kopia lustrzana https://github.com/k3ng/k3ng_cw_keyer
Adding the library needed for the Adafruit i2c/spi backpack support
Josiah S. Ritchie
rodzic
446c44d3fd
commit
c5f3cdc357
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#include "Arduino.h"
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#include "Adafruit_LiquidCrystal.h"
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#include <stdio.h>
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#include <string.h>
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#include <inttypes.h>
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// FOR Arduino Due
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#if !defined(_BV)
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# define _BV(bit) (1 << (bit))
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#endif
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// When the display powers up, it is configured as follows:
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//
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// 1. Display clear
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// 2. Function set:
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// DL = 1; 8-bit interface data
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// N = 0; 1-line display
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// F = 0; 5x8 dot character font
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// 3. Display on/off control:
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// D = 0; Display off
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// C = 0; Cursor off
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// B = 0; Blinking off
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// 4. Entry mode set:
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// I/D = 1; Increment by 1
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// S = 0; No shift
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//
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// Note, however, that resetting the Arduino doesn't reset the LCD, so we
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// can't assume that its in that state when a sketch starts (and the
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// Adafruit_LiquidCrystal constructor is called).
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Adafruit_LiquidCrystal::Adafruit_LiquidCrystal(uint8_t rs, uint8_t rw, uint8_t enable,
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uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3,
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uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7)
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{
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init(0, rs, rw, enable, d0, d1, d2, d3, d4, d5, d6, d7);
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}
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Adafruit_LiquidCrystal::Adafruit_LiquidCrystal(uint8_t rs, uint8_t enable,
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uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3,
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uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7)
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{
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init(0, rs, 255, enable, d0, d1, d2, d3, d4, d5, d6, d7);
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}
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Adafruit_LiquidCrystal::Adafruit_LiquidCrystal(uint8_t rs, uint8_t rw, uint8_t enable,
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uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3)
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{
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init(1, rs, rw, enable, d0, d1, d2, d3, 0, 0, 0, 0);
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}
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Adafruit_LiquidCrystal::Adafruit_LiquidCrystal(uint8_t rs, uint8_t enable,
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uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3)
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{
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init(1, rs, 255, enable, d0, d1, d2, d3, 0, 0, 0, 0);
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}
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Adafruit_LiquidCrystal::Adafruit_LiquidCrystal(uint8_t i2caddr) {
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_i2cAddr = i2caddr;
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_displayfunction = LCD_4BITMODE | LCD_1LINE | LCD_5x8DOTS;
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// the I/O expander pinout
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_rs_pin = 1;
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_rw_pin = 255;
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_enable_pin = 2;
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_data_pins[0] = 3; // really d4
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_data_pins[1] = 4; // really d5
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_data_pins[2] = 5; // really d6
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_data_pins[3] = 6; // really d7
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// we can't begin() yet :(
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}
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Adafruit_LiquidCrystal::Adafruit_LiquidCrystal(uint8_t data, uint8_t clock, uint8_t latch ) {
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_i2cAddr = 255;
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_displayfunction = LCD_4BITMODE | LCD_1LINE | LCD_5x8DOTS;
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// the SPI expander pinout
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_rs_pin = 1;
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_rw_pin = 255;
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_enable_pin = 2;
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_data_pins[0] = 6; // really d4
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_data_pins[1] = 5; // really d5
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_data_pins[2] = 4; // really d6
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_data_pins[3] = 3; // really d7
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_SPIdata = data;
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_SPIclock = clock;
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_SPIlatch = latch;
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_SPIbuff = 0;
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// we can't begin() yet :(
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}
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void Adafruit_LiquidCrystal::init(uint8_t fourbitmode, uint8_t rs, uint8_t rw, uint8_t enable,
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uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3,
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uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7)
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{
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_rs_pin = rs;
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_rw_pin = rw;
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_enable_pin = enable;
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_data_pins[0] = d0;
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_data_pins[1] = d1;
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_data_pins[2] = d2;
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_data_pins[3] = d3;
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_data_pins[4] = d4;
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_data_pins[5] = d5;
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_data_pins[6] = d6;
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_data_pins[7] = d7;
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_i2cAddr = 255;
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_SPIclock = _SPIdata = _SPIlatch = 255;
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if (fourbitmode)
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_displayfunction = LCD_4BITMODE | LCD_1LINE | LCD_5x8DOTS;
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else
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_displayfunction = LCD_8BITMODE | LCD_1LINE | LCD_5x8DOTS;
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}
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void Adafruit_LiquidCrystal::begin(uint8_t cols, uint8_t lines, uint8_t dotsize) {
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// check if i2c
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if (_i2cAddr != 255) {
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_i2c.begin(_i2cAddr);
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_i2c.pinMode(7, OUTPUT); // backlight
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_i2c.digitalWrite(7, HIGH); // backlight
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for (uint8_t i=0; i<4; i++)
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_pinMode(_data_pins[i], OUTPUT);
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_i2c.pinMode(_rs_pin, OUTPUT);
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_i2c.pinMode(_enable_pin, OUTPUT);
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} else if (_SPIclock != 255) {
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pinMode(_SPIdata, OUTPUT);
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pinMode(_SPIclock, OUTPUT);
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pinMode(_SPIlatch, OUTPUT);
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_SPIbuff = 0x80; // backlight
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} else {
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pinMode(_rs_pin, OUTPUT);
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// we can save 1 pin by not using RW. Indicate by passing 255 instead of pin#
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if (_rw_pin != 255) {
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pinMode(_rw_pin, OUTPUT);
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}
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pinMode(_enable_pin, OUTPUT);
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}
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if (lines > 1) {
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_displayfunction |= LCD_2LINE;
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}
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_numlines = lines;
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_currline = 0;
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// for some 1 line displays you can select a 10 pixel high font
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if ((dotsize != 0) && (lines == 1)) {
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_displayfunction |= LCD_5x10DOTS;
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}
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// SEE PAGE 45/46 FOR INITIALIZATION SPECIFICATION!
