12864液晶显示函数

1、#include<reg51.h>#include"zifuku.h"#define uchar unsigned char#define uint unsigned intsbit CS1=P23;/LCD右屏幕sbit CS2=P24;/LCD左屏幕sbit RS=P20;/LCD数据、指令寄存器sbit RW=P21;/LCD读、写操作sbit E=P22;/LCD使能信号，下降沿有效/*自定义延时子函数*/void delayms(uchar z) int x,y; for(x=z;x>0;x-) for(y=110;y>0;y-);/* 判

2、断LCD忙信号状态*/void buys() int dat; RW=1; RS=0; do P0=0x00; E=1;dat=P0;E=0;dat=0x80 & dat; while(!(dat=0x00);/* LCD写指令函数*/void w_com(uchar com) buys(); RW=0; RS=0; E=1; P0=com; E=0;/* LCD写数据函数*/void w_date(uchar date) buys(); RW=0; RS=1; E=1; P0=date; E=0;/* LCD选屏函数*/void select_screen(uchar screen)

3、switch(screen) case 0: /选择全屏 CS1=0; CS2=0; break;case 1: /选择左屏 CS1=0; CS2=1; break; case 2: /选择右屏 CS1=1; CS2=0; break;/* case 3: /选择右屏 CS1=1; CS2=1; break;*/ /* LCDx向上滚屏显示*/void lcd_rol()int x;for(x=0;x<64;x+)select_screen(0);w_com(0xc0+x);delayms(500);/* LCD清屏函数：清屏从第一页的第一列开始，总共8页，64列*/void clear

4、_screen(screen) int x,y; select_screen(screen); /screen:0-选择全屏，1-选择左半屏，2-选择右半屏 for(x=0xb8;x<0xc0;x+)/从0xb8-0xbf,共8页 w_com(x);w_com(0x40);/列的初始地址是0x40for(y=0;y<64;y+)w_date(0x00); /*LCD显示汉字字库函数*/void lcd_display_hanzi(uchar screen,uchar page,uchar col,uint mun)/screen:选择屏幕参数，page:选择页参数0-3，col:选

5、择列参数0-3，mun:显示第几个汉字的参数 int a; mun=mun*32; select_screen(screen); w_com(0xb8+(page*2); w_com(0x40+(col*16); for (a=0;a<16;a+) w_date(hanzimun+); w_com(0xb8+(page*2)+1); w_com(0x40+(col*16); for (a=0;a<16;a+) w_date(hanzimun+); /*LCD显示字符字库函数*/void lcd_display_zifuk(uchar screen,uchar page,uchar

6、col,uchar mun)/screen:选择屏幕参数，page:选择页参数0-3，col:选择列参数0-7，mun:显示第几个汉字的参数 int a; mun=mun*16; select_screen(screen); w_com(0xb8+(page*2); w_com(0x40+(col*8); for (a=0;a<8;a+) w_date(zifumun+); w_com(0xb8+(page*2)+1); w_com(0x40+(col*8); for (a=0;a<8;a+) w_date(zifumun+); /*LCD显示数字字库函数*/void lcd_di

7、splay_shuzi(uchar screen,uchar page,uchar col,uchar mun)/screen:选择屏幕参数，page:选择页参数0-3，col:选择列参数0-7，mun:显示第几个汉字的参数 int a; mun=mun*16; select_screen(screen); w_com(0xb8+(page*2); w_com(0x40+(col*8); for (a=0;a<8;a+) w_date(shuzimun+); w_com(0xb8+(page*2)+1); w_com(0x40+(col*8); for (a=0;a<8;a+) w

8、_date(shuzimun+); /*LCD初始化函数*/void lcd_init() w_com(0x3f); /LCD开显示 w_com(0xc0); /LCD行初始地址，共64行 w_com(0xb8); /LCD页初始地址，共8页 w_com(0x40); /LCD列初始地址，共64列/*LCD显示主函数*/void main() /第一行 int x; lcd_init(); /LCD初始化 clear_screen(0); /LCD清屏幕 lcd_display_shuzi(1,0,4,5); /LCD显示数字 lcd_display_shuzi(1,0,5,1); /LCD显

9、示数字 lcd_display_hanzi(1,0,3,0); /LCD显示汉字 lcd_display_hanzi(2,0,0,1); /LCD显示汉字 /LCD字符汉字 lcd_display_hanzi(2,0,1,2); /LCD显示汉字 /第二行 lcd_display_zifuk(1,1,2,0); /LCD显示字符 lcd_display_zifuk(1,1,3,0); /LCD显示字符 lcd_display_zifuk(1,1,4,0); /LCD显示字符 lcd_display_zifuk(1,1,5,4); /LCD显示字符 lcd_display_shuzi(1,1,6

10、,8); /LCD显示字符 lcd_display_shuzi(1,1,7,9); /LCD显示字符 lcd_display_shuzi(2,1,0,5); /LCD显示字符 lcd_display_shuzi(2,1,1,1); /LCD显示字符 lcd_display_zifuk(2,1,2,4); lcd_display_zifuk(2,1,3,1); lcd_display_zifuk(2,1,4,2); lcd_display_zifuk(2,1,5,3); /第三行 for(x=0;x<4;x+) lcd_display_hanzi(1,2,x,3+x); /LCD显示汉字

11、for(x=0;x<4;x+) lcd_display_hanzi(2,2,x,7+x); /LCD显示汉字 /第四行 for(x=0;x<4;x+) lcd_display_zifuk(1,3,x,5+x); /LCD显示汉字 lcd_display_shuzi(1,3,4,7); lcd_display_shuzi(1,3,5,5); lcd_display_shuzi(1,3,6,5); lcd_display_zifuk(1,3,7,9); lcd_display_shuzi(2,3,0,8); lcd_display_shuzi(2,3,1,9); lcd_display_shuzi(2,3,2,9); lcd_display_s