lcd_display.c

keil c51编写的LCD 12864像素LCD显示屏程序,,通过调用函数,显示grom字库中的7千多个简体中文和字符

#include<stdio.h>
#include<intrins.h>
#include <reg51.h>
#include <math.h>
#include <absacc.h>
#include <string.h>
/* 地址定义 */
#define d_add XBYTE[0x8000]
#define c_add XBYTE[0x8100]
/* 常数定义 */
#define para1 0x20;
#define uchar unsigned char
#define uint unsigned int

#define dat1 DBYTE[0x30]
#define dat2 DBYTE[0x31]
#define com DBYTE[0x32]
#define code_1 DBYTE[0x33]
#define attr DBYTE[0x34]
#define O_Y DBYTE[0x35]
#define O_X DBYTE[0x36]
/* 定义标志位 */
sbit Acc_0=ACC^0;
sbit Acc_1=ACC^1;
sbit Acc_2=ACC^2;
sbit Acc_3=ACC^3;
uchar num=0;
bit s=0;
uchar x=0;
uchar y=0;
/******************************/
code uchar linehead[]={0x00,0x01,0x03,0x04,0x05,0x06,0x07};

code unsigned char CGTAB[320]={
/*80=0 */
0x00,0x00,0x00,0x1C,0x36,0x63,0x63,0x63,
0x63,0x63,0x63,0x63,0x36,0x1C,0x00,0x00,

/*82=1 */
0x00,0x00,0x00,0x18,0x78,0x18,0x18,0x18,
0x18,0x18,0x18,0x18,0x18,0x7E,0x00,0x00,

/*84=2 */
0x00,0x00,0x00,0x3E,0x63,0x63,0x63,0x06,
0x06,0x0C,0x18,0x30,0x63,0x7F,0x00,0x00,

/*86=3 */
0x00,0x00,0x00,0x3E,0x63,0x63,0x06,0x1C,
0x06,0x03,0x03,0x63,0x66,0x3C,0x00,0x00,

/*88=4 */
0x00,0x00,0x00,0x06,0x0E,0x1E,0x36,0x36,
0x66,0x66,0x7F,0x06,0x06,0x1F,0x00,0x00,

/*8a=5 */
0x00,0x00,0x00,0x7F,0x60,0x60,0x60,0x7C,
0x76,0x03,0x03,0x63,0x66,0x3C,0x00,0x00,

/*8c=6 */
0x00,0x00,0x00,0x1E,0x36,0x60,0x60,0x7C,
0x76,0x63,0x63,0x63,0x36,0x1C,0x00,0x00,

/*8e=7 */
0x00,0x00,0x00,0x7F,0x66,0x66,0x0C,0x0C,
0x18,0x18,0x18,0x18,0x18,0x18,0x00,0x00,

/*90=8 */
0x00,0x00,0x00,0x3E,0x63,0x63,0x63,0x36,
0x1C,0x36,0x63,0x63,0x63,0x3E,0x00,0x00,

/*92=9 */
0x00,0x00,0x00,0x1C,0x36,0x63,0x63,0x63,
0x37,0x1F,0x03,0x03,0x36,0x3C,0x00,0x00,
/*94=:*/
0x00,0x00,0x00,0x00,0x1C,0x1C,0x1C,0x1C,
0x00,0x00,0x1C,0x1C,0x1C,0x1C,0x00,0x00,
/*96=o */
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x3E,
0x63,0x63,0x63,0x63,0x63,0x3E,0x00,0x00,

/*98=k */
0x00,0x00,0x00,0xE0,0x60,0x60,0x60,0x6F,
0x6C,0x78,0x7C,0x6C,0x66,0xFF,0x00,0x00,

/*9a=z */
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x7F,
0x66,0x0C,0x18,0x18,0x33,0x7F,0x00,0x00,

/*9c=- */
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x7F,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

/*9e=" */
0x00,0x1B,0x3F,0x36,0x6C,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
/*A0=G */
0x00,0x00,0x00,0x3E,0x66,0x66,0xC0,0xC0,
0xC0,0xCF,0xC6,0x66,0x66,0x3C,0x00,0x00,

/*A2=P */
0x00,0x00,0x00,0xFE,0x63,0x63,0x63,0x63,
0x7E,0x60,0x60,0x60,0x60,0xF0,0x00,0x00,

/*A4=Y */
0x00,0x00,0x00,0xFF,0x66,0x66,0x3C,0x3C,
0x18,0x18,0x18,0x18,0x18,0x3C,0x00,0x00,

/*A6=R */
0x00,0x00,0x00,0xFE,0x63,0x63,0x63,0x7E,
0x6C,0x6C,0x66,0x66,0x63,0xF3,0x00,0x00

};


code unsigned char CCTAB[49][32]={
/* 0=红*/
0x10,0x10,0x23,0x20,0x44,0xF8,0x10,0x20,
0x40,0xFC,0x40,0x00,0x1C,0xE0,0x47,0x00,
0x00,0x08,0xFC,0x20,0x20,0x20,0x20,0x20,
0x20,0x20,0x20,0x20,0x20,0x24,0xFE,0x00,

