bert voldenuit / 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.

Dependents:   Display

Adafruit_SSD1306.cpp@6:1be3e3b46eb7, 2014-10-18 (annotated)

Committer:
Neal Horman
Date:
Sat Oct 18 11:47:17 2014 -0500
Revision:
6:1be3e3b46eb7
Parent:
5:315de3647c9f
Child:
9:ddb97c9850a2
hand merge Alo?s Wolff's i2c additions with a few #define tweaks

Who changed what in which revision?

UserRevisionLine numberNew contents of line
nkhorman 0:c3dcd4c4983a 1 /*********************************************************************
nkhorman 0:c3dcd4c4983a 2 This is a library for our Monochrome OLEDs based on SSD1306 drivers
nkhorman 0:c3dcd4c4983a 3
nkhorman 0:c3dcd4c4983a 4 Pick one up today in the adafruit shop!
nkhorman 0:c3dcd4c4983a 5 ------> http://www.adafruit.com/category/63_98
nkhorman 0:c3dcd4c4983a 6
nkhorman 0:c3dcd4c4983a 7 These displays use SPI to communicate, 4 or 5 pins are required to
nkhorman 0:c3dcd4c4983a 8 interface
nkhorman 0:c3dcd4c4983a 9
nkhorman 0:c3dcd4c4983a 10 Adafruit invests time and resources providing this open source code,
nkhorman 0:c3dcd4c4983a 11 please support Adafruit and open-source hardware by purchasing
nkhorman 0:c3dcd4c4983a 12 products from Adafruit!
nkhorman 0:c3dcd4c4983a 13
nkhorman 0:c3dcd4c4983a 14 Written by Limor Fried/Ladyada for Adafruit Industries.
nkhorman 0:c3dcd4c4983a 15 BSD license, check license.txt for more information
nkhorman 0:c3dcd4c4983a 16 All text above, and the splash screen below must be included in any redistribution
nkhorman 0:c3dcd4c4983a 17 *********************************************************************/
nkhorman 0:c3dcd4c4983a 18
nkhorman 0:c3dcd4c4983a 19 /*
nkhorman 0:c3dcd4c4983a 20 * Modified by Neal Horman 7/14/2012 for use in LPC1768
nkhorman 0:c3dcd4c4983a 21 */
nkhorman 0:c3dcd4c4983a 22
nkhorman 0:c3dcd4c4983a 23 #include "mbed.h"
nkhorman 0:c3dcd4c4983a 24 #include "Adafruit_SSD1306.h"
nkhorman 0:c3dcd4c4983a 25
Neal Horman 5:315de3647c9f 26 #ifndef WITHOUT_SPLASH
nkhorman 0:c3dcd4c4983a 27 uint8_t splashScreen[SSD1306_LCDHEIGHT * SSD1306_LCDWIDTH / 8] = {
nkhorman 0:c3dcd4c4983a 28 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
nkhorman 0:c3dcd4c4983a 29 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
nkhorman 0:c3dcd4c4983a 30 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
nkhorman 0:c3dcd4c4983a 31 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80,
nkhorman 0:c3dcd4c4983a 32 0x80, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
