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5110.cpp
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5110.cpp
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/**
* File: 5110.cpp
* Version: 1.0
* Date: 2013
* License: GPL v3
* Description: unbuffered driver for Nokia 3110 / 5110 LCD
* Project: uRADMonitor KIT1, a hackable digital sensor monitoring tool with network interface
*
* Copyright 2007 by Tony Myatt
* Copyright 2013 by Radu Motisan, [email protected]
* Copyright 2016 by Magnasci SRL, www.magnasci.com
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include <stdio.h>
#include <avr/pgmspace.h>
#include "5110.h"
// Alphabet lookup font
// we are actually using 6x8 pixels, but the last are for border
// this means in 84x48 we have 14x6 characters
// the list is ordonated by the ASCII codes
const uint8_t PROGMEM font5x7 [][CHAR_WIDTH - 1] = {
{ 0x00, 0x00, 0x00, 0x00, 0x00 }, // sp
{ 0x00, 0x00, 0x2f, 0x00, 0x00 }, // !
{ 0x00, 0x07, 0x00, 0x07, 0x00 }, // "
{ 0x14, 0x7f, 0x14, 0x7f, 0x14 }, // #
{ 0x24, 0x2a, 0x7f, 0x2a, 0x12 }, // $
{ 0x32, 0x34, 0x08, 0x16, 0x26 }, // %
{ 0x36, 0x49, 0x55, 0x22, 0x50 }, // &
{ 0x00, 0x05, 0x03, 0x00, 0x00 }, // '
{ 0x00, 0x1c, 0x22, 0x41, 0x00 }, // (
{ 0x00, 0x41, 0x22, 0x1c, 0x00 }, // )
{ 0x14, 0x08, 0x3E, 0x08, 0x14 }, // *
{ 0x08, 0x08, 0x3E, 0x08, 0x08 }, // +
{ 0x00, 0x00, 0x50, 0x30, 0x00 }, // ,
{ 0x10, 0x10, 0x10, 0x10, 0x10 }, // -
{ 0x00, 0x60, 0x60, 0x00, 0x00 }, // .
{ 0x20, 0x10, 0x08, 0x04, 0x02 }, // /
{ 0x3E, 0x51, 0x49, 0x45, 0x3E }, // 0
{ 0x00, 0x42, 0x7F, 0x40, 0x00 }, // 1
{ 0x42, 0x61, 0x51, 0x49, 0x46 }, // 2
{ 0x21, 0x41, 0x45, 0x4B, 0x31 }, // 3
{ 0x18, 0x14, 0x12, 0x7F, 0x10 }, // 4
{ 0x27, 0x45, 0x45, 0x45, 0x39 }, // 5
{ 0x3C, 0x4A, 0x49, 0x49, 0x30 }, // 6
{ 0x01, 0x71, 0x09, 0x05, 0x03 }, // 7
{ 0x36, 0x49, 0x49, 0x49, 0x36 }, // 8
{ 0x06, 0x49, 0x49, 0x29, 0x1E }, // 9
{ 0x00, 0x36, 0x36, 0x00, 0x00 }, // :
{ 0x00, 0x56, 0x36, 0x00, 0x00 }, // ;
{ 0x08, 0x14, 0x22, 0x41, 0x00 }, // <
{ 0x14, 0x14, 0x14, 0x14, 0x14 }, // =
{ 0x00, 0x41, 0x22, 0x14, 0x08 }, // >
{ 0x02, 0x01, 0x51, 0x09, 0x06 }, // ?
