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为使用少量按键实现汉字实时输入与显示功能,设计一种基于单片机的汉字实时输入显控系统。系统采用4×4行列式键盘及液晶显示模块RT12864M,完成单片机对键盘的读取、识别、复键处理、汉字查找及液晶显示等所有程序的编写并通过伟福仿真器调试了所有程序。实践证明该系统结构简单、成本较低、组成灵活、易于扩展,可应用于实时大量输入汉字的显控处理系统中。
To use a small amount of keys to achieve real-time input and display Chinese characters, design a microcontroller-based Chinese characters real-time input display control system. The system uses 4 × 4 matrix keyboard and liquid crystal display module RT12864M to complete all the programs such as reading, recognizing, complex key processing, Chinese character search and liquid crystal display of the singlechip and debugging all programs through Weifu simulator. Practice has proved that the system is simple, low cost, flexible composition, easy to expand, can be applied to a large number of real-time input Chinese characters in the control system.