nkhorman 0:c3dcd4c4983a 33 0x00, 0x80, 0x80, 0xC0, 0xC0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
nkhorman 0:c3dcd4c4983a 34 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
nkhorman 0:c3dcd4c4983a 35 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
nkhorman 0:c3dcd4c4983a 36 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
nkhorman 0:c3dcd4c4983a 37 0x00, 0x00, 0x00, 0x00, 0x80, 0xC0, 0xE0, 0xF0, 0xF8, 0xFC, 0xF8, 0xE0, 0x00, 0x00, 0x00, 0x00,
nkhorman 0:c3dcd4c4983a 38 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x80, 0x80,
nkhorman 0:c3dcd4c4983a 39 0x80, 0x80, 0x00, 0x80, 0x80, 0x00, 0x00, 0x00, 0x00, 0x80, 0x80, 0x80, 0x80, 0x80, 0x00, 0xFF,
nkhorman 0:c3dcd4c4983a 40 0xFF, 0xFF, 0x00, 0x00, 0x00, 0x00, 0x80, 0x80, 0x80, 0x80, 0x00, 0x00, 0x80, 0x80, 0x00, 0x00,
nkhorman 0:c3dcd4c4983a 41 0x80, 0xFF, 0xFF, 0x80, 0x80, 0x00, 0x80, 0x80, 0x00, 0x80, 0x80, 0x80, 0x80, 0x00, 0x80, 0x80,
nkhorman 0:c3dcd4c4983a 42 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x80, 0x00, 0x00, 0x8C, 0x8E, 0x84, 0x00, 0x00, 0x80, 0xF8,
nkhorman 0:c3dcd4c4983a 43 0xF8, 0xF8, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
nkhorman 0:c3dcd4c4983a 44 0xF0, 0xF0, 0xF0, 0xF0, 0xF0, 0xF0, 0xF0, 0xF0, 0xF0, 0xF0, 0xF0, 0xF0, 0xE0, 0xE0, 0xC0, 0x80,
nkhorman 0:c3dcd4c4983a 45 0x00, 0xE0, 0xFC, 0xFE, 0xFF, 0xFF, 0xFF, 0x7F, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x00, 0x00,
nkhorman 0:c3dcd4c4983a 46 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFE, 0xFF, 0xC7, 0x01, 0x01,
nkhorman 0:c3dcd4c4983a 47 0x01, 0x01, 0x83, 0xFF, 0xFF, 0x00, 0x00, 0x7C, 0xFE, 0xC7, 0x01, 0x01, 0x01, 0x01, 0x83, 0xFF,
nkhorman 0:c3dcd4c4983a 48 0xFF, 0xFF, 0x00, 0x38, 0xFE, 0xC7, 0x83, 0x01, 0x01, 0x01, 0x83, 0xC7, 0xFF, 0xFF, 0x00, 0x00,
nkhorman 0:c3dcd4c4983a 49 0x01, 0xFF, 0xFF, 0x01, 0x01, 0x00, 0xFF, 0xFF, 0x07, 0x01, 0x01, 0x01, 0x00, 0x00, 0x7F, 0xFF,
nkhorman 0:c3dcd4c4983a 50 0x80, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0x7F, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0x00, 0x00, 0x01, 0xFF,
nkhorman 0:c3dcd4c4983a 51 0xFF, 0xFF, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
nkhorman 0:c3dcd4c4983a 52 0x03, 0x0F, 0x3F, 0x7F, 0x7F, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xE7, 0xC7, 0xC7, 0x8F,
nkhorman 0:c3dcd4c4983a 53 0x8F, 0x9F, 0xBF, 0xFF, 0xFF, 0xC3, 0xC0, 0xF0, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFC, 0xFC, 0xFC,