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// according to datasheet, we need at least 40ms after power rises above 2.7V
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// before sending commands. Arduino can turn on way befer 4.5V so we'll wait 50
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delayMicroseconds(50000);
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// Now we pull both RS and R/W low to begin commands
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_digitalWrite(_rs_pin, LOW);
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_digitalWrite(_enable_pin, LOW);
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if (_rw_pin != 255) {
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_digitalWrite(_rw_pin, LOW);
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}
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//put the LCD into 4 bit or 8 bit mode
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if (! (_displayfunction & LCD_8BITMODE)) {
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// this is according to the hitachi HD44780 datasheet
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// figure 24, pg 46
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// we start in 8bit mode, try to set 4 bit mode
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write4bits(0x03);
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delayMicroseconds(4500); // wait min 4.1ms
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// second try
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write4bits(0x03);
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delayMicroseconds(4500); // wait min 4.1ms
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// third go!
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write4bits(0x03);
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delayMicroseconds(150);
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// finally, set to 8-bit interface
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write4bits(0x02);
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} else {
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// this is according to the hitachi HD44780 datasheet
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// page 45 figure 23
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// Send function set command sequence
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command(LCD_FUNCTIONSET | _displayfunction);
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delayMicroseconds(4500); // wait more than 4.1ms
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// second try
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command(LCD_FUNCTIONSET | _displayfunction);
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delayMicroseconds(150);
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// third go
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command(LCD_FUNCTIONSET | _displayfunction);
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}
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// finally, set # lines, font size, etc.
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command(LCD_FUNCTIONSET | _displayfunction);
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// turn the display on with no cursor or blinking default
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_displaycontrol = LCD_DISPLAYON | LCD_CURSOROFF | LCD_BLINKOFF;
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display();
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// clear it off
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clear();
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// Initialize to default text direction (for romance languages)
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_displaymode = LCD_ENTRYLEFT | LCD_ENTRYSHIFTDECREMENT;
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// set the entry mode
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command(LCD_ENTRYMODESET | _displaymode);
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}
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/********** high level commands, for the user! */
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void Adafruit_LiquidCrystal::clear()
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{
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command(LCD_CLEARDISPLAY); // clear display, set cursor position to zero
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delayMicroseconds(2000); // this command takes a long time!
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}
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void Adafruit_LiquidCrystal::home()
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{
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command(LCD_RETURNHOME); // set cursor position to zero
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delayMicroseconds(2000); // this command takes a long time!
