Adafruit_ILI9341_8bit.h

/*
	This is a library for the Teensy 3.2 (but any Teensy 3.0 through Teensy 3.6 will
	work).

	How to connect:

	First find the pins for PORTC bits 0 through 7. These pins can be found for all
	Teensys at https://www.pjrc.com/teensy/schematic.html in the schematics.

	Connect the pins for PORTC bits 0 through 7 to the LCD data bits 0 through 7.

	For the Teensy 3.2 this means that:
	LCD_D0 = digital pin 15 (PORTC bit 0)
	LCD_D1 = digital pin 22 (PORTC bit 1)
	LCD_D2 = digital pin 23 (PORTC bit 2)
	LCD_D3 = digital pin 9  (PORTC bit 3)
	LCD_D4 = digital pin 10 (PORTC bit 4)
	LCD_D5 = digital pin 13 (PORTC bit 5)
	LCD_D6 = digital pin 11 (PORTC bit 6)
	LCD_D7 = digital pin 12 (PORTC bit 7)

	The LCD Control Pins are connected in the following way:
	TFT_RD         = digital pin 21
	TFT_WR         = digital pin 20
	TFT_RS         = digital pin 19
	TFT_CS         = digital pin 18
	TFT_RST        = digital pin 17

	Run sketch.ino to test the ILI9341 display.

	Here are the benchmark results:
	Benchmark Time (microseconds)
	Screen fill 88319
	Text 12309
	Lines 87538
	Horiz/Vert Lines 7062
	Rectangles (outline) 4670
	Rectangles (filled) 183556
	Circles (filled) 35540
	Circles (outline) 35868
	Triangles (outline) 27423
	Triangles (filled) 62862
	Rounded rects (outline) 14888
	Rounded rects (filled) 200625
*/

#ifndef _ADAFRUIT_ILI9341H_
#define _ADAFRUIT_ILI9341H_

#include "Print.h"
#include <Adafruit_GFX.h>

#define ILI9341_TFTWIDTH 240
#define ILI9341_TFTHEIGHT 320

#define ILI9341_NOP 0x00
#define ILI9341_SWRESET 0x01
#define ILI9341_RDDID 0xD3
#define ILI9341_RDDST 0x09

#define ILI9341_SLPIN 0x10
#define ILI9341_SLPOUT 0x11
#define ILI9341_PTLON 0x12
#define ILI9341_NORON 0x13

#define ILI9341_RDMODE 0x0A
#define ILI9341_RDMADCTL 0x0B
#define ILI9341_RDPIXFMT 0x0C
#define ILI9341_RDIMGFMT 0x0D
#define ILI9341_RDSELFDIAG 0x0F

