Driver for ILI9844

ILI9844_Defines.h

// Change the width and height if required (defined in portrait mode)
// or use the constructor to over-ride defaults
#define TFT_WIDTH  320
#define TFT_HEIGHT 480

// Delay between some initialisation commands
#define TFT_INIT_DELAY 0x80 // Not used unless commandlist invoked


/**
 * Generic commands used by TFT_eSPI.cpp
 */
#define TFT_SWRST   0x01  // Software reset
#define TFT_CASET   0x2A  // Coloumn Address Set
#define TFT_PASET   0x2B  // Page address set
#define TFT_RAMWR   0x2C  // Memory write
#define TFT_RAMRD   0x2E  // Read Memory
//#define TFT_IDXRD   0xDD // ILI9341 only, indexed control register read


/**
 * For rotation function
 */
#define TFT_MADCTL  0x36  // 0x36
#define TFT_MAD_MY  0x80 // 0x80    128
#define TFT_MAD_MX  0x40 // 0x40    64
#define TFT_MAD_MV  0x20 // 0x20    32
#define TFT_MAD_ML  0x10 // 0x10    16
#define TFT_MAD_BGR 0x08
#define TFT_MAD_MH  0x04
#define TFT_MAD_RGB 0x00
#define TFT_INVOFF  0x20
#define TFT_INVON   0x21

ILI9844_Init.h

// This is the command sequence that initialises the ILI9844 driver
//
// This setup information uses simple 8 bit SPI writecommand() and writedata() functions
//
// See ST7735_Setup.h file for an alternative format

{
    writecommand(0xE0);
  writedata(0x00);
  writedata(0x03);
  writedata(0x09);
  writedata(0x08);
  writedata(0x16);
  writedata(0x0A);
  writedata(0x3F);
  writedata(0x78);
  writedata(0x4C);
  writedata(0x09);
  writedata(0x0A);
  writedata(0x08);
  writedata(0x16);
  writedata(0x1A);
  writedata(0x0F);
  

  writecommand(0XE1);
  writedata(0x00);
  writedata(0x16);
  writedata(0x19);
  writedata(0x03);
  writedata(0x0F);
  writedata(0x05);
  writedata(0x32);
  writedata(0x45);
  writedata(0x46);
  writedata(0x04);
  writedata(0x0E);
  writedata(0x0D);
  writedata(0x35);
  writedata(0x37);
  writedata(0x0F);
  
  
   
  writecommand(0XC0);      //Power Control 1 
  writedata(0x17);    //Vreg1out 
  writedata(0x15);    //Verg2out 
   
  writecommand(0xC1);      //Power Control 2     
  writedata(0x41);    //VGH,VGL 
   
  writecommand(0xC5);      //Power Control 3 
  writedata(0x00); 
  writedata(0x12);    //Vcom 
  writedata(0x80);
   
  writecommand(0x36);      //Memory Access 
  writedata(0x48); 
   
  writecommand(0x3A);      // Interface Pixel Format 
  writedata(0x31);     //18 bit    
   
  writecommand(0XB0);      // Interface Mode Control 
  writedata(0x80);            //SDO NOT USE
   
  writecommand(0xB1);      //Frame rate 
  writedata(0xA0);    //60Hz 
   
  writecommand(0xB4);      //Display Inversion Control 
  writedata(0x02);    //2-dot 
  //writedata(0x00);  
  //  writedata(0x18); 
   
  writecommand(0XB6);      //Display Function Control  RGB/MCU Interface Control 
  
  writedata(0x02);    //MCU 
  writedata(0x02);    //Source,Gate scan dieection 
    
  writecommand(0XE9);      // Set Image Functio
  writedata(0x00);    // Disable 24 bit data
   
  writecommand(0xF7);      // Adjust Control 
  writedata(0xA9);     
  writedata(0x51);     
  writedata(0x2C);     
  writedata(0x82);    // D7 stream, loose 

  writecommand(0x11); //Sleep out
  delay(120);
  writecommand(0x29);
 
}

ILI9844_Rotation.h

// This is the command sequence that rotates the ILI9844 (based of ILI9341) driver coordinate frame

  rotation = m % 8; // Limit the range of values to 0-7

  writecommand(TFT_MADCTL);
  switch (rotation) {
    case 0:
      writedata(TFT_MAD_MX | TFT_MAD_BGR);
      _width  = TFT_WIDTH;
      _height = TFT_HEIGHT;
      break;
    case 1:
      writedata(TFT_MAD_MV | TFT_MAD_BGR);
      _width  = TFT_HEIGHT;
      _height = TFT_WIDTH;
      break;
    case 2:
      writedata(TFT_MAD_MY | TFT_MAD_BGR);
      _width  = TFT_WIDTH;
      _height = TFT_HEIGHT;
      break;
    case 3:
      writedata(TFT_MAD_MX | TFT_MAD_MY | TFT_MAD_MV | TFT_MAD_BGR);
      _width  = TFT_HEIGHT;
      _height = TFT_WIDTH;
      break;
  // These next rotations are for bottum up BMP drawing
    case 4:
      writedata(TFT_MAD_MX | TFT_MAD_MY | TFT_MAD_BGR);
      _width  = TFT_WIDTH;
      _height = TFT_HEIGHT;
      break;
    case 5:
      writedata(TFT_MAD_MV | TFT_MAD_MX | TFT_MAD_BGR);
      _width  = TFT_HEIGHT;
      _height = TFT_WIDTH;
      break;
    case 6:
      writedata(TFT_MAD_BGR);
      _width  = TFT_WIDTH;
      _height = TFT_HEIGHT;
      break;
    case 7:
      writedata(TFT_MAD_MY | TFT_MAD_MV | TFT_MAD_BGR);
      _width  = TFT_HEIGHT;
      _height = TFT_WIDTH;
      break;

  }