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#include <reg52.H>
#include <intrins.h>
sbit lcd_sclk=P0^0; /*接口定義:lcd_sclk就是LCD的sclk*/
sbit lcd_sid=P0^1; /*接口定義:lcd_sid就是LCD的sid*/
sbit lcd_rs=P2^6; /*接口定義:lcd_rs就是LCD的A0*/
sbit lcd_reset=P2^5; /*接口定義:lcd_reset就是LCD的reset*/
sbit lcd_cs1=P2^4; /*接口定義:lcd_cs1就是LCD的cs1*/
sbit Rom_IN=P0^3; /*字庫(kù)IC接口定義:Rom_IN就是字庫(kù)IC的SI*/
sbit Rom_OUT=P0^2; /*字庫(kù)IC接口定義:Rom_OUT就是字庫(kù)IC的SO*/
sbit Rom_SCK=P0^4; /*字庫(kù)IC接口定義:Rom_SCK就是字庫(kù)IC的SCK*/
sbit Rom_CS=P0^5; /*字庫(kù)IC接口定義Rom_CS就是字庫(kù)IC的CS#*/
#define uchar unsigned char
#define uint unsigned int
#define ulong unsigned long
//uchar code wang[]={/*--文字：王--*/
// /*-- 宋體12; 此字體下對(duì)應(yīng)的點(diǎn)陣為：寬x高=16x16 --*/
//0x00,0x00,0x7F,0xFC,0x01,0x00,0x01,0x00,0x01,0x00,0x01,0x00,0x01,0x00,0x3F,0xF8,
//0x01,0x00,0x01,0x00,0x01,0x00,0x01,0x00,0x01,0x00,0x01,0x00,0xFF,0xFE,0x00,0x00
//}
//uchar code tong[]={/*-- 文字: 同 --*/
///*-- 宋體12; 此字體下對(duì)應(yīng)的點(diǎn)陣為：寬x高=16x16 --*/
//0x00,0x00,0x3F,0xFC,0x20,0x04,0x20,0x04,0x2F,0xF4,0x20,0x04,0x20,0x04,0x27,0xE4,
//0x26,0x24,0x24,0x24,0x24,0x24,0x27,0xE4,0x24,0x24,0x20,0x04,0x20,0x14,0x20,0x08
//}
//uchar code xue[]={/*-- 文字: 學(xué) --*/
///*-- 宋體12; 此字體下對(duì)應(yīng)的點(diǎn)陣為：寬x高=16x16 --*/
//0x22,0x08,0x11,0x08,0x11,0x10,0x00,0x20,0x7F,0xFE,0x40,0x02,0x80,0x04,0x1F,0xE0,
//0x00,0x40,0x01,0x80,0xFF,0xFE,0x01,0x00,0x01,0x00,0x01,0x00,0x05,0x00,0x02,0x00
//}
/*寫(xiě)指令到LCD模塊*/
void transfer_command_lcd(int data1)
{
char i;
lcd_rs=0;
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;
}
}
/*寫(xiě)數(shù)據(jù)到LCD模塊*/
void transfer_data_lcd(int data1)
{
char i;
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;
}
}
/*延時(shí)*/
void delay(int n_ms)
{
int j,k;
for(j=0;j<n_ms;j++)
for(k=0;k<110;k++);
}
/*LCD模塊初始化*/
void initial_lcd()
{
lcd_cs1=0;
Rom_CS = 1;
lcd_reset=0; /*低電平復(fù)位*/
delay(20);
lcd_reset=1; /*復(fù)位完畢*/
delay(20);
transfer_command_lcd(0xe2); /*軟復(fù)位*/
delay(5);
transfer_command_lcd(0x2c); /*升壓步聚1*/
delay(5);
transfer_command_lcd(0x2e); /*升壓步聚2*/
delay(5);
transfer_command_lcd(0x2f); /*升壓步聚3*/
delay(5);
transfer_command_lcd(0x23); /*粗調(diào)對(duì)比度，可設(shè)置范圍0x20～0x27*/
transfer_command_lcd(0x81); /*微調(diào)對(duì)比度*/
transfer_command_lcd(0x2f); /*0x28,微調(diào)對(duì)比度的值，可設(shè)置范圍0x00～0x3f*/
transfer_command_lcd(0xa2); /*1/9偏壓比（bias）*/
transfer_command_lcd(0xc8); /*行掃描順序：從上到下*/
transfer_command_lcd(0xa0); /*列掃描順序：從左到右*/
transfer_command_lcd(0x40); /*起始行：第一行開(kāi)始*/
transfer_command_lcd(0xaf); /*開(kāi)顯示*/
lcd_cs1=1;
}
void lcd_address(uint page,uint column)
{
column=column-0x01;
