79 lines
1.9 KiB
C
79 lines
1.9 KiB
C
/**
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* SSD1306xLED - Drivers for SSD1306 controlled dot matrix OLED/PLED 128x64 displays
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*
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* @created: 2014-08-12
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* @author: Neven Boyanov
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*
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* This is part of the Tinusaur/SSD1306xLED project.
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*
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* Copyright (c) 2016 Neven Boyanov, Tinusaur Team. All Rights Reserved.
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* Distributed as open source software under MIT License, see LICENSE.txt file.
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* Please, as a favor, retain the link http://tinusaur.org to The Tinusaur Project.
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*
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* Source code available at: https://bitbucket.org/tinusaur/ssd1306xled
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*
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*/
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// ============================================================================
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#include <stdlib.h>
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#include <avr/io.h>
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#include <avr/pgmspace.h>
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#include "ssd1306xled.h"
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#include "ssd1306xled8x16.h"
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#include "font8x16.h"
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// ----------------------------------------------------------------------------
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/*
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// NOTE: DOES NOT WORK
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void ssd1306_char_font8x16(char ch) {
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uint8_t c = ch - 32;
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ssd1306_send_data_start();
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for (uint8_t i = 0; i < 8; i++)
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{
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ssd1306_send_byte(pgm_read_byte(&ssd1306xled_font8x16[c * 16 + i]));
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ssd1306_send_byte(pgm_read_byte(&ssd1306xled_font8x16[c * 16 + i + 8]));
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}
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ssd1306_send_data_stop();
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}
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// NOTE: DOES NOT WORK
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void ssd1306_string_font8x16(char *s) {
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while (*s) {
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ssd1306_char_font8x16(*s++);
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}
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}
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*/
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void ssd1306_string_font8x16xy(uint8_t x, uint8_t y, const char s[]) {
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uint8_t ch, j = 0;
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while (s[j] != '\0') {
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ch = s[j] - 32;
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if (x > 120) {
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x = 0;
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y++;
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}
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ssd1306_setpos(x, y);
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ssd1306_send_data_start();
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for (uint8_t i = 0; i < 8; i++) {
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ssd1306_send_byte(pgm_read_byte(&ssd1306xled_font8x16[ch * 16 + i]));
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}
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ssd1306_send_data_stop();
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ssd1306_setpos(x, y + 1);
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ssd1306_send_data_start();
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for (uint8_t i = 0; i < 8; i++) {
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ssd1306_send_byte(pgm_read_byte(&ssd1306xled_font8x16[ch * 16 + i + 8]));
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}
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ssd1306_send_data_stop();
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x += 8;
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j++;
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}
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}
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// ============================================================================
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