程序员经验分享-hwhale

2021-01-20

2023-05-16

中文字库液晶模块12864示例程序范例：

//液晶屏型号：JLX12864G-086-PC-3S
//接口：串行
//中文字库：带中文字库IC:JLX-GB2312,竖置横排
//驱动IC:UC1701X(与ST7565R兼容)
//主板：89C516-001老主板
//单片机：51系列

#include
#include

sbit lcd_sclk=P3^2; //接口定义:lcd_sclk就是LCD的SCLK
sbit lcd_sid=P3^1; //接口定义:lcd_sid就是LCD的SDA
sbit lcd_rs=P3^0; //接口定义:lcd_rs就是LCD的RS,也叫“CD”
sbit lcd_reset=P1^0; //接口定义:lcd_reset就是LCD的RESET
sbit lcd_cs1=P1^1; //接口定义:lcd_cs1就是LCD的CS1

sbit Rom_IN=P1^2; //字库IC接口定义:Rom_IN就是字库IC的SI
sbit Rom_OUT=P1^3; //字库IC接口定义:Rom_OUT就是字库IC的SO
sbit Rom_SCK=P1^4; //字库IC接口定义:Rom_SCK就是字库IC的SCK
sbit Rom_CS=P1^5; //字库IC接口定义Rom_CS就是字库IC的CS#

sbit key=P2^0; //定义一个按键

#define uchar unsigned char
#define uint unsigned int
#define ulong unsigned long

uchar code bmp1[];

uchar code jiong1[]={// 文字: 囧
// 宋体12; 此字体下对应的点阵为：宽x高=16x16
0x00,0xFE,0x82,0x42,0xA2,0x9E,0x8A,0x82,0x86,0x8A,0xB2,0x62,0x02,0xFE,0x00,0x00,
0x00,0x7F,0x40,0x40,0x7F,0x40,0x40,0x40,0x40,0x40,0x7F,0x40,0x40,0x7F,0x00,0x00};

uchar code lei1[]={// 文字: 畾
// 宋体12; 此字体下对应的点阵为：宽x高=16x16
0x80,0x80,0x80,0xBF,0xA5,0xA5,0xA5,0x3F,0xA5,0xA5,0xA5,0xBF,0x80,0x80,0x80,0x00,
0x7F,0x24,0x24,0x3F,0x24,0x24,0x7F,0x00,0x7F,0x24,0x24,0x3F,0x24,0x24,0x7F,0x00};

//延时
void delay(int n_ms)
{
int j,k;
for(j=0;j for(k=0;k<110;k++);
}
//短延时
void delay_us(int n_us)
{
int j,k;
for(j=0;j for(k=0;k<1;k++);
}

//等待一个按键，我的主板是用P2.0与GND之间接一个按键
void waitkey()
{
repeat:
if (key==1) goto repeat;
else delay(600);
}

//写指令到LCD模块
void transfer_command_lcd(int data1)
{
char i;
lcd_cs1=0;
lcd_rs=0;
for(i=0;i<8;i++)
{
lcd_sclk=0;
//delay_us(10); //加少量延时
if(data1&0x80) lcd_sid=1;
else lcd_sid=0;
lcd_sclk=1;
//delay_us(10); //加少量延时
data1=data1<<=1;
}
lcd_cs1=1;
}

//写数据到LCD模块
void transfer_data_lcd(int data1)
{
char i;
lcd_cs1=0;
lcd_rs=1;
for(i=0;i<8;i++)
{
lcd_sclk=0;
if(data1&0x80) lcd_sid=1;
else lcd_sid=0;
lcd_sclk=1;
data1=data1<<=1;
}
lcd_cs1=1;
}

//LCD模块初始化
void initial_lcd()
{
lcd_reset=0; //低电平复位
delay(100);
lcd_reset=1; //复位完毕
delay(100);
transfer_command_lcd(0xe2); //软复位
delay(5);
transfer_command_lcd(0x2c); //升压步聚1
delay(50);
transfer_command_lcd(0x2e); //升压步聚2
delay(50);
transfer_command_lcd(0x2f); //升压步聚3
delay(5);
transfer_command_lcd(0x23); //粗调对比度，可设置范围0x20～0x27
transfer_command_lcd(0x81); //微调对比度
transfer_command_lcd(0x28); //微调对比度的值，可设置范围0x00～0x3f
transfer_command_lcd(0xa2); //1/9偏压比（bias）
transfer_command_lcd(0xc8); //行扫描顺序：从上到下
transfer_command_lcd(0xa0); //列扫描顺序：从左到右
transfer_command_lcd(0x40); //起始行：第一行开始
transfer_command_lcd(0xaf); //开显示
}

void lcd_address(uint page,uint column)
{
column=column-0x01;
transfer_command_lcd(0xb0+page-1); //设置页地址，每8行为一页，全屏共64行，被分成8页
transfer_command_lcd(0x10+(column>>4&0x0f)); //设置列地址的高4位
transfer_command_lcd(column&0x0f); //设置列地址的低4位
}