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}
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void Adafruit_LiquidCrystal::setCursor(uint8_t col, uint8_t row)
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{
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int row_offsets[] = { 0x00, 0x40, 0x14, 0x54 };
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if ( row > _numlines ) {
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row = _numlines-1; // we count rows starting w/0
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}
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command(LCD_SETDDRAMADDR | (col + row_offsets[row]));
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}
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// Turn the display on/off (quickly)
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void Adafruit_LiquidCrystal::noDisplay() {
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_displaycontrol &= ~LCD_DISPLAYON;
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command(LCD_DISPLAYCONTROL | _displaycontrol);
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}
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void Adafruit_LiquidCrystal::display() {
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_displaycontrol |= LCD_DISPLAYON;
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command(LCD_DISPLAYCONTROL | _displaycontrol);
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}
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// Turns the underline cursor on/off
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void Adafruit_LiquidCrystal::noCursor() {
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_displaycontrol &= ~LCD_CURSORON;
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command(LCD_DISPLAYCONTROL | _displaycontrol);
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}
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void Adafruit_LiquidCrystal::cursor() {
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_displaycontrol |= LCD_CURSORON;
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command(LCD_DISPLAYCONTROL | _displaycontrol);
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}
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// Turn on and off the blinking cursor
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void Adafruit_LiquidCrystal::noBlink() {
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_displaycontrol &= ~LCD_BLINKON;
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command(LCD_DISPLAYCONTROL | _displaycontrol);
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}
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void Adafruit_LiquidCrystal::blink() {
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_displaycontrol |= LCD_BLINKON;
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command(LCD_DISPLAYCONTROL | _displaycontrol);
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}
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// These commands scroll the display without changing the RAM
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void Adafruit_LiquidCrystal::scrollDisplayLeft(void) {
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command(LCD_CURSORSHIFT | LCD_DISPLAYMOVE | LCD_MOVELEFT);
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}
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void Adafruit_LiquidCrystal::scrollDisplayRight(void) {
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command(LCD_CURSORSHIFT | LCD_DISPLAYMOVE | LCD_MOVERIGHT);
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}
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// This is for text that flows Left to Right
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void Adafruit_LiquidCrystal::leftToRight(void) {
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_displaymode |= LCD_ENTRYLEFT;
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command(LCD_ENTRYMODESET | _displaymode);
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}
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// This is for text that flows Right to Left
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void Adafruit_LiquidCrystal::rightToLeft(void) {
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_displaymode &= ~LCD_ENTRYLEFT;
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command(LCD_ENTRYMODESET | _displaymode);
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}
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// This will 'right justify' text from the cursor
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void Adafruit_LiquidCrystal::autoscroll(void) {
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_displaymode |= LCD_ENTRYSHIFTINCREMENT;
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command(LCD_ENTRYMODESET | _displaymode);
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}
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// This will 'left justify' text from the cursor
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void Adafruit_LiquidCrystal::noAutoscroll(void) {
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_displaymode &= ~LCD_ENTRYSHIFTINCREMENT;
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command(LCD_ENTRYMODESET | _displaymode);
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}
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// Allows us to fill the first 8 CGRAM locations
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// with custom characters
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void Adafruit_LiquidCrystal::createChar(uint8_t location, uint8_t charmap[]) {
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location &= 0x7; // we only have 8 locations 0-7
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command(LCD_SETCGRAMADDR | (location << 3));
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for (int i=0; i<8; i++) {
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write(charmap[i]);
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}
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}
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/*********** mid level commands, for sending data/cmds */
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inline void Adafruit_LiquidCrystal::command(uint8_t value) {
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send(value, LOW);
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}
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#if ARDUINO >= 100
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inline size_t Adafruit_LiquidCrystal::write(uint8_t value) {
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send(value, HIGH);
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return 1;
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}
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#else
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inline void Adafruit_LiquidCrystal::write(uint8_t value) {
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send(value, HIGH);
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}
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#endif
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/************ low level data pushing commands **********/
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// little wrapper for i/o writes
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void Adafruit_LiquidCrystal::_digitalWrite(uint8_t p, uint8_t d) {
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if (_i2cAddr != 255) {
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// an i2c command
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_i2c.digitalWrite(p, d);
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} else if (_SPIclock != 255) {
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if (d == HIGH)
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_SPIbuff |= (1 << p);
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else
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_SPIbuff &= ~(1 << p);
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digitalWrite(_SPIlatch, LOW);
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shiftOut(_SPIdata, _SPIclock, MSBFIRST,_SPIbuff);
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digitalWrite(_SPIlatch, HIGH);
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} else {
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// straightup IO
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digitalWrite(p, d);
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}
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}
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// Allows to set the backlight, if the LCD backpack is used
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void Adafruit_LiquidCrystal::setBacklight(uint8_t status) {
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// check if i2c or SPI
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if ((_i2cAddr != 255) || (_SPIclock != 255)) {
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_digitalWrite(7, status); // backlight is on pin 7
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}
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}
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// little wrapper for i/o directions
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void Adafruit_LiquidCrystal::_pinMode(uint8_t p, uint8_t d) {
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if (_i2cAddr != 255) {
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// an i2c command
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_i2c.pinMode(p, d);
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} else if (_SPIclock != 255) {
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// nothing!
