Skip to content
Permalink
Branch: master
Find file Copy path
Find file Copy path
Fetching contributors…
Cannot retrieve contributors at this time
512 lines (469 sloc) 16.1 KB
// Display Library for SPI e-paper panels from Dalian Good Display and boards from Waveshare.
// Requires HW SPI and Adafruit_GFX. Caution: these e-papers require 3.3V supply AND data lines!
//
// based on Demo Example from Good Display: http://www.e-paper-display.com/download_list/downloadcategoryid=34&isMode=false.html
// Controller: IL91874 : http://www.e-paper-display.com/download_detail/downloadsId=539.html
//
// Author: Jean-Marc Zingg
//
// Version: see library.properties
//
// Library: https://github.com/ZinggJM/GxEPD2
#include "GxEPD2_270.h"
GxEPD2_270::GxEPD2_270(int8_t cs, int8_t dc, int8_t rst, int8_t busy) :
GxEPD2_EPD(cs, dc, rst, busy, LOW, 10000000, WIDTH, HEIGHT, panel, hasColor, hasPartialUpdate, hasFastPartialUpdate)
{
}
void GxEPD2_270::clearScreen(uint8_t value)
{
writeScreenBuffer(value);
refresh(true);
writeScreenBufferAgain(value);
}
void GxEPD2_270::writeScreenBuffer(uint8_t value)
{
_initial_write = false; // initial full screen buffer clean done
if (!_using_partial_mode) _Init_Part();
_writeCommand(0x13); // set current
for (uint32_t i = 0; i < uint32_t(WIDTH) * uint32_t(HEIGHT) / 8; i++)
{
_writeData(value);
}
if (_initial_refresh) writeScreenBufferAgain(value); // init "old data"
}
void GxEPD2_270::writeScreenBufferAgain(uint8_t value)
{
if (!_using_partial_mode) _Init_Part();
_setPartialRamArea(0x14, 0, 0, WIDTH, HEIGHT);
for (uint32_t i = 0; i < uint32_t(WIDTH) * uint32_t(HEIGHT) / 8; i++)
{
_writeData(value);
}
}
void GxEPD2_270::writeImage(const uint8_t bitmap[], int16_t x, int16_t y, int16_t w, int16_t h, bool invert, bool mirror_y, bool pgm)
{
_writeImage(0x15, bitmap, x, y, w, h, invert, mirror_y, pgm);
}
void GxEPD2_270::writeImageAgain(const uint8_t bitmap[], int16_t x, int16_t y, int16_t w, int16_t h, bool invert, bool mirror_y, bool pgm)
{
_writeImage(0x14, bitmap, x, y, w, h, invert, mirror_y, pgm);
}
void GxEPD2_270::_writeImage(uint8_t command, const uint8_t bitmap[], int16_t x, int16_t y, int16_t w, int16_t h, bool invert, bool mirror_y, bool pgm)
{
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(command, x1, y1, w1, h1);
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!
int16_t idx = mirror_y ? j + dx / 8 + ((h - 1 - (i + dy))) * wb : j + dx / 8 + (i + dy) * 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;
_writeData(data);
}
}
delay(1); // yield() to avoid WDT on ESP8266 and ESP32
}
void GxEPD2_270::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, bool mirror_y, bool pgm)
{
_writeImagePart(0x15, bitmap, x_part, y_part, w_bitmap, h_bitmap, x, y, w, h, invert, mirror_y, pgm);
}
void GxEPD2_270::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, bool mirror_y, bool pgm)
{
_writeImagePart(0x14, bitmap, x_part, y_part, w_bitmap, h_bitmap, x, y, w, h, invert, mirror_y, pgm);
}
void GxEPD2_270::_writeImagePart(uint8_t command, 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, bool mirror_y, bool pgm)
{
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(command, x1, y1, w1, h1);
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!
