资 源 简 介
附件为：LCD12864显示汉字和数字的程序与电路
/*
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)
{
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_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0x40
for(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(hanzi[mun++]);
}
w_com(0xb8+(page*2)+1);
w_com(0x40+(col*16));
for ( a=0;a<16;a++)
{
w_date(hanzi[mun++]);
}
}
/*
LCD显示字符字库函数
*/
void lcd_display_zifuk(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(zifu[mun++]);
}
w_com(0xb8+(page*2)+1);
w_com(0x40+(col*8));
for ( a=0;a<8;a++)
{
w_date(zifu[mun++]);
}
}
/*
LCD显示数字字库函数
*/
void lcd_display_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(shuzi[mun++]);
}
w_com(0xb8+(page*2)+1);
w_com(0x40+(col*8));
for ( a=0;a<8;a++)
{
w_date(shuzi[mun++]);
}
}
/*
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(1,1,6,8); //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
}
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_shuzi(2,3,3,5);
lcd_display_shuzi(2,3,4,6);
lcd_display_shuzi(2,3,5,8);
lcd_display_shuzi(2,3,6,9);
lcd_display_shuzi(2,3,7,2);
while(1);
/* while(1)
{ // LCD向上滚屏显示
lcd_rol();
}
*/
}