nkhorman 0:c3dcd4c4983a 54 0xFC, 0xFC, 0xFC, 0xFC, 0xFC, 0xF8, 0xF8, 0xF0, 0xF0, 0xE0, 0xC0, 0x00, 0x01, 0x03, 0x03, 0x03,
nkhorman 0:c3dcd4c4983a 55 0x03, 0x03, 0x01, 0x03, 0x03, 0x00, 0x00, 0x00, 0x00, 0x01, 0x03, 0x03, 0x03, 0x03, 0x01, 0x01,
nkhorman 0:c3dcd4c4983a 56 0x03, 0x01, 0x00, 0x00, 0x00, 0x01, 0x03, 0x03, 0x03, 0x03, 0x01, 0x01, 0x03, 0x03, 0x00, 0x00,
nkhorman 0:c3dcd4c4983a 57 0x00, 0x03, 0x03, 0x00, 0x00, 0x00, 0x03, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
nkhorman 0:c3dcd4c4983a 58 0x03, 0x03, 0x03, 0x03, 0x03, 0x01, 0x00, 0x00, 0x00, 0x01, 0x03, 0x01, 0x00, 0x00, 0x00, 0x03,
nkhorman 0:c3dcd4c4983a 59 0x03, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
nkhorman 0:c3dcd4c4983a 60 #if (SSD1306_LCDHEIGHT == 64)
nkhorman 0:c3dcd4c4983a 61 0x00, 0x00, 0x00, 0x80, 0xC0, 0xE0, 0xF0, 0xF9, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x3F, 0x1F, 0x0F,
nkhorman 0:c3dcd4c4983a 62 0x87, 0xC7, 0xF7, 0xFF, 0xFF, 0x1F, 0x1F, 0x3D, 0xFC, 0xF8, 0xF8, 0xF8, 0xF8, 0x7C, 0x7D, 0xFF,
nkhorman 0:c3dcd4c4983a 63 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x7F, 0x3F, 0x0F, 0x07, 0x00, 0x30, 0x30, 0x00, 0x00,
nkhorman 0:c3dcd4c4983a 64 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
nkhorman 0:c3dcd4c4983a 65 0x00, 0x00, 0x00, 0x00, 0xFE, 0xFE, 0xFC, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
nkhorman 0:c3dcd4c4983a 66 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE0, 0xC0, 0x00,
nkhorman 0:c3dcd4c4983a 67 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 0x30, 0x00, 0x00, 0x00, 0x00,
nkhorman 0:c3dcd4c4983a 68 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
nkhorman 0:c3dcd4c4983a 69 0x00, 0xC0, 0xFE, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x7F, 0x7F, 0x3F, 0x1F,
nkhorman 0:c3dcd4c4983a 70 0x0F, 0x07, 0x1F, 0x7F, 0xFF, 0xFF, 0xF8, 0xF8, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFE, 0xF8, 0xE0,
nkhorman 0:c3dcd4c4983a 71 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFE, 0xFE, 0x00, 0x00,
nkhorman 0:c3dcd4c4983a 72 0x00, 0xFC, 0xFE, 0xFC, 0x0C, 0x06, 0x06, 0x0E, 0xFC, 0xF8, 0x00, 0x00, 0xF0, 0xF8, 0x1C, 0x0E,
nkhorman 0:c3dcd4c4983a 73 0x06, 0x06, 0x06, 0x0C, 0xFF, 0xFF, 0xFF, 0x00, 0x00, 0xFE, 0xFE, 0x00, 0x00, 0x00, 0x00, 0xFC,
nkhorman 0:c3dcd4c4983a 74 0xFE, 0xFC, 0x00, 0x18, 0x3C, 0x7E, 0x66, 0xE6, 0xCE, 0x84, 0x00, 0x00, 0x06, 0xFF, 0xFF, 0x06,
