?? lcd.h
字號:
#define DataPort P0
sbit CS1=P2^7;
sbit CS2=P2^6;
sbit DI=P2^5;
sbit R_W=P2^4;
sbit E=P2^3;
//寫顯示數據
void write_data(uchar dat)
{
DI=1;
R_W=0;
DataPort=dat;
E=1;
E=0;
}
//發送指令
void send_data(uchar dat)
{
DI=0;
R_W=0;
DataPort=dat;
E=1;
E=0;
}
//顯示開關
void display_onoff(uchar onoff)
{
onoff&=0x3f;
onoff|=0x3e;
send_data(onoff);
}
/*//設置起始行地址(0-63)
void set_start_line(uchar start_line)
{
start_line|=0xc0;
send_data(start_line);
}*/
//設置行地址(0-7)
void set_line(uchar line)
{
line&=0xbf;
line|=0xb8;
send_data(line);
}
//設置列地址(0-63)
void set_column(uchar column)
{
column&=0x7f;
column|=0x40;
send_data(column);
}
//選擇半屏
void select_screem(uchar screem)
{
switch(screem)
{ case 0:
CS1=0;
CS2=0;
break;
case 1:
CS1=1;
CS2=0;
break;
case 2:
CS1=0;
CS2=1;
break;
case 3:
CS1=1;
CS2=1;
break;
default:
break;
}
}
//clear screem
void clear_screem(uchar screem)
{ uchar i,j;
select_screem(screem);
for(i=0;i<8;i++)
{
set_line(i);
for(j=0;j<64;j++)
{ set_column(j);
write_data(0x00);
}
}
}
//顯示8*8點陣單元
void show_unit(uchar line,uchar column,uchar * address)
{
uchar i;
if(column<64)
{
select_screem(1);
set_line(line);
set_column(column);
for(i=0;i<8;i++)
{
if(column+i>63)
{
select_screem(2);
set_column(column-64+i);
write_data(*(address+i));
}
else
{ write_data(*(address+i));}
}
}
else
{
select_screem(2);
column-=64;
set_line(line);
set_column(column);
for(i=0;i<8;i++)
{
if(column+i>63)
{
select_screem(1);
set_column(column-64+i);
write_data(*(address+i));
}
else
{ write_data(*(address+i)); }
}
}
}
//顯示16*8點陣字符
void show_number(uchar line ,uchar column,uchar num)
{ uchar * address;
address=&number[num][0];
show_unit(line,column,address);
show_unit(line+1,column,address+8);
}
//顯示16*16點陣漢字
void show_china(uchar line ,uchar column,uchar num)
{
uchar * address;
address=&china[num][0];
show_unit(line,column,address);
show_unit(line,column+8,address+8);
show_unit(line+1,column,address+16);
show_unit(line+1,column+8,address+24);
}
void Init_LCD(void)
{
uchar i=2000; //延時
while(i--);
display_onoff(1);
clear_screem(1);
clear_screem(2);
//set_start_line(1);
//show_number(0,0,0);
}
?? 快捷鍵說明
復制代碼
Ctrl + C
搜索代碼
Ctrl + F
全屏模式
F11
切換主題
Ctrl + Shift + D
顯示快捷鍵
?
增大字號
Ctrl + =
減小字號
Ctrl + -