NOTE:VCI=3.3V
//****************************************************************
void write_command (unsigned char y) // (uchar y,uchar x)
{
  unsigned char i;
csb=0;
sclb=0;
sdi=0;
sclb=1;
for(i=0;i<8;i++)
    {
     sclb=0;      
      if (y&0x80)
       {
          sdi=1;
        }
          else
         {
          sdi=0;
         }
       sclb=1;
      y=y<<1;
    }
csb=1;
}
//***************************************************************
void write_data(unsigned char w) // (uchar w, uchar v)
{
  unsigned char i;
csb=0;
sclb=0;
sdi=1;
sclb=1;
for(i=0;i<8;i++)
 {
  sclb=0;
     if (w&0x80)
     {
        sdi=1;
       }
          else
        {
         sdi=0;
        }
   sclb=1;
   w=w<<1;
    }
csb=1;
}
/*************************************************/
void initi(void)
{
   res=1;
   delay(1);
   res=0;
   delay(10);
   res=1;
   delay(120);
//--------------------------------ST7789S Frame rate setting----------------------------------//
write_command(0x11); 
delay(120);      //Delay 120ms 

write_command(0x36);			
write_data(0x00);

write_command(0x3A);			
write_data(0x55);//65K

write_command(0xB2);			
write_data(0x0C);
write_data(0x0C); 
write_data(0x00); 
write_data(0x33); 
write_data(0x33); 			

write_command(0xB7);//VGH VGL			
write_data(0x35);

write_command(0xBB);			
write_data(0x32); //Vcom=1.35V
												  	
write_command(0xC2);			
write_data(0x01);

write_command(0xC3);			
write_data(0x19); //GVDD=4.8V 
													  
write_command(0xC4);			
write_data(0x20); //VDV, 0x20:0v

write_command(0xC6);			
write_data(0x0F); //0x0F:60Hz        	

write_command(0xD0);			
write_data(0xA4);
write_data(0xA1); 											  												  																								
	    
write_command(0xE0);  //GAMMA   
write_data(0xD0);   
write_data(0x08);   
write_data(0x0E);   
write_data(0x09);   
write_data(0x09);   
write_data(0x05);   
write_data(0x31);   
write_data(0x33);   
write_data(0x48);   
write_data(0x17);   
write_data(0x14);   
write_data(0x15);   
write_data(0x31);   
write_data(0x34);   

write_command(0xE1); //GAMMA    
write_data(0xD0);   
write_data(0x08);   
write_data(0x0E);   
write_data(0x09);   
write_data(0x09);   
write_data(0x15);   
write_data(0x31);   
write_data(0x33);   
write_data(0x48);   
write_data(0x17);   
write_data(0x14);   
write_data(0x15);   
write_data(0x31);   
write_data(0x34);   

write_command(0x21);
//*********SET RGB Interfae***************
write_command(0xB0); 
write_data(0x11); //set RGB interface
write_data(0x00); 

write_command(0xB1); 
write_data(0x40); // set DE mode ; SET Hs,Vs,DE,DOTCLK signal polarity 
write_data(0x00); 
write_data(0x00); 
//************************

write_command(0x29); //display on
write_command(0x2c); 
}
//*********************************************************************
void EnterSleep (void)
{
    write_command(0x28);
    delay(20);
    write_command(0x10); 

    RGB_OFF();
   delay(50);
  }

//*********************************************************
void ExitSleep (void)

 {
    RGB_ON();
    delay(20);
    write_command(0x11);
    delay(120);
    write_command(0x29);

   }