* Add stm32f072 base ck4x4 to handwired * add prints * Save these tries * Save changes again * Working hadron oled * OLEd working but ws2812b still iffy: * save another try * Encoder feature + OLED * RTC code * Implement clock setting mode * Whitespace * Encoder hooked up to working LED PWM code * Add missing files * eeprom changes * Save changes * Move i2c master * Move satisfaction75 under cannonkeys * Set proper default folder * Revert some core changes * Undo paved iris changes * Reorganize code for maintainability and prep for new features * Add starting code for clock OLED mode * Clock set mode finished * Add custom encoder modes * Actually add VIA keymap * Gate to only 072 * fix gate for only 072 * Update header guards and includes * Update i2c selection strategy * Update board.c to handle software reset to DFU
		
			
				
	
	
		
			692 lines
		
	
	
		
			27 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			692 lines
		
	
	
		
			27 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| /* Jim Lindblom @ SparkFun Electronics
 | |
|  * October 26, 2014
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|  * https://github.com/sparkfun/Micro_OLED_Breakout/tree/master/Firmware/Arduino/libraries/SFE_MicroOLED
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|  *
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|  * Modified by:
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|  * Emil Varughese @ Edwin Robotics Pvt. Ltd.
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|  * July 27, 2015
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|  * https://github.com/emil01/SparkFun_Micro_OLED_Arduino_Library/
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|  *
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|  * This code was heavily based around the MicroView library, written by GeekAmmo
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|  * (https://github.com/geekammo/MicroView-Arduino-Library).
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|  *
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|  * Adapted for QMK by:
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|  * Jack Humbert <jack.humb@gmail.com>
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|  * October 11, 2018
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|  *
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|  * This program is free software: you can redistribute it and/or modify
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|  * it under the terms of the GNU General Public License as published by
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|  * the Free Software Foundation, either version 3 of the License, or
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|  * (at your option) any later version.
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|  *
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|  * This program is distributed in the hope that it will be useful,
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|  * but WITHOUT ANY WARRANTY; without even the implied warranty of
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|  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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|  * GNU General Public License for more details.
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|  *
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|  * You should have received a copy of the GNU General Public License
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|  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
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|  */
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| #include "micro_oled.h"
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| #include <print.h>
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| #include <stdlib.h>
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| #include "util/font5x7.h"
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| #include "util/font8x16.h"
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| #include "string.h"
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| 
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| #define TOTALFONTS 2
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| const unsigned char * fonts_pointer[]= { font5x7, font8x16 };
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| 
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| uint8_t foreColor,drawMode,fontWidth, fontHeight, fontType, fontStartChar, fontTotalChar, cursorX, cursorY;
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| uint16_t fontMapWidth;
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| 
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| #define _BV(x) (1 << (x))
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| #define swap(a, b) { uint8_t t = a; a = b; b = t; }
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| 
