基于并行口PS/2模式实现微机与单片机通信

Bi-direction communication between monolithic processor and microcomputer based on PS/2 mode

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 fundamental principle of PS/2 mode of microcomputer parallel port and the software handshake techniques are introduced. A new idea of design and realization method of efficient enhanced software handshake relationship is proposed. Communication between monolithic processor and microcomputer with PS/2 mode is implemented at data rate about 15 times of that of serial communication in 115 2 kbit/s. The design method is valuable for the communication between microcomputer and short distance and middle rate peripheral equipments.