/* Based on Arduino SSD1306Ascii Library, Copyright (C) 2015 by William Greiman * Modifications (C) 2021 Neil McKechnie * * This Library is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This Library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with the Arduino SSD1306Ascii Library. If not, see * . */ /** * @file SSD1306init.h * @brief Display controller initialization commands. */ #ifndef SSD1306init_h #define SSD1306init_h //------------------------------------------------------------------------------ #ifndef __AVR__ /** Handle AVR flash addressing. */ #define MEM_TYPE #else // __AVR__ #define MEM_TYPE __attribute__ ((progmem)) #endif // __AVR__ //------------------------------------------------------------------------------ /** Set Lower Column Start Address for Page Addressing Mode. */ #define SSD1306_SETLOWCOLUMN 0x00 /** Set Higher Column Start Address for Page Addressing Mode. */ #define SSD1306_SETHIGHCOLUMN 0x10 /** Set Memory Addressing Mode. */ #define SSD1306_MEMORYMODE 0x20 /** Set display RAM display start line register from 0 - 63. */ #define SSD1306_SETSTARTLINE 0x40 /** Set Display Contrast to one of 256 steps. */ #define SSD1306_SETCONTRAST 0x81 /** Enable or disable charge pump. Follow with 0X14 enable, 0X10 disable. */ #define SSD1306_CHARGEPUMP 0x8D /** Set Segment Re-map between data column and the segment driver. */ #define SSD1306_SEGREMAP 0xA0 /** Resume display from GRAM content. */ #define SSD1306_DISPLAYALLON_RESUME 0xA4 /** Force display on regardless of GRAM content. */ #define SSD1306_DISPLAYALLON 0xA5 /** Set Normal Display. */ #define SSD1306_NORMALDISPLAY 0xA6 /** Set Inverse Display. */ #define SSD1306_INVERTDISPLAY 0xA7 /** Set Multiplex Ratio from 16 to 63. */ #define SSD1306_SETMULTIPLEX 0xA8 /** Set Display off. */ #define SSD1306_DISPLAYOFF 0xAE /** Set Display on. */ #define SSD1306_DISPLAYON 0xAF /**Set GDDRAM Page Start Address. */ #define SSD1306_SETSTARTPAGE 0XB0 /** Set COM output scan direction normal. */ #define SSD1306_COMSCANINC 0xC0 /** Set COM output scan direction reversed. */ #define SSD1306_COMSCANDEC 0xC8 /** Set Display Offset. */ #define SSD1306_SETDISPLAYOFFSET 0xD3 /** Sets COM signals pin configuration to match the OLED panel layout. */ #define SSD1306_SETCOMPINS 0xDA /** This command adjusts the VCOMH regulator output. */ #define SSD1306_SETVCOMDETECT 0xDB /** Set Display Clock Divide Ratio/ Oscillator Frequency. */ #define SSD1306_SETDISPLAYCLOCKDIV 0xD5 /** Set Pre-charge Period */ #define SSD1306_SETPRECHARGE 0xD9 /** Deactivate scroll */ #define SSD1306_DEACTIVATE_SCROLL 0x2E /** No Operation Command. */ #define SSD1306_NOP 0XE3 //------------------------------------------------------------------------------ /** Set Pump voltage value: (30H~33H) 6.4, 7.4, 8.0 (POR), 9.0. */ #define SH1106_SET_PUMP_VOLTAGE 0X30 /** First byte of set charge pump mode */ #define SH1106_SET_PUMP_MODE 0XAD /** Second byte charge pump on. */ #define SH1106_PUMP_ON 0X8B /** Second byte charge pump off. */ #define SH1106_PUMP_OFF 0X8A //------------------------------------------------------------------------------ /** * @struct DevType * @brief Device initialization structure. */ struct DevType { /** * Pointer to initialization command bytes. */ const uint8_t* initcmds; /** * Number of initialization bytes. */ const uint8_t initSize; /** * Width of the diaplay in pixels. */ const uint8_t lcdWidth; /** * Height of the display in pixels. */ const uint8_t lcdHeight; /** * Column offset RAM to display. Used to pick start column of SH1106. */ const uint8_t