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| uint8_t micro_oled_transfer_buffer[20];
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| static uint8_t micro_oled_screen_current[LCDWIDTH*LCDWIDTH/8] = { 0 };
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| 
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| /* LCD Memory organised in 64 horizontal pixel and 6 rows of byte
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|    B  B .............B  -----
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|    y  y .............y        \
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|    t  t .............t         \
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|    e  e .............e          \
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|    0  1 .............63          \
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|                                   \
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|    D0 D0.............D0            \
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|    D1 D1.............D1            / ROW 0
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|    D2 D2.............D2           /
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|    D3 D3.............D3          /
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|    D4 D4.............D4         /
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|    D5 D5.............D5        /
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|    D6 D6.............D6       /
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|    D7 D7.............D7  ----
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|   */
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| 
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| #if LCDWIDTH == 64
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|   #if LCDWIDTH == 48
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| static uint8_t micro_oled_screen_buffer[] = {
 | |
| // QMK Logo - generated at http://www.majer.ch/lcd/adf_bitmap.php
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| //64x48 image
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| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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| 0x00, 0xF0, 0xF0, 0x00, 0x00, 0x00, 0xF0, 0xF0, 0x00, 0x00,
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| 0x00, 0xF0, 0xF0, 0x00, 0x00, 0x00, 0xF0, 0xF0, 0x00, 0x00,
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| 0x00, 0xF0, 0xF0, 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, 0x00, 0x00, 0x00, 0x00,
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| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x60, 0x60, 0x60, 0x60,
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| 0xF8, 0xFE, 0xFE, 0xFF, 0xFF, 0xFF, 0x1F, 0x1F, 0xFF, 0xFF,
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| 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x1F, 0x1F, 0xFF, 0xFF, 0xFF,
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| 0xFF, 0xFF, 0xFF, 0xFF, 0x1F, 0x1F, 0xFF, 0xFF, 0xFF, 0xFE,
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| 0xFE, 0xF8, 0x60, 0x60, 0x60, 0x60, 0x00, 0x00, 0x00, 0x00,
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| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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| 0x8C, 0x8C, 0x8C, 0x8C, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
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| 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x00,
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| 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x00,
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| 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x8C, 0x8C, 0x8C, 0x8C,
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| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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| 0x00, 0x00, 0x00, 0x00, 0x31, 0x31, 0x31, 0x31, 0xFF, 0xFF,
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| 0xFF, 0xFF, 0xFF, 0xFF, 0xFC, 0xF8, 0xF1, 0xE3, 0xE7, 0xCF,
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| 0xCF, 0xCF, 0xCF, 0x00, 0x00, 0xCF, 0xCF, 0xCF, 0xC7, 0xE7,
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| 0xE3, 0xF1, 0xF8, 0xFC, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
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| 0x31, 0x31, 0x31, 0x31, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x06, 0x06,
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| 0x06, 0x06, 0x1F, 0x7F, 0x7F, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
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| 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xF8, 0xF8, 0xFF,
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| 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
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| 0xFF, 0x7F, 0x7F, 0x1F, 0x06, 0x06, 0x06, 0x06, 0x00, 0x00,