transfer_command_lcd(0xb0+page-1); /*設(shè)置頁(yè)地址*/
transfer_command_lcd(0x10+(column>>4&0x0f)); /*設(shè)置列地址的高4位*/
transfer_command_lcd(column&0x0f); /*設(shè)置列地址的低4位*/
}
/*全屏清屏*/
void clear_screen()
{
unsigned char i,j;
lcd_cs1=0;
Rom_CS = 1;
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);
}
}
lcd_cs1=1;
}
/*顯示16x16點(diǎn)陣圖像、漢字、生僻字或16x16點(diǎn)陣的其他圖標(biāo)*/
void display_graphic_16x16(uint page,uint column,uchar *dp)
{
uint i,j;
lcd_cs1=0;
Rom_CS = 1;
for(j=0;j<2;j++)
{
lcd_address(page+j,column);
for (i=0;i<16;i++)
{
transfer_data_lcd(*dp); /*寫(xiě)數(shù)據(jù)到LCD,每寫(xiě)完一個(gè)8位的數(shù)據(jù)后列地址自動(dòng)加1*/
dp++;
}
}
lcd_cs1=1;
}
/*顯示8x16點(diǎn)陣圖像、ASCII, 或8x16點(diǎn)陣的自造字符、其他圖標(biāo)*/
void display_graphic_8x16(uint page,uchar column,uchar *dp)
{
uint i,j;
lcd_cs1=0;
for(j=0;j<2;j++)
{
lcd_address(page+j,column);
for (i=0;i<8;i++)
{
transfer_data_lcd(*dp); /*寫(xiě)數(shù)據(jù)到LCD,每寫(xiě)完一個(gè)8位的數(shù)據(jù)后列地址自動(dòng)加1*/
dp++;
}
}
lcd_cs1=1;
}
/*顯示5*7點(diǎn)陣圖像、ASCII, 或5x7點(diǎn)陣的自造字符、其他圖標(biāo)*/
void display_graphic_5x7(uint page,uchar column,uchar *dp)
{
uint col_cnt;
uchar page_address;
uchar column_address_L,column_address_H;
page_address = 0xb0+page-1;
lcd_cs1=0;
column_address_L =(column&0x0f)-1;
column_address_H =((column>>4)&0x0f)+0x10;
transfer_command_lcd(page_address); /*Set Page Address*/
transfer_command_lcd(column_address_H); /*Set MSB of column Address*/
transfer_command_lcd(column_address_L); /*Set LSB of column Address*/
for (col_cnt=0;col_cnt<6;col_cnt++)
{
transfer_data_lcd(*dp);
dp++;
}
lcd_cs1=1;
}
/****送指令到字庫(kù)IC***/
void send_command_to_ROM( uchar datu )
{
uchar i;
for(i=0;i<8;i++ )
{
if(datu&0x80)
Rom_IN = 1;
else
Rom_IN = 0;
datu = datu<<1;
Rom_SCK=0;
Rom_SCK=1;
}
}
/****從字庫(kù)IC中取漢字或字符數(shù)據(jù)（1個(gè)字節(jié)）***/
static uchar get_data_from_ROM( )
{
uchar i;
uchar ret_data=0;
Rom_SCK=1;
for(i=0;i<8;i++)
{
Rom_OUT=1;
Rom_SCK=0;
ret_data=ret_data<<1;
if( Rom_OUT )
ret_data=ret_data+1;
else
ret_data=ret_data+0;
Rom_SCK=1;
}
return(ret_data);
}
/*從相關(guān)地址（addrHigh：地址高字節(jié),addrMid：地址中字節(jié),addrLow：地址低字節(jié)）中連續(xù)讀出DataLen個(gè)字節(jié)的數(shù)據(jù)到 pBuff的地址*/
/*連續(xù)讀取*/
void get_n_bytes_data_from_ROM(uchar addrHigh,uchar addrMid,uchar addrLow,uchar *pBuff,uchar DataLen )
{
uchar i;
Rom_CS = 0;
lcd_cs1=1;
Rom_SCK=0;
send_command_to_ROM(0x03);
send_command_to_ROM(addrHigh);
send_command_to_ROM(addrMid);
send_command_to_ROM(addrLow);
for(i = 0; i < DataLen; i++ )
*(pBuff+i) =get_data_from_ROM();
Rom_CS = 1;
}
/******************************************************************/
ulong fontaddr=0;
