Aloïs Wolff / Adafruit_GFX_I2C_SPI

Fork of nkhorman's Adafruit mbed port with added I2C support

Fork of Adafruit_GFX by Neal Horman

Adafruit_SSD1306.cpp@5:b8313591b561, 2014-03-13 (annotated)

Committer:
pommzorz
Date:
Thu Mar 13 10:51:57 2014 +0000
Revision:
5:b8313591b561
Parent:
4:86b9481fa281 
deleted debug serial... :)

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"
pommzorz 4:86b9481fa281 25 #ifdef WITH_SPLASH
pommzorz 4:86b9481fa281 26 uint8_t splashScreen[512] = { //SSD1306_LCDHEIGHT * SSD1306_LCDWIDTH / 8
nkhorman 0:c3dcd4c4983a 27 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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, 0x80,
nkhorman 0:c3dcd4c4983a 31 0x80, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
nkhorman 0:c3dcd4c4983a 32 0x00, 0x80, 0x80, 0xC0, 0xC0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
nkhorman 0:c3dcd4c4983a 33 0x00, 0x00, 0x00, 0x00, 0x00, 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, 0x80, 0xC0, 0xE0, 0xF0, 0xF8, 0xFC, 0xF8, 0xE0, 0x00, 0x00, 0x00, 0x00,
nkhorman 0:c3dcd4c4983a 37 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x80, 0x80,
nkhorman 0:c3dcd4c4983a 38 0x80, 0x80, 0x00, 0x80, 0x80, 0x00, 0x00, 0x00, 0x00, 0x80, 0x80, 0x80, 0x80, 0x80, 0x00, 0xFF,
nkhorman 0:c3dcd4c4983a 39 0xFF, 0xFF, 0x00, 0x00, 0x00, 0x00, 0x80, 0x80, 0x80, 0x80, 0x00, 0x00, 0x80, 0x80, 0x00, 0x00,
nkhorman 0:c3dcd4c4983a 40 0x80, 0xFF, 0xFF, 0x80, 0x80, 0x00, 0x80, 0x80, 0x00, 0x80, 0x80, 0x80, 0x80, 0x00, 0x80, 0x80,
nkhorman 0:c3dcd4c4983a 41 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x80, 0x00, 0x00, 0x8C, 0x8E, 0x84, 0x00, 0x00, 0x80, 0xF8,
nkhorman 0:c3dcd4c4983a 42 0xF8, 0xF8, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
nkhorman 0:c3dcd4c4983a 43 0xF0, 0xF0, 0xF0, 0xF0, 0xF0, 0xF0, 0xF0, 0xF0, 0xF0, 0xF0, 0xF0, 0xF0, 0xE0, 0xE0, 0xC0, 0x80,
nkhorman 0:c3dcd4c4983a 44 0x00, 0xE0, 0xFC, 0xFE, 0xFF, 0xFF, 0xFF, 0x7F, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x00, 0x00,
nkhorman 0:c3dcd4c4983a 45 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFE, 0xFF, 0xC7, 0x01, 0x01,
nkhorman 0:c3dcd4c4983a 46 0x01, 0x01, 0x83, 0xFF, 0xFF, 0x00, 0x00, 0x7C, 0xFE, 0xC7, 0x01, 0x01, 0x01, 0x01, 0x83, 0xFF,
nkhorman 0:c3dcd4c4983a 47 0xFF, 0xFF, 0x00, 0x38, 0xFE, 0xC7, 0x83, 0x01, 0x01, 0x01, 0x83, 0xC7, 0xFF, 0xFF, 0x00, 0x00,
nkhorman 0:c3dcd4c4983a 48 0x01, 0xFF, 0xFF, 0x01, 0x01, 0x00, 0xFF, 0xFF, 0x07, 0x01, 0x01, 0x01, 0x00, 0x00, 0x7F, 0xFF,
nkhorman 0:c3dcd4c4983a 49 0x80, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0x7F, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0x00, 0x00, 0x01, 0xFF,
nkhorman 0:c3dcd4c4983a 50 0xFF, 0xFF, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
