程序。其中 586的通信程序是用BA SIC语言编写 ,可移植性好 ,通用性强。 80C552的通信程序由汇编语言编写 ,程序执行速度快。两部分程序多次运行传送数据都准确无误 ,具有很强的实用价值。
Using 8 0C552 full-duplex serial port SIO0, through the level change can be the most commonly used RS-2 32 interface, the use of this interface can make the 80C552 as a central processor portable instrument or smart instrument with data playback Function and network data transfer function. This article introduces the hardware interface method and practical communication program of RS-2 32C serial communication interface of 80C552 and 586 microcomputer. One of the 586 communication procedures is written in BA SIC language, portability, versatility. 80C552 communication program written in assembly language, program execution speed. Two-part program to run multiple transmission data are accurate, with strong practical value.