12864-1.c

AVR12864液晶程序

#include <iom16v.h>		
#include <macros.h>
//-----------------------------------------------
#define uchar unsigned char	
#define uint unsigned int
//---------------引脚电平的宏定义
#define RS_H PORTC|=BIT(PC7)	 
#define RS_L PORTC&=~BIT(PC7) 
#define RW_H PORTC|=BIT(PC6)	 
#define RW_L PORTC&=~BIT(PC6)
#define E_H PORTC|=BIT(PC5)	 
#define E_L PORTC&=~BIT(PC5) 

#define uchar unsigned char 
#define uint unsigned int
//#pragma data:code
const uchar table[]="支持奥运中国加油";
const uchar table1[]="广东工业";
const uchar table2[]="信息工程";
const uchar table3[]="xuquanrui";
void delay(uint k)
{
    uint i,j;
	for(i=0;i<k;i++)
	for(j=0;j<1140;j++);
}



   void Init()
{
   DDRA=0XFF;
   DDRC|=BIT(5)|BIT(6)|BIT(7);
   write_com(0x30);//功能设定(见资料第六点)
   write_com(0x0c);//显示开关设置(见资料第四点)
   write_com(0x01);//清屏(见资料第一点）
   write_com(0x06);//进入设定点，游标(见资料第三点)
   write_com(0x02);//地址归0(见资料第二点)
  // write_com(0x07);
}

void write_com(uchar com)
{
     RS_L;
	 RW_L;
	 PORTA=com;
	 E_H;
	 delay(1);
	 E_L;
	 
}

void write_dat(uchar dat)
{
    RS_H;
	 RW_L;
	 PORTA=dat;
	 E_H;
	 delay(1);
	 E_L; 
}
read_data()
{
   uchar data;
   delay(5);
   RS_H;RW_H;
   DDRA=0; 
   E_H;NOP();
   data=PINA;
   delay(1);
   E_L;
   DDRA=0XFF;
  return (data);
}
void main()
{

   uchar i;
   Init();
   delay(5);
  write_com(0x80);


   for(i=0;i<16;i++)
   {
      write_dat(table[i]);
	  
	  delay(5);
	 }
	 
	 write_com(0x34); 
	  write_com(0X04);
	  write_com(0X05);
    write_com(0x30);  
	 write_com(0x90+2);
   for(i=0;i<8;i++)
   {
      write_dat(table1[i]);
	  
	  delay(5);
	 }
	 
	 write_com(0x34); 
	  write_com(0X04);
	  write_com(0X05);
    write_com(0x30);  
	while(1);
	/* write_com(0x90+2);
	 for(i=0;i<8;i++)
   {
      write_dat(table1[i]);
	  delay(5);
	 }
	
   write_com(0x88+2);
	 for(i=0;i<8;i++)
   {
      write_dat(table2[i]);
	  delay(5);
	 }
	 
	 write_com(0x98+2);
	 for(i=0;i<10;i++)
   {
      write_dat(table3[i]);
	  delay(5);
	 }
//write_com(0x34);
//write_com(0x06);
//write_com(0x80);
//write_com(0x30);

 */
}