Greg Steiert / Adafruit_GFX

Modified library to add delay after releasing reset. This is needed because the reset signal is enabling an LDO to provide power to the display and it needs time to turn on.

Fork of Adafruit_GFX by Neal Horman

Diff: Adafruit_SSD1306.h

Revision:
6:1be3e3b46eb7
Parent:
3:969ca9fe5e2b
Child:
7:779204e24db4
--- a/Adafruit_SSD1306.h	Thu Oct 16 23:18:25 2014 -0500
+++ b/Adafruit_SSD1306.h	Sat Oct 18 11:47:17 2014 -0500
@@ -43,6 +43,9 @@
     -----------------------------------------------------------------------*/
 //#define SSD1306_128_64
 #define SSD1306_128_32
+
+#define SSD_USES_SPI
+//#define SSD_USES_I2C
 /*=========================================================================*/
 
 #if defined SSD1306_128_64 && defined SSD1306_128_32
@@ -61,6 +64,19 @@
     #define SSD1306_LCDHEIGHT 32
 #endif
 
+#if defined SSD_USES_SPI && defined SSD_USES_I2C
+    #error "Only one communication mode can be specified at once in SSD1306.h"
+#endif
+#if !defined SSD_USES_SPI && !defined SSD_USES_I2C
+    #error "At least one communication mode must be specified in SSD1306.h"
+#endif
+
+//#define WITHOUT_SPLASH
+#define I2C_ADDRESS     0x78
+
+#define SSD_Command_Mode    0x00
+#define SSD_Data_Mode       0x40
+
 #define SSD1306_SETCONTRAST 0x81
 #define SSD1306_DISPLAYALLON_RESUME 0xA4
 #define SSD1306_DISPLAYALLON 0xA5
@@ -98,7 +114,11 @@
 class Adafruit_SSD1306 : public Adafruit_GFX
 {
  public:
+#ifdef SSD_USES_SPI
     Adafruit_SSD1306(SPI &spi, PinName DC, PinName RST, PinName CS);
+#elif defined SSD_USES_I2C
+    Adafruit_SSD1306(I2C &i2c, PinName RST);
+#endif
     void begin(uint8_t switchvcc = SSD1306_SWITCHCAPVCC);
     void ssd1306_command(uint8_t c);
     void ssd1306_data(uint8_t c);
@@ -110,8 +130,15 @@
     virtual void drawPixel(int16_t x, int16_t y, uint16_t color);
     
 private:
-    DigitalOut2 rst,cs,dc;
+    
+    Serial pc;
+    DigitalOut2 rst;
+#ifdef SSD_USES_SPI
     SPI &mspi;
+    DigitalOut2 cs,dc;
+#elif defined SSD_USES_I2C
+    I2C &mi2c;
+#endif
     // the memory buffer for the LCD
     uint8_t buffer[SSD1306_LCDHEIGHT * SSD1306_LCDWIDTH / 8];
 };