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Bracciale Slave

Adafruit_SSD1306.cpp@19:e5d8d6e7fac5, 2019-02-25 (annotated)

Committer:
gandhi4
Date:
Mon Feb 25 21:14:16 2019 +0000
Revision:
19:e5d8d6e7fac5
Parent:
18:a267f00528be 
a

Who changed what in which revision?

UserRevisionLine numberNew contents of line
nkhorman 0:c3dcd4c4983a 1 #include "mbed.h"
nkhorman 0:c3dcd4c4983a 2 #include "Adafruit_SSD1306.h"
nkhorman 0:c3dcd4c4983a 3
nkhorman 9:ddb97c9850a2 4 #define SSD1306_SETCONTRAST 0x81
nkhorman 9:ddb97c9850a2 5 #define SSD1306_DISPLAYALLON_RESUME 0xA4
nkhorman 9:ddb97c9850a2 6 #define SSD1306_DISPLAYALLON 0xA5
nkhorman 9:ddb97c9850a2 7 #define SSD1306_NORMALDISPLAY 0xA6
nkhorman 9:ddb97c9850a2 8 #define SSD1306_INVERTDISPLAY 0xA7
nkhorman 9:ddb97c9850a2 9 #define SSD1306_DISPLAYOFF 0xAE
nkhorman 9:ddb97c9850a2 10 #define SSD1306_DISPLAYON 0xAF
nkhorman 9:ddb97c9850a2 11 #define SSD1306_SETDISPLAYOFFSET 0xD3
nkhorman 9:ddb97c9850a2 12 #define SSD1306_SETCOMPINS 0xDA
nkhorman 9:ddb97c9850a2 13 #define SSD1306_SETVCOMDETECT 0xDB
nkhorman 9:ddb97c9850a2 14 #define SSD1306_SETDISPLAYCLOCKDIV 0xD5
nkhorman 9:ddb97c9850a2 15 #define SSD1306_SETPRECHARGE 0xD9
nkhorman 9:ddb97c9850a2 16 #define SSD1306_SETMULTIPLEX 0xA8
nkhorman 9:ddb97c9850a2 17 #define SSD1306_SETLOWCOLUMN 0x00
nkhorman 9:ddb97c9850a2 18 #define SSD1306_SETHIGHCOLUMN 0x10
nkhorman 9:ddb97c9850a2 19 #define SSD1306_SETSTARTLINE 0x40
nkhorman 9:ddb97c9850a2 20 #define SSD1306_MEMORYMODE 0x20
nkhorman 9:ddb97c9850a2 21 #define SSD1306_COMSCANINC 0xC0
nkhorman 9:ddb97c9850a2 22 #define SSD1306_COMSCANDEC 0xC8
nkhorman 9:ddb97c9850a2 23 #define SSD1306_SEGREMAP 0xA0
nkhorman 9:ddb97c9850a2 24 #define SSD1306_CHARGEPUMP 0x8D
nkhorman 0:c3dcd4c4983a 25
nkhorman 0:c3dcd4c4983a 26 void Adafruit_SSD1306::begin(uint8_t vccstate)
nkhorman 0:c3dcd4c4983a 27 {
nkhorman 9:ddb97c9850a2 28
nkhorman 9:ddb97c9850a2 29 command(SSD1306_DISPLAYOFF);
nkhorman 9:ddb97c9850a2 30 command(SSD1306_SETDISPLAYCLOCKDIV);
nkhorman 9:ddb97c9850a2 31 command(0x80); // the suggested ratio 0x80
nkhorman 9:ddb97c9850a2 32
nkhorman 9:ddb97c9850a2 33 command(SSD1306_SETMULTIPLEX);
nkhorman 9:ddb97c9850a2 34 command(_rawHeight-1);
nkhorman 9:ddb97c9850a2 35
nkhorman 9:ddb97c9850a2 36 command(SSD1306_SETDISPLAYOFFSET);
nkhorman 9:ddb97c9850a2 37 command(0x0); // no offset
nkhorman 9:ddb97c9850a2 38
nkhorman 9:ddb97c9850a2 39 command(SSD1306_SETSTARTLINE | 0x0); // line #0
nkhorman 9:ddb97c9850a2 40
nkhorman 9:ddb97c9850a2 41 command(SSD1306_CHARGEPUMP);
nkhorman 9:ddb97c9850a2 42 command((vccstate == SSD1306_EXTERNALVCC) ? 0x10 : 0x14);
nkhorman 9:ddb97c9850a2 43
nkhorman 9:ddb97c9850a2 44 command(SSD1306_MEMORYMODE);
nkhorman 9:ddb97c9850a2 45 command(0x00); // 0x0 act like ks0108
chrta 4:853097cfa773 46
nkhorman 9:ddb97c9850a2 47 command(SSD1306_SEGREMAP | 0x1);
nkhorman 9:ddb97c9850a2 48