#define ILI9341_INVOFF 0x20

#define ILI9341_INVON 0x21

#define ILI9341_GAMMASET 0x26

#define ILI9341_DISPOFF 0x28

#define ILI9341_DISPON 0x29

#define ILI9341_CASET 0x2A

#define ILI9341_PASET 0x2B

#define ILI9341_RAMWR 0x2C

#define ILI9341_RAMRD 0x2E

#define ILI9341_PTLAR 0x30

#define ILI9341_MADCTL 0x36

#define ILI9341_PIXFMT 0x3A

#define ILI9341_FRMCTR1 0xB1

#define ILI9341_FRMCTR2 0xB2

#define ILI9341_FRMCTR3 0xB3

#define ILI9341_INVCTR 0xB4

#define ILI9341_DFUNCTR 0xB6

#define ILI9341_PWCTR1 0xC0

#define ILI9341_PWCTR2 0xC1

#define ILI9341_PWCTR3 0xC2

#define ILI9341_PWCTR4 0xC3

#define ILI9341_PWCTR5 0xC4

#define ILI9341_VMCTR1 0xC5

#define ILI9341_VMCTR2 0xC7

#define ILI9341_RDID1 0xDA

#define ILI9341_RDID2 0xDB

#define ILI9341_RDID3 0xDC

#define ILI9341_RDID4 0xDD

#define ILI9341_GMCTRP1 0xE0

#define ILI9341_GMCTRN1 0xE1

/*
#define ILI9341_PWCTR6  0xFC
*/

// Color definitions

#define ILI9341_BLACK 0x0000 /*   0,   0,   0 */

#define ILI9341_NAVY 0x000F /*   0,   0, 128 */

#define ILI9341_DARKGREEN 0x03E0 /*   0, 128,   0 */

#define ILI9341_DARKCYAN 0x03EF /*   0, 128, 128 */

#define ILI9341_MAROON 0x7800 /* 128,   0,   0 */

#define ILI9341_PURPLE 0x780F /* 128,   0, 128 */

#define ILI9341_OLIVE 0x7BE0 /* 128, 128,   0 */

#define ILI9341_LIGHTGREY 0xC618 /* 192, 192, 192 */

#define ILI9341_DARKGREY 0x7BEF /* 128, 128, 128 */

#define ILI9341_BLUE 0x001F /*   0,   0, 255 */

#define ILI9341_GREEN 0x07E0 /*   0, 255,   0 */

#define ILI9341_CYAN 0x07FF /*   0, 255, 255 */

#define ILI9341_RED 0xF800 /* 255,   0,   0 */

#define ILI9341_MAGENTA 0xF81F /* 255,   0, 255 */

#define ILI9341_YELLOW 0xFFE0 /* 255, 255,   0 */

#define ILI9341_WHITE 0xFFFF /* 255, 255, 255 */

#define ILI9341_ORANGE 0xFD20 /* 255, 165,   0 */

#define ILI9341_GREENYELLOW 0xAFE5 /* 173, 255,  47 */

#define ILI9341_PINK 0xF81F

/*
Define pins and Output Data Registers
*/

#define TFT_DATA GPIOC_PSOR

#define TFT_RD 21

#define TFT_WR 20

#define TFT_RS 19

#define TFT_CS 18

#define TFT_RST 17

#define RD_IDLE digitalWriteFast(TFT_RD, HIGH)
#define RD_ACTIVE digitalWriteFast(TFT_RD, LOW)
#define WR_IDLE digitalWriteFast(TFT_WR, HIGH)
#define WR_ACTIVE digitalWriteFast(TFT_WR, LOW)
#define CD_COMMAND digitalWriteFast(TFT_RS, LOW)
#define CD_DATA digitalWriteFast(TFT_RS, HIGH)
#define CS_IDLE digitalWriteFast(TFT_CS, HIGH)
#define CS_ACTIVE digitalWriteFast(TFT_CS, LOW)

// If you are not using Teensy 3.2 change these pins!
#define D0 15
#define D1 22
#define D2 23
#define D3 9
#define D4 10
#define D5 13
#define D6 11
#define D7 12

class Adafruit_ILI9341_8bit_STM : public Adafruit_GFX {
 public:
  Adafruit_ILI9341_8bit_STM(void);

  void begin(void),

      setAddrWindow(uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1),

      pushColor(uint16_t color),

      fillScreen(uint16_t color),

      drawPixel(int16_t x, int16_t y, uint16_t color),

      drawFastVLine(int16_t x, int16_t y, int16_t h, uint16_t color),

      drawFastHLine(int16_t x, int16_t y, int16_t w, uint16_t color),

      fillRect(int16_t x, int16_t y, int16_t w, int16_t h,

               uint16_t color),

      setRotation(uint8_t r),

      invertDisplay(boolean i);

  uint16_t color565(uint8_t r, uint8_t g, uint8_t b);

  /* These are not for current use, 8-bit protocol only! */

  // uint8_t  readdata(void),

  uint8_t readcommand8(uint8_t reg);

  uint32_t readID(void);

  uint8_t tabcolor;

  uint8_t read8(void);

  void setReadDataBus(void),

      setWriteDataBus(void),

      write8(uint8_t),

      writecommand(uint8_t c),

      writedata(uint8_t d);
};

#endif  // _ADAFRUIT_ILI9341H_