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| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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| 0x00, 0x0F, 0x0F, 0x00, 0x00, 0x00, 0x0F, 0x0F, 0x00, 0x00,
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| 0x00, 0x0F, 0x0F, 0x00, 0x00, 0x00, 0x0F, 0x0F, 0x00, 0x00,
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| 0x00, 0x0F, 0x0F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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| 0x00, 0x00, 0x00, 0x00
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| };
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|   #endif
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| #elif LCDWIDTH == 128
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|   #if LCDHEIGHT == 32
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|      static uint8_t micro_oled_screen_buffer[LCDWIDTH*LCDWIDTH/8] = {
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| //128x32 qmk image
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| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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| 0x00, 0x80, 0xC0, 0xE0, 0xE0, 0xFC, 0xFC, 0xE0, 0xFC, 0xFC,
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| 0xE0, 0xF0, 0xFC, 0xE0, 0xE0, 0xFC, 0xE0, 0xE0, 0xFC, 0xFC,
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| 0xE0, 0xE0, 0xC0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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| 0x00, 0x00, 0x00, 0xF0, 0x10, 0x10, 0x30, 0xE0, 0x00, 0x00,
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| 0x80, 0x80, 0x80, 0x80, 0x80, 0x00, 0x00, 0x80, 0x00, 0x00,
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| 0x00, 0x80, 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x80, 0x80,
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| 0x00, 0x80, 0x00, 0x00, 0x00, 0x80, 0x80, 0x80, 0x00, 0x00,
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| 0x80, 0x80, 0x00, 0x80, 0x00, 0x00, 0x00, 0x80, 0x80, 0x80,
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| 0x80, 0xF0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x12, 0xB2, 0xB2, 0xFF,
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| 0xFF, 0xFF, 0xFF, 0xFF, 0x01, 0x03, 0xFF, 0xFF, 0xFF, 0x03,
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| 0x01, 0xFF, 0xFF, 0xFF, 0xFF, 0x01, 0x03, 0xFF, 0xFF, 0xFF,
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| 0xFF, 0xB7, 0xB2, 0xB2, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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| 0x00, 0x1F, 0x02, 0x02, 0x03, 0x01, 0x00, 0x06, 0x1F, 0x10,
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| 0x10, 0x10, 0x1F, 0x06, 0x00, 0x03, 0x1E, 0x18, 0x0F, 0x01,
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| 0x0F, 0x18, 0x1E, 0x01, 0x00, 0x0F, 0x1F, 0x12, 0x02, 0x12,
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| 0x13, 0x00, 0x00, 0x1F, 0x00, 0x00, 0x00, 0x0E, 0x1F, 0x12,
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| 0x02, 0x12, 0x13, 0x00, 0x00, 0x1F, 0x10, 0x10, 0x10, 0x1F,
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| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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| 0x00, 0x00, 0x00, 0x00, 0x48, 0x4D, 0x4D, 0xFF, 0xFF, 0xFF,
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| 0xFF, 0xFF, 0xFE, 0xF8, 0xF9, 0xF3, 0xF3, 0xC0, 0x80, 0xF3,
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| 0xF3, 0xF3, 0xF9, 0xFC, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xED,
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| 0x4D, 0x4D, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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| 0x00, 0xFE, 0x20, 0x10, 0x10, 0xE0, 0xC0, 0x00, 0x70, 0xC0,
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| 0x00, 0x80, 0x70, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF0, 0x0C,
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| 0x04, 0x04, 0x04, 0x04, 0x1C, 0xF0, 0x00, 0x00, 0xFC, 0x0C,
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| 0x38, 0xE0, 0x00, 0x00, 0xC0, 0x38, 0x0C, 0xFC, 0x00, 0x00,
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| 0xFC, 0xFC, 0x60, 0x90, 0x0C, 0x04, 0x00, 0x00, 0x00, 0x00,
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| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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| 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x03, 0x07, 0x07, 0x3F,
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| 0x3F, 0x07, 0x3F, 0x3F, 0x07, 0x0F, 0x3F, 0x07, 0x07, 0x3F,
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| 0x07, 0x07, 0x3F, 0x3F, 0x07, 0x07, 0x03, 0x00, 0x00, 0x00,
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| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x07,