int16_t idx = mirror_y ? x_part / 8 + j + dx / 8 + ((h_bitmap - 1 - (y_part + i + dy))) * wb_bitmap : x_part / 8 + j + dx / 8 + (y_part + i + dy) * 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;
_writeData(data);
}
}
delay(1); // yield() to avoid WDT on ESP8266 and ESP32
}
void GxEPD2_270::writeImage(const uint8_t* black, const uint8_t* color, int16_t x, int16_t y, int16_t w, int16_t h, bool invert, bool mirror_y, bool pgm)
{
if (black)
{
writeImage(black, x, y, w, h, invert, mirror_y, pgm);
}
}
void GxEPD2_270::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, bool mirror_y, bool pgm)
{
if (black)
{
writeImagePart(black, x_part, y_part, w_bitmap, h_bitmap, x, y, w, h, invert, mirror_y, pgm);
}
}
void GxEPD2_270::writeNative(const uint8_t* data1, const uint8_t* data2, int16_t x, int16_t y, int16_t w, int16_t h, bool invert, bool mirror_y, bool pgm)
{
if (data1)
{
writeImage(data1, x, y, w, h, invert, mirror_y, pgm);
}
}
void GxEPD2_270::drawImage(const uint8_t bitmap[], int16_t x, int16_t y, int16_t w, int16_t h, bool invert, bool mirror_y, bool pgm)
{
writeImage(bitmap, x, y, w, h, invert, mirror_y, pgm);
refresh(x, y, w, h);
writeImageAgain(bitmap, x, y, w, h, invert, mirror_y, pgm);
}
void GxEPD2_270::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, bool mirror_y, bool pgm)
{
writeImagePart(bitmap, x_part, y_part, w_bitmap, h_bitmap, x, y, w, h, invert, mirror_y, pgm);
refresh(x, y, w, h);
writeImagePartAgain(bitmap, x_part, y_part, w_bitmap, h_bitmap, x, y, w, h, invert, mirror_y, pgm);
}
void GxEPD2_270::drawImage(const uint8_t* black, const uint8_t* color, int16_t x, int16_t y, int16_t w, int16_t h, bool invert, bool mirror_y, bool pgm)
{
if (black)
{
drawImage(black, x, y, w, h, invert, mirror_y, pgm);
}
}
void GxEPD2_270::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, bool mirror_y, bool pgm)
{
if (black)
{
drawImagePart(black, x_part, y_part, w_bitmap, h_bitmap, x, y, w, h, invert, mirror_y, pgm);
}
}
void GxEPD2_270::drawNative(const uint8_t* data1, const uint8_t* data2, int16_t x, int16_t y, int16_t w, int16_t h, bool invert, bool mirror_y, bool pgm)
{
if (data1)
{
drawImage(data1, x, y, w, h, invert, mirror_y, pgm);
}
}
void GxEPD2_270::refresh(bool partial_update_mode)
{
if (partial_update_mode) refresh(0, 0, WIDTH, HEIGHT);
else
{
if (_using_partial_mode) _Init_Full();
_Update_Full();
_initial_refresh = false; // initial full update done
}
}
void GxEPD2_270::refresh(int16_t x, int16_t y, int16_t w, int16_t h)
{
if (_initial_refresh) return refresh(false); // initial update needs be full update
x -= x % 8; // byte boundary
w -= x % 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
w1 -= x1 - x;
h1 -= y1 - y;
_refreshWindow(x1, y1, w1, h1);
_waitWhileBusy("refresh", partial_refresh_time);
}
void GxEPD2_270::powerOff(void)