//全屏清屏
void clear_screen()
{
unsigned char i,j;

for(i=0;i<9;i++)
{
transfer_command_lcd(0xb0+i);
transfer_command_lcd(0x10);
transfer_command_lcd(0x00);
for(j=0;j<132;j++)
{
transfer_data_lcd(0x00);
}
}
}

//显示128x64点阵图像
void display_128x64(uchar *dp)
{
uint i,j;

for(j=0;j<8;j++)
{
lcd_address(j+1,1);
for (i=0;i<128;i++)
{
transfer_data_lcd(*dp); //写数据到LCD,每写完一个8位的数据后列地址自动加1
dp++;
}
}
}

//显示16x16点阵图像、汉字、生僻字或16x16点阵的其他图标
void display_graphic_16x16(uchar page,uchar column,uchar *dp)
{
uint i,j;
for(j=0;j<2;j++)
{
lcd_address(page+j,column);
for (i=0;i<16;i++)
{
transfer_data_lcd(*dp); //写数据到LCD,每写完一个8位的数据后列地址自动加1
dp++;
}
}
}

//显示8x16点阵图像、ASCII, 或8x16点阵的自造字符、其他图标
void display_graphic_8x16(uchar page,uchar column,uchar *dp)
{
uint i,j;
for(j=0;j<2;j++)
{
lcd_address(page+j,column);
for (i=0;i<8;i++)
{
transfer_data_lcd(*dp); //写数据到LCD,每写完一个8位的数据后列地址自动加1
dp++;
}
}
}

//显示5X8点阵图像、ASCII, 或5x8点阵的自造字符、其他图标
void display_graphic_5x8(uchar page,uchar column,uchar *dp)
{
uint i;
lcd_address(page,column);
for (i=0;i<6;i++)
{
transfer_data_lcd(*dp);
dp++;
}

}

//送指令到晶联讯字库IC
void send_command_to_ROM( uchar datu )
{
uchar i;
for(i=0;i<8;i++ )
{
Rom_SCK=0;
delay_us(10);
if(datu&0x80)Rom_IN = 1;
else Rom_IN = 0;
datu = datu<<1;
Rom_SCK=1;
delay_us(10);
}
}

//从晶联讯字库IC中取汉字或字符数据（1个字节）
static uchar get_data_from_ROM( )
{
uchar i;
uchar ret_data=0;
for(i=0;i<8;i++)
{
Rom_OUT=1;
Rom_SCK=0;
//delay_us(1);
ret_data=ret_data<<1;
if( Rom_OUT )
ret_data=ret_data+1;
else
ret_data=ret_data+0;
Rom_SCK=1;
//delay_us(1);
}
return(ret_data);
}

//从指定地址读出数据写到液晶屏指定（page,column)座标中
void get_and_write_16x16(ulong fontaddr,uchar page,uchar column)
{
uchar i,j,disp_data;
Rom_CS = 0;
send_command_to_ROM(0x03);
send_command_to_ROM((fontaddr&0xff0000)>>16); //地址的高8位,共24位
send_command_to_ROM((fontaddr&0xff00)>>8); //地址的中8位,共24位
send_command_to_ROM(fontaddr&0xff); //地址的低8位,共24位
for(j=0;j<2;j++)
{
lcd_address(page+j,column);
for(i=0; i<16; i++ )
{
disp_data=get_data_from_ROM();
transfer_data_lcd(disp_data); //写数据到LCD,每写完1字节的数据后列地址自动加1
}
}
Rom_CS=1;
}

//从指定地址读出数据写到液晶屏指定（page,column)座标中
void get_and_write_8x16(ulong fontaddr,uchar page,uchar column)
{
uchar i,j,disp_data;
Rom_CS = 0;
send_command_to_ROM(0x03);
send_command_to_ROM((fontaddr&0xff0000)>>16); //地址的高8位,共24位
send_command_to_ROM((fontaddr&0xff00)>>8); //地址的中8位,共24位
send_command_to_ROM(fontaddr&0xff); //地址的低8位,共24位
for(j=0;j<2;j++)
{
lcd_address(page+j,column);
for(i=0; i<8; i++ )
{
disp_data=get_data_from_ROM();
transfer_data_lcd(disp_data); //写数据到LCD,每写完1字节的数据后列地址自动加1
}
}
Rom_CS=1;
}