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| 0x06, 0x04, 0x04, 0x07, 0x01, 0x00, 0x00, 0x13, 0x1E, 0x03,
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| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x06, 0x04, 0x04,
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| 0x04, 0x04, 0x07, 0x0D, 0x08, 0x00, 0x07, 0x00, 0x00, 0x01,
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| 0x07, 0x07, 0x00, 0x00, 0x00, 0x07, 0x00, 0x00, 0x07, 0x07,
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| 0x00, 0x01, 0x03, 0x06, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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| 0x00, 0x00
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|     };
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|   #elif LCDHEIGHT == 64
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|     static uint8_t micro_oled_screen_buffer[LCDWIDTH*LCDWIDTH/8] = {
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| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xC0, 0xC0,
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| 0x00, 0x00, 0xC0, 0xC0, 0x00, 0x00, 0xC0, 0xC0, 0x00, 0x00,
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| 0xC0, 0xC0, 0x00, 0x00, 0xC0, 0xC0, 0x00, 0x00, 0x00, 0x00,
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| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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| 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, 0x00, 0x00, 0x00, 0x00,
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| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 | |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 | |
| 0xC0, 0xC0, 0xC0, 0xC0, 0xF8, 0xFC, 0xFC, 0xFE, 0xFE, 0xFF,
 | |
| 0x7F, 0x7E, 0xFE, 0xFF, 0xFF, 0xFE, 0xFE, 0x7F, 0x7F, 0xFE,
 | |
| 0xFE, 0xFF, 0xFF, 0xFE, 0x7E, 0x7F, 0xFF, 0xFE, 0xFE, 0xFC,
 | |
| 0xFC, 0xF8, 0xC0, 0xC0, 0xC0, 0xC0, 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, 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,
 | |
| 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, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 | |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 | |
| 0x00, 0x88, 0x88, 0x88, 0xDD, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
 | |
| 0xFF, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x00,
 | |
| 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x00, 0xFF, 0xFF, 0xFF,
 | |
| 0xFF, 0xFF, 0xFF, 0xDD, 0x88, 0x88, 0x88, 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, 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, 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, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 | |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 | |
| 0x00, 0x00, 0x99, 0x99, 0x99, 0x99, 0xFF, 0xFF, 0xFF, 0xFF,
 | |
| 0xFF, 0xFF, 0xFE, 0xF8, 0xF0, 0xF3, 0xF3, 0xE7, 0xE7, 0x00,
 | |
| 0x00, 0xE7, 0xE7, 0xF3, 0xF3, 0xF0, 0xF8, 0xFE, 0xFF, 0xFF,
 | |
| 0xFF, 0xFF, 0xFF, 0xFF, 0x99, 0x99, 0x99, 0x99, 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,
 | |
| 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, 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, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 | |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 | |
| 0x00, 0x00, 0x00, 0x01, 0x01, 0x01, 0x01, 0x0F, 0x1F, 0x3F,
 | |
| 0x3F, 0x3F, 0xFF, 0xFF, 0x3F, 0x3F, 0xFF, 0xFF, 0x3F, 0x3F,
 | |
| 0xFF, 0xFF, 0x3F, 0x3F, 0xFF, 0xFF, 0x3F, 0x3F, 0xFF, 0xFF,
 | |
| 0x3F, 0x3F, 0x3F, 0x1F, 0x0F, 0x01, 0x01, 0x01, 0x01, 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, 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, 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, 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, 0x03, 0x01, 0x00, 0x00, 0x03, 0x01, 0x00,
 | |
| 0x80, 0x03, 0x03, 0x00, 0x00, 0x01, 0x03, 0x00, 0x80, 0x01,
 | |
| 0x03, 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, 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, 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, 0xFF, 0x11, 0x11, 0x11, 0x0E, 0x00, 0x70,
 | |
| 0x88, 0x04, 0x04, 0x04, 0xF8, 0x00, 0x00, 0x3C, 0xE0, 0xC0,
 | |
| 0x38, 0x1C, 0xE0, 0x80, 0x70, 0x0C, 0x00, 0xF8, 0xAC, 0x24,
 | |
| 0x24, 0x3C, 0x30, 0x00, 0x00, 0xFC, 0x0C, 0x04, 0x00, 0xF8,
 | |
| 0xAC, 0x24, 0x24, 0x2C, 0x30, 0x00, 0x70, 0xDC, 0x04, 0x04,
 | |
| 0x88, 0xFF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFF,
 | |
| 0x8C, 0x04, 0x04, 0xF8, 0x00, 0x04, 0x3C, 0xE0, 0x80, 0xF0,
 | |
| 0x1C, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFE, 0x83, 0x01, 0x01,
 | |
| 0x01, 0x81, 0xFE, 0x3C, 0x00, 0x00, 0xFF, 0x03, 0x0E, 0x70,
 | |
| 0xC0, 0xE0, 0x38, 0x06, 0x03, 0xFF, 0x00, 0x00, 0xFF, 0x18,
 | |
| 0x38, 0x66, 0xC3, 0x01, 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, 0x00, 0x00, 0x00, 0x00,
 | |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 | |
| 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00,
 | |
| 0x00, 0x00, 0x01, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x01,