nkhorman 0:c3dcd4c4983a 51 0x03, 0x0F, 0x3F, 0x7F, 0x7F, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xE7, 0xC7, 0xC7, 0x8F,
nkhorman 0:c3dcd4c4983a 52 0x8F, 0x9F, 0xBF, 0xFF, 0xFF, 0xC3, 0xC0, 0xF0, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFC, 0xFC, 0xFC,
nkhorman 0:c3dcd4c4983a 53 0xFC, 0xFC, 0xFC, 0xFC, 0xFC, 0xF8, 0xF8, 0xF0, 0xF0, 0xE0, 0xC0, 0x00, 0x01, 0x03, 0x03, 0x03,
nkhorman 0:c3dcd4c4983a 54 0x03, 0x03, 0x01, 0x03, 0x03, 0x00, 0x00, 0x00, 0x00, 0x01, 0x03, 0x03, 0x03, 0x03, 0x01, 0x01,
nkhorman 0:c3dcd4c4983a 55 0x03, 0x01, 0x00, 0x00, 0x00, 0x01, 0x03, 0x03, 0x03, 0x03, 0x01, 0x01, 0x03, 0x03, 0x00, 0x00,
nkhorman 0:c3dcd4c4983a 56 0x00, 0x03, 0x03, 0x00, 0x00, 0x00, 0x03, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
nkhorman 0:c3dcd4c4983a 57 0x03, 0x03, 0x03, 0x03, 0x03, 0x01, 0x00, 0x00, 0x00, 0x01, 0x03, 0x01, 0x00, 0x00, 0x00, 0x03,
pommzorz 4:86b9481fa281 58 0x03, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03
pommzorz 4:86b9481fa281 59 };
nkhorman 0:c3dcd4c4983a 60 #endif
nkhorman 0:c3dcd4c4983a 61
pommzorz 4:86b9481fa281 62 #ifdef IS_SPI
nkhorman 0:c3dcd4c4983a 63 Adafruit_SSD1306::Adafruit_SSD1306(SPI &spi, PinName DC, PinName RST, PinName CS)
nkhorman 0:c3dcd4c4983a 64 : Adafruit_GFX(SSD1306_LCDWIDTH, SSD1306_LCDHEIGHT)
nkhorman 0:c3dcd4c4983a 65 , rst(RST,false), cs(CS,true), dc(DC,false), mspi(spi)
nkhorman 0:c3dcd4c4983a 66 {
pommzorz 4:86b9481fa281 67 //memcpy(buffer,splashScreen,sizeof(buffer));
nkhorman 0:c3dcd4c4983a 68 begin();
nkhorman 0:c3dcd4c4983a 69 display();
nkhorman 0:c3dcd4c4983a 70 };
pommzorz 4:86b9481fa281 71 #elif defined IS_I2C
pommzorz 4:86b9481fa281 72 Adafruit_SSD1306::Adafruit_SSD1306(I2C &i2c, PinName RST)
pommzorz 4:86b9481fa281 73 : Adafruit_GFX(SSD1306_LCDWIDTH, SSD1306_LCDHEIGHT)
pommzorz 5:b8313591b561 74 , rst(RST,false),mi2c(i2c)
pommzorz 4:86b9481fa281 75 {
pommzorz 4:86b9481fa281 76
pommzorz 5:b8313591b561 77 mi2c.frequency(400000);
pommzorz 4:86b9481fa281 78 mi2c.start();
pommzorz 4:86b9481fa281 79 //memcpy(buffer,splashScreen,sizeof(buffer));
pommzorz 4:86b9481fa281 80 begin();
pommzorz 4:86b9481fa281 81 display();
pommzorz 4:86b9481fa281 82 };
pommzorz 4:86b9481fa281 83 #endif
pommzorz 4:86b9481fa281 84
nkhorman 0:c3dcd4c4983a 85
nkhorman 0:c3dcd4c4983a 86 void Adafruit_SSD1306::begin(uint8_t vccstate)
nkhorman 0:c3dcd4c4983a 87 {
nkhorman 0:c3dcd4c4983a 88 rst = 1;
nkhorman 0:c3dcd4c4983a 89 // VDD (3.3V) goes high at start, lets just chill for a ms
nkhorman 0:c3dcd4c4983a 90 wait_ms(1);
nkhorman 0:c3dcd4c4983a 91 // bring reset low
nkhorman 0:c3dcd4c4983a 92 rst = 0;
nkhorman 0:c3dcd4c4983a 93 // wait 10ms
nkhorman 0:c3dcd4c4983a 94 wait_ms(10);
nkhorman 0:c3dcd4c4983a 95 // bring out of reset
nkhorman 0:c3dcd4c4983a 96 rst = 1;
nkhorman 0:c3dcd4c4983a 97 // turn on VCC (9V?)