{ 0x32, 0x49, 0x59, 0x51, 0x3E }, // @
{ 0x7E, 0x11, 0x11, 0x11, 0x7E }, // A
{ 0x7F, 0x49, 0x49, 0x49, 0x36 }, // B
{ 0x3E, 0x41, 0x41, 0x41, 0x22 }, // C
{ 0x7F, 0x41, 0x41, 0x22, 0x1C }, // D
{ 0x7F, 0x49, 0x49, 0x49, 0x41 }, // E
{ 0x7F, 0x09, 0x09, 0x09, 0x01 }, // F
{ 0x3E, 0x41, 0x49, 0x49, 0x7A }, // G
{ 0x7F, 0x08, 0x08, 0x08, 0x7F }, // H
{ 0x00, 0x41, 0x7F, 0x41, 0x00 }, // I
{ 0x20, 0x40, 0x41, 0x3F, 0x01 }, // J
{ 0x7F, 0x08, 0x14, 0x22, 0x41 }, // K
{ 0x7F, 0x40, 0x40, 0x40, 0x40 }, // L
{ 0x7F, 0x02, 0x0C, 0x02, 0x7F }, // M
{ 0x7F, 0x04, 0x08, 0x10, 0x7F }, // N
{ 0x3E, 0x41, 0x41, 0x41, 0x3E }, // O
{ 0x7F, 0x09, 0x09, 0x09, 0x06 }, // P
{ 0x3E, 0x41, 0x51, 0x21, 0x5E }, // Q
{ 0x7F, 0x09, 0x19, 0x29, 0x46 }, // R
{ 0x46, 0x49, 0x49, 0x49, 0x31 }, // S
{ 0x01, 0x01, 0x7F, 0x01, 0x01 }, // T
{ 0x3F, 0x40, 0x40, 0x3F }, // U
{ 0x1F, 0x20, 0x40, 0x20, 0x1F }, // V
{ 0x3F, 0x40, 0x38, 0x40, 0x3F }, // W
{ 0x63, 0x14, 0x08, 0x14, 0x63 }, // X
{ 0x07, 0x08, 0x70, 0x08, 0x07 }, // Y
{ 0x61, 0x51, 0x49, 0x45, 0x43 }, // Z
{ 0x00, 0x7F, 0x41, 0x41, 0x00 }, // [
{ 0x55, 0x2A, 0x55, 0x2A, 0x55 }, // 55 /
{ 0x00, 0x41, 0x41, 0x7F, 0x00 }, // ]
{ 0x04, 0x02, 0x01, 0x02, 0x04 }, // ^
{ 0x40, 0x40, 0x40, 0x40, 0x40 }, // _
{ 0x00, 0x01, 0x02, 0x04, 0x00 }, // '
{ 0x20, 0x54, 0x54, 0x54, 0x78 }, // a
{ 0x7F, 0x48, 0x44, 0x44, 0x38 }, // b
{ 0x38, 0x44, 0x44, 0x44, 0x20 }, // c
{ 0x38, 0x44, 0x44, 0x48, 0x7F }, // d
{ 0x38, 0x54, 0x54, 0x54, 0x18 }, // e
{ 0x08, 0x7E, 0x09, 0x01, 0x02 }, // f
{ 0x0C, 0x52, 0x52, 0x52, 0x3E }, // g
{ 0x7F, 0x08, 0x04, 0x04, 0x78 }, // h
{ 0x00, 0x44, 0x7D, 0x40, 0x00 }, // i
{ 0x20, 0x40, 0x44, 0x3D, 0x00 }, // j
{ 0x7F, 0x10, 0x28, 0x44, 0x00 }, // k
{ 0x00, 0x41, 0x7F, 0x40, 0x00 }, // l
{ 0x7C, 0x04, 0x18, 0x04, 0x78 }, // m
{ 0x7C, 0x08, 0x04, 0x04, 0x78 }, // n
{ 0x38, 0x44, 0x44, 0x44, 0x38 }, // o
{ 0x7C, 0x14, 0x14, 0x14, 0x08 }, // p
{ 0x08, 0x14, 0x14, 0x18, 0x7C }, // q
{ 0x7C, 0x08, 0x04, 0x04, 0x08 }, // r
{ 0x48, 0x54, 0x54, 0x54, 0x20 }, // s
{ 0x04, 0x3F, 0x44, 0x40, 0x20 }, // t
{ 0x3C, 0x40, 0x40, 0x20, 0x7C }, // u
{ 0x1C, 0x20, 0x40, 0x20, 0x1C }, // v
{ 0x3C, 0x40, 0x30, 0x40, 0x3C }, // w
{ 0x44, 0x28, 0x10, 0x28, 0x44 }, // x
{ 0x0C, 0x50, 0x50, 0x50, 0x3C }, // y
{ 0x44, 0x64, 0x54, 0x4C, 0x44 }, // z 0x7A
{ 0x00, 0x7F, 0x3E, 0x1C, 0x08 }, // > Filled {
{ 0x08, 0x1C, 0x3E, 0x7F, 0x00 }, // < Filled |
{ 0x08, 0x7C, 0x7E, 0x7C, 0x08 }, // Arrow up }
{ 0x10, 0x3E, 0x7E, 0x3E, 0x10 }, // Arrow down ~
{ 0x3E, 0x3E, 0x3E, 0x3E, 0x3E }, // Stop 0x7F
{ 0x00, 0x7F, 0x3E, 0x1C, 0x08 }, // Play 0x80
/*{ 0x7F, 0x7F, 0x7F, 0x7F, 0x7F }, // bat 1 0x81
{ 0x77, 0x7B, 0x41, 0x7B, 0x77 }, // bat 2 0x82
{ 0x7F, 0x7F, 0x7F, 0x1C, 0x1C }, // bat 3 0x83*/
{ 0x7F, 0x41, 0x5D, 0x55, 0x55 }, // bat 1 0x81
{ 0x49, 0x49, 0x49, 0x5D, 0x49 }, // bat 1 0x82 //charging
{ 0x41, 0x41, 0x41, 0x7F, 0x1C }, // bat 1 0x83
{ 0x7F, 0x41, 0x5D, 0x5D, 0x5D }, // bat 2 0x84
