299 lines
13 KiB
C++
299 lines
13 KiB
C++
// some of this code was written by <cstone@pobox.com> originally;
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// it is in the public domain.
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//#include <Wire.h>
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#include <avr/pgmspace.h>
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#include <util/delay.h>
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#include <stdlib.h>
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#include "Adafruit_GFX.h"
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#include "Adafruit_SSD1306.h"
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#include "glcdfont.c"
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static uint8_t is_reversed = 0;
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// a 5x7 font table
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extern uint8_t PROGMEM font[];
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// the memory buffer for the LCD
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static uint8_t buffer[SSD1306_LCDHEIGHT * SSD1306_LCDWIDTH / 8] = {
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80,
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0x80, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x80, 0x80, 0xC0, 0xC0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x80, 0xC0, 0xE0, 0xF0, 0xF8, 0xFC, 0xF8, 0xE0, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x80, 0x80,
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0x80, 0x80, 0x00, 0x80, 0x80, 0x00, 0x00, 0x00, 0x00, 0x80, 0x80, 0x80, 0x80, 0x80, 0x00, 0xFF,
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0xFF, 0xFF, 0x00, 0x00, 0x00, 0x00, 0x80, 0x80, 0x80, 0x80, 0x00, 0x00, 0x80, 0x80, 0x00, 0x00,
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0x80, 0xFF, 0xFF, 0x80, 0x80, 0x00, 0x80, 0x80, 0x00, 0x80, 0x80, 0x80, 0x80, 0x00, 0x80, 0x80,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x80, 0x00, 0x00, 0x8C, 0x8E, 0x84, 0x00, 0x00, 0x80, 0xF8,
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0xF8, 0xF8, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0xF0, 0xF0, 0xF0, 0xF0, 0xF0, 0xF0, 0xF0, 0xF0, 0xF0, 0xF0, 0xF0, 0xF0, 0xE0, 0xE0, 0xC0, 0x80,
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0x00, 0xE0, 0xFC, 0xFE, 0xFF, 0xFF, 0xFF, 0x7F, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFE, 0xFF, 0xC7, 0x01, 0x01,
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0x01, 0x01, 0x83, 0xFF, 0xFF, 0x00, 0x00, 0x7C, 0xFE, 0xC7, 0x01, 0x01, 0x01, 0x01, 0x83, 0xFF,
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0xFF, 0xFF, 0x00, 0x38, 0xFE, 0xC7, 0x83, 0x01, 0x01, 0x01, 0x83, 0xC7, 0xFF, 0xFF, 0x00, 0x00,
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0x01, 0xFF, 0xFF, 0x01, 0x01, 0x00, 0xFF, 0xFF, 0x07, 0x01, 0x01, 0x01, 0x00, 0x00, 0x7F, 0xFF,
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0x80, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0x7F, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0x00, 0x00, 0x01, 0xFF,
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0xFF, 0xFF, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x03, 0x0F, 0x3F, 0x7F, 0x7F, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xE7, 0xC7, 0xC7, 0x8F,
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0x8F, 0x9F, 0xBF, 0xFF, 0xFF, 0xC3, 0xC0, 0xF0, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFC, 0xFC, 0xFC,
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0xFC, 0xFC, 0xFC, 0xFC, 0xFC, 0xF8, 0xF8, 0xF0, 0xF0, 0xE0, 0xC0, 0x00, 0x01, 0x03, 0x03, 0x03,
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0x03, 0x03, 0x01, 0x03, 0x03, 0x00, 0x00, 0x00, 0x00, 0x01, 0x03, 0x03, 0x03, 0x03, 0x01, 0x01,
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0x03, 0x01, 0x00, 0x00, 0x00, 0x01, 0x03, 0x03, 0x03, 0x03, 0x01, 0x01, 0x03, 0x03, 0x00, 0x00,
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0x00, 0x03, 0x03, 0x00, 0x00, 0x00, 0x03, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
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0x03, 0x03, 0x03, 0x03, 0x03, 0x01, 0x00, 0x00, 0x00, 0x01, 0x03, 0x01, 0x00, 0x00, 0x00, 0x03,
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0x03, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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#if (SSD1306_LCDHEIGHT == 64)
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0x00, 0x00, 0x00, 0x80, 0xC0, 0xE0, 0xF0, 0xF9, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x3F, 0x1F, 0x0F,
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0x87, 0xC7, 0xF7, 0xFF, 0xFF, 0x1F, 0x1F, 0x3D, 0xFC, 0xF8, 0xF8, 0xF8, 0xF8, 0x7C, 0x7D, 0xFF,
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0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x7F, 0x3F, 0x0F, 0x07, 0x00, 0x30, 0x30, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0xFE, 0xFE, 0xFC, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE0, 0xC0, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 0x30, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0xC0, 0xFE, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x7F, 0x7F, 0x3F, 0x1F,
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0x0F, 0x07, 0x1F, 0x7F, 0xFF, 0xFF, 0xF8, 0xF8, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFE, 0xF8, 0xE0,