nkhorman 0:c3dcd4c4983a 75 0x06, 0xFC, 0xFE, 0xFC, 0x0C, 0x06, 0x06, 0x06, 0x00, 0x00, 0xFE, 0xFE, 0x00, 0x00, 0xC0, 0xF8,
nkhorman 0:c3dcd4c4983a 76 0xFC, 0x4E, 0x46, 0x46, 0x46, 0x4E, 0x7C, 0x78, 0x40, 0x18, 0x3C, 0x76, 0xE6, 0xCE, 0xCC, 0x80,
nkhorman 0:c3dcd4c4983a 77 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
nkhorman 0:c3dcd4c4983a 78 0x00, 0x00, 0x00, 0x00, 0x01, 0x07, 0x0F, 0x1F, 0x1F, 0x3F, 0x3F, 0x3F, 0x3F, 0x1F, 0x0F, 0x03,
nkhorman 0:c3dcd4c4983a 79 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0F, 0x0F, 0x00, 0x00,
nkhorman 0:c3dcd4c4983a 80 0x00, 0x0F, 0x0F, 0x0F, 0x00, 0x00, 0x00, 0x00, 0x0F, 0x0F, 0x00, 0x00, 0x03, 0x07, 0x0E, 0x0C,
nkhorman 0:c3dcd4c4983a 81 0x18, 0x18, 0x0C, 0x06, 0x0F, 0x0F, 0x0F, 0x00, 0x00, 0x01, 0x0F, 0x0E, 0x0C, 0x18, 0x0C, 0x0F,
nkhorman 0:c3dcd4c4983a 82 0x07, 0x01, 0x00, 0x04, 0x0E, 0x0C, 0x18, 0x0C, 0x0F, 0x07, 0x00, 0x00, 0x00, 0x0F, 0x0F, 0x00,
nkhorman 0:c3dcd4c4983a 83 0x00, 0x0F, 0x0F, 0x0F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0F, 0x0F, 0x00, 0x00, 0x00, 0x07,
nkhorman 0:c3dcd4c4983a 84 0x07, 0x0C, 0x0C, 0x18, 0x1C, 0x0C, 0x06, 0x06, 0x00, 0x04, 0x0E, 0x0C, 0x18, 0x0C, 0x0F, 0x07,
nkhorman 0:c3dcd4c4983a 85 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
nkhorman 0:c3dcd4c4983a 86 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
nkhorman 0:c3dcd4c4983a 87 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
nkhorman 0:c3dcd4c4983a 88 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
nkhorman 0:c3dcd4c4983a 89 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
nkhorman 0:c3dcd4c4983a 90 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
nkhorman 0:c3dcd4c4983a 91 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
nkhorman 0:c3dcd4c4983a 92 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
nkhorman 0:c3dcd4c4983a 93 #endif
nkhorman 0:c3dcd4c4983a 94 };
Neal Horman 5:315de3647c9f 95 #endif
nkhorman 0:c3dcd4c4983a 96
Neal Horman 6:1be3e3b46eb7 97 #ifdef SSD_USES_SPI
nkhorman 0:c3dcd4c4983a 98 Adafruit_SSD1306::Adafruit_SSD1306(SPI &spi, PinName DC, PinName RST, PinName CS)
nkhorman 0:c3dcd4c4983a 99 : Adafruit_GFX(SSD1306_LCDWIDTH, SSD1306_LCDHEIGHT)
nkhorman 0:c3dcd4c4983a 100 , rst(RST,false), cs(CS,true), dc(DC,false), mspi(spi)
nkhorman 0:c3dcd4c4983a 101 {
Neal Horman 5:315de3647c9f 102 #ifndef WITHOUT_SPLASH
nkhorman 0:c3dcd4c4983a 103 memcpy(buffer,splashScreen,sizeof(buffer));
Neal Horman 5:315de3647c9f 104 #endif
nkhorman 0:c3dcd4c4983a 105 begin();
