Diff: Adafruit_SSD1306.h

Revision:

0:c3dcd4c4983a

Child:

3:969ca9fe5e2b

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Adafruit_SSD1306.h	Mon Jul 16 02:19:36 2012 +0000
@@ -0,0 +1,119 @@
+/*********************************************************************
+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, const char *name = NULL) : DigitalOut(pin,name) { 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
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