内部升压（VBAT供电）
Internal  setting（Charge pump）
{
RES=1;  
   delay(1000);
   RES=0;   
   delay(1000);      
   RES=1;
   delay(1000);
write_i(0xAE);    /*display off*/       
       
       write_i(0x02);    /*set lower column address*/       
       write_i(0x10);    /*set higher column address*/
       
       write_i(0x40);    /*set display start line*/
       
       write_i(0xB0);    /*set page address*/
       
       write_i(0x81);    /*contract control*/
       write_i(0xff);    /*128*/
       
       write_i(0xA1);    /*set segment remap*/
      
       write_i(0xA6);    /*normal / reverse*/
       
       write_i(0xA8);    /*multiplex ratio*/
       write_i(0x3F);    /*duty = 1/64*/
       
       write_i(0xad);    /*set charge pump enable*/
       write_i(0x8b);     /*    0x8B    内供VCC   */
       
        write_i(0x33);    /*0X30---0X33  set VPP   9V */
       
       write_i(0xC8);    /*Com scan direction*/
       
       write_i(0xD3);    /*set display offset*/
       write_i(0x00);   /*   0x20  */
       
       write_i(0xD5);    /*set osc division*/
       write_i(0x80);    
       
       write_i(0xD9);    /*set pre-charge period*/
       write_i(0x1f);    /*0x22*/
       
       write_i(0xDA);    /*set COM pins*/
       write_i(0x12);
       
       write_i(0xdb);    /*set vcomh*/
       write_i(0x40);           
       
       write_i(0xAF);    /*display ON*/ 
      }   

void write_i(unsigned char ins)
{
	
   DC=0;
   CS=0;
   WR=1;
   P1=ins;       /*inst*/
   WR=0;
   WR=1;
   CS=1;
}

void write_d(unsigned char dat)
{ 
   DC=1;
   CS=0;
   WR=1;
   P1=dat;       /*data*/
   WR=0;
   WR=1;
   CS=1;
}


void delay(unsigned int i)							
{
   	while(i>0)
   	{
		i--;
   	}
}


VCC外部供电
External setting  
{
RES=1;  
   delay(1000);
   RES=0;   
   delay(1000);      
   RES=1;
   delay(1000);  
write_i(0xAE);    /*display off*/       
       
       write_i(0x02);    /*set lower column address*/       
       write_i(0x10);    /*set higher column address*/
       
       write_i(0x40);    /*set display start line*/
       
       write_i(0xB0);    /*set page address*/
       
       write_i(0x81);    /*contract control*/
       write_i(0xBF);    /*128*/
       
       write_i(0xA1);    /*set segment remap*/
      
       write_i(0xA6);    /*normal / reverse*/
       
       write_i(0xA8);    /*multiplex ratio*/
       write_i(0x3F);    /*duty = 1/64*/
       
       write_i(0xad);    /*set charge pump enable*/
       write_i(0x8a);     /*    0x8a    外供VCC   */
       
        write_i(0x32);    /*0X30---0X33  set VPP   8V */
       
       write_i(0xC8);    /*Com scan direction*/
       
       write_i(0xD3);    /*set display offset*/
       write_i(0x00);   /*   0x20  */
       
       write_i(0xD5);    /*set osc division*/
       write_i(0x80);    
       
       write_i(0xD9);    /*set pre-charge period*/
       write_i(0x22);    /*0x22*/
       
       write_i(0xDA);    /*set COM pins*/
       write_i(0x12);
       
        write_i(0xdb);    /*set vcomh*/
       write_i(0x40);  
       
       write_i(0xAF);    /*display ON*/
       } 
  
void write_i(unsigned char ins)
{
	
   DC=0;
   CS=0;
   WR=1;
   P1=ins;       /*inst*/
   WR=0;
   WR=1;
   CS=1;
}

void write_d(unsigned char dat)
{ 
   DC=1;
   CS=0;
   WR=1;
   P1=dat;       /*data*/
   WR=0;
   WR=1;
   CS=1;
}


void delay(unsigned int i)							
{
   	while(i>0)
   	{
		i--;
   	}
}