ST7920与MSP430汉字显示的方法与技巧

Technique and method of display of Chinese characters with ST7920 and MSP430

介绍了以ST7920为驱动控制器的液晶模块HS12864-15B,以及该模块在使用时需要注意的问题,给出了其与MSP430的接口电路。进而以MSP430单片机为基础,讲述了控制液晶显示汉字的C程序设计方法,探讨了该液晶模块使用中的技巧。最后重点解决了一屏多行汉字显示的实现方法和翻页显示函数的实现问题,即通过定义一个行列与DDRAM地址对应的数组,大大简化了一屏多行显示函数的实现;通过显示页数计算公式将多页显示分为首页、中间页和末页,使得翻页显示函数简单易行。

This paper introduces LCD module HS12864-15B driven by ST7920 controller,discusses the problems in detail that deserve more attention in the use of the module and deals with the interface circuit with MSP430 MCU.And then the paper makes study of C programming method and some skills in using the LCD with MSP430.Finally,this paper focuses on a multi-line screen display of Chinese characters and the implementation of the Chinese scrolling display,that is,defines an array corresponding with DDRAM address.This m...