nkhorman 0:c3dcd4c4983a 106 display();
nkhorman 0:c3dcd4c4983a 107 };
Neal Horman 6:1be3e3b46eb7 108 #elif defined SSD_USES_I2C
Neal Horman 6:1be3e3b46eb7 109 Adafruit_SSD1306::Adafruit_SSD1306(I2C &i2c, PinName RST)
Neal Horman 6:1be3e3b46eb7 110 : Adafruit_GFX(SSD1306_LCDWIDTH, SSD1306_LCDHEIGHT)
Neal Horman 6:1be3e3b46eb7 111 , rst(RST,false),mi2c(i2c)
Neal Horman 6:1be3e3b46eb7 112 {
Neal Horman 6:1be3e3b46eb7 113
Neal Horman 6:1be3e3b46eb7 114 mi2c.frequency(400000);
Neal Horman 6:1be3e3b46eb7 115 mi2c.start();
Neal Horman 6:1be3e3b46eb7 116 #ifndef WITHOUT_SPLASH
Neal Horman 6:1be3e3b46eb7 117 memcpy(buffer,splashScreen,sizeof(buffer));
Neal Horman 6:1be3e3b46eb7 118 #endif
Neal Horman 6:1be3e3b46eb7 119 begin();
Neal Horman 6:1be3e3b46eb7 120 display();
Neal Horman 6:1be3e3b46eb7 121 };
Neal Horman 6:1be3e3b46eb7 122 #endif
Neal Horman 6:1be3e3b46eb7 123
nkhorman 0:c3dcd4c4983a 124
nkhorman 0:c3dcd4c4983a 125 void Adafruit_SSD1306::begin(uint8_t vccstate)
nkhorman 0:c3dcd4c4983a 126 {
nkhorman 0:c3dcd4c4983a 127 rst = 1;
nkhorman 0:c3dcd4c4983a 128 // VDD (3.3V) goes high at start, lets just chill for a ms
nkhorman 0:c3dcd4c4983a 129 wait_ms(1);
nkhorman 0:c3dcd4c4983a 130 // bring reset low
nkhorman 0:c3dcd4c4983a 131 rst = 0;
nkhorman 0:c3dcd4c4983a 132 // wait 10ms
nkhorman 0:c3dcd4c4983a 133 wait_ms(10);
nkhorman 0:c3dcd4c4983a 134 // bring out of reset
nkhorman 0:c3dcd4c4983a 135 rst = 1;
nkhorman 0:c3dcd4c4983a 136 // turn on VCC (9V?)
nkhorman 0:c3dcd4c4983a 137
nkhorman 0:c3dcd4c4983a 138 #if defined SSD1306_128_32
Neal Horman 5:315de3647c9f 139 #define VAL_MULTIPLEX 0x1F
Neal Horman 5:315de3647c9f 140 #define VAL_COMPINS 0x02
Neal Horman 5:315de3647c9f 141 #define VAL_CONTRAST 0x8F
chrta 4:853097cfa773 142 #elif defined SSD1306_128_64
Neal Horman 5:315de3647c9f 143 #define VAL_MULTIPLEX 0x3F
Neal Horman 5:315de3647c9f 144 #define VAL_COMPINS 0x12
Neal Horman 5:315de3647c9f 145 #define VAL_CONTRAST ((vccstate == SSD1306_EXTERNALVCC) ? 0x9F : 0xCF)
chrta 4:853097cfa773 146 #else
chrta 4:853097cfa773 147 #error "Display dimensions must be defined"
chrta 4:853097cfa773 148 #endif
chrta 4:853097cfa773 149
nkhorman 0:c3dcd4c4983a 150 ssd1306_command(SSD1306_DISPLAYOFF); // 0xAE
nkhorman 0:c3dcd4c4983a 151 ssd1306_command(SSD1306_SETDISPLAYCLOCKDIV); // 0xD5
nkhorman 0:c3dcd4c4983a 152 ssd1306_command(0x80); // the suggested ratio 0x80
nkhorman 0:c3dcd4c4983a 153 ssd1306_command(SSD1306_SETMULTIPLEX); // 0xA8
