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(0x36);
write_data(0x00);
//--------------------------------ST7789S Frame rate setting----------------------------------//
write_command(0xb2);
write_data(0x00);
write_data(0x00);
write_data(0x00);
write_data(0x33);
write_data(0x33);

write_command(0xb7);
write_data(0x35);

//---------------------------------ST7789S Power setting--------------------------------------//
write_command(0xb8);
write_data(0x2f);
write_data(0x2b);
write_data(0x2f);

write_command(0xbb);
write_data(0x24);//vcom

write_command(0xc0);
write_data(0x2C);

write_command(0xc3);
write_data(0x10);//17µ÷Éîdz

write_command(0xc4);
write_data(0x20);

write_command(0xc6);
write_data(0x11);

write_command(0xd0);
write_data(0xa4);
write_data(0xa1);

write_command(0xe8);
write_data(0x03);

write_command(0xe9);
write_data(0x0d);
write_data(0x12);
write_data(0x00);
//--------------------------------ST7789S gamma setting---------------------------------------//
write_command(0xe0);
write_data(0xd0);
write_data(0x00);
write_data(0x00);
write_data(0x08);
write_data(0x11);
write_data(0x1a);
write_data(0x2b);
write_data(0x33);
write_data(0x42);
write_data(0x26);
write_data(0x12);
write_data(0x21);
write_data(0x2f);
write_data(0x11);

write_command(0xe1);
write_data(0xd0);
write_data(0x02);
write_data(0x09);
write_data(0x0d);
write_data(0x0d);
write_data(0x27);
write_data(0x2b);
write_data(0x33);
write_data(0x42);
write_data(0x17);
write_data(0x12);
write_data(0x11);
write_data(0x2f);
write_data(0x31);

write_command(0x21); //·´ÏÔ

//*********SET RGB Interfae***************
write_command(0xB0); 
write_data(0x11); //set RGB interface and DE mode.
write_data(0x00); 
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(0x3a); 
write_data(0x55); //18 RGB ,55-16BIT RGB

//************************

write_command(0x2A); //Frame rate control
write_data(0x00);
write_data(0x00);
write_data(0x00);
write_data(0xEF);

write_command(0x2B); //Display function control
write_data(0x00);
write_data(0x00);
write_data(0x01);
write_data(0x3F);

write_command(0x11); 
delay(120);      //Delay 120ms 

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);

   }