這篇文章主要來寫一下12864液晶顯示的程序，至于一些寄存器的設置，和12864液晶的資料介紹，大家可以參看12864液晶的datesheet，上面一般都很全面，一些具體注意事項請大家參看：http://hi.baidu.com/echoas 他的空間里面介紹的比較清楚，我在這里也沒必要浪費時間重復了。
我在這里直接貼出程序，程序注釋比較清楚，相信大家對照dateshee可以看明白。
/************************************
程序功能：無字庫12864液晶的顯示
編譯環境:keil4
運行環境：proteus7.7
整理人：張家越 QQ:435835181
整理時間：2011-04-28
取模軟件使用的是：ZM201
***********************************/
#include<reg52.h>
#define uchar unsigned char
#define uint unsigned int
#define port P0 //DB0~DB7數據口
sbit e=P2^0;//使能
sbit rw=P2^1;//讀寫
sbit rs=P2^2;//數據/命令
sbit cs2=P2^3;//片選
sbit cs1=P2^4;
sbit busy=P0^7;//檢測忙
uchar code hz[][32]={
/*-- 文字: 書 --*/
/*-- 仿宋_GB231212; 此字體下對應的點陣為：寬x高=16x16 --*/
{0x00,0x00,0x00,0x10,0x10,0x10,0xFF,0x88,0x88,0xFA,0x82,0x84,0x8C,0x00,0x00,0x00,
0x00,0x01,0x01,0x01,0x01,0x01,0x7F,0x00,0x00,0x08,0x10,0x0C,0x03,0x00,0x00,0x00},
/*-- 文字: 山 --*/
/*-- 仿宋_GB231212; 此字體下對應的點陣為：寬x高=16x16 --*/
{0x00,0x00,0x00,0xC0,0x00,0x00,0x00,0xFF,0x00,0x00,0x00,0x00,0xE0,0x00,0x00,0x00,
0x00,0x00,0x00,0x3F,0x20,0x20,0x20,0x1F,0x10,0x10,0x10,0x10,0x3F,0x00,0x00,0x00},
/*-- 文字: 有 --*/
/*-- 仿宋_GB231212; 此字體下對應的點陣為：寬x高=16x16 --*/
{0x00,0x10,0x10,0x90,0x50,0xF0,0x4C,0x4B,0x28,0x28,0x28,0xE8,0x08,0x08,0x00,0x00,
0x00,0x02,0x01,0x00,0x00,0x7F,0x0A,0x0A,0x05,0x05,0x20,0x7F,0x00,0x00,0x00,0x00},
/*-- 文字: 路 --*/
/*-- 仿宋_GB231212; 此字體下對應的點陣為：寬x高=16x16 --*/
{0x00,0x00,0x3C,0x24,0xE2,0x9E,0x20,0x18,0x97,0x64,0x54,0x8C,0x00,0x00,0x00,0x00,
0x00,0x10,0x1F,0x08,0x0F,0x04,0x02,0x7D,0x24,0x22,0x12,0x1E,0x01,0x01,0x01,0x00},
/*-- 文字: 勤 --*/
/*-- 仿宋_GB231212; 此字體下對應的點陣為：寬x高=16x16 --*/
{0x00,0x08,0x88,0xBF,0xE4,0x54,0x5F,0xC4,0x44,0xC0,0x3F,0x20,0xE0,0x00,0x00,0x00,
0x00,0x20,0x2B,0x2A,0x1F,0x15,0x55,0x31,0x0C,0x23,0x40,0x30,0x0F,0x00,0x00,0x00},
/*-- 文字: 為 --*/
/*-- 仿宋_GB231212; 此字體下對應的點陣為：寬x高=16x16 --*/
{0x00,0x00,0x00,0x40,0x44,0x58,0xC0,0x38,0x27,0x20,0x20,0xE0,0x00,0x00,0x00,0x00,
0x00,0x40,0x20,0x10,0x08,0x06,0x01,0x10,0x21,0x46,0x30,0x0F,0x00,0x00,0x00,0x00},
/*-- 文字: 徑 --*/
/*-- 仿宋_GB231212; 此字體下對應的點陣為：寬x高=16x16 --*/
{0x00,0x10,0x88,0xC4,0x33,0x40,0x44,0x24,0x22,0x12,0x9A,0xA6,0xA0,0x40,0x00,0x00,
0x02,0x01,0x00,0x7F,0x00,0x20,0x21,0x21,0x21,0x1F,0x10,0x10,0x10,0x10,0x00,0x00},
