基于单片机的开关阵列状态识别

The Recognition of the Switch Arrays State Based on the Single Chip Microcomputer

介绍了单片机系统中键盘重键的识别和处理,论述了利用高阻态输出封锁非扫描行(列)方法建立的电路模型,阐述了单片机系统的硬件接口及原理,探讨了系统与上位机的通信和系统软件的实现。

This paper introduces the recognition and treatment of the heavy keys on the keyboard in the single chip microcomputer system, discusses on the circuit model established by using the method of blocking non-scan row（column） with the high resistance output, expounds the hardware interface and principle of the single chip microcomputer system, and probes into the communication between the system and its master machine and the implementation of the system software.