GxEPD2_it78_1872x1404 Class Reference

#include <GxEPD2_it78_1872x1404.h>

Inheritance diagram for GxEPD2_it78_1872x1404:

Public Member Functions
	GxEPD2_it78_1872x1404 (int16_t cs, int16_t dc, int16_t rst, int16_t busy)
void	init (uint32_t serial_diag_bitrate=0)
void	init (uint32_t serial_diag_bitrate, bool initial, uint16_t reset_duration=20, bool pulldown_rst_mode=false)
void	clearScreen (uint8_t value=0x33)
void	writeScreenBuffer (uint8_t value=0x33)
void	writeImage (const uint8_t bitmap[], int16_t x, int16_t y, int16_t w, int16_t h, bool invert=false, bool mirror_y=false, bool pgm=false)
void	writeImagePart (const uint8_t bitmap[], int16_t x_part, int16_t y_part, int16_t w_bitmap, int16_t h_bitmap, int16_t x, int16_t y, int16_t w, int16_t h, bool invert=false, bool mirror_y=false, bool pgm=false)
void	writeImage (const uint8_t *black, const uint8_t *color, int16_t x, int16_t y, int16_t w, int16_t h, bool invert=false, bool mirror_y=false, bool pgm=false)
void	writeImagePart (const uint8_t *black, const uint8_t *color, int16_t x_part, int16_t y_part, int16_t w_bitmap, int16_t h_bitmap, int16_t x, int16_t y, int16_t w, int16_t h, bool invert=false, bool mirror_y=false, bool pgm=false)
void	writeNative (const uint8_t *data1, const uint8_t *data2, int16_t x, int16_t y, int16_t w, int16_t h, bool invert=false, bool mirror_y=false, bool pgm=false)
void	drawImage (const uint8_t bitmap[], int16_t x, int16_t y, int16_t w, int16_t h, bool invert=false, bool mirror_y=false, bool pgm=false)
void	drawImagePart (const uint8_t bitmap[], int16_t x_part, int16_t y_part, int16_t w_bitmap, int16_t h_bitmap, int16_t x, int16_t y, int16_t w, int16_t h, bool invert=false, bool mirror_y=false, bool pgm=false)
void	drawImage (const uint8_t *black, const uint8_t *color, int16_t x, int16_t y, int16_t w, int16_t h, bool invert=false, bool mirror_y=false, bool pgm=false)
void	drawImagePart (const uint8_t *black, const uint8_t *color, int16_t x_part, int16_t y_part, int16_t w_bitmap, int16_t h_bitmap, int16_t x, int16_t y, int16_t w, int16_t h, bool invert=false, bool mirror_y=false, bool pgm=false)
void	drawNative (const uint8_t *data1, const uint8_t *data2, int16_t x, int16_t y, int16_t w, int16_t h, bool invert=false, bool mirror_y=false, bool pgm=false)
void	refresh (bool partial_update_mode=false)
void	refresh (int16_t x, int16_t y, int16_t w, int16_t h)
void	powerOff ()
void	hibernate ()
Public Member Functions inherited from GxEPD2_EPD
	GxEPD2_EPD (int16_t cs, int16_t dc, int16_t rst, int16_t busy, int16_t busy_level, uint32_t busy_timeout, uint16_t w, uint16_t h, GxEPD2::Panel p, bool c, bool pu, bool fpu)
virtual void	writeImageForFullRefresh (const uint8_t bitmap[], int16_t x, int16_t y, int16_t w, int16_t h, bool invert=false, bool mirror_y=false, bool pgm=false)
virtual void	writeScreenBufferAgain (uint8_t value=0xFF)
virtual void	writeImageAgain (const uint8_t bitmap[], int16_t x, int16_t y, int16_t w, int16_t h, bool invert=false, bool mirror_y=false, bool pgm=false)
virtual void	writeImagePartAgain (const uint8_t bitmap[], int16_t x_part, int16_t y_part, int16_t w_bitmap, int16_t h_bitmap, int16_t x, int16_t y, int16_t w, int16_t h, bool invert=false, bool mirror_y=false, bool pgm=false)
virtual void	setPaged ()
void	setBusyCallback (void(*busyCallback)(const void *), const void *busy_callback_parameter=0)
void	selectSPI (SPIClass &spi, SPISettings spi_settings)