nkhorman 0:c3dcd4c4983a 98
nkhorman 0:c3dcd4c4983a 99 #if defined SSD1306_128_32
nkhorman 0:c3dcd4c4983a 100 // Init sequence for 128x32 OLED module
nkhorman 0:c3dcd4c4983a 101 ssd1306_command(SSD1306_DISPLAYOFF); // 0xAE
nkhorman 0:c3dcd4c4983a 102 ssd1306_command(SSD1306_SETDISPLAYCLOCKDIV); // 0xD5
nkhorman 0:c3dcd4c4983a 103 ssd1306_command(0x80); // the suggested ratio 0x80
nkhorman 0:c3dcd4c4983a 104 ssd1306_command(SSD1306_SETMULTIPLEX); // 0xA8
nkhorman 0:c3dcd4c4983a 105 ssd1306_command(0x1F);
nkhorman 0:c3dcd4c4983a 106 ssd1306_command(SSD1306_SETDISPLAYOFFSET); // 0xD3
nkhorman 0:c3dcd4c4983a 107 ssd1306_command(0x0); // no offset
nkhorman 0:c3dcd4c4983a 108 ssd1306_command(SSD1306_SETSTARTLINE | 0x0); // line #0
nkhorman 0:c3dcd4c4983a 109 ssd1306_command(SSD1306_CHARGEPUMP); // 0x8D
nkhorman 0:c3dcd4c4983a 110 if (vccstate == SSD1306_EXTERNALVCC)
nkhorman 0:c3dcd4c4983a 111 { ssd1306_command(0x10); }
nkhorman 0:c3dcd4c4983a 112 else
nkhorman 0:c3dcd4c4983a 113 { ssd1306_command(0x14); }
nkhorman 0:c3dcd4c4983a 114 ssd1306_command(SSD1306_MEMORYMODE); // 0x20
nkhorman 0:c3dcd4c4983a 115 ssd1306_command(0x00); // 0x0 act like ks0108
nkhorman 0:c3dcd4c4983a 116 ssd1306_command(SSD1306_SEGREMAP | 0x1);
nkhorman 0:c3dcd4c4983a 117 ssd1306_command(SSD1306_COMSCANDEC);
nkhorman 0:c3dcd4c4983a 118 ssd1306_command(SSD1306_SETCOMPINS); // 0xDA
nkhorman 0:c3dcd4c4983a 119 ssd1306_command(0x02);
nkhorman 0:c3dcd4c4983a 120 ssd1306_command(SSD1306_SETCONTRAST); // 0x81
nkhorman 0:c3dcd4c4983a 121 ssd1306_command(0x8F);
nkhorman 0:c3dcd4c4983a 122 ssd1306_command(SSD1306_SETPRECHARGE); // 0xd9
nkhorman 0:c3dcd4c4983a 123 if (vccstate == SSD1306_EXTERNALVCC)
nkhorman 0:c3dcd4c4983a 124 { ssd1306_command(0x22); }
nkhorman 0:c3dcd4c4983a 125 else
nkhorman 0:c3dcd4c4983a 126 { ssd1306_command(0xF1); }
nkhorman 0:c3dcd4c4983a 127 ssd1306_command(SSD1306_SETVCOMDETECT); // 0xDB
nkhorman 0:c3dcd4c4983a 128 ssd1306_command(0x40);
nkhorman 0:c3dcd4c4983a 129 ssd1306_command(SSD1306_DISPLAYALLON_RESUME); // 0xA4
nkhorman 0:c3dcd4c4983a 130 ssd1306_command(SSD1306_NORMALDISPLAY); // 0xA6
nkhorman 0:c3dcd4c4983a 131 #endif
nkhorman 0:c3dcd4c4983a 132
nkhorman 0:c3dcd4c4983a 133 #if defined SSD1306_128_64
nkhorman 0:c3dcd4c4983a 134 // Init sequence for 128x64 OLED module
nkhorman 0:c3dcd4c4983a 135 ssd1306_command(SSD1306_DISPLAYOFF); // 0xAE
nkhorman 0:c3dcd4c4983a 136 ssd1306_command(SSD1306_SETDISPLAYCLOCKDIV); // 0xD5
nkhorman 0:c3dcd4c4983a 137 ssd1306_command(0x80); // the suggested ratio 0x80