/*1=绿*/
0x10,0x13,0x20,0x21,0x44,0xFF,0x10,0x22,
0x41,0xF9,0x00,0x01,0x1A,0xE4,0x41,0x00,
0x08,0xFC,0x08,0xF8,0x08,0xFE,0x40,0x44,
0x4C,0x50,0xE0,0x50,0x48,0x4E,0x44,0x80,
/*2=黄*/

};


unsigned char code DTAB[11]={ 0x37,0x45,0x4c,0x43,0x4f,0x4d,0x45,0x00,0x39,0x4f,0x55};
unsigned char code ASC[10]={ 0x10,0x11,0x12,0x13,0x14,0x15,0x16,0x17,0x18,0x19};
INIT_1();
CLEAR();
CGRAM();
CCWR1_PR();
CCW2_PR();
CW2_PR();
W_DOT();
PR1();
PR11();
PR12();
ST01();
ST2();
ST3();
DISHAZIT(uchar x,uchar y,uchar d);
DISHAZIW(uchar x,uchar y,uchar d);
DISDASC(uchar x,uchar y,uchar d);
DISASC(uchar x,uchar y,uchar d);

FCCW2_PR();
ShowLine(uchar x,uchar y,uchar *puts,uchar le,uchar kk);
FDISHAZIT(uchar x,uchar y,uchar d);
GUANGBIAO(uchar x,uchar y);
void delay(int t);
uchar keyscan();

/**************************/
/* 初始化函数 */
/**************************/
INT_1()
{
dat1=0x00; /*设文本显示区域首地址*/
dat2=0x00;
com=0x40;
PR1();

dat1=para1; /*设文本显示区域宽度*/
dat2=0x00;
com=0x41;
PR1();

dat1=0x00; /*设图形显示区域首地址*/
dat2=0x08;
com=0x42;
PR1();
dat1=para1; /*设图形显示区域宽度*/
dat2=0x00;
com=0x43;
PR1();

com=0xa0; /*光标形状设置*/
PR12();

com=0x80; /*显示方式设置逻辑"或"合成*/
PR12();

com=0x9c; /*显示开关设置 开文本和图形显示*/
PR12();
}



/***************************/
/* 清显示子程序 */
/***************************/
CLEAR()
{
unsigned char i,j;
dat1=0x00;
dat2=0x00;
com=0x24;
PR1();
com=0xb0;
PR12();
for(i=0;i<205;i++)
{
for(j=0;j<=40;j++)
{
ST3();
d_add=0x00;
}
}
com=0xb2;
PR12();
}/**************************/
/* CGRAM函数 */
/**************************/
CGRAM()
{
unsigned int i;
dat1=0x03;
dat2=0x00;
com=0x22; /* 设置CGRAM偏置地址 */
PR1();
dat1=0x00;
dat2=0x1c;
com=0x24; /* 设置存储器地址指针 */
PR1();
com=0xb0; /* 设置自动写方式 */
PR12();
for(i=0;i<320;i++)
{
ST3();
d_add=CGTAB[i];
}
com=0xb2; /* 设置自动写结束方式 */
PR12();
}

/********************************/
/* 汉字写入(文本方式)函数 */
/********************************/
CCW1_PR()
{
unsigned int i,j;
i=para1;
j=i*O_Y+O_X;
dat1=j%256;
dat2=j/256;
com=0x24; /* 设置显示地址 */
PR1();
dat2=code_1; /* 写入左上半部汉字代码 */
com=0xc0;
PR11();
dat2=code_1+0x02; /* 写入右上半部汉字代码 */
PR11();
j=j+i;
dat1=j%256; /* 显示RAM地址修正 */
dat2=j/256;
com=0x24;
PR1();
dat2=code_1+0x01; /* 写入左下半部汉字代码 */
com=0xc0;
PR11();
dat2=code_1+0x03; /* 写入右下半部汉字代码 */
PR11();
}

CCWD_PR() /* */
{
unsigned int i,j;
i=para1;
j=i*O_Y+O_X;

dat1=j%256;
dat2=j/256;
com=0x24; /* 设置显示地址 */
PR1();
dat2=code_1; /* 写入左上半部汉字代码 */
com=0xc0;
PR11();

j=j+i;
dat1=j%256; /* 显示RAM地址修正 */
dat2=j/256;
com=0x24;
PR1();

dat2=code_1+0x01; /* 写入左下半部汉字代码 */
com=0xc0;
PR11();

