void init_lcd(void) 
{
    write_ctrl(0x01);
    delayms(50);
    write_ctrl(0x11);
    delayms(150);

    write_ctrl(0xc5);	//VCOMH	
    write_data(0xb0);	//need to fine-tune
    write_ctrl(0xc6);	//VCOMAC	
    write_data(0x40);	//need to fine-tune

//--- Step2. Gamma initial setting ----

    write_ctrl(0xE0);	//VCOM=L
    write_data(0x04);	//V0
    write_data(0x0D);	//V1
    write_data(0x19);	//V2
    write_data(0x28);	//V61
    write_data(0x25);	//V62
    write_data(0x1C);	//V63
    write_data(0x2A);	//V13
    write_data(0x10);	//V50
    write_data(0x0B);	//V4
    write_data(0x09);	//V8
    write_data(0x08);	//V23	
    write_data(0x04);	//V40
    write_data(0x04);	//V55
    write_data(0x06);	//V59

    write_ctrl(0xE1);	// VCOM=H
    write_data(0x11);	//V0
    write_data(0x1F);	//V1
    write_data(0x22);	//V2
    write_data(0x17);	//V61
    write_data(0x0B);	//V62
    write_data(0x00);	//V63
    write_data(0x0F);	//V13
    write_data(0x29);	//V50
    write_data(0x06);	//V4
    write_data(0x04);	//V8
    write_data(0x04);	//V23
    write_data(0x07);	//V40
    write_data(0x08);	//V55
    write_data(0x0A);	//V59

//--- Step3. Adjust 0xC5 flicker ------

    write_ctrl(0x3a);
    write_data(0x05);   // 设置数据格式：0x05:65K色； 0x06:26万色

    write_ctrl(0x36);
    write_data(0x00);

    write_ctrl(0x29);
    delayms(150);
    
    write_ctrl(0x2A);
    write_data(0x00);
    write_data(0x00);
    write_data(0x00);
    write_data(0xEF);
    
    write_ctrl(0x2B);
    write_data(0x00);
    write_data(0x00);
    write_data(0x01);
    write_data(0x3F);

    write_ctrl(0x2C);
}


void address(uint8 xs,uint8 xe,uint8 ys,uint8 ye)
{
      write_ctrl(0x2a);
      write_data( (xs & 0xFF00) >> 8 );
      write_data( xs & 0x00FF );
      write_data( (xe & 0xFF00) >> 8 );
      write_data( xe & 0x00FF );
           
      write_ctrl(0x2b);
      write_data( (ys & 0xFF00) >> 8 );
      write_data( ys & 0x00FF );
      write_data( (ye & 0xFF00) >> 8 );
      write_data( ye & 0x00FF );
 
      write_ctrl(0x2c);
 }