/*-- 文字: ， --*/
/*-- 仿宋_GB231212; 此字體下對應的點陣為：寬x高=16x16 --*/
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x2C,0x1C,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
/*-- 文字: 學 --*/
/*-- 仿宋_GB231212; 此字體下對應的點陣為：寬x高=16x16 --*/
{0x00,0x60,0x20,0xA0,0xA2,0xAC,0x51,0x56,0xD0,0x5C,0x13,0x10,0x30,0x10,0x00,0x00,
0x00,0x04,0x04,0x04,0x04,0x24,0x44,0x3F,0x02,0x02,0x02,0x02,0x02,0x02,0x00,0x00},
/*-- 文字: 海 --*/
/*-- 仿宋_GB231212; 此字體下對應的點陣為：寬x高=16x16 --*/
{0x20,0x40,0x04,0xC8,0x20,0x10,0xCC,0x4B,0xA8,0x28,0x24,0xE4,0x04,0x00,0x00,0x00,
0x00,0x10,0x3E,0x01,0x02,0x1A,0x17,0x12,0x2E,0x49,0x39,0x0F,0x09,0x01,0x00,0x00},
/*-- 文字: 無 --*/
/*-- 仿宋_GB231212; 此字體下對應的點陣為：寬x高=16x16 --*/
{0x00,0x00,0x40,0x44,0x44,0x44,0xC4,0x3C,0xE2,0x22,0x22,0x22,0x20,0x00,0x00,0x00,
0x00,0x40,0x20,0x10,0x08,0x06,0x01,0x00,0x1F,0x20,0x20,0x20,0x20,0x3C,0x00,0x00},
/*-- 文字: 涯 --*/
/*-- 仿宋_GB231212; 此字體下對應的點陣為：寬x高=16x16 --*/
{0x00,0x20,0x40,0x02,0xC4,0x00,0xFC,0x24,0x24,0xFC,0x92,0x92,0x82,0x00,0x00,0x00,
0x00,0x10,0x3C,0x43,0x30,0x4E,0x41,0x49,0x49,0x3F,0x24,0x24,0x20,0x20,0x00,0x00},
/*-- 文字: 苦 --*/
/*-- 仿宋_GB231212; 此字體下對應的點陣為：寬x高=16x16 --*/
{0x00,0x80,0x88,0x88,0x88,0x9E,0x84,0xE4,0x44,0x5F,0x44,0x44,0x44,0x40,0x00,0x00,
0x00,0x00,0x00,0x00,0x7C,0x44,0x44,0x23,0x22,0x22,0x3E,0x00,0x00,0x00,0x00,0x00},
/*-- 文字: 作 --*/
/*-- 仿宋_GB231212; 此字體下對應的點陣為：寬x高=16x16 --*/
{0x80,0x40,0x20,0xF8,0x07,0x40,0x30,0x1C,0xF3,0x90,0x90,0x48,0x48,0x08,0x00,0x00,
0x00,0x00,0x00,0x7F,0x00,0x00,0x00,0x00,0x7F,0x04,0x04,0x02,0x02,0x02,0x00,0x00},
/*-- 文字: 舟 --*/
/*-- 仿宋_GB231212; 此字體下對應的點陣為：寬x高=16x16 --*/
{0x00,0x00,0x00,0x00,0xF8,0x88,0x8C,0x9B,0xA4,0x84,0xFC,0x40,0x40,0x40,0x00,0x00,
0x01,0x41,0x21,0x19,0x07,0x00,0x02,0x04,0x10,0x20,0x7F,0x00,0x00,0x00,0x00,0x00},
/*-- 文字: 。 --*/
/*-- 仿宋_GB231212; 此字體下對應的點陣為：寬x高=16x16 --*/
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x18,0x24,0x24,0x18,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
{0x02,0xFE,0x92,0x92,0x92,0xFE,0x12,0x11,0x12,0x1C,0xF0,0x18,0x17,0x12,0x10,0x00,
0x08,0x1F,0x08,0x08,0x04,0xFF,0x05,0x81,0x41,0x31,0x0F,0x11,0x21,0xC1,0x41,0x00},
//"聯",14
{0x00,0x00,0x02,0x22,0xB2,0xAA,0x66,0x62,0x22,0x11,0x4D,0x81,0x01,0x01,0x00,0x00,
