/*
?自定義延時子函數
*/
void delayms(uchar z)
{
? int x,y;
? for(x=z;x>0;x--)
???? for(y=110;y>0;y--);
}

/*
???? 判斷LCD忙信號狀態
*/
void buys()
{
? int dat;
? RW=1;
? RS=0;
? do
??? {?
???????? P0=0x00;
???????? E=1;
???dat=P0;
???E=0;
???dat=0x80 & dat;
??} while(!(dat==0x00));
}

/*
???? LCD寫指令函數
*/
void w_com(uchar com)
{
? //buys();
? RW=0;
? RS=0;
? E=1;
? P0=com;
? E=0;
}

?/*
???? LCD寫數據函數
*/
void w_date(uchar date)
{
? //buys();
? RW=0;
? RS=1;
? E=1;
? P0=date;
? E=0;
}

/*
??? LCD選屏函數
*/
void select_screen(uchar screen)
{
??? switch(screen)
??? {
??? ??? case 0:???? //選擇全屏
??????????????? CS1=0;
?????? CS2=0;
??? ????? break;
???? case 1:???? //選擇左屏
??????????????? CS1=0;
?????? CS2=1;
??? ????? break;
?????????????
??? ??? ?? case 2:???? //選擇右屏
??????????????? CS1=1;
?????? CS2=0;
??? ????? break;
???/*? case 3:???? //選擇右屏
??????????????? CS1=1;
???????? CS2=1;
??? ????????? break;
???*/
??? }??? ??
???
}

/*
? LCDx向上滾屏顯示
*/
void lcd_rol()
{
??? int x;
??? for(x=0;x<64;x++)
?????? {
??? ??select_screen(0);
????w_com(0xc0+x);
??? ??delayms(500);
??? }

}

/*
??? LCD清屏函數：清屏從第一頁的第一列開始，總共8頁，64列
*/
void clear_screen(screen)
{
? int x,y;
? select_screen(screen);???? //screen:0-選擇全屏，1-選擇左半屏，2-選擇右半屏
? for(x=0xb8;x<0xc0;x++)???//從0xb8-0xbf,共8頁
???? {
???w_com(x);
???w_com(0x40);???//列的初始地址是0x40
???for(y=0;y<64;y++)
????? {
????? ???? w_date(0x00);
?????
?????? }
????? }???
}

/*
??LCD顯示漢字字庫函數
*/
void lcd_display_hanzi(uchar screen,uchar page,uchar col,uint mun)
{??//screen:選擇屏幕參數，page:選擇頁參數0-3，col:選擇列參數0-3，mun:顯示第幾個漢字的參數
????? 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顯示字符字庫函數
*/
void lcd_display_zifuk(uchar screen,uchar page,uchar col,uchar mun)
{??//screen:選擇屏幕參數，page:選擇頁參數0-3，col:選擇列參數0-7，mun:顯示第幾個漢字的參數
????? 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顯示數字字庫函數
*/
void lcd_display_shuzi(uchar screen,uchar page,uchar col,uchar mun)
{??//screen:選擇屏幕參數，page:選擇頁參數0-3，col:選擇列參數0-7，mun:顯示第幾個漢字的參數
????? 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初始化函數
*/
void lcd_init()
{
? w_com(0x3f);?? //LCD開顯示
? w_com(0xc0);?? //LCD行初始地址，共64行
? w_com(0xb8);?? //LCD頁初始地址，共8頁
? w_com(0x40);?? //LCD列初始地址，共64列
???
}

/*
??LCD顯示主函數
*/
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顯示數字
?? lcd_display_shuzi(1,0,5,1);??? //LCD顯示數字
????? lcd_display_hanzi(1,0,3,0);??? //LCD顯示漢字
?? lcd_display_hanzi(2,0,0,1);??? //LCD顯示漢字??? //LCD字符漢字
?? lcd_display_hanzi(2,0,1,2);??? //LCD顯示漢字
? //第二行?
?? lcd_display_zifuk(1,1,2,0);??? //LCD顯示字符
?? lcd_display_zifuk(1,1,3,0);??? //LCD顯示字符
?? lcd_display_zifuk(1,1,4,0);??? //LCD顯示字符
?? lcd_display_zifuk(1,1,5,4);??? //LCD顯示字符
?? lcd_display_shuzi(1,1,6,8);??? //LCD顯示字符
?? lcd_display_shuzi(1,1,7,9);??? //LCD顯示字符
?? lcd_display_shuzi(2,1,0,5);??? //LCD顯示字符
?? lcd_display_shuzi(2,1,1,1);??? //LCD顯示字符
?? 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顯示漢字
?? }
?
?? for(x=0;x<4;x++)
????? {
?? ? lcd_display_hanzi(2,2,x,7+x);??? //LCD顯示漢字
?? }
? //第四行

??? for(x=0;x<4;x++)
????? {
?? ? lcd_display_zifuk(1,3,x,5+x);??? //LCD顯示漢字
?? }
??? 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向上滾屏顯示
??? ?? lcd_rol();
??? }
?? */
}