{ 0x5D, 0x5D, 0x5D, 0x5D, 0x5D }, // bat 2 0x85 //full
{ 0x5D, 0x5D, 0x41, 0x7F, 0x1C }, // bat 2 0x86
{ 0x7F, 0x41, 0x5D, 0x5D, 0x5D }, // bat 3 0x87
{ 0x5D, 0x5D, 0x59, 0x51, 0x41 }, // bat 3 0x88 //half
{ 0x41, 0x41, 0x41, 0x7F, 0x1C }, // bat 3 0x89
{ 0x7F, 0x41, 0x5D, 0x59, 0x51 }, // bat 4 0x8A
{ 0x41, 0x41, 0x41, 0x41, 0x41 }, // bat 4 0x8B //empty
{ 0x41, 0x41, 0x41, 0x7F, 0x1C }, // bat 4 0x8C
{ 0x40, 0x3C, 0x10, 0x1C, 0x00 }, // micro 0x8D
{ 0x04, 0x26, 0x38, 0x26, 0x04 }, // radsign 0x8E
{ 0x67, 0x15, 0x60, 0x17, 0x63 }, // CPM sign 0x8F
{ 0x7C, 0x7C, 0x0C, 0x0C, 0x0C }, // sign 0x90
{ 0x0C, 0x0C, 0x0C, 0x7C, 0x7C }, // sign 0x91
{ 0x7F, 0x7F, 0x00, 0x00, 0x00 }, // sign 0x92
{ 0x00, 0x00, 0x00, 0x7F, 0x7F }, // sign 0x93
{ 0x0C, 0x0C, 0x0C, 0x0C, 0x0C }, // sign 0x94
{ 0x0F, 0x0F, 0x0C, 0x0C, 0x0C }, // sign 0x95
{ 0x0C, 0x0C, 0x0C, 0x0F, 0x0F }, // sign 0x96
{ 0x1C, 0x1C, 0x3E, 0x7F, 0x00 }, // speaker on 0x97
{ 0x1A, 0x14, 0x2E, 0x5F, 0x20 }, // speaker off 0x98
{ 0x07, 0x75, 0x5D, 0x57, 0x70 }, // lan on 0x99
{ 0x05, 0x72, 0x5D, 0x50, 0x70 }, // lan off 0x9A
{ 0x00, 0x07, 0x05, 0x07, 0x00 }, // degrees 0x9B
{ 0x1F, 0x05, 0x72, 0x28, 0x70 } // Pascals 0x9C
};
LCD_5110::LCD_5110(DigitalPin *rst, DigitalPin *ce, DigitalPin *dc, DigitalPin *data, DigitalPin *clk, DigitalPin *backlight) {
lcdCacheIdx = 0;
m_rst = rst;
m_ce = ce;
m_dc = dc;
m_data = data;
m_clk = clk;
m_backlight = backlight;
}
/* Performs IO & LCD controller initialization */
void LCD_5110::init() {
// Pull-up on reset pin
*m_rst = 1;
// Wait after VCC high for reset (max 30ms)
_delay_ms(15);
// Toggle display reset pin
*m_rst = 0;
_delay_ms(64);
*m_rst = 1;
// Disable LCD controller
*m_ce = 0;
send(LCD_EXTENDED_COMMANDS, LCD_CMD);
send(LCD_VOP, LCD_CMD);
send(LCD_TEMP, LCD_CMD);
send(LCD_BIAS_MODE, LCD_CMD);
send(LCD_HOR_ADDRESSING, LCD_CMD);
send(LCD_NORMAL_MODE, LCD_CMD);
// Clear lcd
clear();
// Set display contrast. Note: No change is visible at ambient temperature
int contrast = 0x40;
send(LCD_EXTENDED_COMMANDS, LCD_CMD); // LCD Extended Commands
send(0x80 | contrast, LCD_CMD); // Set LCD Vop(Contrast)
send(LCD_HOR_ADDRESSING, LCD_CMD); // LCD std cmds, hori addr mode
}
// Clears the display
void LCD_5110::clear(void) {
lcdCacheIdx = 0;
base_addr(lcdCacheIdx);
// Set the entire cache to zero and write 0s to lcd
int size = ((LCD_WIDTH * LCD_HEIGHT) / CHAR_HEIGHT);
for(int i=0;i<size;i++) send(0, LCD_DATA);
}
// Clears an area on a line
void LCD_5110::clear_area(uint8_t line, uint8_t startX, uint8_t endX) {
// Start and end positions of line
int start = line * LCD_WIDTH + startX;
int end = line * LCD_WIDTH + endX;
base_addr(start);
// Clear all data in range from cache
for(uint16_t i = start; i < end; i++) send(0, LCD_DATA);
}
// Clears an entire text block. (rows of 8 pixels on the lcd)
void LCD_5110::clear_line(uint8_t line) {
clear_area(line, 0, LCD_WIDTH);
}