0x00,0x40,0x21,0x13,0x09,0x05,0x41,0x81,0x7F,0x01,0x05,0x09,0x13,0x62,0x00,0x00},
//"系",15
{0x08,0x08,0x08,0x08,0x08,0x08,0xF9,0x4A,0x4C,0x48,0x48,0xC8,0x08,0x08,0x08,0x00,
0x40,0x40,0x20,0x10,0x0C,0x03,0x00,0x00,0x20,0x40,0x40,0x3F,0x00,0x00,0x00,0x00},
//"方",16
{0x00,0x08,0x88,0x88,0x88,0x88,0x88,0x08,0xFF,0x08,0x09,0x0E,0x0A,0x08,0x00,0x00,
0x00,0x20,0x60,0x30,0x1F,0x10,0x08,0x08,0x00,0x07,0x18,0x20,0x40,0x80,0x70,0x00},
//"式",17
};
uchar code num[][16]={
{0x00,0xE0,0x10,0x08,0x08,0x10,0xE0,0x00,0x00,0x0F,0x10,0x20,0x20,0x10,0x0F,0x00},
//"0",0
{0x00,0x10,0x10,0xF8,0x00,0x00,0x00,0x00,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00},
//"1",1
{0x00,0x70,0x08,0x08,0x08,0x88,0x70,0x00,0x00,0x30,0x28,0x24,0x22,0x21,0x30,0x00},
//"2",2
{0x00,0x30,0x08,0x88,0x88,0x48,0x30,0x00,0x00,0x18,0x20,0x20,0x20,0x11,0x0E,0x00},
//"3",3
{0x00,0x00,0xC0,0x20,0x10,0xF8,0x00,0x00,0x00,0x07,0x04,0x24,0x24,0x3F,0x24,0x00},
//"4",4
{0x00,0xF8,0x08,0x88,0x88,0x08,0x08,0x00,0x00,0x19,0x21,0x20,0x20,0x11,0x0E,0x00},
//"5",5
{0x00,0xE0,0x10,0x88,0x88,0x18,0x00,0x00,0x00,0x0F,0x11,0x20,0x20,0x11,0x0E,0x00},
//"6",6
{0x00,0x38,0x08,0x08,0xC8,0x38,0x08,0x00,0x00,0x00,0x00,0x3F,0x00,0x00,0x00,0x00},
//"7",7
{0x00,0x70,0x88,0x08,0x08,0x88,0x70,0x00,0x00,0x1C,0x22,0x21,0x21,0x22,0x1C,0x00},
//"8",8
{0x00,0xE0,0x10,0x08,0x08,0x10,0xE0,0x00,0x00,0x00,0x31,0x22,0x22,0x11,0x0F,0x00} //"9",9
};
uchar code sign[][16]={
{0x00,0x00,0x00,0xF8,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x33,0x30,0x00,0x00,0x00},
//"!",0
{0x00,0x00,0x00,0xC0,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x30,0x30,0x00,0x00,0x00},
//":",1
{0xE0,0x10,0x08,0x08,0x08,0x10,0xE0,0x00,0x0F,0x18,0x24,0x24,0x38,0x50,0x4F,0x00}
//"Q",2
};
//延時
void delay(uint n)
{
uint i;
for(;n>0;n--)
for(i=200;i>0;i--);
}
//判斷是否忙
void check()
{
rs=0;
rw=1; //讀 e=1；
port=0x00;
e=1;
while(busy);
e=0;
}
//寫指令
void sendcommand(uchar command)
{
check();
rs=0; //指令
rw=0; //寫 e=0；
port=command;
e=1;
e=0; //寫入指令
}
//寫數據
void writedata(uchar dat)
{
check();
rs=1; //數據
rw=0;
port=dat;
e=1;
e=0;
}
//選屏幕 0--全屏，1--左屏，2--右屏；
void select(uint n)
{
switch(n)
{
case 0:cs1=0;cs2=0;break; //低電平選中
