单片机C语言实例-377-12864不带字库
#include<reg51.h>
#include<intrins.h>
sbit CS1=P2^3;
sbit CS2=P2^4;
sbit RST=P2^5;
sbit DI=P2^0;
sbit RW=P2^1;
sbit ALE=P2^2;
unsigned char COM;//指令数据寄存器
unsigned char DAT;//显示数据寄存器
#ifndef __WRITE_12864_H__
//软件复位程序
void IntRst(void)
{
unsigned char i;
RST=0;
i=0;
i=1;
RST=1; //软件复位
}
//12864发送命令子程序
void ComSend(void)
{ unsigned char i;
unsigned char temp;
DI=0;
RW=1;
do { P0=0xff;
ALE=1;
i=0;
temp=P0;
ALE=0;
} while((temp&0x80)==1); //读BUSY信号
RW=0;
P0=COM;
ALE=1;
i=0; //NOP
ALE=0;
}
//12864发送数据子程序
void DaSend(void)
{ unsigned char i;
unsigned char temp;
DI=0;
RW=1;
do {P0=0xff;
ALE=1;
i=0;
temp=P0;
ALE=0;
}while((temp&0x80)==1); //读BUSY信号
DI=1;
RW=0;
P0=DAT;
ALE=1;
i=0; //NOP
ALE=0;
}
//左半屏写命令子程序
void Left_ComSend(void)
{
CS2=0;CS1=1;
ComSend();
CS1=0;
}
//左半屏写数据子程序
void Left_DaSend(void)
{
CS2=0;CS1=1;
DaSend();
CS1=0;
}
//右半屏写命令子程序
void Right_ComSend(void)
{
CS1=0;CS2=1;
ComSend();
CS2=0;
}
//右半屏写数据子程序
void Right_DaSend(void)
{
CS1=0;CS2=1;
DaSend();
CS2=0;
}
//左半屏写一个字节数据程序,
//入口参数为X,Y的起始地址
//以及Y的变址范围(写入的字节数)和写入数据的指针
void Left_Bytes_DaSend(unsigned char x,unsigned char y,unsigned char *loc,unsigned char bytes)
{ unsigned char i;
COM=(x|0xB8); //填入特征位0xB8
Left_ComSend(); //定位X
COM=(y|0x40); //填入特征位0x40
Left_ComSend(); //定位Y
for(i=0;i<bytes;i++)
{
DAT=*(loc+i);
Left_DaSend();
}
}
//右半屏写一个字节数据程序,
//入口参数为X,Y的起始地址
//以及Y的变址范围(写入的字节数)和写入数据的指针
void Right_Bytes_DaSend(unsigned char x,unsigned char y,unsigned char *loc,unsigned char bytes)
{ unsigned char i;
COM=(x|0xB8); //填入特征位0xB8
Right_ComSend(); //定位X
COM=(y|0x40); //填入特征位0x40
Right_ComSend(); //定位Y
for(i=0;i<bytes;i++)
{
DAT=*(loc+i);
Right_DaSend();
}
}
//开LCD
void Lcd_On(void)
{
COM=0x3F;
Left_ComSend();
Right_ComSend();
}
/*
//关LCD
void Lcd_Off(void)
{
COM=0x3e;
Left_ComSend();
Right_ComSend();
}
*/
//设置Z地址
void Lcd_Z(unsigned char z)
{
COM=(z|0xc0);
Left_ComSend();
Right_ComSend();
}
unsigned char code tabe[]=
{
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//清屏
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x10,0x21,0x86,0x70,0x00,0x7E,0x4A,0x4A, //温
0x4A,0x4A,0x4A,0x7E,0x00,0x00,0x00,0x00,
0x02,0xFE,0x01,0x40,0x7F,0x41,0x41,0x7F,
0x41,0x41,0x7F,0x41,0x41,0x7F,0x40,0x00,
0x80,0x40,0xF0,0x2C,0x43,0x20,0x98,0x0F,//你
0x0A,0xE8,0x08,0x88,0x28,0x1C,0x08,0x00,
0x00,0x00,0x7F,0x00,0x10,0x0C,0x03,0x21,
0x40,0x3F,0x00,0x00,0x03,0x1C,0x08,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0xFE,0xFE,0xFE,0xE0,0xE0,0xE0,0xE0,0xE0,0xE0,0x00,
0x07,0x07,0x07,0x07,0x07,0x07,0x7F,0x7F,0x7F,0x00,0x00,0x00,0x00,0x00,0x00,0x00
};
void Clean_Lcd(void)
{
unsigned char i,*p;
p=tabe;
for(i=0;i<8;i++)
{
Left_Bytes_DaSend( i, 0, p,32);
Left_Bytes_DaSend( i, 32, p,32);
Right_Bytes_DaSend( i, 0, p,32);
Right_Bytes_DaSend( i, 32, p,32);
}
}
void write_Code(unsigned char *pon,unsigned char hang,unsigned char lei) //pon字表的位置列数1=<lei<=8,行数1=<hang<=4，
{
unsigned char *str; str=pon+32;
switch(hang){case 1: hang=0;break;
case 2: hang=2;break;
case 3: hang=4;break;
case 4: hang=6;break;
}
switch(lei){ case 1: lei=0;break;
case 2: lei=16;break;
case 3: lei=32;break;
case 4: lei=48;break;
case 5: lei=64;break;
case 6: lei=80;break;
case 7: lei=96;break;
case 8: lei=112;break;
}
if(lei<64){ Left_Bytes_DaSend( hang, lei,str,16);
str=str+16;hang++;
Left_Bytes_DaSend( hang, lei,str,16);
}
else{lei=lei-64; Right_Bytes_DaSend( hang, lei,str,16);
str=str+16;hang++;
Right_Bytes_DaSend( hang, lei,str,16);
}
}
void Main()
{ //unsigned char *p;
IntRst(); //软件复位
Lcd_On(); //开显示
Clean_Lcd(); //清屏
write_Code(tabe+32,1,4);
while(1);
/* p=tabe;
p=p+64; Left_Bytes_DaSend( 0, 0, p,16);
p=p+16; Left_Bytes_DaSend( 1, 0, p,16);
p=tabe;p=p+64;
Right_Bytes_DaSend( 0, 0, p,16);
p=p+16;
Right_Bytes_DaSend( 1, 0, p,16);
*/
}
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