nkhorman 0:c3dcd4c4983a 138 ssd1306_command(SSD1306_SETMULTIPLEX); // 0xA8
nkhorman 0:c3dcd4c4983a 139 ssd1306_command(0x3F);
nkhorman 0:c3dcd4c4983a 140 ssd1306_command(SSD1306_SETDISPLAYOFFSET); // 0xD3
nkhorman 0:c3dcd4c4983a 141 ssd1306_command(0x0); // no offset
nkhorman 0:c3dcd4c4983a 142 ssd1306_command(SSD1306_SETSTARTLINE | 0x0); // line #0
nkhorman 0:c3dcd4c4983a 143 ssd1306_command(SSD1306_CHARGEPUMP); // 0x8D
nkhorman 0:c3dcd4c4983a 144 if (vccstate == SSD1306_EXTERNALVCC)
nkhorman 0:c3dcd4c4983a 145 { ssd1306_command(0x10); }
nkhorman 0:c3dcd4c4983a 146 else
nkhorman 0:c3dcd4c4983a 147 { ssd1306_command(0x14); }
nkhorman 0:c3dcd4c4983a 148 ssd1306_command(SSD1306_MEMORYMODE); // 0x20
nkhorman 0:c3dcd4c4983a 149 ssd1306_command(0x00); // 0x0 act like ks0108
nkhorman 0:c3dcd4c4983a 150 ssd1306_command(SSD1306_SEGREMAP | 0x1);
nkhorman 0:c3dcd4c4983a 151 ssd1306_command(SSD1306_COMSCANDEC);
nkhorman 0:c3dcd4c4983a 152 ssd1306_command(SSD1306_SETCOMPINS); // 0xDA
nkhorman 0:c3dcd4c4983a 153 ssd1306_command(0x12);
nkhorman 0:c3dcd4c4983a 154 ssd1306_command(SSD1306_SETCONTRAST); // 0x81
nkhorman 0:c3dcd4c4983a 155 if (vccstate == SSD1306_EXTERNALVCC)
nkhorman 0:c3dcd4c4983a 156 { ssd1306_command(0x9F); }
nkhorman 0:c3dcd4c4983a 157 else
nkhorman 0:c3dcd4c4983a 158 { ssd1306_command(0xCF); }
nkhorman 0:c3dcd4c4983a 159 ssd1306_command(SSD1306_SETPRECHARGE); // 0xd9
nkhorman 0:c3dcd4c4983a 160 if (vccstate == SSD1306_EXTERNALVCC)
nkhorman 0:c3dcd4c4983a 161 { ssd1306_command(0x22); }
nkhorman 0:c3dcd4c4983a 162 else
nkhorman 0:c3dcd4c4983a 163 { ssd1306_command(0xF1); }
nkhorman 0:c3dcd4c4983a 164 ssd1306_command(SSD1306_SETVCOMDETECT); // 0xDB
nkhorman 0:c3dcd4c4983a 165 ssd1306_command(0x40);
nkhorman 0:c3dcd4c4983a 166 ssd1306_command(SSD1306_DISPLAYALLON_RESUME); // 0xA4
nkhorman 0:c3dcd4c4983a 167 ssd1306_command(SSD1306_NORMALDISPLAY); // 0xA6
nkhorman 0:c3dcd4c4983a 168 #endif
nkhorman 0:c3dcd4c4983a 169
nkhorman 0:c3dcd4c4983a 170 ssd1306_command(SSD1306_DISPLAYON);//--turn on oled panel
nkhorman 0:c3dcd4c4983a 171 }
nkhorman 0:c3dcd4c4983a 172
nkhorman 0:c3dcd4c4983a 173 // the most basic function, set a single pixel
nkhorman 0:c3dcd4c4983a 174 void Adafruit_SSD1306::drawPixel(int16_t x, int16_t y, uint16_t color)
nkhorman 0:c3dcd4c4983a 175 {
nkhorman 0:c3dcd4c4983a 176 if ((x < 0) || (x >= width()) || (y < 0) || (y >= height()))
nkhorman 0:c3dcd4c4983a 177 return;
nkhorman 0:c3dcd4c4983a 178
nkhorman 0:c3dcd4c4983a 179 // check rotation, move pixel around if necessary
nkhorman 0:c3dcd4c4983a 180 switch (getRotation())
