嵌入式控制系统建立显示字库问题研究

Research on Building Printing Matrix Library for Display in Embedded Control System

在嵌入式控制系统设计中,我们遇到的第一个问题就是人机界面设计,即如何在LCD上显示汉字、西文字符和各种曲线。这涉及到两个问题,一是如何获得汉字、西文字符和各种曲线的显示字模;二是如何在各种STN或TFTLCD上显示这些字模,即LCD显示驱动问题。作者在"嵌入式控制系统人机界面设计引导软件包"中,较好地解决了这两个问题,给出了实用程序,并在实际中得到广泛应用。有了"嵌入式控制系统人机界面设计引导软件包"的支持,嵌入式控制系统设计者可以很容易地解决字模提取和显示驱动问题,轻松完成人机界面设计。"嵌入式控制系统人机界面设计引导软件包"包含两个模块,一个是"通用字模提取"模块,另一个是"LCD显示驱动"模块,此文章介绍第一个模块。

In order to build a very kind human-machine interface, i.e. to display Chinese characters, western characters and all kinds of curves on LCD in embedded control system, we must solve two main problems, i.e. how to get the printing matrix of Chinese characters, western characters, the curves and how to display them on LCDo The author designed a software package-＂Human-Machine Interface Designer Guide Software Package of Embedded Control System＂, which has solved the problems successfully and widely used in practice. Based on this SW package, the user can build vivid and powerful human-machine interface freely in application. This SW package includes two modules, one is ＂Common Printing Matrix Pick-up＂, the other is ＂The Drivers of LCD Display＂. This article will introduce the first one.