colOffset; }; //------------------------------------------------------------------------------ // this section is based on https://github.com/adafruit/Adafruit_SSD1306 /** Initialization commands for a 128x32 SSD1306 oled display. */ static const uint8_t MEM_TYPE Adafruit128x32init[] = { // Init sequence for Adafruit 128x32 OLED module 0x00, // Set to command mode SSD1306_DISPLAYOFF, SSD1306_SETDISPLAYCLOCKDIV, 0x80, // the suggested ratio 0x80 SSD1306_SETMULTIPLEX, 0x1F, // ratio 32 SSD1306_SETDISPLAYOFFSET, 0x0, // no offset SSD1306_SETSTARTLINE | 0x0, // line #0 SSD1306_CHARGEPUMP, 0x14, // internal vcc SSD1306_MEMORYMODE, 0x02, // page mode SSD1306_SEGREMAP | 0x1, // column 127 mapped to SEG0 SSD1306_COMSCANDEC, // column scan direction reversed SSD1306_SETCOMPINS, 0x02, // sequential COM pins, disable remap SSD1306_SETCONTRAST, 0x7F, // contrast level 127 SSD1306_SETPRECHARGE, 0xF1, // pre-charge period (1, 15) SSD1306_SETVCOMDETECT, 0x40, // vcomh regulator level SSD1306_DISPLAYALLON_RESUME, SSD1306_NORMALDISPLAY, SSD1306_DISPLAYON }; /** Initialize a 128x32 SSD1306 oled display. */ static const DevType MEM_TYPE Adafruit128x32 = { Adafruit128x32init, sizeof(Adafruit128x32init), 128, 32, 0 }; //------------------------------------------------------------------------------ // This section is based on https://github.com/adafruit/Adafruit_SSD1306 /** Initialization commands for a 128x64 SSD1306 oled display. */ static const uint8_t MEM_TYPE Adafruit128x64init[] = { // Init sequence for Adafruit 128x64 OLED module 0x00, // Set to command mode SSD1306_DISPLAYOFF, SSD1306_SETDISPLAYCLOCKDIV, 0x80, // the suggested ratio 0x80 SSD1306_SETMULTIPLEX, 0x3F, // ratio 64 SSD1306_SETDISPLAYOFFSET, 0x0, // no offset SSD1306_SETSTARTLINE | 0x0, // line #0 SSD1306_CHARGEPUMP, 0x14, // internal vcc SSD1306_MEMORYMODE, 0x02, // page mode SSD1306_SEGREMAP | 0x1, // column 127 mapped to SEG0 SSD1306_COMSCANDEC, // column scan direction reversed SSD1306_SETCOMPINS, 0x12, // alt COM pins, disable remap SSD1306_SETCONTRAST, 0x7F, // contrast level 127 SSD1306_SETPRECHARGE, 0xF1, // pre-charge period (1, 15) SSD1306_SETVCOMDETECT, 0x40, // vcomh regulator level SSD1306_DISPLAYALLON_RESUME, SSD1306_NORMALDISPLAY, SSD1306_DISPLAYON }; /** Initialize a 128x64 oled display. */ static const DevType MEM_TYPE Adafruit128x64 = { Adafruit128x64init, sizeof(Adafruit128x64init), 128, 64, 0 }; //------------------------------------------------------------------------------ // This section is based on https://github.com/stanleyhuangyc/MultiLCD /** Initialization commands for a 128x64 SH1106 oled display. */ static const uint8_t MEM_TYPE SH1106_128x64init[] = { 0x00, // Set to command mode SSD1306_DISPLAYOFF, SSD1306_SETSTARTPAGE | 0X0, // set page address SSD1306_SETCONTRAST, 0x80, // 128 SSD1306_SEGREMAP | 0X1, // set segment remap SSD1306_NORMALDISPLAY, // normal / reverse SSD1306_SETMULTIPLEX, 0x3F, // ratio 64 SH1106_SET_PUMP_MODE, SH1106_PUMP_ON, // set charge pump enable SH1106_SET_PUMP_VOLTAGE | 0X2, // 8.0 volts SSD1306_COMSCANDEC, // Com scan direction SSD1306_SETDISPLAYOFFSET, 0X00, // set display offset SSD1306_SETDISPLAYCLOCKDIV, 0X80, // set osc division SSD1306_SETPRECHARGE, 0X1F, // set pre-charge period SSD1306_SETCOMPINS, 0X12, // set COM pins SSD1306_SETVCOMDETECT, 0x40, // set vcomh SSD1306_DISPLAYON }; /** Initialize a 128x64 oled SH1106 display. */ static const DevType MEM_TYPE SH1106_128x64 = { SH1106_128x64init, sizeof(SH1106_128x64init), 128, 64, 2 // SH1106 is a 132x64 controller. Use middle 128 columns. }; #endif // SSD1306init_h