//***************************************************************
//
//*****    Focus LCDs     *****
//***** LCDs Made Simple  *****
//***** www.FocusLCDs.com *****
//
//***************************************************************
//
////NOTE:VCC=3.3V,
//*****************************************************
void write_command (unsigned char y) // (uchar y,uchar x)
{
  unsigned char i;
  cs=0;
  rs=0;
  for(i=0;i<8;i++)
    {
     scl=0;
      if (y&0x80)
        {
          sdi=1;
          }
          else
         {
          sdi=0;
      }
       scl=1;
      y=y<<1;
    }
cs=1;
}
//**************************************************************
void write_data(unsigned char w) // (uchar w, uchar v)
{
  unsigned char i;
cs=0;
rs=1;
for(i=0;i<8;i++)
 {
  scl=0;
     if (w&0x80)
 {
        sdi=1;
    }
         else
       {
         sdi=0;
         } 
        scl=1;
      w=w<<1;
    }
cs=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(0x05);
write_data(0x05);
write_data(0x00);
write_data(0x33);
write_data(0x33);

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

//---------------------------------ST7789S Power setting--------------------------------------//

write_command(0xbb);
write_data(0x3F);//vcom

write_command(0xc0);
write_data(0x2C);//17����dz

write_command(0xc2);
write_data(0x01);//

write_command(0xc3);
write_data(0x0F);//

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(0x09);
write_data(0x09);
write_data(0x08);
//--------------------------------ST7789S gamma setting---------------------------------------//
write_command(0xe0);
write_data(0xd0);
write_data(0x05);
write_data(0x09);
write_data(0x09);
write_data(0x08);
write_data(0x14);
write_data(0x28);
write_data(0x33);
write_data(0x3F);
write_data(0x07);
write_data(0x13);
write_data(0x14);
write_data(0x28);
write_data(0x30);

write_command(0xe1);
write_data(0xd0);
write_data(0x05);
write_data(0x09);
write_data(0x09);
write_data(0x08);
write_data(0x03);
write_data(0x24);
write_data(0x32);
write_data(0x32);
write_data(0x3B);
write_data(0x38);
write_data(0x14);
write_data(0x13);
write_data(0x28);
write_data(0x2F);

write_command(0x21); //����

//*********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(0x66); //66-18 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 LCD_Enter_Standby(void)
{
   write_command(0x28);//display off
   delay(10);
  write_command(0x10);
  RGB_OFF();
 
   }
void LCD_Exit_Standby (void)
{
  RGB_ON();
  elay(100);
   write_command(0x11);// Exit Sleep/ Standby mode
   delay(120);
   write_command(0x29);
  }
//*****************************************************