void display_GB2312_string(uchar y,uchar x,uchar *text)
{
uchar i= 0;
uchar addrHigh,addrMid,addrLow ;
uchar fontbuf[32];
while((text[i]>0x00))
{
if(((text[i]>=0xb0) &&(text[i]<=0xf7))&&(text[i+1]>=0xa1))
{
/*國(guó)標(biāo)簡(jiǎn)體（GB2312）漢字在字庫(kù)IC中的地址由以下公式來(lái)計(jì)算：*/
/*Address = ((MSB - 0xB0) * 94 + (LSB - 0xA1)+ 846)*32+ BaseAdd;BaseAdd=0*/
/*由于擔(dān)心8位單片機(jī)有乘法溢出問(wèn)題，所以分三部取地址*/
fontaddr = (text[i]- 0xb0)*94;
fontaddr += (text[i+1]-0xa1)+846;
fontaddr = (ulong)(fontaddr*32);
addrHigh = (fontaddr&0xff0000)>>16; /*地址的高8位,共24位*/
addrMid = (fontaddr&0xff00)>>8; /*地址的中8位,共24位*/
addrLow = fontaddr&0xff; /*地址的低8位,共24位*/
get_n_bytes_data_from_ROM(addrHigh,addrMid,addrLow,fontbuf,32 );/*取32個(gè)字節(jié)的數(shù)據(jù)，存到"fontbuf[32]"*/
display_graphic_16x16(y,x,fontbuf);/*顯示漢字到LCD上，y為頁(yè)地址，x為列地址，fontbuf[]為數(shù)據(jù)*/
i+=2;
x+=16;
}
else if(((text[i]>=0xa1) &&(text[i]<=0xa3))&&(text[i+1]>=0xa1))
{
/*國(guó)標(biāo)簡(jiǎn)體（GB2312）15x16點(diǎn)的字符在字庫(kù)IC中的地址由以下公式來(lái)計(jì)算：*/
/*Address = ((MSB - 0xa1) * 94 + (LSB - 0xA1))*32+ BaseAdd;BaseAdd=0*/
/*由于擔(dān)心8位單片機(jī)有乘法溢出問(wèn)題，所以分三部取地址*/
fontaddr = (text[i]- 0xa1)*94;
fontaddr += (text[i+1]-0xa1);
fontaddr = (ulong)(fontaddr*32);
addrHigh = (fontaddr&0xff0000)>>16; /*地址的高8位,共24位*/
addrMid = (fontaddr&0xff00)>>8; /*地址的中8位,共24位*/
addrLow = fontaddr&0xff; /*地址的低8位,共24位*/
get_n_bytes_data_from_ROM(addrHigh,addrMid,addrLow,fontbuf,32 );/*取32個(gè)字節(jié)的數(shù)據(jù)，存到"fontbuf[32]"*/
display_graphic_16x16(y,x,fontbuf);/*顯示漢字到LCD上，y為頁(yè)地址，x為列地址，fontbuf[]為數(shù)據(jù)*/
i+=2;
x+=16;
}
else if((text[i]>=0x20) &&(text[i]<=0x7e))
{
unsigned char fontbuf[16];
fontaddr = (text[i]- 0x20);
fontaddr = (unsigned long)(fontaddr*16);
fontaddr = (unsigned long)(fontaddr+0x3cf80);
addrHigh = (fontaddr&0xff0000)>>16;
addrMid = (fontaddr&0xff00)>>8;
addrLow = fontaddr&0xff;
get_n_bytes_data_from_ROM(addrHigh,addrMid,addrLow,fontbuf,16 );/*取16個(gè)字節(jié)的數(shù)據(jù)，存到"fontbuf[32]"*/
display_graphic_8x16(y,x,fontbuf);/*顯示8x16的ASCII字到LCD上，y為頁(yè)地址，x為列地址，fontbuf[]為數(shù)據(jù)*/
i+=1;
x+=8;
}
else
i++;
}
}
//===============main program===================
void main(void)
{
while(1)
{
Rom_CS=1;
lcd_cs1=0;
initial_lcd();
clear_screen(); //clear all dots
display_GB2312_string(1,1,"Become Lonely !"); /*在第1頁(yè)，第1列，顯示一串16x16點(diǎn)陣漢字或8x16的ASCII字*/
delay(1000);
display_GB2312_string(3,1,"0.0 0.0"); /*顯示一串16x16點(diǎn)陣漢字或8x16的ASCII字.以下雷同*/
delay(1000);
display_GB2312_string(5,1,"0.0 0.0");
delay(1000);
display_GB2312_string(7,1,"0.0 0.0");
delay(5000);
}
}
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