István Cserny
Forked from Neal Horman: Adafruit_GFX, 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. Now it is adopted also for the SH1106 I2C 128x64 display as well...
Dependents: Lab06_oled_i2c Lab06_BME280_oled Lab06_oled_clock I2C_SSD1306andSH1106_nucleo_F446RE
Diff: Adafruit_SSD1306.cpp
- Revision:
- 4:853097cfa773
- Parent:
- 0:c3dcd4c4983a
- Child:
- 5:315de3647c9f
diff -r 969ca9fe5e2b -r 853097cfa773 Adafruit_SSD1306.cpp
--- 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
}