# include <reg51.h>
unsigned char table1[]={0x03,0x07,0x0f,0x1f,0x1f,0x1f,0x1f,0x1f,
0x18,0x1E,0x1f,0x1f,0x1f,0x1f,0x1f,0x1f,
0x07,0x1f,0x1f,0x1f,0x1f,0x1f,0x1f,0x1f,
0x10,0x18,0x1c,0x1E,0x1E,0x1E,0x1E,0x1E,
0x0f,0x07,0x03,0x01,0x00,0x00,0x00,0x00,
0x1f,0x1f,0x1f,0x1f,0x1f,0x0f,0x07,0x01,
0x1f,0x1f,0x1f,0x1f,0x1f,0x1c,0x18,0x00,
0x1c,0x18,0x10,0x00,0x00,0x00,0x00,0x00};//心圖案
#define CLEARSCREEN LCD_write_command(0x01)
/**************定義接口************************/
#define LCDIO P0
sbit LCD1602_RS=P2^2;
sbit LCD1602_RW=P2^1;
sbit LCD1602_EN=P2^0;
/**************定義函數(shù)************************/
void LCD_write_command(unsigned char command);//寫入指令函數(shù)
void LCD_write_dat(unsigned char dat);//寫入數(shù)據(jù)函數(shù)
void LCD_set_xy( unsigned char x, unsigned char y );//設(shè)置顯示位置函數(shù)
void LCD_dsp_char( unsigned x,unsigned char y,unsigned char dat);//顯示一個字符函數(shù)
void LCD_dsp_string(unsigned char X,unsigned char Y,unsigned char *s);//顯示字符串函數(shù)
void LCD_init(void);//初始化函數(shù)
void delay_nms(unsigned int n);//延時函數(shù)
/********************************************/
/************初始化函數(shù)****************/
void LCD_init(void)
{
CLEARSCREEN;//clear screen
LCD_write_command(0x38);//set 8 bit data transmission mode
LCD_write_command(0x0c);//open display (enable lcd display)
LCD_write_command(0x80);//set lcd first display address
CLEARSCREEN;//clear screen
}
/****************************************************/
/**************寫指令函數(shù)********************************/
void LCD_write_command(unsigned char command)
{
LCDIO=command;
LCD1602_RS=0;
LCD1602_RW=0;
LCD1602_EN=0;
LCD1602_EN=1;
delay_nms(10);
}
/***************************************************/
/****************寫數(shù)據(jù)函數(shù)************************/
void LCD_write_dat(unsigned char dat)
{
LCDIO=dat;
LCD1602_RS=1;
LCD1602_RW=0;
LCD1602_EN=0;
delay_nms(1);
LCD1602_EN=1;
}
/****************************************************/
/***************設(shè)置顯示位置**************************/
void LCD_set_xy( unsigned char x, unsigned char y )
{
unsigned char address;
if (y == 1)
address = 0x80 + x;
else
address =0xc0+ x;
LCD_write_command(address);
}
/***************************************************/
/****************顯示一個字符**********************/
void LCD_dsp_char( unsigned x,unsigned char y,unsigned char dat)
{
LCD_set_xy( x, y );
LCD_write_dat(dat);
}
/**********************************************/
/***************顯示字符串函數(shù)***************/
void LCD_dsp_string(unsigned char X,unsigned char Y,unsigned char *s)
{
LCD_set_xy( X, Y );
while (*s)
{
LCD_write_dat(*s);
s ++;
}
}
/***********************************************/
/********** 延時**********************/
void delay_nms(unsigned int n)
{
unsigned int i=0,j=0;
for (i=n;i>0;i--)
for (j=0;j<10;j++);
}
/**************************************/
/***********主函數(shù)**************/
void main(void)
{
unsigned char i,j,k,tmp;
LCD_init();
delay_nms(100);
tmp=0x40;//設(shè)置CGRAM地址的格式字
k=0;
for(j=0;j<8;j++)
{
for(i=0;i<8;i++)
{
LCD_write_command(tmp+i); // 設(shè)置自定義字符的 CGRAM 地址
delay_nms(2);
LCD_write_dat(table1[k]); // 向CGRAM寫入自定義字符表的數(shù)據(jù)
k++;
delay_nms(2);
}
tmp=tmp+8;
}
LCD_dsp_string(1,1,"heart: ");//在第一行第一列顯示“heart”
for (i=0;i<4;i++)
{
LCD_dsp_char( 10+i,1,i);//在第一行第10列位置顯示心圖案的上半部
delay_nms(1);
}
for (i=4;i<8;i++)
{
LCD_dsp_char( 10+i-4,2,i);//在第二行第10列位置顯示心圖案的下半部
delay_nms(1);
}
while (1);
}
/************************ 感謝陳青華老師的幫助********************************************/