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论述了微机并行口 PS/ 2模式的工作原理 ,阐述了软件握手关系 ,提出了一种高效的增强软件握手关系的设想及其实现方法 ,实现了单片机与微机并行口 PS/ 2模式的通信 ,数据传送速率大约是串行通信 (1 1 5.2 kbit/ s)速率的 1 5倍 ,该设计方法对微机与近距离中速外围设备的通信有一定的参考价值。
The working principle of parallel port PS / 2 mode is discussed. The software handshake relationship is expatiated. An efficient concept of enhancing the software handshake relationship and its implementation are put forward. The parallel port PS / 2 mode communication between MCU and microcomputer is realized, The data transfer rate is about 15 times higher than that of serial communication (115kbit / s). This design method has certain reference value for the communication between the microcomputer and the near-field medium-speed peripherals.