 | |
| 0x01, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x01,
 | |
| 0x01, 0x01, 0x01, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
 | |
| 0x00, 0x01, 0x01, 0x01, 0x01, 0x00, 0x00, 0x00, 0x01, 0x01,
 | |
| 0x01, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 | |
| 0x01, 0x01, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x04, 0x03,
 | |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
 | |
| 0x01, 0x01, 0x01, 0x01, 0x03, 0x02, 0x00, 0x01, 0x00, 0x00,
 | |
| 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x01,
 | |
| 0x00, 0x00, 0x00, 0x00, 0x01, 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, 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, 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, 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, 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, 0x00, 0x00, 0x00, 0x00
 | |
|     };
 | |
| //TODO: generate bitmap of QMK logo here
 | |
|   #endif
 | |
| #else
 | |
| //catchall for custom screen szies
 | |
|     static uint8_t micro_oled_screen_buffer[LCDWIDTH*LCDWIDTH/8] = {0};
 | |
| #endif
 | |
| 
 | |
| 
 | |
| 
 | |
| void micro_oled_init(void) {
 | |
|   i2c_init();
 | |
|   i2c_start(I2C_ADDRESS_SA0_1);
 | |
| 
 | |
|   // Display Init sequence for 64x48 OLED module
 | |
|   send_command(DISPLAYOFF);      // 0xAE
 | |
| 
 | |
|   send_command(SETDISPLAYCLOCKDIV);  // 0xD5
 | |
|   send_command(0x80);          // the suggested ratio 0x80
 | |
| 
 | |
|   send_command(SETMULTIPLEX);      // 0xA8
 | |
|   send_command(LCDHEIGHT - 1);
 | |
| 
 | |
|   send_command(SETDISPLAYOFFSET);    // 0xD3
 | |
|   send_command(0x00);         // no offset
 | |
| 
 | |
|   send_command(SETSTARTLINE | 0x00);  // line #0
 | |
| 
 | |
|   send_command(CHARGEPUMP);      // enable charge pump
 | |
|   send_command(0x14);
 | |
| 
 | |
|   send_command(NORMALDISPLAY);     // 0xA6
 | |
|   send_command(DISPLAYALLONRESUME);  // 0xA4
 | |
| 
 | |
| //display at regular orientation
 | |
|   send_command(SEGREMAP | 0x1);
 | |
|   send_command(COMSCANDEC);
 | |
| 
 | |
| //rotate display 180
 | |
| #ifdef micro_oled_rotate_180
 | |
|   send_command(SEGREMAP);
 | |
|   send_command(COMSCANINC);
 | |
| #endif
 | |
| 
 | |
|   send_command(MEMORYMODE);
 | |
|   send_command(0x10);
 | |
| 
 | |
|   send_command(SETCOMPINS);      // 0xDA
 | |
| if (LCDHEIGHT > 32) {
 | |
|   send_command(0x12);
 | |
| } else {
 | |
|   send_command(0x02);
 | |
| }
 | |
|   send_command(SETCONTRAST);     // 0x81
 | |
|   send_command(0x8F);
 | |
| 
 | |
|   send_command(SETPRECHARGE);      // 0xd9
 | |
|   send_command(0xF1);
 | |
| 
 | |
|   send_command(SETVCOMDESELECT);     // 0xDB
 | |
|   send_command(0x40);
 | |
| 
 | |
|   send_command(DISPLAYON);       //--turn on oled panel
 | |
|   clear_screen();           // Erase hardware memory inside the OLED controller to avoid random data in memory.
 | |
|   send_buffer();
 | |
| }
 | |
| 
 | |
| void send_command(uint8_t command) {
 | |
|   micro_oled_transfer_buffer[0] = I2C_COMMAND;
 | |
|   micro_oled_transfer_buffer[1] = command;
 | |
|   i2c_transmit(I2C_ADDRESS_SA0_1 << 1, micro_oled_transfer_buffer, 2, 100);
 | |
| }
 | |
| 
 | |
| void send_data(uint8_t data) {
 | |
|   micro_oled_transfer_buffer[0] = I2C_DATA;
 | |
|   micro_oled_transfer_buffer[1] = data;
 | |
|   i2c_transmit(I2C_ADDRESS_SA0_1 << 1, micro_oled_transfer_buffer, 2, 100);
 | |
| }
 | |
| 
 | |
| /** \brief Set SSD1306 page address.
 | |
|     Send page address command and address to the SSD1306 OLED controller.
 | |
| */
 | |
| void set_page_address(uint8_t address) {
 | |
|   address = (0xB0 | address);
 | |
|   send_command(address);
 | |
| }
 | |
| 
 | |
| /** \brief Set SSD1306 column address.
 | |
|     Send column address command and address to the SSD1306 OLED controller.
 | |
| */
 | |
| void set_column_address(uint8_t address) {
 | |
|   send_command( ( 0x10 | (address >> 4) ) + ((128 - LCDWIDTH) >> 8) );
 | |
|   send_command( 0x0F & address );
 | |
| }
 | |
| 
 | |
| /** \brief Clear SSD1306's memory.
 | |
|     To clear GDRAM inside the LCD controller.
 | |
| */
 | |
| void clear_screen(void) {
 | |
|   for (int i=0;i<8; i++) {
 | |
|     set_page_address(i);
 | |
|     set_column_address(0);
 | |
|     for (int j=0; j<0x80; j++) {
 | |
|       send_data(0);
 | |
|     }
 | |
|   }
 | |
| }
 | |
| 
 | |
| /** \brief Clear SSD1306's memory.
 | |
|     To clear GDRAM inside the LCD controller.
 | |
| */
 | |
| void clear_buffer(void) {
 | |
| //384
 | |
|   memset(micro_oled_screen_buffer, 0, LCDWIDTH*LCDWIDTH/8);
 | |
| }
 | |
| 
 | |
| /** \brief Invert display.
 | |
|     The PIXEL_ON color of the display will turn to PIXEL_OFF and the PIXEL_OFF will turn to PIXEL_ON.
 | |
| */
 | |
| void invert_screen(bool invert) {
 | |
|   if (invert) {
 | |
|     send_command(INVERTDISPLAY);
 | |
|   } else {
 | |
|     send_command(NORMALDISPLAY);
 | |
|   }
 | |
| }
 | |
| 
 | |
| /** \brief Set contrast.
