📄 12864.c
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#include <intrins.h>//含有nop（）
#include <reg51.h>
// LCD128*64 数据线
#define LCD12864DataPort P1
#define uchar unsigned char
#define uint unsigned char
// LCD128*64 I/O 信号管脚
sbit di = P2^0; // 数据\指令 选择
sbit rw = P2^2; // 读\写 选择
sbit en = P2^1; // 读\写使能
sbit cs1= P2^3; // 片选1,低有效(前64列)
sbit cs2= P2^4; // 片选2,低有效(后64列)
uchar code Numcode[11][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*/
{0x00,0x00,0x00,0xC0,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x30,0x30,0x00,0x00,0x00}
};
uchar code HZcode[6][32]=
{
{0x00,0x10,0x92,0x92,0x92,0x92,0x92,0x92,0x92,0x92,0x12,0x02,0x02,0xFE,0x00,0x00,0x00,0x00,0x1F,0x04,0x04,0x04,0x04,0x04,0x04,0x0F,0x00,0x20,0x40,0x3F,0x00,0x00},/*"年",0*/
{0x00,0x00,0x00,0x00,0x00,0xFF,0x11,0x11,0x11,0x11,0x11,0xFF,0x00,0x00,0x00,0x00,0x00,0x40,0x20,0x10,0x0C,0x03,0x01,0x01,0x01,0x21,0x41,0x3F,0x00,0x00,0x00,0x00},/*"月",1*/
{0x00,0x00,0x00,0xFE,0x42,0x42,0x42,0x42,0x42,0x42,0x42,0xFE,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x3F,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x3F,0x00,0x00,0x00,0x00},/*"日",2*/
{0x00,0xFC,0x44,0x44,0x44,0xFC,0x10,0x90,0x10,0x10,0x10,0xFF,0x10,0x10,0x10,0x00,0x00,0x07,0x04,0x04,0x04,0x07,0x00,0x00,0x03,0x40,0x80,0x7F,0x00,0x00,0x00,0x00},/*"时",3*/
{0x80,0x40,0x20,0x98,0x87,0x82,0x80,0x80,0x83,0x84,0x98,0x30,0x60,0xC0,0x40,0x00,0x00,0x80,0x40,0x20,0x10,0x0F,0x00,0x00,0x20,0x40,0x3F,0x00,0x00,0x00,0x00,0x00},/*"分",4*/
{0x12,0x12,0xD2,0xFE,0x91,0x11,0xC0,0x38,0x10,0x00,0xFF,0x00,0x08,0x10,0x60,0x00,0x04,0x03,0x00,0xFF,0x00,0x83,0x80,0x40,0x40,0x20,0x23,0x10,0x08,0x04,0x03,0x00}
};
void nop(void)
{
_nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_();
}
//状态检查
void CheckState(void)
{
uchar dat;
dat = 0x00;
di=0;
rw=1;
/* do
{
P1=0xff;
en=1;
dat=P1;
en=0;
dat&=0x80; //仅当第7位为0时才可操作
}while(dat);*/
}
//写显示数据
//dat:显示数据
void WriteByte(uchar dat)
{
CheckState();
di=1;
rw=0;
LCD12864DataPort=dat;
en=1;
en=0;
}
/*-----------------------------------------------------------------------------------------------------*/
//向LCD发送命令
//command :命令
SendCommandToLCD(uchar command)
{
CheckState();
rw=0;
di=0;
LCD12864DataPort=command;
en=1;
en=0;
}
/*----------------------------------------------------------------------------------------------------*/
//设定行地址(页)--X 0-7
void SetLine(uchar line)
{
line &= 0x07; // 0<=line<=7
line |= 0xb8; //1011 1xxx
SendCommandToLCD(line);
}
//设定列地址--Y 0-63
void SetColumn(uchar column)
{
column &= 0x3f; // 0=<column<=63
column |= 0x40; //01xx xxxx
SendCommandToLCD(column);
}
//设定显示开始行--XX
void SetStartLine(uchar startline) //0--63
{
//startline &= 0x07;
startline |= 0xc0; //1100 0000
SendCommandToLCD(startline);
}
//开关显示
void SetOnOff(uchar onoff)
{
onoff|=0x3e; //0011 111x
SendCommandToLCD(onoff);
}
/*---------------------------------------------------------------------------------------------------*/