Neal Horman 5:315de3647c9f 154 ssd1306_command(VAL_MULTIPLEX);
nkhorman 0:c3dcd4c4983a 155 ssd1306_command(SSD1306_SETDISPLAYOFFSET); // 0xD3
nkhorman 0:c3dcd4c4983a 156 ssd1306_command(0x0); // no offset
nkhorman 0:c3dcd4c4983a 157 ssd1306_command(SSD1306_SETSTARTLINE | 0x0); // line #0
nkhorman 0:c3dcd4c4983a 158 ssd1306_command(SSD1306_CHARGEPUMP); // 0x8D
Neal Horman 5:315de3647c9f 159 ssd1306_command((vccstate == SSD1306_EXTERNALVCC) ? 0x10 : 0x14);
nkhorman 0:c3dcd4c4983a 160 ssd1306_command(SSD1306_MEMORYMODE); // 0x20
nkhorman 0:c3dcd4c4983a 161 ssd1306_command(0x00); // 0x0 act like ks0108
nkhorman 0:c3dcd4c4983a 162 ssd1306_command(SSD1306_SEGREMAP | 0x1);
nkhorman 0:c3dcd4c4983a 163 ssd1306_command(SSD1306_COMSCANDEC);
nkhorman 0:c3dcd4c4983a 164 ssd1306_command(SSD1306_SETCOMPINS); // 0xDA
Neal Horman 5:315de3647c9f 165 ssd1306_command(VAL_COMPINS);
nkhorman 0:c3dcd4c4983a 166 ssd1306_command(SSD1306_SETCONTRAST); // 0x81
Neal Horman 5:315de3647c9f 167 ssd1306_command(VAL_CONTRAST);
nkhorman 0:c3dcd4c4983a 168 ssd1306_command(SSD1306_SETPRECHARGE); // 0xd9
Neal Horman 5:315de3647c9f 169 ssd1306_command((vccstate == SSD1306_EXTERNALVCC) ? 0x22 : 0xF1);
nkhorman 0:c3dcd4c4983a 170 ssd1306_command(SSD1306_SETVCOMDETECT); // 0xDB
nkhorman 0:c3dcd4c4983a 171 ssd1306_command(0x40);
nkhorman 0:c3dcd4c4983a 172 ssd1306_command(SSD1306_DISPLAYALLON_RESUME); // 0xA4
nkhorman 0:c3dcd4c4983a 173 ssd1306_command(SSD1306_NORMALDISPLAY); // 0xA6
nkhorman 0:c3dcd4c4983a 174
nkhorman 0:c3dcd4c4983a 175 ssd1306_command(SSD1306_DISPLAYON);//--turn on oled panel
nkhorman 0:c3dcd4c4983a 176 }
nkhorman 0:c3dcd4c4983a 177
nkhorman 0:c3dcd4c4983a 178 // the most basic function, set a single pixel
nkhorman 0:c3dcd4c4983a 179 void Adafruit_SSD1306::drawPixel(int16_t x, int16_t y, uint16_t color)
nkhorman 0:c3dcd4c4983a 180 {
nkhorman 0:c3dcd4c4983a 181 if ((x < 0) || (x >= width()) || (y < 0) || (y >= height()))
nkhorman 0:c3dcd4c4983a 182 return;
nkhorman 0:c3dcd4c4983a 183
nkhorman 0:c3dcd4c4983a 184 // check rotation, move pixel around if necessary
nkhorman 0:c3dcd4c4983a 185 switch (getRotation())
nkhorman 0:c3dcd4c4983a 186 {
nkhorman 0:c3dcd4c4983a 187 case 1:
nkhorman 0:c3dcd4c4983a 188 swap(x, y);
nkhorman 0:c3dcd4c4983a 189 x = _rawWidth - x - 1;
nkhorman 0:c3dcd4c4983a 190 break;
nkhorman 0:c3dcd4c4983a 191 case 2:
nkhorman 0:c3dcd4c4983a 192 x = _rawWidth - x - 1;
nkhorman 0:c3dcd4c4983a 193 y = _rawHeight - y - 1;
