图形点阵液晶模块的中文菜单界面的实现

Realization of Chinese menu interface based on graphic dot matrix LCD

研究了基于DEM12864P图形点阵液晶模块实现中文菜单人机界面的问题。首先分析了液晶模块DEM12864P的特性,阐述了DDRAM寻址与液晶点阵的对应关系及中文字符、中文菜单在液晶模块上的显示规则,进而介绍了一种基于多任务背景的屏幕光标实现方法及菜单数据结构的设计,提出了相应软件设计的实现方法.

The problem of how to realize the man-machine interface of Chinese menu based on the graphic dot matrix LCD (DEM12864P) is studied. The characteristics of LCD model (DEM12864P) are first analyzed. The relation of the DD RAM addressing and LCD dot matrix is explained, so are the display rules of Chinese characters and Chinese menu on the LCD model. Then the design of the cursor realization method and menu data structure based on the multi-task background is introduced; meanwhile the realization method of the design of the correlative software is also proposed.