Static Public Attributes
static const uint16_t	WIDTH = 1872
static const uint16_t	HEIGHT = 1404
static const GxEPD2::Panel	panel = GxEPD2::ED078KC2
static const bool	hasColor = false
static const bool	hasPartialUpdate = true
static const bool	hasFastPartialUpdate = true
static const uint16_t	reset_to_ready_time = 1800
static const uint16_t	power_on_time = 10
static const uint16_t	power_off_time = 250
static const uint16_t	full_refresh_time = 650
static const uint16_t	partial_refresh_time = 300
static const uint16_t	refresh_cmd_time = 10
static const uint16_t	refresh_par_time = 2
static const uint16_t	default_wait_time = 1
static const uint16_t	diag_min_time = 3
static const uint16_t	set_vcom_time = 500

Additional Inherited Members
Static Public Member Functions inherited from GxEPD2_EPD
static uint16_t	gx_uint16_min (uint16_t a, uint16_t b)
static uint16_t	gx_uint16_max (uint16_t a, uint16_t b)
Public Attributes inherited from GxEPD2_EPD
const uint16_t	WIDTH
const uint16_t	HEIGHT
const GxEPD2::Panel	panel
const bool	hasColor
const bool	hasPartialUpdate
const bool	hasFastPartialUpdate
Protected Member Functions inherited from GxEPD2_EPD
void	_reset ()
void	_waitWhileBusy (const char *comment=0, uint16_t busy_time=5000)
void	_writeCommand (uint8_t c)
void	_writeData (uint8_t d)
void	_writeData (const uint8_t *data, uint16_t n)
void	_writeDataPGM (const uint8_t *data, uint16_t n, int16_t fill_with_zeroes=0)
void	_writeDataPGM_sCS (const uint8_t *data, uint16_t n, int16_t fill_with_zeroes=0)
void	_writeCommandData (const uint8_t *pCommandData, uint8_t datalen)
void	_writeCommandDataPGM (const uint8_t *pCommandData, uint8_t datalen)
void	_startTransfer ()
void	_transfer (uint8_t value)
void	_endTransfer ()
Protected Attributes inherited from GxEPD2_EPD
int16_t	_cs
int16_t	_dc
int16_t	_rst
int16_t	_busy
int16_t	_busy_level
uint32_t	_busy_timeout
bool	_diag_enabled
bool	_pulldown_rst_mode
SPIClass *	_pSPIx
SPISettings	_spi_settings
bool	_initial_write
bool	_initial_refresh
bool	_power_is_on
bool	_using_partial_mode
bool	_hibernating
uint16_t	_reset_duration
void(*	_busy_callback )(const void *)
const void *	_busy_callback_parameter

Detailed Description

Definition at line 22 of file GxEPD2_it78_1872x1404.h.

Constructor & Destructor Documentation

GxEPD2_it78_1872x1404()

GxEPD2_it78_1872x1404::GxEPD2_it78_1872x1404	(	int16_t	cs,
		int16_t	dc,
		int16_t	rst,
		int16_t	busy )

Definition at line 58 of file GxEPD2_it78_1872x1404.cpp.

                                                                                              :
  GxEPD2_EPD(cs, dc, rst, busy, LOW, 10000000, WIDTH, HEIGHT, panel, hasColor, hasPartialUpdate, hasFastPartialUpdate),
  _spi_settings(24000000, MSBFIRST, SPI_MODE0),
  _spi_settings_for_read(1000000, MSBFIRST, SPI_MODE0)
{
}

Member Function Documentation

clearScreen()

void GxEPD2_it78_1872x1404::clearScreen ( uint8_t value = 0x33 )

virtual

Implements GxEPD2_EPD.

Definition at line 108 of file GxEPD2_it78_1872x1404.cpp.