case 1:cs1=0;cs2=1;break; //cs1左屏
case 2:cs1=1;cs2=0;break; //cs2右屏
}
}
//頁
void setpage(uchar page)
{
page=page&0x07;
page=page|0xb8;
sendcommand(page);
}
//列
void setcolumn(uchar column)
{
column=column&0x3f;
column=column|0x40;
sendcommand(column);
}
//起始行
void setline(uchar line)
{
line=line&0x3f;
line=line|0xc0;
sendcommand(line);
}
//屏幕開關顯示 0--關，1--開；
void seton(uint n)
{
n=n|0x3e;
sendcommand(n);
}
//清屏 0--全屏，1--左屏，2--右屏；
void clear(uint n)
{
uchar i,j;
select(n);
for(i=0;i<8;i++)
{
setpage(i);
setcolumn(0);
for(j=0;j<64;j++)
writedata(0); //置0清空
}
}
//初始化
void init(uchar i)
{
check();
seton(1);
select(0);
//clear(0);
setline(i);
}
//顯示漢字 16*16顯示
void show16(uchar page,uchar column,uchar screen,uchar method,uchar *str) //頁，列，
{
uchar i,j;
select(screen);
j=0;
setpage(page);
setcolumn(column);
for(i=0;i<16;i++)
{ if(method==1) writedata(~str[j++]); //method為顯示方式。當等于1時，反白。
else writedata(str[j++]);
}
setpage(page+1);
setcolumn(column);
for(i=0;i<16;i++)
{ if(method==1) writedata(~str[j++]);
else writedata(str[j++]);
}
}
//顯示數字 8*16顯示
void show8(uchar page,uchar column,uchar screen,uchar method,uchar *str)
{
uchar i,j;
select(screen);j=0;
setpage(page);
setcolumn(column);
for(i=0;i<8;i++)
{ if(method==1) writedata(~str[j++]);
else writedata(str[j++]);
}
setpage(page+1);
setcolumn(column);
for(i=0;i<8;i++)
{ if(method==1) writedata(~str[j++]);
else writedata(str[j++]);
}
}
void welcome()
{
uint i=0,j;
for(j=0;j<3;j++,j++)
for(i=0;i<4;i++)
{ show16(j,16*i,1,0,hz[i+j*4]); //寫左屏數據
// if(i+4+j*4<16)
show16(j,16*i,2,0,hz[i+4+j*4]); //寫右屏數據
}
// show8(2,32,2,0,sign[0]); //!
for(i=0;i<4;i++)
{
show16(4,16*i,1,0,hz[16+i]);
}
show8(4,0,2,0,sign[1]); //:
show8(6,0,1,0,sign[2]); //Q
show8(6,8,1,0,sign[2]); //Q
show8(6,16,1,0,sign[1]); //:
//以下數字均為反白顯示。
show8(6,32,1,1,num[4]); //4
show8(6,40,1,1,num[3]); //3
show8(6,48,1,1,num[5]); //5
show8(6,56,1,1,num[8]); //8
show8(6,0,2,1,num[3]); //3
show8(6,8,2,1,num[5]); //5
show8(6,16,2,1,num[1]); //1
show8(6,24,2,1,num[8]); //8
show8(6,32,2,1,num[1]); //1
}
void main()
{
uchar j;
clear(0);
while(1)
{
for(j=0;j<63;)
{
j=j+16;
if(j>60)
j=0;
init(j);
// delay(200);
welcome();
delay(500);
}
}
}
由于本人水平有限，難免有錯誤和不妥之處，希望大家批評指正。