//从指定地址读出数据写到液晶屏指定（page,column)座标中
void get_and_write_5x8(ulong fontaddr,uchar page,uchar column)
{
uchar i,disp_data;
Rom_CS = 0;
send_command_to_ROM(0x03);
send_command_to_ROM((fontaddr&0xff0000)>>16); //地址的高8位,共24位
send_command_to_ROM((fontaddr&0xff00)>>8); //地址的中8位,共24位
send_command_to_ROM(fontaddr&0xff); //地址的低8位,共24位
lcd_address(page,column);
for(i=0; i<5; i++ )
{
disp_data=get_data_from_ROM();
transfer_data_lcd(disp_data); //写数据到LCD,每写完1字节的数据后列地址自动加1
}
Rom_CS=1;
}

//****************************************************************

ulong fontaddr=0;
void display_GB2312_string(uchar page,uchar column,uchar *text)
{
uchar i= 0;
while((text[i]>0x00))
{
if(((text[i]>=0xb0) &&(text[i]<=0xf7))&&(text[i+1]>=0xa1))
{
//国标简体（GB2312）汉字在晶联讯字库IC中的地址由以下公式来计算：
//Address = ((MSB - 0xB0) * 94 + (LSB - 0xA1)+ 846)*32+ BaseAdd;BaseAdd=0
//由于担心8位单片机有乘法溢出问题，所以分三部取地址
fontaddr = (text[i]- 0xb0)94;
fontaddr += (text[i+1]-0xa1)+846;
fontaddr = (ulong)(fontaddr32);

get_and_write_16x16(fontaddr,page,column); //从指定地址读出数据写到液晶屏指定（page,column)座标中
i+=2;
column+=16;
}
else if(((text[i]>=0xa1) &&(text[i]<=0xa3))&&(text[i+1]>=0xa1))
{
//国标简体（GB2312）15x16点的字符在晶联讯字库IC中的地址由以下公式来计算：
//Address = ((MSB - 0xa1) * 94 + (LSB - 0xA1))*32+ BaseAdd;BaseAdd=0
//由于担心8位单片机有乘法溢出问题，所以分三部取地址
fontaddr = (text[i]- 0xa1)94;
fontaddr += (text[i+1]-0xa1);
fontaddr = (ulong)(fontaddr32);

get_and_write_16x16(fontaddr,page,column); //从指定地址读出数据写到液晶屏指定（page,column)座标中
i+=2;
column+=16;
}
else if((text[i]>=0x20) &&(text[i]<=0x7e))
{
fontaddr = (text[i]- 0x20);
fontaddr = (unsigned long)(fontaddr*16);
fontaddr = (unsigned long)(fontaddr+0x3cf80);

get_and_write_8x16(fontaddr,page,column); //从指定地址读出数据写到液晶屏指定（page,column)座标中
i+=1;
column+=8;
}
else
i++;
}

}

void display_string_5x8(uchar page,uchar column,uchar *text)
{
unsigned char i= 0;
while((text[i]>0x00))
{

if((text[i]>=0x20) &&(text[i]<=0x7e))
{
fontaddr = (text[i]- 0x20);
fontaddr = (unsigned long)(fontaddr*8);
fontaddr = (unsigned long)(fontaddr+0x3bfc0);