{
  _initial_write = false; // initial full screen buffer clean done
  if (_initial_refresh) _Init_Full();
  else _Init_Part();
  _initial_refresh = false;
  _setPartialRamArea(0, 0, WIDTH, HEIGHT);
  SPI.beginTransaction(_spi_settings);
  if (_cs >= 0) digitalWrite(_cs, LOW);
  _transfer16(0x0000); // preamble for write data
  _waitWhileBusy2("clearScreen preamble", default_wait_time);
  for (uint32_t i = 0; i < uint32_t(WIDTH) * uint32_t(HEIGHT); i++)
  {
    SPI.transfer(value);
#if defined(ESP8266) || defined(ESP32)
    if (0 == i % 10000) yield();
#endif
  }
  if (_cs >= 0) digitalWrite(_cs, HIGH);
  SPI.endTransaction();
  _writeCommand16(IT8951_TCON_LD_IMG_END);
  _waitWhileBusy2("clearScreen load end", default_wait_time);
  _refresh(0, 0, WIDTH, HEIGHT, false);
}

drawImage() [1/2]

void GxEPD2_it78_1872x1404::drawImage	(	const uint8_t *	black,
		const uint8_t *	color,
		int16_t	x,
		int16_t	y,
		int16_t	w,
		int16_t	h,
		bool	invert = false,
		bool	mirror_y = false,
		bool	pgm = false )

Definition at line 360 of file GxEPD2_it78_1872x1404.cpp.

{
  writeImage(black, color, x, y, w, h, invert, mirror_y, pgm);
  _refresh(x, y, w, h, true);
}

drawImage() [2/2]

void GxEPD2_it78_1872x1404::drawImage	(	const uint8_t	bitmap[],
		int16_t	x,
		int16_t	y,
		int16_t	w,
		int16_t	h,
		bool	invert = false,
		bool	mirror_y = false,
		bool	pgm = false )

Definition at line 347 of file GxEPD2_it78_1872x1404.cpp.

{
  writeImage(bitmap, x, y, w, h, invert, mirror_y, pgm);
  _refresh(x, y, w, h, true);
}

drawImagePart() [1/2]

void GxEPD2_it78_1872x1404::drawImagePart	(	const uint8_t *	black,
		const uint8_t *	color,
		int16_t	x_part,
		int16_t	y_part,
		int16_t	w_bitmap,
		int16_t	h_bitmap,
		int16_t	x,
		int16_t	y,
		int16_t	w,
		int16_t	h,
		bool	invert = false,
		bool	mirror_y = false,
		bool	pgm = false )

Definition at line 366 of file GxEPD2_it78_1872x1404.cpp.

{
  writeImagePart(black, color, x_part, y_part, w_bitmap, h_bitmap, x, y, w, h, invert, mirror_y, pgm);
  _refresh(x, y, w, h, true);
}

drawImagePart() [2/2]

void GxEPD2_it78_1872x1404::drawImagePart	(	const uint8_t	bitmap[],
		int16_t	x_part,
		int16_t	y_part,
		int16_t	w_bitmap,
		int16_t	h_bitmap,
		int16_t	x,
		int16_t	y,
		int16_t	w,
		int16_t	h,
		bool	invert = false,
		bool	mirror_y = false,
		bool	pgm = false )

Definition at line 353 of file GxEPD2_it78_1872x1404.cpp.

{
  writeImagePart(bitmap, x_part, y_part, w_bitmap, h_bitmap, x, y, w, h, invert, mirror_y, pgm);
  _refresh(x, y, w, h, true);
}

drawNative()

void GxEPD2_it78_1872x1404::drawNative	(	const uint8_t *	data1,
		const uint8_t *	data2,
		int16_t	x,
		int16_t	y,
		int16_t	w,
		int16_t	h,
		bool	invert = false,
		bool	mirror_y = false,
		bool	pgm = false )

Definition at line 373 of file GxEPD2_it78_1872x1404.cpp.

{
  writeNative(data1, data2, x, y, w, h, invert, mirror_y, pgm);
  _refresh(x, y, w, h, false);
}

hibernate()

void GxEPD2_it78_1872x1404::hibernate ( )

virtual

Implements GxEPD2_EPD.

Definition at line 420 of file GxEPD2_it78_1872x1404.cpp.

{
  if (_power_is_on) _PowerOff();
  if (_rst >= 0)
  {
    // this does not work, does not reduce power, uses more than in stand by mode
    //delay(1000);
    //_IT8951Sleep();
    //delay(1000);
    //_hibernating = true;
  }
}

init() [1/2]

void GxEPD2_it78_1872x1404::init ( uint32_t serial_diag_bitrate, bool initial, uint16_t reset_duration = 20, bool pulldown_rst_mode = false )

virtual

Reimplemented from GxEPD2_EPD.