{
_PowerOff();
}
void GxEPD2_270::hibernate()
{
_PowerOff();
if (_rst >= 0)
{
_writeCommand(0x07); // deep sleep
_writeData(0xA5); // check code
_hibernating = true;
}
}
void GxEPD2_270::_setPartialRamArea(uint8_t command, uint16_t x, uint16_t y, uint16_t w, uint16_t h)
{
w = (w + 7 + (x % 8)) & 0xfff8; // byte boundary exclusive (round up)
_writeCommand(command);
_writeData(x >> 8);
_writeData(x & 0xf8);
_writeData(y >> 8);
_writeData(y & 0xff);
_writeData(w >> 8);
_writeData(w & 0xf8);
_writeData(h >> 8);
_writeData(h & 0xff);
}
void GxEPD2_270::_refreshWindow(uint16_t x, uint16_t y, uint16_t w, uint16_t h)
{
w = (w + 7 + (x % 8)) & 0xfff8; // byte boundary exclusive (round up)
h = gx_uint16_min(h, 256); // strange controller error
_writeCommand(0x16);
_writeData(x >> 8);
_writeData(x & 0xf8);
_writeData(y >> 8);
_writeData(y & 0xff);
_writeData(w >> 8);
_writeData(w & 0xf8);
_writeData(h >> 8);
_writeData(h & 0xff);
}
void GxEPD2_270::_PowerOn()
{
if (!_power_is_on)
{
_writeCommand(0x04);
_waitWhileBusy("_PowerOn", power_on_time);
}
_power_is_on = true;
}
void GxEPD2_270::_PowerOff()
{
_writeCommand(0x02); // power off
_waitWhileBusy("_PowerOff", power_off_time);
_power_is_on = false;
_using_partial_mode = false;
}
void GxEPD2_270::_InitDisplay()
{
if (_hibernating) _reset();
_writeCommand(0x01); //POWER SETTING
_writeData (0x03);
_writeData (0x00);
_writeData (0x2b);
_writeData (0x2b);
_writeCommand(0x06); //boost
_writeData (0x07); //A
_writeData (0x07); //B
_writeData (0x17); //C
_writeCommand(0x16);
_writeData(0x00);
//_writeCommand(0x04);
//_waitWhileBusy("_wakeUp Power On");
_writeCommand(0x00); //panel setting
_writeData(0xbf); //KW-BF KWR-AF BWROTP 0f
_writeCommand(0x30); //PLL setting
_writeData (0x3a); //90 50HZ 3A 100HZ 29 150Hz 39 200HZ 31 171HZ
_writeCommand(0x61); //resolution setting
_writeData (0x00);
_writeData (0xb0); //176
_writeData (0x01);
_writeData (0x08); //264
_writeCommand(0x82); //vcom_DC setting
_writeData (0x08); //0x28:-2.0V,0x12:-0.9V
}
//full screen update LUT
const uint8_t GxEPD2_270::lut_20_vcomDC[] PROGMEM =
{
0x00, 0x00,
0x00, 0x08, 0x00, 0x00, 0x00, 0x02,
0x60, 0x28, 0x28, 0x00, 0x00, 0x01,
0x00, 0x14, 0x00, 0x00, 0x00, 0x01,
0x00, 0x12, 0x12, 0x00, 0x00, 0x01,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
const uint8_t GxEPD2_270::lut_21_ww[] PROGMEM =
{
0x40, 0x08, 0x00, 0x00, 0x00, 0x02,
0x90, 0x28, 0x28, 0x00, 0x00, 0x01,
0x40, 0x14, 0x00, 0x00, 0x00, 0x01,
0xA0, 0x12, 0x12, 0x00, 0x00, 0x01,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
const uint8_t GxEPD2_270::lut_22_bw[] PROGMEM =
{
0x40, 0x08, 0x00, 0x00, 0x00, 0x02,
0x90, 0x28, 0x28, 0x00, 0x00, 0x01,
0x40, 0x14, 0x00, 0x00, 0x00, 0x01,
0xA0, 0x12, 0x12, 0x00, 0x00, 0x01,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
const uint8_t GxEPD2_270::lut_23_wb[] PROGMEM =
