//VCI=3.3V
//***********************寄存器指令*****************************************
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;
}
//**************************寄存器数据*************************************
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;
}


//********************送显示数据*********************************
void write_data2(unsigned char data_l,data_h)
{
 unsigned char a,i,b;
csb=0;
sclb=0;
sdi=1;
sclb=1;
a=data_l;
for(i=0;i<8;i++)
 {
    sclb=0;
     if (a&0x80) 
      {
        sdi=1; 
         }
          else
       { 
         sdi=0;
         }
  sclb=1;
   a=a<<1;
    }
csb=0;
sclb=0;
sdi=1;
sclb=1;
b=data_h;
for(i=0;i<8;i++)
 {
  sclb=0;
     if (b&0x80)
  {
        sdi=1;
}
          else
{
         sdi=0;
}
  sclb=1;
   b=b<<1;
    }
csb=1;
}
/*************************************************/
void initi(void)
{ 
   res=1;
   delay(1);
   res=0;
   delay(10);
   res=1;
   delay(120);
//************************************************
write_command(0x36); 
write_data(0x00);

write_command(0x3a); 
write_data(0x05);

//----------ST7789S Frame rate setting-------------------// 
write_command(0xb2); 
write_data(0x0c); 
write_data(0x0c); 
write_data(0x00); 
write_data(0x33); 
write_data(0x33); 

write_command(0xb7); 
write_data(0x35); 
//-----------ST7789S Power setting---------------------// 
write_command(0xbb); 
write_data(0x38); 

write_command(0xc0); 
write_data(0x2c); 

write_command(0xc2); 
write_data(0x01);
 
write_command(0xc3); 
write_data(0x1d); 

write_command(0xc4); 
write_data(0x20);
 
write_command(0xc6); 
write_data(0x0f); 

write_command(0xd0); 
write_data(0xa4); 
write_data(0xa1); 
//---------------ST7789S gamma setting-----------------------// 
write_command(0xe0); 
write_data(0xd0); 
write_data(0x1E); 
write_data(0x24); 
write_data(0x0A); 
write_data(0x0A); 
write_data(0x26); 
write_data(0x44); 
write_data(0x44); 
write_data(0x57); 
write_data(0x29); 
write_data(0x14); 
write_data(0x14); 
write_data(0x30); 
write_data(0x34); 

write_command(0xe1); 
write_data(0xd0); 
write_data(0x1E); 
write_data(0x23); 
write_data(0x0A); 
write_data(0x09); 
write_data(0x25); 
write_data(0x43); 
write_data(0x33); 
write_data(0x56); 
write_data(0x28); 
write_data(0x14); 
write_data(0x14); 
write_data(0x2F); 
write_data(0x34); 

write_command(0x21); 

write_command(0x2A); //Frame rate control 240
write_data(0x00);
write_data(0x00);
write_data(0x00);
write_data(0xEF);

write_command(0x2B); //Display function control 240
write_data(0x00);
write_data(0x00);
write_data(0x00);
write_data(0xeF);

write_command(0x11); 
delay(500);      //Delay 120ms 

write_command(0x29); //display on
delay(50);   
write_command(0x2c); 

  }

//*********************************************************************************************
void EnterSleep (void)
{
    write_command(0x28);
    delay(20);
    write_command(0x10);
  
  }

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

 {
    write_command(0x11);
    delay(120);
    write_command(0x29);
}