Definition at line 70 of file GxEPD2_it78_1872x1404.cpp.

{
  GxEPD2_EPD::init(serial_diag_bitrate, initial, reset_duration, pulldown_rst_mode);
 
  // we need a long reset pulse
  if (_rst >= 0)
  {
    digitalWrite(_rst, LOW);
    delay(200);
    digitalWrite(_rst, HIGH);
    delay(200);
    _waitWhileBusy("init reset_to_ready", reset_to_ready_time);
  }
 
  _writeCommand16(USDEF_I80_CMD_GET_DEV_INFO);
  _waitWhileBusy("GetIT8951SystemInfo", power_on_time);
  _readData16((uint16_t*)&IT8951DevInfo, sizeof(IT8951DevInfo) / 2);
  if (_diag_enabled)
  {
    //Show Device information of IT8951
    printf("Panel(W,H) = (%d,%d)\r\n",
           IT8951DevInfo.usPanelW, IT8951DevInfo.usPanelH );
    printf("Image Buffer Address = %lX\r\n",
           uint32_t(IT8951DevInfo.usImgBufAddrL) | (uint32_t(IT8951DevInfo.usImgBufAddrH) << 16));
    //Show Firmware and LUT Version
    printf("FW Version = %s\r\n", (uint8_t*)IT8951DevInfo.usFWVersion);
    printf("LUT Version = %s\r\n", (uint8_t*)IT8951DevInfo.usLUTVersion);
  }
  //Set to Enable I80 Packed mode
  _IT8951WriteReg(I80CPCR, 0x0001);
  if (VCOM != _IT8951GetVCOM())
  {
    _IT8951SetVCOM(VCOM);
    printf("VCOM = -%.02fV\n", (double)_IT8951GetVCOM() / 1000);
  }
  printf("VCOM = -%.02fV\n", (double)_IT8951GetVCOM() / 1000);
}

init() [2/2]

void GxEPD2_it78_1872x1404::init ( uint32_t serial_diag_bitrate = 0 )

virtual

Reimplemented from GxEPD2_EPD.

Definition at line 65 of file GxEPD2_it78_1872x1404.cpp.

{
  init(serial_diag_bitrate, true, 20, false);
}

powerOff()

void GxEPD2_it78_1872x1404::powerOff ( void )

virtual

Implements GxEPD2_EPD.

Definition at line 415 of file GxEPD2_it78_1872x1404.cpp.

{
  _PowerOff();
}

refresh() [1/2]

void GxEPD2_it78_1872x1404::refresh ( bool partial_update_mode = false )

virtual

Implements GxEPD2_EPD.

Definition at line 379 of file GxEPD2_it78_1872x1404.cpp.

{
  _refresh(0, 0, WIDTH, HEIGHT, partial_update_mode);
}

refresh() [2/2]

void GxEPD2_it78_1872x1404::refresh ( int16_t x, int16_t y, int16_t w, int16_t h )

virtual

Implements GxEPD2_EPD.

Definition at line 384 of file GxEPD2_it78_1872x1404.cpp.

{
  _refresh(x, y, w, h, true);
}

writeImage() [1/2]

void GxEPD2_it78_1872x1404::writeImage	(	const uint8_t *	black,
		const uint8_t *	color,
		int16_t	x,
		int16_t	y,
		int16_t	w,
		int16_t	h,
		bool	invert = false,
		bool	mirror_y = false,
		bool	pgm = false )

Definition at line 275 of file GxEPD2_it78_1872x1404.cpp.

{
  if (black)
  {
    writeImage(black, x, y, w, h, invert, mirror_y, pgm);
  }
}

writeImage() [2/2]

void GxEPD2_it78_1872x1404::writeImage ( const uint8_t bitmap[], int16_t x, int16_t y, int16_t w, int16_t h, bool invert = false, bool mirror_y = false, bool pgm = false )

virtual

Implements GxEPD2_EPD.

Definition at line 161 of file GxEPD2_it78_1872x1404.cpp.