nkhorman 0:c3dcd4c4983a 194 break;
nkhorman 0:c3dcd4c4983a 195 case 3:
nkhorman 0:c3dcd4c4983a 196 swap(x, y);
nkhorman 0:c3dcd4c4983a 197 y = _rawHeight - y - 1;
nkhorman 0:c3dcd4c4983a 198 break;
nkhorman 0:c3dcd4c4983a 199 }
nkhorman 0:c3dcd4c4983a 200
nkhorman 0:c3dcd4c4983a 201 // x is which column
nkhorman 0:c3dcd4c4983a 202 if (color == WHITE)
nkhorman 0:c3dcd4c4983a 203 buffer[x+ (y/8)*SSD1306_LCDWIDTH] |= _BV((y%8));
nkhorman 0:c3dcd4c4983a 204 else
nkhorman 0:c3dcd4c4983a 205 buffer[x+ (y/8)*SSD1306_LCDWIDTH] &= ~_BV((y%8));
nkhorman 0:c3dcd4c4983a 206 }
nkhorman 0:c3dcd4c4983a 207
nkhorman 0:c3dcd4c4983a 208 void Adafruit_SSD1306::invertDisplay(bool i)
nkhorman 0:c3dcd4c4983a 209 {
nkhorman 0:c3dcd4c4983a 210 if (i)
nkhorman 0:c3dcd4c4983a 211 ssd1306_command(SSD1306_INVERTDISPLAY);
nkhorman 0:c3dcd4c4983a 212 else
nkhorman 0:c3dcd4c4983a 213 ssd1306_command(SSD1306_NORMALDISPLAY);
nkhorman 0:c3dcd4c4983a 214 }
nkhorman 0:c3dcd4c4983a 215
nkhorman 0:c3dcd4c4983a 216 void Adafruit_SSD1306::ssd1306_command(uint8_t c)
nkhorman 0:c3dcd4c4983a 217 {
Neal Horman 6:1be3e3b46eb7 218 #ifdef SSD_USES_SPI
nkhorman 0:c3dcd4c4983a 219 cs = 1;
nkhorman 0:c3dcd4c4983a 220 dc = 0;
nkhorman 0:c3dcd4c4983a 221 cs = 0;
nkhorman 0:c3dcd4c4983a 222 mspi.write(c);
nkhorman 0:c3dcd4c4983a 223 cs = 1;
Neal Horman 6:1be3e3b46eb7 224
Neal Horman 6:1be3e3b46eb7 225 #elif defined SSD_USES_I2C
Neal Horman 6:1be3e3b46eb7 226 char buff[2] ;
Neal Horman 6:1be3e3b46eb7 227 buff[0] = SSD_Command_Mode ;
Neal Horman 6:1be3e3b46eb7 228 buff[1] = c;
Neal Horman 6:1be3e3b46eb7 229 mi2c.write(SSD_I2C_ADDRESS,buff,sizeof(buff));
Neal Horman 6:1be3e3b46eb7 230 #endif
Neal Horman 6:1be3e3b46eb7 231
nkhorman 0:c3dcd4c4983a 232 }
nkhorman 0:c3dcd4c4983a 233
nkhorman 0:c3dcd4c4983a 234 void Adafruit_SSD1306::ssd1306_data(uint8_t c)
nkhorman 0:c3dcd4c4983a 235 {
Neal Horman 6:1be3e3b46eb7 236 #ifdef SSD_USES_SPI
nkhorman 0:c3dcd4c4983a 237 cs = 1;
nkhorman 0:c3dcd4c4983a 238 dc = 1;
nkhorman 0:c3dcd4c4983a 239 cs = 0;
nkhorman 0:c3dcd4c4983a 240 mspi.write(c);
nkhorman 0:c3dcd4c4983a 241 cs = 1;
Neal Horman 6:1be3e3b46eb7 242 #elif defined SSD_USES_I2C
Neal Horman 6:1be3e3b46eb7 243 char buff[2] ;
Neal Horman 6:1be3e3b46eb7 244 // Setup D/C to switch to data mode
Neal Horman 6:1be3e3b46eb7 245 buff[0] = SSD_Data_Mode;
Neal Horman 6:1be3e3b46eb7 246 buff[1] = c;
Neal Horman 6:1be3e3b46eb7 247 // Write on i2c
