Sean Houlihane
Fork of Adafruit OLED driver to debug integration with RedBear Nano SPI driver
Fork of
Adafruit_GFX
by 
Neal Horman
Diff: Adafruit_SSD1306.cpp
- Revision:
- 0:c3dcd4c4983a
- Child:
- 4:853097cfa773
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/Adafruit_SSD1306.cpp Mon Jul 16 02:19:36 2012 +0000
@@ -0,0 +1,274 @@
+/*********************************************************************
+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 below must be included in any redistribution
+*********************************************************************/
+
+/*
+ * Modified by Neal Horman 7/14/2012 for use in LPC1768
+ */
+
+#include "mbed.h"
+#include "Adafruit_SSD1306.h"
+
+uint8_t splashScreen[SSD1306_LCDHEIGHT * SSD1306_LCDWIDTH / 8] = {
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80,
+0x80, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x80, 0x80, 0xC0, 0xC0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x80, 0xC0, 0xE0, 0xF0, 0xF8, 0xFC, 0xF8, 0xE0, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x80, 0x80,
+0x80, 0x80, 0x00, 0x80, 0x80, 0x00, 0x00, 0x00, 0x00, 0x80, 0x80, 0x80, 0x80, 0x80, 0x00, 0xFF,
+0xFF, 0xFF, 0x00, 0x00, 0x00, 0x00, 0x80, 0x80, 0x80, 0x80, 0x00, 0x00, 0x80, 0x80, 0x00, 0x00,
+0x80, 0xFF, 0xFF, 0x80, 0x80, 0x00, 0x80, 0x80, 0x00, 0x80, 0x80, 0x80, 0x80, 0x00, 0x80, 0x80,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x80, 0x00, 0x00, 0x8C, 0x8E, 0x84, 0x00, 0x00, 0x80, 0xF8,
+0xF8, 0xF8, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0xF0, 0xF0, 0xF0, 0xF0, 0xF0, 0xF0, 0xF0, 0xF0, 0xF0, 0xF0, 0xF0, 0xF0, 0xE0, 0xE0, 0xC0, 0x80,
+0x00, 0xE0, 0xFC, 0xFE, 0xFF, 0xFF, 0xFF, 0x7F, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFE, 0xFF, 0xC7, 0x01, 0x01,
+0x01, 0x01, 0x83, 0xFF, 0xFF, 0x00, 0x00, 0x7C, 0xFE, 0xC7, 0x01, 0x01, 0x01, 0x01, 0x83, 0xFF,
+0xFF, 0xFF, 0x00, 0x38, 0xFE, 0xC7, 0x83, 0x01, 0x01, 0x01, 0x83, 0xC7, 0xFF, 0xFF, 0x00, 0x00,
+0x01, 0xFF, 0xFF, 0x01, 0x01, 0x00, 0xFF, 0xFF, 0x07, 0x01, 0x01, 0x01, 0x00, 0x00, 0x7F, 0xFF,
+0x80, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0x7F, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0x00, 0x00, 0x01, 0xFF,
+0xFF, 0xFF, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x03, 0x0F, 0x3F, 0x7F, 0x7F, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xE7, 0xC7, 0xC7, 0x8F,
+0x8F, 0x9F, 0xBF, 0xFF, 0xFF, 0xC3, 0xC0, 0xF0, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFC, 0xFC, 0xFC,
+0xFC, 0xFC, 0xFC, 0xFC, 0xFC, 0xF8, 0xF8, 0xF0, 0xF0, 0xE0, 0xC0, 0x00, 0x01, 0x03, 0x03, 0x03,
+0x03, 0x03, 0x01, 0x03, 0x03, 0x00, 0x00, 0x00, 0x00, 0x01, 0x03, 0x03, 0x03, 0x03, 0x01, 0x01,
+0x03, 0x01, 0x00, 0x00, 0x00, 0x01, 0x03, 0x03, 0x03, 0x03, 0x01, 0x01, 0x03, 0x03, 0x00, 0x00,
+0x00, 0x03, 0x03, 0x00, 0x00, 0x00, 0x03, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
+0x03, 0x03, 0x03, 0x03, 0x03, 0x01, 0x00, 0x00, 0x00, 0x01, 0x03, 0x01, 0x00, 0x00, 0x00, 0x03,
+0x03, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+#if (SSD1306_LCDHEIGHT == 64)
+0x00, 0x00, 0x00, 0x80, 0xC0, 0xE0, 0xF0, 0xF9, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x3F, 0x1F, 0x0F,
+0x87, 0xC7, 0xF7, 0xFF, 0xFF, 0x1F, 0x1F, 0x3D, 0xFC, 0xF8, 0xF8, 0xF8, 0xF8, 0x7C, 0x7D, 0xFF,
+0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x7F, 0x3F, 0x0F, 0x07, 0x00, 0x30, 0x30, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0xFE, 0xFE, 0xFC, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE0, 0xC0, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 0x30, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0xC0, 0xFE, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x7F, 0x7F, 0x3F, 0x1F,
+0x0F, 0x07, 0x1F, 0x7F, 0xFF, 0xFF, 0xF8, 0xF8, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFE, 0xF8, 0xE0,
+0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFE, 0xFE, 0x00, 0x00,