get_and_write_5x8(fontaddr,page,column); //从指定地址读出数据写到液晶屏指定（page,column)座标中

i+=1;
column+=6;
}
else
i++;
}
}

//=main program=====
void main(void)
{
while(1)
{
initial_lcd();
clear_screen(); //clear all dots
display_128x64(bmp1);
delay(2000);
display_GB2312_string(1,1,“12864,带中文字库”); //在第1页，第1列，显示一串16x16点阵汉字或8x16的ASCII字
display_GB2312_string(3,1,“16X16简体汉字库,”); //显示一串16x16点阵汉字或8x16的ASCII字.以下雷同
display_GB2312_string(5,1,“或8X16点阵ASCII,”);
display_GB2312_string(7,1,“或5x8点阵ASCII码”);
delay(4000);
clear_screen();
display_GB2312_string(1,1,“晶联讯成立于二零”);
display_GB2312_string(3,1,“零四年十一月七日”);
display_GB2312_string(5,1,“主要生产液晶模块”);
display_GB2312_string(7,1,“品质至上真诚服务”);
delay(4000);
display_GB2312_string(1,1,“GB2312简体字库及”);
display_GB2312_string(3,1,“有图型功能，可自”);
display_GB2312_string(5,1,“编大字或图像或生”);
display_GB2312_string(7,1,“僻字，例如： “);
display_graphic_16x16(7,97,jiong1); //在第7页，第81列显示单个自编生僻汉字“囧”
display_graphic_16x16(7,113,lei1); //显示单个自编生僻汉字"畾“
delay(4000);
clear_screen();
display_GB2312_string(1,1,” display_string_5x8(3,1,” display_string_5x8(4,1,"JLX electronics Co., ");//显示一串5x8点阵的ASCII字
display_string_5x8(5,1,"Ltd. established at ");//显示一串5x8点阵的ASCII字
display_string_5x8(6,1,"year 2004.Focus LCM. ");//显示一串5x8点阵的ASCII字
display_string_5x8(7,1,"TEL:0755-29784961 ");//显示一串5x8点阵的ASCII字
display_string_5x8(8,1,"FAX:0755-29784964 ");//显示一串5x8点阵的ASCII字
delay(4000);
display_GB2312_string(1,1,“啊阿埃挨哎唉哀皑”); //在第1页，第1列，显示一串16x16点阵汉字或8x16的ASCII字
display_GB2312_string(3,1,“癌蔼矮艾碍爱隘鞍”); //显示一串16x16点阵汉字或8x16的ASCII字.以下雷同
display_GB2312_string(5,1,“氨安俺按暗岸胺案”);
display_GB2312_string(7,1,“肮昂盎凹敖熬翱袄”);
delay(4000);
display_GB2312_string(1,1,“鬟鬣麽麾縻麂麇麈”);
display_GB2312_string(3,1,“麋麒鏖麝麟黛黜黝”);
display_GB2312_string(5,1,“黠黟黢黩黧黥黪黯”);
display_GB2312_string(7,1,“鼢鼬鼯鼹鼷鼽鼾齄”);
delay(4000);
}
}

uchar code bmp1[]={
// 调入了一幅图像：D:\我的文档\My Pictures\12864-555.bmp
// 宽度x高度=128x64
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x80,0x80,0xC0,0xC0,0xC0,0xC0,0xE0,0x60,0xE0,0xE0,0xE0,0xE0,0x60,
0x60,0x60,0x60,0x60,0x60,0x60,0xE0,0xE0,0xE0,0xE0,0xC0,0xC0,0xC0,0xC0,0x80,0x80,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0xC0,0xE0,0x70,0x38,0x18,0x1C,0x0C,
0x0E,0x07,0x03,0x03,0x01,0x81,0xE0,0x78,0x1C,0x0E,0x07,0x03,0x01,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x03,0x07,0x0E,0x1C,0x79,0xE1,0x83,
0x03,0x07,0x0E,0x0C,0x1C,0x18,0x38,0x70,0xE0,0xC0,0x80,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x80,0xC0,0xC0,0xC0,
0xC0,0xE0,0xE0,0xE0,0xE0,0xE0,0xE0,0xE0,0xE0,0xE0,0xE0,0xE0,0xE0,0xE0,0xE0,0xE0,
0xE0,0xE0,0xE0,0xE0,0xE0,0xE0,0xE0,0xE0,0xE0,0xE0,0xE0,0xE0,0xE0,0xE0,0xE0,0xE0,
0xE0,0xE0,0xE0,0xC0,0xC0,0xC0,0xC0,0xC0,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x80,0xF0,0x78,0x1E,0x07,0x03,0x81,0x80,0xC0,0xC0,0xC0,0xE0,0x60,
0x60,0x60,0x70,0xF0,0xFE,0x3F,0x19,0x18,0x18,0x18,0x18,0x18,0x18,0x18,0x18,0x18,
0x18,0x18,0x18,0x18,0x18,0x18,0x18,0x18,0x18,0x18,0x18,0x18,0x18,0x38,0x31,0x3F,
0xFE,0xF0,0x60,0x60,0xE0,0xC0,0xC0,0xC0,0x80,0x81,0x03,0x07,0x1E,0x78,0xF0,0x80,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xC0,0xFC,0xFF,0x7F,0x07,0x0F,0x1F,0x3D,
0x79,0x71,0xF0,0xE0,0xC0,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,
0x80,0xC0,0xE0,0xF0,0x71,0x79,0x3D,0x1F,0x0F,0xFF,0xFE,0xFC,0x00,0x00,0x00,0x00,
0x00,0x80,0xFE,0xFF,0xF9,0x1C,0x0E,0x07,0x03,0x03,0x01,0x01,0x00,0x00,0x00,0x00,
0x00,0x00,0xFF,0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0xFF,0xFF,0x00,0x00,0x00,0x00,0x01,0x01,0x03,0x03,0x07,0x0E,0x1C,0xF9,0xFF,
0xFE,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFF,0xFF,0xFF,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x01,0x03,0x07,0x0F,0x0E,0x9E,0xFC,0xF8,0xF0,0xE0,0xC0,0xC0,0x80,
0x00,0x00,0x00,0x00,0x00,0x80,0xC0,0xC0,0xE0,0xF0,0xF8,0xF8,0xFC,0x9E,0x0F,0x07,
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};

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