Diff: Adafruit_SSD1306.cpp

Revision:

4:853097cfa773

Parent:

0:c3dcd4c4983a

Child:

5:315de3647c9f

--- a/Adafruit_SSD1306.cpp	Wed Jan 23 02:43:38 2013 +0000
+++ b/Adafruit_SSD1306.cpp	Tue Apr 29 19:27:01 2014 +0000
@@ -115,12 +115,22 @@
     // turn on VCC (9V?)
     
 #if defined SSD1306_128_32
-    // Init sequence for 128x32 OLED module
+    uint8_t setmultiplex = 0x1F;
+    uint8_t setcompins = 0x02;
+    uint8_t setcontrast = 0x8F;
+#elif defined SSD1306_128_64
+    uint8_t setmultiplex = 0x3F;
+    uint8_t setcompins = 0x12;
+    uint8_t setcontrast = (vccstate == SSD1306_EXTERNALVCC) ? 0x9F : 0xCF;
+#else
+#error "Display dimensions must be defined"
+#endif
+
     ssd1306_command(SSD1306_DISPLAYOFF);                    // 0xAE
     ssd1306_command(SSD1306_SETDISPLAYCLOCKDIV);            // 0xD5
     ssd1306_command(0x80);                                  // the suggested ratio 0x80
     ssd1306_command(SSD1306_SETMULTIPLEX);                  // 0xA8
-    ssd1306_command(0x1F);
+    ssd1306_command(setmultiplex);
     ssd1306_command(SSD1306_SETDISPLAYOFFSET);              // 0xD3
     ssd1306_command(0x0);                                   // no offset
     ssd1306_command(SSD1306_SETSTARTLINE | 0x0);            // line #0
@@ -134,9 +144,9 @@
     ssd1306_command(SSD1306_SEGREMAP | 0x1);
     ssd1306_command(SSD1306_COMSCANDEC);
     ssd1306_command(SSD1306_SETCOMPINS);                    // 0xDA
-    ssd1306_command(0x02);
+    ssd1306_command(setcompins);
     ssd1306_command(SSD1306_SETCONTRAST);                   // 0x81
-    ssd1306_command(0x8F);
+    ssd1306_command(setcontrast);
     ssd1306_command(SSD1306_SETPRECHARGE);                  // 0xd9
     if (vccstate == SSD1306_EXTERNALVCC) 
     { ssd1306_command(0x22); }
@@ -146,44 +156,6 @@
     ssd1306_command(0x40);
     ssd1306_command(SSD1306_DISPLAYALLON_RESUME);           // 0xA4
     ssd1306_command(SSD1306_NORMALDISPLAY);                 // 0xA6
-#endif
-    
-#if defined SSD1306_128_64
-    // Init sequence for 128x64 OLED module
-    ssd1306_command(SSD1306_DISPLAYOFF);                    // 0xAE
-    ssd1306_command(SSD1306_SETDISPLAYCLOCKDIV);            // 0xD5
-    ssd1306_command(0x80);                                  // the suggested ratio 0x80
-    ssd1306_command(SSD1306_SETMULTIPLEX);                  // 0xA8
-    ssd1306_command(0x3F);
-    ssd1306_command(SSD1306_SETDISPLAYOFFSET);              // 0xD3
-    ssd1306_command(0x0);                                   // no offset
-    ssd1306_command(SSD1306_SETSTARTLINE | 0x0);            // line #0
-    ssd1306_command(SSD1306_CHARGEPUMP);                    // 0x8D
-    if (vccstate == SSD1306_EXTERNALVCC) 
-    { ssd1306_command(0x10); }
-    else 
-    { ssd1306_command(0x14); }
-    ssd1306_command(SSD1306_MEMORYMODE);                    // 0x20
-    ssd1306_command(0x00);                                  // 0x0 act like ks0108
-    ssd1306_command(SSD1306_SEGREMAP | 0x1);
-    ssd1306_command(SSD1306_COMSCANDEC);
-    ssd1306_command(SSD1306_SETCOMPINS);                    // 0xDA
-    ssd1306_command(0x12);
-    ssd1306_command(SSD1306_SETCONTRAST);                   // 0x81
-    if (vccstate == SSD1306_EXTERNALVCC) 
-    { ssd1306_command(0x9F); }
-    else 
-    { ssd1306_command(0xCF); }
-    ssd1306_command(SSD1306_SETPRECHARGE);                  // 0xd9
-    if (vccstate == SSD1306_EXTERNALVCC) 
-    { ssd1306_command(0x22); }
-    else 
-    { ssd1306_command(0xF1); }
-    ssd1306_command(SSD1306_SETVCOMDETECT);                 // 0xDB
-    ssd1306_command(0x40);
-    ssd1306_command(SSD1306_DISPLAYALLON_RESUME);           // 0xA4
-    ssd1306_command(SSD1306_NORMALDISPLAY);                 // 0xA6
-#endif
     
     ssd1306_command(SSD1306_DISPLAYON);//--turn on oled panel
 }