nkhorman 0:c3dcd4c4983a 181 {
nkhorman 0:c3dcd4c4983a 182 case 1:
nkhorman 0:c3dcd4c4983a 183 swap(x, y);
nkhorman 0:c3dcd4c4983a 184 x = _rawWidth - x - 1;
nkhorman 0:c3dcd4c4983a 185 break;
nkhorman 0:c3dcd4c4983a 186 case 2:
nkhorman 0:c3dcd4c4983a 187 x = _rawWidth - x - 1;
nkhorman 0:c3dcd4c4983a 188 y = _rawHeight - y - 1;
nkhorman 0:c3dcd4c4983a 189 break;
nkhorman 0:c3dcd4c4983a 190 case 3:
nkhorman 0:c3dcd4c4983a 191 swap(x, y);
nkhorman 0:c3dcd4c4983a 192 y = _rawHeight - y - 1;
nkhorman 0:c3dcd4c4983a 193 break;
nkhorman 0:c3dcd4c4983a 194 }
nkhorman 0:c3dcd4c4983a 195
nkhorman 0:c3dcd4c4983a 196 // x is which column
nkhorman 0:c3dcd4c4983a 197 if (color == WHITE)
nkhorman 0:c3dcd4c4983a 198 buffer[x+ (y/8)*SSD1306_LCDWIDTH] |= _BV((y%8));
nkhorman 0:c3dcd4c4983a 199 else
nkhorman 0:c3dcd4c4983a 200 buffer[x+ (y/8)*SSD1306_LCDWIDTH] &= ~_BV((y%8));
nkhorman 0:c3dcd4c4983a 201 }
nkhorman 0:c3dcd4c4983a 202
nkhorman 0:c3dcd4c4983a 203 void Adafruit_SSD1306::invertDisplay(bool i)
nkhorman 0:c3dcd4c4983a 204 {
nkhorman 0:c3dcd4c4983a 205 if (i)
nkhorman 0:c3dcd4c4983a 206 ssd1306_command(SSD1306_INVERTDISPLAY);
nkhorman 0:c3dcd4c4983a 207 else
nkhorman 0:c3dcd4c4983a 208 ssd1306_command(SSD1306_NORMALDISPLAY);
nkhorman 0:c3dcd4c4983a 209 }
nkhorman 0:c3dcd4c4983a 210
nkhorman 0:c3dcd4c4983a 211 void Adafruit_SSD1306::ssd1306_command(uint8_t c)
nkhorman 0:c3dcd4c4983a 212 {
pommzorz 4:86b9481fa281 213 #ifdef IS_SPI
nkhorman 0:c3dcd4c4983a 214 cs = 1;
nkhorman 0:c3dcd4c4983a 215 dc = 0;
nkhorman 0:c3dcd4c4983a 216 cs = 0;
nkhorman 0:c3dcd4c4983a 217 mspi.write(c);
nkhorman 0:c3dcd4c4983a 218 cs = 1;
pommzorz 4:86b9481fa281 219
pommzorz 4:86b9481fa281 220 #elif defined IS_I2C
pommzorz 4:86b9481fa281 221 char buff[2] ;
pommzorz 4:86b9481fa281 222 buff[0] = SSD_Command_Mode ;
pommzorz 4:86b9481fa281 223 buff[1] = c;
pommzorz 5:b8313591b561 224 mi2c.write(I2C_ADDRESS,buff,sizeof(buff));
pommzorz 4:86b9481fa281 225
pommzorz 4:86b9481fa281 226 #endif
pommzorz 4:86b9481fa281 227
nkhorman 0:c3dcd4c4983a 228 }
nkhorman 0:c3dcd4c4983a 229
nkhorman 0:c3dcd4c4983a 230 void Adafruit_SSD1306::ssd1306_data(uint8_t c)
nkhorman 0:c3dcd4c4983a 231 {
pommzorz 4:86b9481fa281 232 #ifdef IS_SPI
nkhorman 0:c3dcd4c4983a 233 cs = 1;
nkhorman 0:c3dcd4c4983a 234 dc = 1;
nkhorman 0:c3dcd4c4983a 235 cs = 0;
nkhorman 0:c3dcd4c4983a 236 mspi.write(c);
nkhorman 0:c3dcd4c4983a 237 cs = 1;
pommzorz 4:86b9481fa281 238 #elif defined IS_I2C
pommzorz 4:86b9481fa281 239 char buff[2] ;
pommzorz 4:86b9481fa281 240 // Setup D/C to switch to data mode