{
  if (_initial_write) writeScreenBuffer(); // initial full screen buffer clean
  delay(1); // yield() to avoid WDT on ESP8266 and ESP32
  int16_t wb = (w + 7) / 8; // width bytes, bitmaps are padded
  x -= x % 8; // byte boundary
  w = wb * 8; // byte boundary
  int16_t x1 = x < 0 ? 0 : x; // limit
  int16_t y1 = y < 0 ? 0 : y; // limit
  int16_t w1 = x + w < int16_t(WIDTH) ? w : int16_t(WIDTH) - x; // limit
  int16_t h1 = y + h < int16_t(HEIGHT) ? h : int16_t(HEIGHT) - y; // limit
  int16_t dx = x1 - x;
  int16_t dy = y1 - y;
  w1 -= dx;
  h1 -= dy;
  if ((w1 <= 0) || (h1 <= 0)) return;
  if (!_using_partial_mode) _Init_Part();
  _setPartialRamArea(x1, y1, w1, h1);
  SPI.beginTransaction(_spi_settings);
  if (_cs >= 0) digitalWrite(_cs, LOW);
  _transfer16(0x0000); // preamble for write data
  _waitWhileBusy2("writeImage preamble", default_wait_time);
  for (int16_t i = 0; i < h1; i++)
  {
    for (int16_t j = 0; j < w1 / 8; j++)
    {
      uint8_t data;
      // use wb, h of bitmap for index!
      uint32_t idx = mirror_y ? uint32_t(j + dx / 8) + uint32_t((h - 1 - (i + dy))) * uint32_t(wb) : uint32_t(j + dx / 8) + uint32_t(i + dy) * uint32_t(wb);
      if (pgm)
      {
#if defined(__AVR) || defined(ESP8266) || defined(ESP32)
        data = pgm_read_byte(&bitmap[idx]);
#else
        data = bitmap[idx];
#endif
      }
      else
      {
        data = bitmap[idx];
      }
      if (invert) data = ~data;
      _send8pixel(~data);
    }
#if defined(ESP8266) || defined(ESP32)
    yield();
#endif
  }
  if (_cs >= 0) digitalWrite(_cs, HIGH);
  SPI.endTransaction();
  _writeCommand16(IT8951_TCON_LD_IMG_END);
  _waitWhileBusy2("writeImage load end", default_wait_time);
  delay(1); // yield() to avoid WDT on ESP8266 and ESP32
}

writeImagePart() [1/2]

void GxEPD2_it78_1872x1404::writeImagePart	(	const uint8_t *	black,
		const uint8_t *	color,
		int16_t	x_part,
		int16_t	y_part,
		int16_t	w_bitmap,
		int16_t	h_bitmap,
		int16_t	x,
		int16_t	y,
		int16_t	w,
		int16_t	h,
		bool	invert = false,
		bool	mirror_y = false,
		bool	pgm = false )

Definition at line 283 of file GxEPD2_it78_1872x1404.cpp.

{
  if (black)
  {
    writeImagePart(black, x_part, y_part, w_bitmap, h_bitmap, x, y, w, h, invert, mirror_y, pgm);
  }
}

writeImagePart() [2/2]

void GxEPD2_it78_1872x1404::writeImagePart ( const uint8_t bitmap[], int16_t x_part, int16_t y_part, int16_t w_bitmap, int16_t h_bitmap, int16_t x, int16_t y, int16_t w, int16_t h, bool invert = false, bool mirror_y = false, bool pgm = false )

virtual

Implements GxEPD2_EPD.

Definition at line 216 of file GxEPD2_it78_1872x1404.cpp.