// Sets cursor location to xy location corresponding to basic font size
void LCD_5110::goto_xy(uint8_t x, uint8_t y) {
lcdCacheIdx = x*CHAR_WIDTH + y * LCD_WIDTH;
}
// Sets cursor location to exact xy pixel location on the lcd
void LCD_5110::goto_xy_exact(uint8_t x, uint8_t y) {
lcdCacheIdx = x + y * LCD_WIDTH;
}
// Sends data to display controller : a line of 8 pixels, as defined by data
void LCD_5110::send(uint8_t byte, Type cd) {
// Enable display controller (active low)
*m_ce = 0;
// Either command or data
*m_dc = (cd == LCD_DATA);
for(uint8_t i=0;i<8;i++) {
// Set the DATA pin value:8 bits in a row
*m_data = (byte >> (7-i)) & 0x01;
// Toggle the clock after each data bit
*m_clk = 1;
*m_clk = 0;
}
// Disable display controller
*m_ce = 1;
}
// Displays a character at current cursor location or moves to new line if enter char is given
void LCD_5110::send(char chr) {
if (chr == '\n') {
// move to next line and first column
lcdCacheIdx = lcdCacheIdx + LCD_WIDTH - lcdCacheIdx % LCD_WIDTH; //next line and x=0
} else {
base_addr(lcdCacheIdx);
// 5 pixel wide characters and add space
for(uint8_t i=0; i < CHAR_WIDTH - 1; i++)
send(pgm_read_byte(&font5x7[chr-32][i]) << 1, LCD_DATA);
send(0, LCD_DATA); // right empty separator line of 8 vertical pixels
lcdCacheIdx += CHAR_WIDTH;
}
}
// Displays null terminated string at current cursor location and increment cursor location
void LCD_5110::send(char *str) {
while(*str) send(*str++);
}
void LCD_5110::send(const char *str) {
while(pgm_read_byte(str)) send(pgm_read_byte(str++));
}
// displays a formated string, similar to printf
void LCD_5110::send(char *buffer, uint16_t len, const char *szFormat, ...) {
va_list pArgs;
va_start(pArgs, szFormat);
vsnprintf_P(buffer, len, szFormat, pArgs);
va_end(pArgs);
send(buffer);
}
// Set the base address of the lcd
void LCD_5110::base_addr(uint16_t addr) {
send(LCD_SETXADDR |(addr % LCD_WIDTH), LCD_CMD);
send(LCD_SETYADDR |(addr / LCD_WIDTH), LCD_CMD);
}
void LCD_5110::col(char chr) {
base_addr(lcdCacheIdx);
send(chr, LCD_DATA);
lcdCacheIdx++;
}
// It goes back the cursor on LCD for a single step
void LCD_5110::pixelBack(void) {
lcdCacheIdx--;
}
// Prints on LCD a hex based picture, A hex picture can be produced from the "LCDAssistant.exe" windows based software.
void LCD_5110::printPictureOnLCD ( const uint8_t *data) {
uint16_t pixel_cols = LCD_WIDTH * (LCD_HEIGHT / CHAR_HEIGHT); //<6> means 6 lines on LCD.
goto_xy(0, 0);
for(int i=0;i<pixel_cols;i++) col(pgm_read_byte(data++));
}
// the most basic function, set a single pixel
void LCD_5110::drawPixel(uint8_t x, uint8_t y, int color) {
uint16_t pixel_addr = x + y/CHAR_HEIGHT * LCD_WIDTH;
send(LCD_SETXADDR |(pixel_addr % LCD_WIDTH), LCD_CMD);
send(LCD_SETYADDR |(pixel_addr / LCD_WIDTH), LCD_CMD);
if (color)
send(1<<(y % CHAR_HEIGHT), LCD_DATA); //"black pixel"
else
send(0, LCD_DATA); //"remove black pixel"
}
void LCD_5110::setBacklight(bool mode) {
*m_backlight = mode;
}