+0x00, 0xFC, 0xFE, 0xFC, 0x0C, 0x06, 0x06, 0x0E, 0xFC, 0xF8, 0x00, 0x00, 0xF0, 0xF8, 0x1C, 0x0E,
+0x06, 0x06, 0x06, 0x0C, 0xFF, 0xFF, 0xFF, 0x00, 0x00, 0xFE, 0xFE, 0x00, 0x00, 0x00, 0x00, 0xFC,
+0xFE, 0xFC, 0x00, 0x18, 0x3C, 0x7E, 0x66, 0xE6, 0xCE, 0x84, 0x00, 0x00, 0x06, 0xFF, 0xFF, 0x06,
+0x06, 0xFC, 0xFE, 0xFC, 0x0C, 0x06, 0x06, 0x06, 0x00, 0x00, 0xFE, 0xFE, 0x00, 0x00, 0xC0, 0xF8,
+0xFC, 0x4E, 0x46, 0x46, 0x46, 0x4E, 0x7C, 0x78, 0x40, 0x18, 0x3C, 0x76, 0xE6, 0xCE, 0xCC, 0x80,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x01, 0x07, 0x0F, 0x1F, 0x1F, 0x3F, 0x3F, 0x3F, 0x3F, 0x1F, 0x0F, 0x03,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0F, 0x0F, 0x00, 0x00,
+0x00, 0x0F, 0x0F, 0x0F, 0x00, 0x00, 0x00, 0x00, 0x0F, 0x0F, 0x00, 0x00, 0x03, 0x07, 0x0E, 0x0C,
+0x18, 0x18, 0x0C, 0x06, 0x0F, 0x0F, 0x0F, 0x00, 0x00, 0x01, 0x0F, 0x0E, 0x0C, 0x18, 0x0C, 0x0F,
+0x07, 0x01, 0x00, 0x04, 0x0E, 0x0C, 0x18, 0x0C, 0x0F, 0x07, 0x00, 0x00, 0x00, 0x0F, 0x0F, 0x00,
+0x00, 0x0F, 0x0F, 0x0F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0F, 0x0F, 0x00, 0x00, 0x00, 0x07,
+0x07, 0x0C, 0x0C, 0x18, 0x1C, 0x0C, 0x06, 0x06, 0x00, 0x04, 0x0E, 0x0C, 0x18, 0x0C, 0x0F, 0x07,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+#endif
+};
+
+Adafruit_SSD1306::Adafruit_SSD1306(SPI &spi, PinName DC, PinName RST, PinName CS)
+ : Adafruit_GFX(SSD1306_LCDWIDTH, SSD1306_LCDHEIGHT)
+ , rst(RST,false), cs(CS,true), dc(DC,false), mspi(spi)
+{
+ memcpy(buffer,splashScreen,sizeof(buffer));
+ begin();
+ display();
+};
+
+void Adafruit_SSD1306::begin(uint8_t vccstate)
+{
+ rst = 1;
+ // VDD (3.3V) goes high at start, lets just chill for a ms
+ wait_ms(1);
+ // bring reset low
+ rst = 0;
+ // wait 10ms
+ wait_ms(10);
+ // bring out of reset
+ rst = 1;
+ // turn on VCC (9V?)
+
+#if defined SSD1306_128_32
+ // Init sequence for 128x32 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(0x1F);
+ 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(0x02);
+ ssd1306_command(SSD1306_SETCONTRAST); // 0x81
+ ssd1306_command(0x8F);
+ 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
+
+#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
+}
+
+// the most basic function, set a single pixel
+void Adafruit_SSD1306::drawPixel(int16_t x, int16_t y, uint16_t color)
+{
+ if ((x < 0) || (x >= width()) || (y < 0) || (y >= height()))
+ return;
+
+ // check rotation, move pixel around if necessary
+ switch (getRotation())
+ {
+ case 1:
+ swap(x, y);
+ x = _rawWidth - x - 1;
+ break;
+ case 2:
+ x = _rawWidth - x - 1;
+ y = _rawHeight - y - 1;
+ break;
+ case 3:
+ swap(x, y);
+ y = _rawHeight - y - 1;
+ break;
+ }
+
+ // x is which column
+ if (color == WHITE)
+ buffer[x+ (y/8)*SSD1306_LCDWIDTH] |= _BV((y%8));
+ else
+ buffer[x+ (y/8)*SSD1306_LCDWIDTH] &= ~_BV((y%8));
+}
+
+void Adafruit_SSD1306::invertDisplay(bool i)
+{
+ if (i)
+ ssd1306_command(SSD1306_INVERTDISPLAY);
+ else
+ ssd1306_command(SSD1306_NORMALDISPLAY);
+}
+
+void Adafruit_SSD1306::ssd1306_command(uint8_t c)
+{
+ cs = 1;
+ dc = 0;
+ cs = 0;
+ mspi.write(c);
+ cs = 1;
+}
+
+void Adafruit_SSD1306::ssd1306_data(uint8_t c)
+{
+ cs = 1;
+ dc = 1;
+ cs = 0;
+ mspi.write(c);
+ cs = 1;
+}
+
+void Adafruit_SSD1306::display(void)
+{
+ ssd1306_command(SSD1306_SETLOWCOLUMN | 0x0); // low col = 0
+ ssd1306_command(SSD1306_SETHIGHCOLUMN | 0x0); // hi col = 0
+ ssd1306_command(SSD1306_SETSTARTLINE | 0x0); // line #0
+
+ cs = 1;
+ dc = 1;
+ cs = 0;
+
+ for (uint16_t i=0; i<(SSD1306_LCDWIDTH*SSD1306_LCDHEIGHT/8); i++)
+ mspi.write(buffer[i]);
+
+ // i wonder why we have to do this (check datasheet)
+ if (SSD1306_LCDHEIGHT == 32)
+ {
+ for (uint16_t i=0; i<(SSD1306_LCDWIDTH*SSD1306_LCDHEIGHT/8); i++)
+ mspi.write(0);
+ }
+
+ cs = 1;
+}
+
+// clear everything
+void Adafruit_SSD1306::clearDisplay(void)
+{
+ memset(buffer,0,sizeof(buffer));
+}