{
  if (_initial_write) writeScreenBuffer(); // initial full screen buffer clean
  delay(1); // yield() to avoid WDT on ESP8266 and ESP32
  if ((w_bitmap < 0) || (h_bitmap < 0) || (w < 0) || (h < 0)) return;
  if ((x_part < 0) || (x_part >= w_bitmap)) return;
  if ((y_part < 0) || (y_part >= h_bitmap)) return;
  int16_t wb_bitmap = (w_bitmap + 7) / 8; // width bytes, bitmaps are padded
  x_part -= x_part % 8; // byte boundary
  w = w_bitmap - x_part < w ? w_bitmap - x_part : w; // limit
  h = h_bitmap - y_part < h ? h_bitmap - y_part : h; // limit
  x -= x % 8; // byte boundary
  w = 8 * ((w + 7) / 8); // byte boundary, bitmaps are padded
  int16_t x1 = x < 0 ? 0 : x; // limit
  int16_t y1 = y < 0 ? 0 : y; // limit
  int16_t w1 = x + w < int16_t(WIDTH) ? w : int16_t(WIDTH) - x; // limit
  int16_t h1 = y + h < int16_t(HEIGHT) ? h : int16_t(HEIGHT) - y; // limit
  int16_t dx = x1 - x;
  int16_t dy = y1 - y;
  w1 -= dx;
  h1 -= dy;
  if ((w1 <= 0) || (h1 <= 0)) return;
  if (!_using_partial_mode) _Init_Part();
  _setPartialRamArea(x1, y1, w1, h1);
  SPI.beginTransaction(_spi_settings);
  if (_cs >= 0) digitalWrite(_cs, LOW);
  _transfer16(0x0000); // preamble for write data
  _waitWhileBusy2("writeImage preamble", default_wait_time);
  for (int16_t i = 0; i < h1; i++)
  {
    for (int16_t j = 0; j < w1 / 8; j++)
    {
      uint8_t data;
      // use wb_bitmap, h_bitmap of bitmap for index!
      uint32_t idx = mirror_y ? x_part / 8 + (j + dx / 8) + uint32_t((h_bitmap - 1 - (y_part + i + dy))) * uint32_t(wb_bitmap) : x_part / 8 + j + dx / 8 + uint32_t(y_part + i + dy) * uint32_t(wb_bitmap);
      if (pgm)
      {
#if defined(__AVR) || defined(ESP8266) || defined(ESP32)
        data = pgm_read_byte(&bitmap[idx]);
#else
        data = bitmap[idx];
#endif
      }
      else
      {
        data = bitmap[idx];
      }
      if (invert) data = ~data;
      _send8pixel(~data);
    }
  }
  if (_cs >= 0) digitalWrite(_cs, HIGH);
  SPI.endTransaction();
  _writeCommand16(IT8951_TCON_LD_IMG_END);
  _waitWhileBusy2("writeImage load end", default_wait_time);
  delay(1); // yield() to avoid WDT on ESP8266 and ESP32
}

writeNative()

void GxEPD2_it78_1872x1404::writeNative	(	const uint8_t *	data1,
		const uint8_t *	data2,
		int16_t	x,
		int16_t	y,
		int16_t	w,
		int16_t	h,
		bool	invert = false,
		bool	mirror_y = false,
		bool	pgm = false )

Definition at line 292 of file GxEPD2_it78_1872x1404.cpp.

{
  if (data1)
  {
    if (_initial_write) writeScreenBuffer(); // initial full screen buffer clean
    delay(1); // yield() to avoid WDT on ESP8266 and ESP32
    int16_t x1 = x < 0 ? 0 : x; // limit
    int16_t y1 = y < 0 ? 0 : y; // limit
    int16_t w1 = x + w < int16_t(WIDTH) ? w : int16_t(WIDTH) - x; // limit
    int16_t h1 = y + h < int16_t(HEIGHT) ? h : int16_t(HEIGHT) - y; // limit
    int16_t dx = x1 - x;
    int16_t dy = y1 - y;
    w1 -= dx;
    h1 -= dy;
    if ((w1 <= 0) || (h1 <= 0)) return;
    if (!_using_partial_mode) _Init_Part();
    _setPartialRamArea(x1, y1, w1, h1);
    SPI.beginTransaction(_spi_settings);
    if (_cs >= 0) digitalWrite(_cs, LOW);
    _transfer16(0x0000); // preamble for write data
    _waitWhileBusy2("writeNative preamble", default_wait_time);
    for (int16_t i = 0; i < h1; i++)
    {
      for (int16_t j = 0; j < w1; j++)
      {
        uint8_t data;
        // use w, h of bitmap for index!
        uint32_t idx = mirror_y ? uint32_t(j + dx) + uint32_t((h - 1 - (i + dy))) * uint32_t(w) : uint32_t(j + dx) + uint32_t(i + dy) * uint32_t(w);
        if (pgm)
        {
#if defined(__AVR) || defined(ESP8266) || defined(ESP32)
          data = pgm_read_byte(&data1[idx]);
#else
          data = data1[idx];
#endif
        }
        else
        {
          data = data1[idx];
        }
        if (invert) data = ~data;
        SPI.transfer(data);
      }
#if defined(ESP8266) || defined(ESP32)
      yield();
#endif
    }
    if (_cs >= 0) digitalWrite(_cs, HIGH);
    SPI.endTransaction();
    _writeCommand16(IT8951_TCON_LD_IMG_END);
    _waitWhileBusy2("writeNative load end", default_wait_time);
    delay(1); // yield() to avoid WDT on ESP8266 and ESP32
  }
}