pommzorz 4:86b9481fa281 241 buff[0] = SSD_Data_Mode;
pommzorz 4:86b9481fa281 242 buff[1] = c;
pommzorz 4:86b9481fa281 243 // Write on i2c
pommzorz 5:b8313591b561 244 mi2c.write(I2C_ADDRESS,buff,sizeof(buff));
pommzorz 4:86b9481fa281 245 #endif
pommzorz 4:86b9481fa281 246
nkhorman 0:c3dcd4c4983a 247 }
nkhorman 0:c3dcd4c4983a 248
nkhorman 0:c3dcd4c4983a 249 void Adafruit_SSD1306::display(void)
nkhorman 0:c3dcd4c4983a 250 {
nkhorman 0:c3dcd4c4983a 251 ssd1306_command(SSD1306_SETLOWCOLUMN | 0x0); // low col = 0
nkhorman 0:c3dcd4c4983a 252 ssd1306_command(SSD1306_SETHIGHCOLUMN | 0x0); // hi col = 0
nkhorman 0:c3dcd4c4983a 253 ssd1306_command(SSD1306_SETSTARTLINE | 0x0); // line #0
pommzorz 4:86b9481fa281 254 #ifdef IS_SPI
nkhorman 0:c3dcd4c4983a 255 cs = 1;
nkhorman 0:c3dcd4c4983a 256 dc = 1;
nkhorman 0:c3dcd4c4983a 257 cs = 0;
nkhorman 0:c3dcd4c4983a 258
nkhorman 0:c3dcd4c4983a 259 for (uint16_t i=0; i<(SSD1306_LCDWIDTH*SSD1306_LCDHEIGHT/8); i++)
nkhorman 0:c3dcd4c4983a 260 mspi.write(buffer[i]);
nkhorman 0:c3dcd4c4983a 261
nkhorman 0:c3dcd4c4983a 262 // i wonder why we have to do this (check datasheet)
nkhorman 0:c3dcd4c4983a 263 if (SSD1306_LCDHEIGHT == 32)
nkhorman 0:c3dcd4c4983a 264 {
nkhorman 0:c3dcd4c4983a 265 for (uint16_t i=0; i<(SSD1306_LCDWIDTH*SSD1306_LCDHEIGHT/8); i++)
nkhorman 0:c3dcd4c4983a 266 mspi.write(0);
nkhorman 0:c3dcd4c4983a 267 }
nkhorman 0:c3dcd4c4983a 268
nkhorman 0:c3dcd4c4983a 269 cs = 1;
pommzorz 4:86b9481fa281 270
pommzorz 4:86b9481fa281 271 #elif defined IS_I2C
pommzorz 4:86b9481fa281 272 char buff[17] ;
pommzorz 4:86b9481fa281 273 uint8_t x ;
pommzorz 4:86b9481fa281 274 // Setup D/C to switch to data mode
pommzorz 4:86b9481fa281 275 buff[0] = SSD_Data_Mode;
pommzorz 4:86b9481fa281 276
pommzorz 4:86b9481fa281 277 // loop trough all OLED buffer and
pommzorz 4:86b9481fa281 278 // send a bunch of 16 data byte in one xmission
pommzorz 4:86b9481fa281 279 for (uint16_t i=0; i<(SSD1306_LCDWIDTH*SSD1306_LCDHEIGHT/8); i+=16 )
pommzorz 4:86b9481fa281 280 {
pommzorz 4:86b9481fa281 281 for (x=1; x<=16; x++)
pommzorz 4:86b9481fa281 282 buff[x] = buffer[i+x];
pommzorz 5:b8313591b561 283 mi2c.write(I2C_ADDRESS, buff, 17);
pommzorz 4:86b9481fa281 284 }
pommzorz 4:86b9481fa281 285 #endif
nkhorman 0:c3dcd4c4983a 286 }
nkhorman 0:c3dcd4c4983a 287
nkhorman 0:c3dcd4c4983a 288 // clear everything
nkhorman 0:c3dcd4c4983a 289 void Adafruit_SSD1306::clearDisplay(void)
nkhorman 0:c3dcd4c4983a 290 {
nkhorman 0:c3dcd4c4983a 291 memset(buffer,0,sizeof(buffer));
nkhorman 0:c3dcd4c4983a 292 }