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0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFE, 0xFE, 0x00, 0x00,
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0x00, 0xFC, 0xFE, 0xFC, 0x0C, 0x06, 0x06, 0x0E, 0xFC, 0xF8, 0x00, 0x00, 0xF0, 0xF8, 0x1C, 0x0E,
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0x06, 0x06, 0x06, 0x0C, 0xFF, 0xFF, 0xFF, 0x00, 0x00, 0xFE, 0xFE, 0x00, 0x00, 0x00, 0x00, 0xFC,
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0xFE, 0xFC, 0x00, 0x18, 0x3C, 0x7E, 0x66, 0xE6, 0xCE, 0x84, 0x00, 0x00, 0x06, 0xFF, 0xFF, 0x06,
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0x06, 0xFC, 0xFE, 0xFC, 0x0C, 0x06, 0x06, 0x06, 0x00, 0x00, 0xFE, 0xFE, 0x00, 0x00, 0xC0, 0xF8,
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0xFC, 0x4E, 0x46, 0x46, 0x46, 0x4E, 0x7C, 0x78, 0x40, 0x18, 0x3C, 0x76, 0xE6, 0xCE, 0xCC, 0x80,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x01, 0x07, 0x0F, 0x1F, 0x1F, 0x3F, 0x3F, 0x3F, 0x3F, 0x1F, 0x0F, 0x03,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0F, 0x0F, 0x00, 0x00,
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0x00, 0x0F, 0x0F, 0x0F, 0x00, 0x00, 0x00, 0x00, 0x0F, 0x0F, 0x00, 0x00, 0x03, 0x07, 0x0E, 0x0C,
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0x18, 0x18, 0x0C, 0x06, 0x0F, 0x0F, 0x0F, 0x00, 0x00, 0x01, 0x0F, 0x0E, 0x0C, 0x18, 0x0C, 0x0F,
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0x07, 0x01, 0x00, 0x04, 0x0E, 0x0C, 0x18, 0x0C, 0x0F, 0x07, 0x00, 0x00, 0x00, 0x0F, 0x0F, 0x00,
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0x00, 0x0F, 0x0F, 0x0F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0F, 0x0F, 0x00, 0x00, 0x00, 0x07,
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0x07, 0x0C, 0x0C, 0x18, 0x1C, 0x0C, 0x06, 0x06, 0x00, 0x04, 0x0E, 0x0C, 0x18, 0x0C, 0x0F, 0x07,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
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#endif
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};
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// the most basic function, set a single pixel
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void Adafruit_SSD1306::drawPixel(uint8_t x, uint8_t y, uint8_t color) {
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if ((x >= SSD1306_LCDWIDTH) || (y >= SSD1306_LCDHEIGHT))
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return;
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// x is which column
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if (color == WHITE)
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buffer[x+ (y/8)*SSD1306_LCDWIDTH] |= _BV((y%8));
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else
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buffer[x+ (y/8)*SSD1306_LCDWIDTH] &= ~_BV((y%8));
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}
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void Adafruit_SSD1306::begin(uint8_t vccstate) {
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#ifdef SSD1306_128_64
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this->WIDTH = 128;
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this->HEIGHT = 64;
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#endif
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#ifdef SSD1306_128_32
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this->WIDTH = 128;
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this->HEIGHT = 32;
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#endif
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// set pin directions
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pinMode(sid, OUTPUT);
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pinMode(sclk, OUTPUT);
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pinMode(dc, OUTPUT);
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pinMode(rst, OUTPUT);
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pinMode(cs, OUTPUT);
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clkport = portOutputRegister(digitalPinToPort(sclk));
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clkpinmask = digitalPinToBitMask(sclk);
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mosiport = portOutputRegister(digitalPinToPort(sid));
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mosipinmask = digitalPinToBitMask(sid);
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csport = portOutputRegister(digitalPinToPort(cs));
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cspinmask = digitalPinToBitMask(cs);
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dcport = portOutputRegister(digitalPinToPort(dc));
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dcpinmask = digitalPinToBitMask(dc);
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digitalWrite(rst, HIGH);
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// VDD (3.3V) goes high at start, lets just chill for a ms
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delay(1);
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// bring0xset low
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digitalWrite(rst, LOW);
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// wait 10ms
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delay(10);
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// bring out of reset
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digitalWrite(rst, HIGH);
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// turn on VCC (9V?)
