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get grayscale working

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This commit is contained in:
ladyada 2025-07-07 19:56:41 -04:00
parent 8277f296c0
commit 7230e706ad
2 changed files with 117 additions and 11 deletions
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2
src/drivers/Adafruit_SSD1683.h
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@ -7,7 +7,7 @@
#define SSD1683_DRIVER_CONTROL 0x01
#define SSD1683_GATE_VOLTAGE 0x03
//#define SSD1683_SOURCE_VOLTAGE 0x04
#define SSD1683_SOURCE_VOLTAGE 0x04
#define SSD1683_PROGOTP_INITIAL 0x08
#define SSD1683_PROGREG_INITIAL 0x09
#define SSD1683_READREG_INITIAL 0x0A

126
src/panels/ThinkInk_420_Mono_MFGN.h
View file

@ -4,6 +4,90 @@
// This file is #included by Adafruit_ThinkInk.h and does not need to
// #include anything else to pick up the EPD header or ink mode enum.
static const uint8_t ti_420mfgn_monofull_init_code[] {
SSD1683_SW_RESET, 0, // 0x12 - Software reset
0xFF, 50, // Wait for busy (20ms delay)
SSD1683_DISP_CTRL1, 2, // 0x21 - Display update control
0x40, // Display update control 1
0x00, // Display update control 2
SSD1683_WRITE_BORDER, 1, // 0x3C - Border waveform control
0x05, // Border color/waveform
SSD1683_DATA_MODE, 1, // 0x11 - Data entry mode
0x03, // Y decrement, X increment
SSD1683_TEMP_CONTROL, 1, 0x80, // Temp control
SSD1680_DISP_CTRL2, 1, 0x20, // Load LUT from OTP (default mono)
0xFE // End of initialization
};
static const uint8_t ti_420mfgn_gray4_init_code[] {
SSD1683_SW_RESET, 0, // 0x12 - Software reset
0xFF, 50, // Wait for busy (20ms delay)
SSD1683_DISP_CTRL1, 2, // 0x21 - Display update control
0x00, // Display update control 1
0x00, // Display update control 2
SSD1683_WRITE_BORDER, 1, // 0x3C - Border waveform control
0x03, // Border color/waveform
SSD1683_BOOST_SOFTSTART, 4,
0x8B, 0x9C, 0xA4, 0x0F,
SSD1683_DATA_MODE, 1, // 0x11 - Data entry mode
0x03, // Y decrement, X increment
SSD1683_END_OPTION, 1, 0x07, // LUT[227]
SSD1683_GATE_VOLTAGE, 1, 0x17,
SSD1683_SOURCE_VOLTAGE, 3, 0x41, 0xA8, 0x32, // LUT[229~231]
SSD1683_WRITE_VCOM, 1, 0x30, // LUT[232]
0xFE // End of initialization
};
static const uint8_t ti_420mfgn_gray4_lut_code[] = {
0x32, 227,
0x01, 0x0A, 0x1B, 0x0F, 0x03, 0x01, 0x01,
0x05, 0x0A, 0x01, 0x0A, 0x01, 0x01, 0x01,
0x05, 0x08, 0x03, 0x02, 0x04, 0x01, 0x01,
0x01, 0x04, 0x04, 0x02, 0x00, 0x01, 0x01,
0x01, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01,
0x01, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01,
0x01, 0x0A, 0x1B, 0x0F, 0x03, 0x01, 0x01,
0x05, 0x4A, 0x01, 0x8A, 0x01, 0x01, 0x01,
0x05, 0x48, 0x03, 0x82, 0x84, 0x01, 0x01,
0x01, 0x84, 0x84, 0x82, 0x00, 0x01, 0x01,
0x01, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01,
0x01, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01,
0x01, 0x0A, 0x1B, 0x8F, 0x03, 0x01, 0x01,
0x05, 0x4A, 0x01, 0x8A, 0x01, 0x01, 0x01,
0x05, 0x48, 0x83, 0x82, 0x04, 0x01, 0x01,
0x01, 0x04, 0x04, 0x02, 0x00, 0x01, 0x01,
0x01, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01,
0x01, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01,
0x01, 0x8A, 0x1B, 0x8F, 0x03, 0x01, 0x01,
0x05, 0x4A, 0x01, 0x8A, 0x01, 0x01, 0x01,
0x05, 0x48, 0x83, 0x02, 0x04, 0x01, 0x01,
0x01, 0x04, 0x04, 0x02, 0x00, 0x01, 0x01,
0x01, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01,
0x01, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01,
0x01, 0x8A, 0x9B, 0x8F, 0x03, 0x01, 0x01,
0x05, 0x4A, 0x01, 0x8A, 0x01, 0x01, 0x01,
0x05, 0x48, 0x03, 0x42, 0x04, 0x01, 0x01,
0x01, 0x04, 0x04, 0x42, 0x00, 0x01, 0x01,
0x01, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01,
0x01, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x02, 0x00, 0x00,
0xFE // EOM
};
class ThinkInk_420_Mono_MFGN : public Adafruit_SSD1683 {
public:
ThinkInk_420_Mono_MFGN(int16_t SID, int16_t SCLK, int16_t DC, int16_t RST,
@ -16,21 +100,43 @@ class ThinkInk_420_Mono_MFGN : public Adafruit_SSD1683 {
: Adafruit_SSD1683(300, 400, DC, RST, CS, SRCS, BUSY, spi){};
void begin(thinkinkmode_t mode = THINKINK_MONO) {
Adafruit_SSD1683::begin(true);
setColorBuffer(0, true); // layer 0 uninverted
setBlackBuffer(0, true); // only one buffer
inkmode = mode; // Preserve ink mode for ImageReader or others
layer_colors[EPD_WHITE] = 0b00;
layer_colors[EPD_BLACK] = 0b01;
layer_colors[EPD_RED] = 0b01;
layer_colors[EPD_GRAY] = 0b01;
layer_colors[EPD_LIGHT] = 0b00;
layer_colors[EPD_DARK] = 0b01;
if (mode == THINKINK_GRAYSCALE4) {
setColorBuffer(1, true); // layer 0 iunnverted
setBlackBuffer(0, true); // layer 1 uninverted
default_refresh_delay = 1000;
_epd_init_code = ti_420mfgn_gray4_init_code;
_epd_lut_code = ti_420mfgn_gray4_lut_code;
layer_colors[EPD_WHITE] = 0b00;
layer_colors[EPD_BLACK] = 0b11;
layer_colors[EPD_RED] = 0b01;
layer_colors[EPD_GRAY] = 0b10;
layer_colors[EPD_LIGHT] = 0b01;
layer_colors[EPD_DARK] = 0b10;
_display_update_val = 0xCF;
} else if (mode == THINKINK_MONO) {
_epd_init_code = ti_420mfgn_monofull_init_code;
setColorBuffer(0, true); // layer 0 uninverted
setBlackBuffer(0, true); // only one buffer
layer_colors[EPD_WHITE] = 0b00;
layer_colors[EPD_BLACK] = 0b01;
layer_colors[EPD_RED] = 0b01;
layer_colors[EPD_GRAY] = 0b01;
layer_colors[EPD_LIGHT] = 0b00;
layer_colors[EPD_DARK] = 0b01;
_display_update_val = 0xF7;
}
setRotation(1);
default_refresh_delay = 1000;
powerDown();
}
};