 | |
|     OLED contract value from 0 to 255. Note: Contrast level is not very obvious.
 | |
| */
 | |
| void set_contrast(uint8_t contrast) {
 | |
|   send_command(SETCONTRAST);     // 0x81
 | |
|   send_command(contrast);
 | |
| }
 | |
| 
 | |
| /** \brief Transfer display buffer.
 | |
|   Sends the updated buffer to the controller - the current status is checked before to save i2c exectution time
 | |
| */
 | |
| void send_buffer(void) {
 | |
|   uint8_t i, j;
 | |
| 
 | |
|   uint8_t page_addr = 0xFF;
 | |
|   for (i = 0; i < LCDHEIGHT/8; i++) {
 | |
|     uint8_t col_addr = 0xFF;
 | |
|     for (j = 0; j < LCDWIDTH; j++) {
 | |
|       if (micro_oled_screen_buffer[i*LCDWIDTH+j] != micro_oled_screen_current[i*LCDWIDTH+j]) {
 | |
|         if (page_addr != i) {
 | |
|           set_page_address(i);
 | |
|         }
 | |
|         if (col_addr != j) {
 | |
|           set_column_address(j);
 | |
|         }
 | |
|         send_data(micro_oled_screen_buffer[i*LCDWIDTH+j]);
 | |
|         micro_oled_screen_current[i*LCDWIDTH+j] = micro_oled_screen_buffer[i*LCDWIDTH+j];
 | |
|         col_addr = j + 1;
 | |
|       }
 | |
|     }
 | |
|   }
 | |
| }
 | |
| 
 | |
| /** \brief Draw pixel with color and mode.
 | |
|   Draw color pixel in the screen buffer's x,y position with NORM or XOR draw mode.
 | |
| */
 | |
| void draw_pixel(uint8_t x, uint8_t y, uint8_t color, uint8_t mode) {
 | |
|   if ((x<0) ||  (x>=LCDWIDTH) || (y<0) || (y>=LCDHEIGHT))
 | |
|     return;
 | |
| 
 | |
|   if (mode == XOR) {
 | |
|     if (color == PIXEL_ON)
 | |
|       micro_oled_screen_buffer[x + (y/8)*LCDWIDTH] ^= _BV((y%8));
 | |
|   } else {
 | |
|     if (color == PIXEL_ON)
 | |
|       micro_oled_screen_buffer[x + (y/8)*LCDWIDTH] |= _BV((y%8));
 | |
|     else
 | |
|       micro_oled_screen_buffer[x + (y/8)*LCDWIDTH] &= ~_BV((y%8));
 | |
|   }
 | |
| }
 | |
| 
 | |
| /** \brief Draw line with color and mode.
 | |
| Draw line using color and mode from x0,y0 to x1,y1 of the screen buffer.
 | |
| */
 | |
| void draw_line(uint8_t x0, uint8_t y0, uint8_t x1, uint8_t y1, uint8_t color, uint8_t mode) {
 | |
|   uint8_t steep = abs(y1 - y0) > abs(x1 - x0);
 | |
|   if (steep) {
 | |
|     swap(x0, y0);
 | |
|     swap(x1, y1);
 | |
|   }
 | |
| 
 | |
|   if (x0 > x1) {
 | |
|     swap(x0, x1);
 | |
|     swap(y0, y1);
 | |
|   }
 | |
| 
 | |
|   uint8_t dx, dy;
 | |
|   dx = x1 - x0;
 | |
|   dy = abs(y1 - y0);
 | |
| 
 | |
|   int8_t err = dx / 2;
 | |
|   int8_t ystep;
 | |
| 
 | |
|   if (y0 < y1) {
 | |
|     ystep = 1;
 | |
|   } else {
 | |
|     ystep = -1;}
 | |
| 
 | |
|   for (; x0<x1; x0++) {
 | |
|     if (steep) {
 | |
|       draw_pixel(y0, x0, color, mode);
 | |
|     } else {
 | |
|       draw_pixel(x0, y0, color, mode);
 | |
|     }
 | |
|     err -= dy;
 | |
|     if (err < 0) {
 | |
|       y0 += ystep;
 | |
|       err += dx;
 | |
|     }
 | |
|   }
 | |
| }
 | |
| 
 | |
| /** \brief Draw horizontal line with color and mode.