writeScreenBuffer()

void GxEPD2_it78_1872x1404::writeScreenBuffer ( uint8_t value = 0x33 )

virtual

Implements GxEPD2_EPD.

Definition at line 133 of file GxEPD2_it78_1872x1404.cpp.

{
  if (_initial_refresh) clearScreen(value);
  else _writeScreenBuffer(value);
}

Member Data Documentation

default_wait_time

const uint16_t GxEPD2_it78_1872x1404::default_wait_time = 1

static

Definition at line 39 of file GxEPD2_it78_1872x1404.h.

diag_min_time

const uint16_t GxEPD2_it78_1872x1404::diag_min_time = 3

static

Definition at line 40 of file GxEPD2_it78_1872x1404.h.

full_refresh_time

const uint16_t GxEPD2_it78_1872x1404::full_refresh_time = 650

static

Definition at line 35 of file GxEPD2_it78_1872x1404.h.

hasColor

const bool GxEPD2_it78_1872x1404::hasColor = false

static

Definition at line 29 of file GxEPD2_it78_1872x1404.h.

hasFastPartialUpdate

const bool GxEPD2_it78_1872x1404::hasFastPartialUpdate = true

static

Definition at line 31 of file GxEPD2_it78_1872x1404.h.

hasPartialUpdate

const bool GxEPD2_it78_1872x1404::hasPartialUpdate = true

static

Definition at line 30 of file GxEPD2_it78_1872x1404.h.

HEIGHT

const uint16_t GxEPD2_it78_1872x1404::HEIGHT = 1404

static

Definition at line 27 of file GxEPD2_it78_1872x1404.h.

panel

const GxEPD2::Panel GxEPD2_it78_1872x1404::panel = GxEPD2::ED078KC2

static

Definition at line 28 of file GxEPD2_it78_1872x1404.h.

partial_refresh_time

const uint16_t GxEPD2_it78_1872x1404::partial_refresh_time = 300

static

Definition at line 36 of file GxEPD2_it78_1872x1404.h.

power_off_time

const uint16_t GxEPD2_it78_1872x1404::power_off_time = 250

static

Definition at line 34 of file GxEPD2_it78_1872x1404.h.

power_on_time

const uint16_t GxEPD2_it78_1872x1404::power_on_time = 10

static

Definition at line 33 of file GxEPD2_it78_1872x1404.h.

refresh_cmd_time

const uint16_t GxEPD2_it78_1872x1404::refresh_cmd_time = 10

static

Definition at line 37 of file GxEPD2_it78_1872x1404.h.

refresh_par_time

const uint16_t GxEPD2_it78_1872x1404::refresh_par_time = 2

static

Definition at line 38 of file GxEPD2_it78_1872x1404.h.

reset_to_ready_time

const uint16_t GxEPD2_it78_1872x1404::reset_to_ready_time = 1800

static

Definition at line 32 of file GxEPD2_it78_1872x1404.h.

set_vcom_time

const uint16_t GxEPD2_it78_1872x1404::set_vcom_time = 500

static

Definition at line 41 of file GxEPD2_it78_1872x1404.h.

WIDTH

const uint16_t GxEPD2_it78_1872x1404::WIDTH = 1872

static

Definition at line 26 of file GxEPD2_it78_1872x1404.h.

---

The documentation for this class was generated from the following files:

• src/drivers/it8951/GxEPD2_it78_1872x1404.h
• src/drivers/it8951/GxEPD2_it78_1872x1404.cpp