//选择屏幕
//screen: 0-全屏,1-左屏,2-右屏
void SelectScreen(uchar screen)
{ //北京显示器:负有效 cs1: 0--右; cs2: 0--左
switch(screen)
{
case 0:
cs1=0;//全屏
nop();
cs2=0;
nop();
break;
case 1:
cs1=1;//左屏
nop();
cs2=0;
nop();
break;
case 2:
cs1=0;//右屏
nop();
cs2=1;
nop();
break;
default:
break;
}
}
/*---------------------------------------------------------------------------------------------------*/
//清屏
//screen: 0-全屏,1-左屏,2-右
void ClearScreen(uchar screen)
{
uchar i,j;
SelectScreen(screen);
for(i=0;i<8;i++)
{
SetLine(i);
for(j=0;j<64;j++)
{
WriteByte(0x00);
}
}
}
/*--------------------------------------------------------------------------------------------------*/
//显示8*8点阵
//lin:行(0-7), column: 列(0-127)
//address : 字模区首地址
void Show8x8(uchar lin,uchar column,uchar *address)
{
uchar i;
// if(column>128) {return;}
if(column<64)
{
SelectScreen(1); //如果列数<64则从第一屏上开始写
SetLine(lin);
SetColumn(column);
for(i=0;i<8;i++)
{
if(column+i<64)
{
WriteByte(*(address+i));
}
else
{
SelectScreen(2);
SetLine(lin);
SetColumn(column-64+i);
WriteByte(*(address+i));
}
}
}
else
{
SelectScreen(2); //否则从第二屏上开始写
column-=64; //防止越界
SetLine(lin);
SetColumn(column);
for(i=0;i<8;i++)
{
if(column+i<64)
{
WriteByte(*(address+i));
}
else
{
SelectScreen(1);
SetLine(lin);
SetColumn(column-64+i);
WriteByte(*(address+i));
}
}
}
}
//显示数字8*16
void ShowNumber(uchar lin,uchar column,uchar num)
{
uchar *address;
address=&Numcode[num][0];
Show8x8(lin,column,address);
Show8x8(lin+1,column,address+8);
}
//显示汉字16*16
void ShowChina(uchar lin,uchar column,uchar num)//行，列。要现实的数字或汉字在数组中位置
{
uchar *address;
// if(lin>7 || column>127){return;}
address = &HZcode[num][0];
Show8x8(lin,column,address);
Show8x8(lin,column+8,address+8);
Show8x8(lin+1,column,address+16);
Show8x8(lin+1,column+8,address+24);
}
void InitLCD(void) //初始化LCD
{
uchar i=2000; //延时
while(i--);
SetOnOff(1); //开显示
ClearScreen(1);//清屏
ClearScreen(2);
SetStartLine(0); //开始行:0
}
void r_show8x8(uchar lin,uchar column,uchar *address)
{
uchar i,r_data;
if(column<64)
{
SelectScreen(1); //如果列数<64则从第一屏上开始写
SetLine(lin);
SetColumn(column);
for(i=0;i<8;i++)
{
if(column+i<64)
{
r_data = ~(*(address+i));
WriteByte(r_data);
}
else
{
SelectScreen(2);
SetLine(lin);
SetColumn(column-64+i);
r_data = ~(*(address+i));
WriteByte(r_data);
}
}
}
else
{
SelectScreen(2); //否则从第二屏上开始写
column-=64; //防止越界
SetLine(lin);
SetColumn(column);
for(i=0;i<8;i++)
{
if(column+i<64)
{
r_data = ~(*(address+i));
WriteByte(r_data);
}
else
{
SelectScreen(1);
SetLine(lin);
SetColumn(column-64+i);
r_data = ~(*(address+i));
WriteByte(r_data);
}
}
}
}
void r_ShowNumber(uchar lin,uchar column,uchar num)
{
uchar *address;
address=&Numcode[num][0];
r_show8x8(lin,column,address);
r_show8x8(lin+1,column,address+8);
}
void main()
{ uchar i;
InitLCD();
for(i=0;i<11;i++)
r_ShowNumber(0,i*8,i);
ShowChina(2,6,0);
ShowChina(4,6,1);
ShowChina(6,6,2);
while(1);
}
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