 | |
| Draw horizontal line using color and mode from x,y to x+width,y of the screen buffer.
 | |
| */
 | |
| void draw_line_hori(uint8_t x, uint8_t y, uint8_t width, uint8_t color, uint8_t mode) {
 | |
|   draw_line(x,y,x+width,y,color,mode);
 | |
| }
 | |
| 
 | |
| /** \brief Draw vertical line.
 | |
| Draw vertical line using current fore color and current draw mode from x,y to x,y+height of the screen buffer.
 | |
| */
 | |
| void draw_line_vert(uint8_t x, uint8_t y, uint8_t height, bool color, uint8_t mode) {
 | |
|   draw_line(x,y,x,y+height,color,mode);
 | |
| }
 | |
| 
 | |
| /** \brief Draw rectangle with color and mode.
 | |
| Draw rectangle using color and mode from x,y to x+width,y+height of the screen buffer.
 | |
| */
 | |
| void draw_rect(uint8_t x, uint8_t y, uint8_t width, uint8_t height, uint8_t color, uint8_t mode) {
 | |
|   uint8_t tempHeight;
 | |
| 
 | |
|   draw_line_hori(x,y, width, color, mode);
 | |
|   draw_line_hori(x,y+height-1, width, color, mode);
 | |
| 
 | |
|   tempHeight=height-2;
 | |
| 
 | |
|   // skip drawing vertical lines to avoid overlapping of pixel that will
 | |
|   // affect XOR plot if no pixel in between horizontal lines
 | |
|   if (tempHeight<1) return;
 | |
| 
 | |
|   draw_line_vert(x,y+1, tempHeight, color, mode);
 | |
|   draw_line_vert(x+width-1, y+1, tempHeight, color, mode);
 | |
| }
 | |
| 
 | |
| /** \brief Draw rectangle with color and mode.
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| Draw rectangle using color and mode from x,y to x+width,y+height of the screen buffer.
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| */
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| void draw_rect_soft(uint8_t x, uint8_t y, uint8_t width, uint8_t height, uint8_t color, uint8_t mode) {
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|   uint8_t tempHeight;
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| 
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|   draw_line_hori(x+1,y, width-2, color, mode);
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|   draw_line_hori(x+1,y+height-1, width-2, color, mode);
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| 
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|   tempHeight=height-2;
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| 
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|   // skip drawing vertical lines to avoid overlapping of pixel that will
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|   // affect XOR plot if no pixel in between horizontal lines
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|   if (tempHeight<1) return;
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| 
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|   draw_line_vert(x,y+1, tempHeight, color, mode);
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|   draw_line_vert(x+width-1, y+1, tempHeight, color, mode);
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| }
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| 
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| /** \brief Draw filled rectangle with color and mode.
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| Draw filled rectangle using color and mode from x,y to x+width,y+height of the screen buffer.
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| */
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| void draw_rect_filled(uint8_t x, uint8_t y, uint8_t width, uint8_t height, uint8_t color, uint8_t mode) {
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|   // TODO - need to optimise the memory map draw so that this function will not call pixel one by one
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|   for (int i=x; i<x+width;i++) {
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|     draw_line_vert(i,y, height, color, mode);
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|   }
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| }
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| 
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| /** \brief Draw filled rectangle with color and mode.
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| Draw filled rectangle using color and mode from x,y to x+width,y+height of the screen buffer.
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| */
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| void draw_rect_filled_soft(uint8_t x, uint8_t y, uint8_t width, uint8_t height, uint8_t color, uint8_t mode) {
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|   // TODO - need to optimise the memory map draw so that this function will not call pixel one by one
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|   for (int i=x; i<x+width;i++) {
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|     if (i == x || i == (x + width - 1))
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|       draw_line_vert(i, y+1, height-2, color, mode);
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|     else
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|       draw_line_vert(i, y, height, color, mode);
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|   }
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| }
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| 
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| /** \brief Draw character with color and mode.
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|   Draw character c using color and draw mode at x,y.
