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#include <reg51.h>
sbit e=0xb0;//1011 0000
sbit rw=0xb1;//1011 0001
sbit rs=0xb2;//1011 0010
sbit cs2=0xb3;//1011 0011
sbit cs1=0xb4;//1011 0100
sbit busy=0xa7;//1010 0111
//PCtoLCD2002完美版陰碼，逐列式，順向
//漢字當前點陣大小16*16，字寬19，字高19
char code an[]= {
0x0A,0x10,0x32,0x10,0x22,0x10,0x23,0x90,0x2E,0xA0,0x62,0x60,
0x22,0x40,0x23,0xA0,0x22,0x20,0x2A,0x10,0x32,0x10,0x00,0x00,/*"安",0*/
};
char code ke[]= {
0x28,0xC0,0x2B,0x00,0x3F,0xF0,0x4A,0x00,0x49,0x00,0x00,0x80,
0x24,0x80,0x12,0x80,0x00,0x80,0x7F,0xF0,0x01,0x00,0x00,0x00,/*"科",0*/
};
void pulse()//puse=使能脈沖
{
e=1;
e=0;
}
void busy_check(char right)
{
P2=0xff;//數據口全部高電平
if (right==1)
{
P3=0x13;//0001 0011 CS1=1;CS2=0;RS=0;RW=1;RW=1;左半屏
while(!busy);
}
if (right==0)
{
P3=0x0b;//0000 1011 CS1=0;CS2=1;RS=0;RW=1;RW=1;右半屏
while(!busy);
}
}
void cmd_w(char cmd,char right)
{
busy_check(right);
if (right==1)
{
P3=0x10;//0001 0000 CS1=1
}
if (right==0)
{
P3=0x08;//0000 1000 CS2=0
P3=0x08;//0000 1000 CS2=0
}
P2=cmd;
pulse();//使能脈沖
}
void data_w(char dat,char right)
{
busy_check(right);
if (right==1)
{
P3=0x14;//0001 0100 CS1=1; RS=1;
}
if (right==0)
{
P3=0x0c;//0000 1100 CS2=1; RS=1;
}
P2=dat;
pulse();
}
void lcd_init()
{
unsigned int i;
cmd_w(0x3e+1,0);//顯示開關 0011 1111
cmd_w(0xc0+0,0);//修改顯示起始行 1100 0000
cmd_w(0xb8+0,0);//修改頁地址 1011 1000
cmd_w(0x40+0,0);//修改列地址 0100 0000
cmd_w(0x3e+1,1);
cmd_w(0xc0+0,1);
cmd_w(0xb8+0,1);
cmd_w(0x40+0,1);
for(i=0;i<256;i++)
{
data_w(0x00,0);
}
cmd_w(0xb8+4,0);//左邊頁地址+4
cmd_w(0x40+8,0);//左邊列地址+8
for(i=0;i<256;i++)
{
data_w(0x00,0);
}
for(i=0;i<256;i++)
{
data_w(0x00,1);
}
cmd_w(0xb8+4,1);//右邊頁地址+4
cmd_w(0x40+8,1);//右邊列地址+8
for(i=0;i<256;i++)
{
data_w(0x00,1);
}
}
char chang(char a)//chang(zhi[i])
{
char temp,i;
for(i=0;i<8;i++)
{
temp<<=1;//左移1位
temp|=(a&0x01);//temp=temp|(a&0x01)
a>>=1;//右移1位
}
return(temp);
}
void hanzi_w(char hang,char lie,char zhi[24])
{
unsigned char i;
if(lie<4)//漢字上半部分;左半屏
{
cmd_w(0xb8+1*hang,0);
cmd_w(0x40+1*lie,0);
for(i=0;i<24;i=i+2)
data_w(chang(zhi[i]),0);
}
else//漢字上半部分;右半屏
{
cmd_w(0xb8+1*hang,1);
cmd_w(0x40+1*(lie-4),1);
for(i=0;i<24;i+=2)
data_w(chang(zhi[i]),1);
}
if(lie<4)//漢字下半部分;左半屏
{
cmd_w(0xb8+1*hang+1,0);
cmd_w(0x40+1*lie,0);
for(i=1;i<24;i+=2)
data_w(chang(zhi[i]),0);
}
else//漢字下半部分;右半屏
{
cmd_w(0xb8+1*hang+1,1);
cmd_w(0x40+1*(lie-4),1);
for(i=1;i<24;i+=2)
data_w(chang(zhi[i]),1);
}
}
void delay(unsigned char a)
{
unsigned char i,j;
for(i=0;i<a;i++)
for(j=0;j<200;j++)
;
}
void main()
{
//unsigned char i;
lcd_init();
hanzi_w(0,0,an);
hanzi_w(2,0,ke);
while(1)
{
delay(3);
cmd_w(0xc0+1,0);
cmd_w(0xc0,1);
//i++;
//if(i==64)
//i=0;
}
}

復制代碼

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