A derived version of the BSD licensed Adafrut GFX library for the SSD1306 controller for an OLED 128x32 or 128x64 display using SPI or I2C.
Dependents: Low_Power_Long_Distance_IR_Vision_Robot Low_Power_Long_Distance_IR_Vision_Robot
Fork of Adafruit_GFX by
Adafruit_SSD1306.h
- Committer:
- nkhorman
- Date:
- 2013-01-23
- Revision:
- 3:969ca9fe5e2b
- Parent:
- 0:c3dcd4c4983a
- Child:
- 6:1be3e3b46eb7
File content as of revision 3:969ca9fe5e2b:
/********************************************************************* This is a library for our Monochrome OLEDs based on SSD1306 drivers Pick one up today in the adafruit shop! ------> http://www.adafruit.com/category/63_98 These displays use SPI to communicate, 4 or 5 pins are required to interface Adafruit invests time and resources providing this open source code, please support Adafruit and open-source hardware by purchasing products from Adafruit! Written by Limor Fried/Ladyada for Adafruit Industries. BSD license, check license.txt for more information All text above, and the splash screen must be included in any redistribution *********************************************************************/ /* * Modified by Neal Horman 7/14/2012 for use in LPC1768 */ #ifndef _ADAFRUIT_SSD1306_H_ #define _ADAFRUIT_SSD1306_H_ #include "mbed.h" #include "Adafruit_GFX.h" /*========================================================================= SSD1306 Displays ----------------------------------------------------------------------- The driver is used in multiple displays (128x64, 128x32, etc.). Select the appropriate display below to create an appropriately sized framebuffer, etc. SSD1306_128_64 128x64 pixel display SSD1306_128_32 128x32 pixel display You also need to set the LCDWIDTH and LCDHEIGHT defines to an appropriate size -----------------------------------------------------------------------*/ //#define SSD1306_128_64 #define SSD1306_128_32 /*=========================================================================*/ #if defined SSD1306_128_64 && defined SSD1306_128_32 #error "Only one SSD1306 display can be specified at once in SSD1306.h" #endif #if !defined SSD1306_128_64 && !defined SSD1306_128_32 #error "At least one SSD1306 display must be specified in SSD1306.h" #endif #if defined SSD1306_128_64 #define SSD1306_LCDWIDTH 128 #define SSD1306_LCDHEIGHT 64 #endif #if defined SSD1306_128_32 #define SSD1306_LCDWIDTH 128 #define SSD1306_LCDHEIGHT 32 #endif #define SSD1306_SETCONTRAST 0x81 #define SSD1306_DISPLAYALLON_RESUME 0xA4 #define SSD1306_DISPLAYALLON 0xA5 #define SSD1306_NORMALDISPLAY 0xA6 #define SSD1306_INVERTDISPLAY 0xA7 #define SSD1306_DISPLAYOFF 0xAE #define SSD1306_DISPLAYON 0xAF #define SSD1306_SETDISPLAYOFFSET 0xD3 #define SSD1306_SETCOMPINS 0xDA #define SSD1306_SETVCOMDETECT 0xDB #define SSD1306_SETDISPLAYCLOCKDIV 0xD5 #define SSD1306_SETPRECHARGE 0xD9 #define SSD1306_SETMULTIPLEX 0xA8 #define SSD1306_SETLOWCOLUMN 0x00 #define SSD1306_SETHIGHCOLUMN 0x10 #define SSD1306_SETSTARTLINE 0x40 #define SSD1306_MEMORYMODE 0x20 #define SSD1306_COMSCANINC 0xC0 #define SSD1306_COMSCANDEC 0xC8 #define SSD1306_SEGREMAP 0xA0 #define SSD1306_CHARGEPUMP 0x8D #define SSD1306_EXTERNALVCC 0x1 #define SSD1306_SWITCHCAPVCC 0x2 // an DigitalOut sub-class that provides a constructed default state class DigitalOut2 : public DigitalOut { public: DigitalOut2(PinName pin, bool active = false) : DigitalOut(pin) { write(active); }; DigitalOut2& operator= (int value) { write(value); return *this; }; DigitalOut2& operator= (DigitalOut2& rhs) { write(rhs.read()); return *this; }; operator int() { return read(); }; }; class Adafruit_SSD1306 : public Adafruit_GFX { public: Adafruit_SSD1306(SPI &spi, PinName DC, PinName RST, PinName CS); void begin(uint8_t switchvcc = SSD1306_SWITCHCAPVCC); void ssd1306_command(uint8_t c); void ssd1306_data(uint8_t c); void clearDisplay(void); virtual void invertDisplay(bool i); void display(); virtual void drawPixel(int16_t x, int16_t y, uint16_t color); private: DigitalOut2 rst,cs,dc; SPI &mspi; // the memory buffer for the LCD uint8_t buffer[SSD1306_LCDHEIGHT * SSD1306_LCDWIDTH / 8]; }; #endif