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| */
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| void draw_char(uint8_t x, uint8_t y, uint8_t c, uint8_t color, uint8_t mode, uint8_t font) {
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|   // TODO - New routine to take font of any height, at the moment limited to font height in multiple of 8 pixels
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| 
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|   uint8_t rowsToDraw,row, tempC;
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|   uint8_t i,j,temp;
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|   uint16_t charPerBitmapRow,charColPositionOnBitmap,charRowPositionOnBitmap,charBitmapStartPosition;
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| 
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|   if ((font>=TOTALFONTS) || (font<0))
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|     return;
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| 
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|   uint8_t fontType = font;
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|   uint8_t fontWidth = pgm_read_byte(fonts_pointer[fontType]+0);
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|   uint8_t fontHeight = pgm_read_byte(fonts_pointer[fontType]+1);
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|   uint8_t fontStartChar = pgm_read_byte(fonts_pointer[fontType]+2);
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|   uint8_t fontTotalChar = pgm_read_byte(fonts_pointer[fontType]+3);
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|   uint16_t fontMapWidth = (pgm_read_byte(fonts_pointer[fontType]+4)*100)+pgm_read_byte(fonts_pointer[fontType]+5); // two bytes values into integer 16
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| 
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|   if ((c<fontStartChar) || (c>(fontStartChar+fontTotalChar-1)))   // no bitmap for the required c
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|     return;
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| 
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|   tempC=c-fontStartChar;
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| 
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|   // each row (in datasheet is call page) is 8 bits high, 16 bit high character will have 2 rows to be drawn
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|   rowsToDraw=fontHeight/8;  // 8 is LCD's page size, see SSD1306 datasheet
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|   if (rowsToDraw<=1) rowsToDraw=1;
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| 
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|   // the following draw function can draw anywhere on the screen, but SLOW pixel by pixel draw
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|   if (rowsToDraw==1) {
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|     for  (i=0;i<fontWidth+1;i++) {
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|       if (i==fontWidth) // this is done in a weird way because for 5x7 font, there is no margin, this code add a margin after col 5
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|       temp=0;
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|       else
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|       temp=pgm_read_byte(fonts_pointer[fontType]+FONTHEADERSIZE+(tempC*fontWidth)+i);
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| 
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|       for (j=0;j<8;j++) {     // 8 is the LCD's page height (see datasheet for explanation)
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|         if (temp & 0x1) {
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|           draw_pixel(x+i, y+j, color,mode);
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|         }
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|         else {
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|           draw_pixel(x+i, y+j, !color,mode);
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|         }
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| 
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|         temp >>=1;
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|       }
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|     }
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|     return;
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|   }
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| 
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|   // font height over 8 bit
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|   // take character "0" ASCII 48 as example
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|   charPerBitmapRow = fontMapWidth/fontWidth;  // 256/8 =32 char per row
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|   charColPositionOnBitmap = tempC % charPerBitmapRow;  // =16
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|   charRowPositionOnBitmap = (int)(tempC/charPerBitmapRow); // =1
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|   charBitmapStartPosition = (charRowPositionOnBitmap * fontMapWidth * (fontHeight/8)) + (charColPositionOnBitmap * fontWidth) ;
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| 
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|   // each row on LCD is 8 bit height (see datasheet for explanation)
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|   for(row=0;row<rowsToDraw;row++) {
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|     for (i=0; i<fontWidth;i++) {
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|       temp=pgm_read_byte(fonts_pointer[fontType]+FONTHEADERSIZE+(charBitmapStartPosition+i+(row*fontMapWidth)));
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|       for (j=0;j<8;j++) {     // 8 is the LCD's page height (see datasheet for explanation)
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|         if (temp & 0x1) {
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|           draw_pixel(x+i,y+j+(row*8), color, mode);
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|         }
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|         else {
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|           draw_pixel(x+i,y+j+(row*8), !color, mode);
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|         }
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|         temp >>=1;
 | |
|       }
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|     }
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|   }
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| 
 | |
| }
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| 
 | |
| void draw_string(uint8_t x, uint8_t y, char * string, uint8_t color, uint8_t mode, uint8_t font) {
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| 
 | |
|   if ((font>=TOTALFONTS) || (font<0))
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|     return;
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| 
 | |
|   uint8_t fontType = font;
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|   uint8_t fontWidth = pgm_read_byte(fonts_pointer[fontType]+0);
 | |
| 
 | |
|   uint8_t cur_x = x;
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|   for (int i = 0; i < strlen(string); i++) {
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|     draw_char(cur_x, y, string[i], color, mode, font);
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|     cur_x += fontWidth + 1;
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|   }
 | |
| 
 | |
| }
 |