{
0x80, 0x08, 0x00, 0x00, 0x00, 0x02,
0x90, 0x28, 0x28, 0x00, 0x00, 0x01,
0x80, 0x14, 0x00, 0x00, 0x00, 0x01,
0x50, 0x12, 0x12, 0x00, 0x00, 0x01,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
const uint8_t GxEPD2_270::lut_24_bb[] PROGMEM =
{
0x80, 0x08, 0x00, 0x00, 0x00, 0x02,
0x90, 0x28, 0x28, 0x00, 0x00, 0x01,
0x80, 0x14, 0x00, 0x00, 0x00, 0x01,
0x50, 0x12, 0x12, 0x00, 0x00, 0x01,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
//partial screen update LUT
const uint8_t GxEPD2_270::lut_20_vcomDC_partial[] PROGMEM =
{
0x00, 0x00,
0x00, 0x19, 0x01, 0x00, 0x00, 0x01,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
const uint8_t GxEPD2_270::lut_21_ww_partial[] PROGMEM =
{
0x00, 0x19, 0x01, 0x00, 0x00, 0x01,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
const uint8_t GxEPD2_270::lut_22_bw_partial[] PROGMEM =
{
0x80, 0x19, 0x01, 0x00, 0x00, 0x01,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
const uint8_t GxEPD2_270::lut_23_wb_partial[] PROGMEM =
{
0x40, 0x19, 0x01, 0x00, 0x00, 0x01,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
const uint8_t GxEPD2_270::lut_24_bb_partial[] PROGMEM =
{
0x00, 0x19, 0x01, 0x00, 0x00, 0x01,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
void GxEPD2_270::_Init_Full()
{
_InitDisplay();
_writeCommand(0x50); //VCOM AND DATA INTERVAL SETTING
_writeData(0x97); //WBmode:VBDF 17|D7 VBDW 97 VBDB 57 WBRmode:VBDF F7 VBDW 77 VBDB 37 VBDR B7
_writeCommand(0x20);
_writeDataPGM_sCS(lut_20_vcomDC, sizeof(lut_20_vcomDC));
_writeCommand(0x21);
_writeDataPGM_sCS(lut_21_ww, sizeof(lut_21_ww));
_writeCommand(0x22);
_writeDataPGM_sCS(lut_22_bw, sizeof(lut_22_bw));
_writeCommand(0x23);
_writeDataPGM_sCS(lut_23_wb, sizeof(lut_23_wb));
_writeCommand(0x24);
_writeDataPGM_sCS(lut_24_bb, sizeof(lut_24_bb));
_PowerOn();
_using_partial_mode = false;
}
void GxEPD2_270::_Init_Part()
{
_InitDisplay();
_writeCommand(0x50); //VCOM AND DATA INTERVAL SETTING
_writeData(0x17); //WBmode:VBDF 17|D7 VBDW 97 VBDB 57 WBRmode:VBDF F7 VBDW 77 VBDB 37 VBDR B7
_writeCommand(0x20);
_writeDataPGM_sCS(lut_20_vcomDC_partial, sizeof(lut_20_vcomDC_partial));
_writeCommand(0x21);
_writeDataPGM_sCS(lut_21_ww_partial, sizeof(lut_21_ww_partial));
_writeCommand(0x22);
_writeDataPGM_sCS(lut_22_bw_partial, sizeof(lut_22_bw_partial));
_writeCommand(0x23);
_writeDataPGM_sCS(lut_23_wb_partial, sizeof(lut_23_wb_partial));
_writeCommand(0x24);
_writeDataPGM_sCS(lut_24_bb_partial, sizeof(lut_24_bb_partial));
_PowerOn();
_using_partial_mode = true;
}
void GxEPD2_270::_Update_Full()
{
_writeCommand(0x12); //display refresh
_waitWhileBusy("_Update_Full", full_refresh_time);
}
void GxEPD2_270::_Update_Part()
{
_writeCommand(0x12); //display refresh
_waitWhileBusy("_Update_Part", partial_refresh_time);
}
You can’t perform that action at this time.