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#if defined SSD1306_128_32
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// Init sequence for 128x32 OLED module
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ssd1306_command(SSD1306_DISPLAYOFF); // 0xAE
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ssd1306_command(SSD1306_SETDISPLAYCLOCKDIV); // 0xD5
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ssd1306_command(0x80); // the suggested ratio 0x80
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ssd1306_command(SSD1306_SETMULTIPLEX); // 0xA8
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ssd1306_command(0x1F);
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ssd1306_command(SSD1306_SETDISPLAYOFFSET); // 0xD3
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ssd1306_command(0x0); // no offset
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ssd1306_command(SSD1306_SETSTARTLINE | 0x0); // line #0
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ssd1306_command(SSD1306_CHARGEPUMP); // 0x8D
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if (vccstate == SSD1306_EXTERNALVCC)
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{ ssd1306_command(0x10); }
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else
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{ ssd1306_command(0x14); }
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ssd1306_command(SSD1306_MEMORYMODE); // 0x20
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ssd1306_command(0x00); // 0x0 act like ks0108
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ssd1306_command(SSD1306_SEGREMAP | 0x1);
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ssd1306_command(SSD1306_COMSCANDEC);
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ssd1306_command(SSD1306_SETCOMPINS); // 0xDA
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ssd1306_command(0x02);
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ssd1306_command(SSD1306_SETCONTRAST); // 0x81
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ssd1306_command(0x8F);
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ssd1306_command(SSD1306_SETPRECHARGE); // 0xd9
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if (vccstate == SSD1306_EXTERNALVCC)
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{ ssd1306_command(0x22); }
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else
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{ ssd1306_command(0xF1); }
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ssd1306_command(SSD1306_SETVCOMDETECT); // 0xDB
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ssd1306_command(0x40);
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ssd1306_command(SSD1306_DISPLAYALLON_RESUME); // 0xA4
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ssd1306_command(SSD1306_NORMALDISPLAY); // 0xA6
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#endif
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#if defined SSD1306_128_64
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// Init sequence for 128x64 OLED module
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ssd1306_command(SSD1306_DISPLAYOFF); // 0xAE
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ssd1306_command(SSD1306_SETDISPLAYCLOCKDIV); // 0xD5
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ssd1306_command(0x80); // the suggested ratio 0x80
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ssd1306_command(SSD1306_SETMULTIPLEX); // 0xA8
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ssd1306_command(0x3F);
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ssd1306_command(SSD1306_SETDISPLAYOFFSET); // 0xD3
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ssd1306_command(0x0); // no offset
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ssd1306_command(SSD1306_SETSTARTLINE | 0x0); // line #0
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ssd1306_command(SSD1306_CHARGEPUMP); // 0x8D
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if (vccstate == SSD1306_EXTERNALVCC)
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{ ssd1306_command(0x10); }
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else
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{ ssd1306_command(0x14); }
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ssd1306_command(SSD1306_MEMORYMODE); // 0x20
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ssd1306_command(0x00); // 0x0 act like ks0108
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ssd1306_command(SSD1306_SEGREMAP | 0x1);
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ssd1306_command(SSD1306_COMSCANDEC);
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ssd1306_command(SSD1306_SETCOMPINS); // 0xDA
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ssd1306_command(0x12);
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ssd1306_command(SSD1306_SETCONTRAST); // 0x81
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if (vccstate == SSD1306_EXTERNALVCC)