Neal Horman 6:1be3e3b46eb7 248 mi2c.write(SSD_I2C_ADDRESS,buff,sizeof(buff));
Neal Horman 6:1be3e3b46eb7 249 #endif
Neal Horman 6:1be3e3b46eb7 250
nkhorman 0:c3dcd4c4983a 251 }
nkhorman 0:c3dcd4c4983a 252
nkhorman 0:c3dcd4c4983a 253 void Adafruit_SSD1306::display(void)
nkhorman 0:c3dcd4c4983a 254 {
nkhorman 0:c3dcd4c4983a 255 ssd1306_command(SSD1306_SETLOWCOLUMN | 0x0); // low col = 0
nkhorman 0:c3dcd4c4983a 256 ssd1306_command(SSD1306_SETHIGHCOLUMN | 0x0); // hi col = 0
nkhorman 0:c3dcd4c4983a 257 ssd1306_command(SSD1306_SETSTARTLINE | 0x0); // line #0
Neal Horman 6:1be3e3b46eb7 258 #ifdef SSD_USES_SPI
nkhorman 0:c3dcd4c4983a 259 cs = 1;
nkhorman 0:c3dcd4c4983a 260 dc = 1;
nkhorman 0:c3dcd4c4983a 261 cs = 0;
nkhorman 0:c3dcd4c4983a 262
nkhorman 0:c3dcd4c4983a 263 for (uint16_t i=0; i<(SSD1306_LCDWIDTH*SSD1306_LCDHEIGHT/8); i++)
nkhorman 0:c3dcd4c4983a 264 mspi.write(buffer[i]);
nkhorman 0:c3dcd4c4983a 265
nkhorman 0:c3dcd4c4983a 266 // i wonder why we have to do this (check datasheet)
nkhorman 0:c3dcd4c4983a 267 if (SSD1306_LCDHEIGHT == 32)
nkhorman 0:c3dcd4c4983a 268 {
nkhorman 0:c3dcd4c4983a 269 for (uint16_t i=0; i<(SSD1306_LCDWIDTH*SSD1306_LCDHEIGHT/8); i++)
nkhorman 0:c3dcd4c4983a 270 mspi.write(0);
nkhorman 0:c3dcd4c4983a 271 }
nkhorman 0:c3dcd4c4983a 272
nkhorman 0:c3dcd4c4983a 273 cs = 1;
Neal Horman 6:1be3e3b46eb7 274
Neal Horman 6:1be3e3b46eb7 275 #elif defined SSD_USES_I2C
Neal Horman 6:1be3e3b46eb7 276 char buff[17] ;
Neal Horman 6:1be3e3b46eb7 277 uint8_t x ;
Neal Horman 6:1be3e3b46eb7 278 // Setup D/C to switch to data mode
Neal Horman 6:1be3e3b46eb7 279 buff[0] = SSD_Data_Mode;
Neal Horman 6:1be3e3b46eb7 280
Neal Horman 6:1be3e3b46eb7 281 // loop trough all OLED buffer and
Neal Horman 6:1be3e3b46eb7 282 // send a bunch of 16 data byte in one xmission
Neal Horman 6:1be3e3b46eb7 283 for (uint16_t i=0; i<(SSD1306_LCDWIDTH*SSD1306_LCDHEIGHT/8); i+=16 )
Neal Horman 6:1be3e3b46eb7 284 {
Neal Horman 6:1be3e3b46eb7 285 for (x=1; x<=16; x++)
Neal Horman 6:1be3e3b46eb7 286 buff[x] = buffer[i+x];
Neal Horman 6:1be3e3b46eb7 287 mi2c.write(SSD_I2C_ADDRESS, buff, 17);
Neal Horman 6:1be3e3b46eb7 288 }
Neal Horman 6:1be3e3b46eb7 289 #endif
nkhorman 0:c3dcd4c4983a 290 }
nkhorman 0:c3dcd4c4983a 291
nkhorman 0:c3dcd4c4983a 292 // clear everything
nkhorman 0:c3dcd4c4983a 293 void Adafruit_SSD1306::clearDisplay(void)
nkhorman 0:c3dcd4c4983a 294 {
nkhorman 0:c3dcd4c4983a 295 memset(buffer,0,sizeof(buffer));
nkhorman 0:c3dcd4c4983a 296 }