nkhorman 9:ddb97c9850a2 49 command(SSD1306_COMSCANDEC);
nkhorman 9:ddb97c9850a2 50
nkhorman 9:ddb97c9850a2 51 command(SSD1306_SETCOMPINS);
nkhorman 9:ddb97c9850a2 52 command(_rawHeight == 32 ? 0x02 : 0x12); // TODO - calculate based on _rawHieght ?
nkhorman 9:ddb97c9850a2 53
nkhorman 9:ddb97c9850a2 54 command(SSD1306_SETCONTRAST);
nkhorman 9:ddb97c9850a2 55 command(_rawHeight == 32 ? 0x8F : ((vccstate == SSD1306_EXTERNALVCC) ? 0x9F : 0xCF) );
nkhorman 9:ddb97c9850a2 56
nkhorman 9:ddb97c9850a2 57 command(SSD1306_SETPRECHARGE);
nkhorman 9:ddb97c9850a2 58 command((vccstate == SSD1306_EXTERNALVCC) ? 0x22 : 0xF1);
nkhorman 9:ddb97c9850a2 59
nkhorman 9:ddb97c9850a2 60 command(SSD1306_SETVCOMDETECT);
nkhorman 9:ddb97c9850a2 61 command(0x40);
nkhorman 9:ddb97c9850a2 62
nkhorman 9:ddb97c9850a2 63 command(SSD1306_DISPLAYALLON_RESUME);
nkhorman 9:ddb97c9850a2 64
JojoS 16:7fb1d4d3525d 65 command(SSD1306_NORMALDISPLAY);
nkhorman 0:c3dcd4c4983a 66
JojoS 16:7fb1d4d3525d 67 command(SSD1306_DISPLAYON);
nkhorman 0:c3dcd4c4983a 68 }
nkhorman 0:c3dcd4c4983a 69
nkhorman 9:ddb97c9850a2 70 // Set a single pixel
nkhorman 0:c3dcd4c4983a 71 void Adafruit_SSD1306::drawPixel(int16_t x, int16_t y, uint16_t color)
nkhorman 0:c3dcd4c4983a 72 {
nkhorman 0:c3dcd4c4983a 73 if ((x < 0) || (x >= width()) || (y < 0) || (y >= height()))
nkhorman 0:c3dcd4c4983a 74 return;
nkhorman 0:c3dcd4c4983a 75
gandhi4 19:e5d8d6e7fac5 76
nkhorman 0:c3dcd4c4983a 77
nkhorman 0:c3dcd4c4983a 78 // x is which column
nkhorman 0:c3dcd4c4983a 79 if (color == WHITE)
nkhorman 9:ddb97c9850a2 80 buffer[x+ (y/8)*_rawWidth] |= _BV((y%8));
nkhorman 9:ddb97c9850a2 81 else // else black
nkhorman 9:ddb97c9850a2 82 buffer[x+ (y/8)*_rawWidth] &= ~_BV((y%8));
nkhorman 0:c3dcd4c4983a 83 }
nkhorman 0:c3dcd4c4983a 84
nkhorman 0:c3dcd4c4983a 85 void Adafruit_SSD1306::invertDisplay(bool i)
nkhorman 0:c3dcd4c4983a 86 {
nkhorman 9:ddb97c9850a2 87 command(i ? SSD1306_INVERTDISPLAY : SSD1306_NORMALDISPLAY);
nkhorman 0:c3dcd4c4983a 88 }
nkhorman 0:c3dcd4c4983a 89
nkhorman 9:ddb97c9850a2 90 // Send the display buffer out to the display
nkhorman 9:ddb97c9850a2 91 void Adafruit_SSD1306::display(void)
nkhorman 0:c3dcd4c4983a 92 {
nkhorman 9:ddb97c9850a2 93 command(SSD1306_SETLOWCOLUMN | 0x0); // low col = 0
nkhorman 9:ddb97c9850a2 94 command(SSD1306_SETHIGHCOLUMN | 0x0); // hi col = 0
nkhorman 9:ddb97c9850a2 95 command(SSD1306_SETSTARTLINE | 0x0); // line #0
nkhorman 9:ddb97c9850a2 96 sendDisplayBuffer();
nkhorman 0:c3dcd4c4983a 97 }
nkhorman 0:c3dcd4c4983a 98
nkhorman 9:ddb97c9850a2 99 // Clear the display buffer. Requires a display() call at some point afterwards
nkhorman 9:ddb97c9850a2 100 void Adafruit_SSD1306::clearDisplay(void)
nkhorman 0:c3dcd4c4983a 101 {
nkhorman 9:ddb97c9850a2 102 std::fill(buffer.begin(),buffer.end(),0);
nkhorman 0:c3dcd4c4983a 103 }
nkhorman 0:c3dcd4c4983a 104
nkhorman 9:ddb97c9850a2 105