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{ ssd1306_command(0x9F); }
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else
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{ ssd1306_command(0xCF); }
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ssd1306_command(SSD1306_SETPRECHARGE); // 0xd9
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if (vccstate == SSD1306_EXTERNALVCC)
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{ ssd1306_command(0x22); }
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else
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{ ssd1306_command(0xF1); }
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ssd1306_command(SSD1306_SETVCOMDETECT); // 0xDB
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ssd1306_command(0x40);
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ssd1306_command(SSD1306_DISPLAYALLON_RESUME); // 0xA4
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ssd1306_command(SSD1306_NORMALDISPLAY); // 0xA6
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#endif
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ssd1306_command(SSD1306_DISPLAYON);//--turn on oled panel
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}
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void Adafruit_SSD1306::invertDisplay(uint8_t i) {
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if (i) {
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ssd1306_command(SSD1306_INVERTDISPLAY);
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} else {
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ssd1306_command(SSD1306_NORMALDISPLAY);
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}
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}
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void Adafruit_SSD1306::ssd1306_command(uint8_t c) {
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//digitalWrite(cs, HIGH);
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*csport |= cspinmask;
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//digitalWrite(dc, LOW);
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*dcport &= ~dcpinmask;
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//digitalWrite(cs, LOW);
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*csport &= ~cspinmask;
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fastSPIwrite(c);
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//digitalWrite(cs, HIGH);
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*csport |= cspinmask;
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}
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void Adafruit_SSD1306::ssd1306_data(uint8_t c) {
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//digitalWrite(cs, HIGH);
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*csport |= cspinmask;
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//digitalWrite(dc, HIGH);
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*dcport |= dcpinmask;
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//digitalWrite(cs, LOW);
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*csport &= ~cspinmask;
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fastSPIwrite(c);
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//digitalWrite(cs, HIGH);
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*csport |= cspinmask;
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}
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void Adafruit_SSD1306::display(void) {
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ssd1306_command(SSD1306_SETLOWCOLUMN | 0x0); // low col = 0
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ssd1306_command(SSD1306_SETHIGHCOLUMN | 0x0); // hi col = 0
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ssd1306_command(SSD1306_SETSTARTLINE | 0x0); // line #0
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*csport |= cspinmask;
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*dcport |= dcpinmask;
|
|
*csport &= ~cspinmask;
|
|
|
|
for (uint16_t i=0; i<(SSD1306_LCDWIDTH*SSD1306_LCDHEIGHT/8); i++) {
|
|
fastSPIwrite(buffer[i]);
|
|
//ssd1306_data(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++) {
|
|
//ssd1306_data(0);
|
|
fastSPIwrite(0);
|
|
}
|
|
}
|
|
*csport |= cspinmask;
|
|
}
|
|
|
|
// clear everything
|
|
void Adafruit_SSD1306::clearDisplay(void) {
|
|
memset(buffer, 0, (SSD1306_LCDWIDTH*SSD1306_LCDHEIGHT/8));
|
|
}
|
|
|
|
|
|
inline void Adafruit_SSD1306::fastSPIwrite(uint8_t d) {
|
|
|
|
for(uint8_t bit = 0x80; bit; bit >>= 1) {
|
|
*clkport &= ~clkpinmask;
|
|
if(d & bit) *mosiport |= mosipinmask;
|
|
else *mosiport &= ~mosipinmask;
|
|
*clkport |= clkpinmask;
|
|
}
|
|
//*csport |= cspinmask;
|
|
}
|
|
|
|
inline void Adafruit_SSD1306::slowSPIwrite(uint8_t d) {
|
|
for (int8_t i=7; i>=0; i--) {
|
|
digitalWrite(sclk, LOW);
|
|
if (d & _BV(i)) {
|
|
digitalWrite(sid, HIGH);
|
|
} else {
|
|
digitalWrite(sid, LOW);
|
|
}
|
|
digitalWrite(sclk, HIGH);
|
|
}
|
|
}
|
|
|