基于80C51和GXM12864的液晶显示原理图+C语言源代码.doc

1.系统原理图2.C语言源程序/*头文件*/*/* Copyright (c) 2005, 通信工程学院 */* All rights reserved. */* /* 作 者：戴佳 */*/#ifndef_LCD_SHOW_H / 防止lcd_show.h被重复引用#define_LCD_SHOW_H#include #include unsigned char code QING32=/* 请 */0x20,0x22,0xEC,0x00,0x20,0x22,0xAA,0xAA,0xAA,0xBF,0xAA,0xAA,0xEB,0xA2,0x20,0x00,0x00,0x00,0x7F,0x20,0x10,0x00,0xFF,0x0A,0x0A,0x0A,0x4A,0x8A,0x7F,0x00,0x00,0x00;unsigned char code CHA32=/* 插 */0x10,0x10,0x10,0xFF,0x90,0x24,0x24,0xA4,0x24,0xFC,0x22,0x23,0x22,0xB0,0x20,0x00,0x02,0x42,0x81,0x7F,0x00,0xFF,0x49,0x48,0x40,0x7F,0x40,0x49,0x49,0xFF,0x01,0x00;unsigned char code KA32=/* 卡 */0x40,0x40,0x40,0x40,0x40,0x40,0xFF,0x44,0x44,0x44,0x46,0x44,0x40,0x60,0x40,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFF,0x00,0x02,0x04,0x0C,0x18,0x00,0x00,0x00,0x00;#define LCD XBYTE0xffff /* LCD端口 */#endif/*C文件*/#include lcd_show.h#define uint unsigned int#define uchar unsigned char#define CSA P2_1#define CSB P2_0#define E P2_3#define RW P2_5#define DI P2_6sbit busy_bit=ACC7;/lcd state byte bit 7/*下面是对液晶屏gxm12864d操作的函数, 128x64点阵，汉字显示，CSA,CSB用来进行左右显示区的选择。*/* 发命令i到主窗口*/void lcd_mwc(uchar i) CSA=1; CSB=0; RW=1; DI=0; do ACC=LCD; while (busy_bit) ;/wait for lcd not busy RW=0; LCD=i;/* 写数据i到主窗口*/void lcd_mwd(uchar i) CSA=1; CSB=0; RW=1; DI=0; do ACC=LCD; while (busy_bit);/wait for lcd not busy RW=0; DI=1; LCD=i;/* 清屏 */void lcd_clear(void) uchar i; uchar page; for (page=0xb8;page0xc0;page+) lcd_mwc(page); /*设置显示页面*/ lcd_mwc(0x40); /*设置列地址*/ for (i=0;i64;i+) lcd_mwd(0); /初始化lcdvoid lcd_init(void)lcd_mwc(0xc0);lcd_mwc(0x3f);/dispm_hz_up() display up half of a hanzi in left areavoid dispm_hz_up(uchar code * hz)uchar i;for (i=0;i16;i+) lcd_mwd(*(hz+i);/dispm_hz_down() display down half of a hanzi in left areavoid dispm_hz_down(uchar code * hz)uchar i;for (i=16;i32;i+) lcd_mwd(*(hz+i);void main(void)E=1;lcd_clear();lcd_init();lcd_mwc(0xb8);lcd_mwc(0x40);dispm_hz_up(&QING);dispm_hz_up(&CHA);dispm_hz_up(&KA);