}

CCW2_PR()
{
unsigned int i,j,count1;
i=para1;
j=i*O_Y+O_X+0x0800;
for(count1=0;count1<16;count1++)
{
dat1=j%256;
dat2=j/256;
com=0x24;
PR1();

dat2=CCTAB[code_1][count1]; /* 写入汉字左侧代码 */
com=0xc0;
PR11();

dat2=CCTAB[code_1][count1+16]; /* 写入汉字右侧代码 */
PR11();
j=j+i;
}
}


/********************************/
/* 西文字符写入(文本属性)函数 */
/********************************/
CW2_PR()
{
unsigned int i,j;
i=para1;
j=i*O_Y+O_X;
dat1=j%256;
dat2=j/256;
com=0x24; /* 显示地址设置 */
PR1();

dat2=code_1;
com=0xC0; /* 数据写 */
PR11();

dat2=0x08;
com=0x24;
PR1();


}



/****************************/
/* 绘点函数 */
/****************************/
W_DOT()
{
unsigned char i;
unsigned int k;
i=O_X%8;
O_X=O_X/8;
k=0x20*O_Y+O_X+0x0800;
dat1=k%256;
dat2=k/256;
com=0x24;
PR1();
i=0x07-i;
com=i|0xf8; /* 位操作 */
PR12();
}
/****************************/
/* 写指令和写数据函数 */
/****************************/
PR1() /* 双字节参数指令写入入口 */
{
ST01();
d_add=dat1; /* 取第一参数单元数据 */
PR11();
}
PR11() /* 单字节参数指令写入入口 */
{
ST01();
d_add=dat2; /* 取第二参数单元数据 */
PR12();
}
PR12() /* 无参数指令写入入口 */
{
ST01();
c_add=com; /* 写入指令代码 */
}
/************************************************/
/* 判状态位S1,S0 函数(读写指令和读写数据状态) */
/************************************************/
ST01()
{
do
{
ACC=c_add;
}
while(Acc_0==0,Acc_1==0);
}
/************************************/
/* 判状态位S2函数(数据自动读状态) */
/************************************/
ST2()
{
do
{
ACC=c_add;
}
while(Acc_2==0);
}
/************************************/
/* 判状态位S3函数(数据自动写状态) */
/************************************/
ST3()
{
do
{
ACC=c_add;
}
while(Acc_3==0);
}

DISHAZIT(uchar x,uchar y,uchar d) /*汉字写入（图文方式）*/
{
code_1=d;
O_X=x;
O_Y=y;
CCW2_PR();
}


DISDASC(uchar x,uchar y,uchar d) /*汉字写入（文本方式）*/
{
code_1=d;
O_X=x;
O_Y=y;
CCWD_PR();
}
DISASC(uchar x,uchar y,uchar d)
{
O_X=x;
O_Y=y;
code_1=d; /*西文写WELCOME YOU */
CW2_PR();
}

ShowLine(uchar x,uchar y,uchar *puts,uchar le,uchar kk)
{
uchar uk,jk,byte;
for(uk=x,jk=0;jk<le;jk++)
{
byte=puts[jk];
if(kk==0){ DISHAZIT(uk,y,byte);}
else {FDISHAZIT(uk,y,byte);}
uk=uk+2; /*汉字从0x80开始,包括0x80*/
/* else {DISASC(x,k,byte);k=k+1;} 字母 ASCII码从0X20 开始*/
}
}
FDISHAZIT(uchar x,uchar y,uchar d) /*汉字写入（反图文方式）*/
{
code_1=d;
O_X=x;
O_Y=y;
FCCW2_PR();
}
FCCW2_PR()
{
unsigned int i,j,count1;
i=para1;
j=i*O_Y+O_X+0x0800;
for(count1=0;count1<16;count1++)
{
dat1=j%256;
dat2=j/256;
com=0x24;
PR1();

dat2=0xff-CCTAB[code_1][count1]; /* 写入汉字左侧代码 */
com=0xc0;
PR11();

dat2=0xff-CCTAB[code_1][count1+16]; /* 写入汉字右侧代码 */
PR11();
j=j+i;
}
}

GUANGBIAO(uchar x,uchar y)
{
dat1=x; /*光标定位*/
dat2=y;
com=0x21;
PR1();
}

/***************************/
/* 演示主程序 */
/***************************/

void main()
{
uchar code STR1[5]={0x00,0x01,0x02,0x03,0x04};
INT_1(); /* 初始化函数 */
CLEAR(); /* 清屏函数 */
CGRAM(); /* 建立CGRAM内字库函数 */

/* 汉字写入（文本方式）方*/
FDISHAZIT(0xa,0x00,0x00);
/* 汉字写入（图文方式）红*/
DISHAZIT(0xa,0x10,0X01);
/* 汉字写入（图文方式）绿*/
DISDASC(0x01,0x00,0X80);
/* 汉字写入（文本方式）(*/
DISDASC(0x01,0x02,0X82);
DISDASC(0x01,0x04,0X84);
DISDASC(0x01,0x06,0X86);
DISDASC(0x01,0x08,0X88);
DISDASC(0x01,0x0a,0X8a);
DISDASC(0x01,0x0c,0X8c);
/* 汉字写入（文本方式）*/
//ShowLine(0x0a,0x70,STR1,3,1);
//ShowLine(0x0a,0x50,STR1,2,0);
while(1);
}