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:
- 5:315de3647c9f
- Parent:
- 4:853097cfa773
- Child:
- 6:1be3e3b46eb7
diff -r 853097cfa773 -r 315de3647c9f Adafruit_SSD1306.cpp --- a/Adafruit_SSD1306.cpp Tue Apr 29 19:27:01 2014 +0000 +++ b/Adafruit_SSD1306.cpp Thu Oct 16 23:18:25 2014 -0500 @@ -23,6 +23,7 @@ #include "mbed.h" #include "Adafruit_SSD1306.h" +#ifndef WITHOUT_SPLASH 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, @@ -91,12 +92,15 @@ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 #endif }; +#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) { +#ifndef WITHOUT_SPLASH memcpy(buffer,splashScreen,sizeof(buffer)); +#endif begin(); display(); }; @@ -115,13 +119,13 @@ // turn on VCC (9V?) #if defined SSD1306_128_32 - uint8_t setmultiplex = 0x1F; - uint8_t setcompins = 0x02; - uint8_t setcontrast = 0x8F; +#define VAL_MULTIPLEX 0x1F +#define VAL_COMPINS 0x02 +#define VAL_CONTRAST 0x8F #elif defined SSD1306_128_64 - uint8_t setmultiplex = 0x3F; - uint8_t setcompins = 0x12; - uint8_t setcontrast = (vccstate == SSD1306_EXTERNALVCC) ? 0x9F : 0xCF; +#define VAL_MULTIPLEX 0x3F +#define VAL_COMPINS 0x12 +#define VAL_CONTRAST ((vccstate == SSD1306_EXTERNALVCC) ? 0x9F : 0xCF) #else #error "Display dimensions must be defined" #endif @@ -130,28 +134,22 @@ ssd1306_command(SSD1306_SETDISPLAYCLOCKDIV); // 0xD5 ssd1306_command(0x80); // the suggested ratio 0x80 ssd1306_command(SSD1306_SETMULTIPLEX); // 0xA8 - ssd1306_command(setmultiplex); + ssd1306_command(VAL_MULTIPLEX); 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((vccstate == SSD1306_EXTERNALVCC) ? 0x10 : 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(setcompins); + ssd1306_command(VAL_COMPINS); ssd1306_command(SSD1306_SETCONTRAST); // 0x81 - ssd1306_command(setcontrast); + ssd1306_command(VAL_CONTRAST); ssd1306_command(SSD1306_SETPRECHARGE); // 0xd9 - if (vccstate == SSD1306_EXTERNALVCC) - { ssd1306_command(0x22); } - else - { ssd1306_command(0xF1); } + ssd1306_command((vccstate == SSD1306_EXTERNALVCC) ? 0x22 : 0xF1); ssd1306_command(SSD1306_SETVCOMDETECT); // 0xDB ssd1306_command(0x40); ssd1306_command(SSD1306_DISPLAYALLON_RESUME); // 0xA4