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} else {
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// straightup IO
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pinMode(p, d);
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}
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}
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// write either command or data, with automatic 4/8-bit selection
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void Adafruit_LiquidCrystal::send(uint8_t value, boolean mode) {
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_digitalWrite(_rs_pin, mode);
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// if there is a RW pin indicated, set it low to Write
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if (_rw_pin != 255) {
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_digitalWrite(_rw_pin, LOW);
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}
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if (_displayfunction & LCD_8BITMODE) {
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write8bits(value);
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} else {
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write4bits(value>>4);
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write4bits(value);
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}
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}
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void Adafruit_LiquidCrystal::pulseEnable(void) {
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_digitalWrite(_enable_pin, LOW);
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delayMicroseconds(1);
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_digitalWrite(_enable_pin, HIGH);
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delayMicroseconds(1); // enable pulse must be >450ns
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_digitalWrite(_enable_pin, LOW);
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delayMicroseconds(100); // commands need > 37us to settle
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}
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void Adafruit_LiquidCrystal::write4bits(uint8_t value) {
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if (_i2cAddr != 255) {
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uint8_t out = 0;
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out = _i2c.readGPIO();
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// speed up for i2c since its sluggish
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for (int i = 0; i < 4; i++) {
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out &= ~_BV(_data_pins[i]);
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out |= ((value >> i) & 0x1) << _data_pins[i];
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}
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// make sure enable is low
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out &= ~ _BV(_enable_pin);
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_i2c.writeGPIO(out);
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// pulse enable
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delayMicroseconds(1);
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out |= _BV(_enable_pin);
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_i2c.writeGPIO(out);
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delayMicroseconds(1);
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out &= ~_BV(_enable_pin);
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_i2c.writeGPIO(out);
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delayMicroseconds(100);
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} else {
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for (int i = 0; i < 4; i++) {
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_pinMode(_data_pins[i], OUTPUT);
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_digitalWrite(_data_pins[i], (value >> i) & 0x01);
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}
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pulseEnable();
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}
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}
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void Adafruit_LiquidCrystal::write8bits(uint8_t value) {
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for (int i = 0; i < 8; i++) {
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_pinMode(_data_pins[i], OUTPUT);
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_digitalWrite(_data_pins[i], (value >> i) & 0x01);
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}
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pulseEnable();
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}
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@ -0,0 +1,124 @@
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#ifndef Adafruit_LiquidCrystal_h
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#define Adafruit_LiquidCrystal_h
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#include "Arduino.h"
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#include <inttypes.h>
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#include "Print.h"
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#include "utility/Adafruit_MCP23008.h"
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// commands
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#define LCD_CLEARDISPLAY 0x01
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#define LCD_RETURNHOME 0x02
|
||||
#define LCD_ENTRYMODESET 0x04
|
||||
#define LCD_DISPLAYCONTROL 0x08
|
||||
#define LCD_CURSORSHIFT 0x10
|
||||
#define LCD_FUNCTIONSET 0x20
|
||||
#define LCD_SETCGRAMADDR 0x40
|
||||
#define LCD_SETDDRAMADDR 0x80
|
||||
|
||||
// flags for display entry mode
|
||||
#define LCD_ENTRYRIGHT 0x00
|
||||
#define LCD_ENTRYLEFT 0x02
|
||||
#define LCD_ENTRYSHIFTINCREMENT 0x01
|
||||
#define LCD_ENTRYSHIFTDECREMENT 0x00
|
||||
|
||||
// flags for display on/off control
|
||||
#define LCD_DISPLAYON 0x04
|
||||
#define LCD_DISPLAYOFF 0x00
|
||||
#define LCD_CURSORON 0x02
|
||||
#define LCD_CURSOROFF 0x00
|
||||
#define LCD_BLINKON 0x01
|
||||
#define LCD_BLINKOFF 0x00
|
||||
|
||||
// flags for display/cursor shift
|
||||
#define LCD_DISPLAYMOVE 0x08
|
||||
#define LCD_CURSORMOVE 0x00
|
||||
#define LCD_MOVERIGHT 0x04
|
||||
#define LCD_MOVELEFT 0x00
|
||||
|
||||
// flags for function set
|
||||
#define LCD_8BITMODE 0x10
|
||||
#define LCD_4BITMODE 0x00
|
||||
#define LCD_2LINE 0x08
|
||||
#define LCD_1LINE 0x00
|
||||
#define LCD_5x10DOTS 0x04
|
||||
#define LCD_5x8DOTS 0x00
|
||||
|
||||
class Adafruit_LiquidCrystal : public Print {
|
||||
public:
|
||||
Adafruit_LiquidCrystal(uint8_t rs, uint8_t enable,
|
||||
uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3,
|
||||
uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7);
|
||||
Adafruit_LiquidCrystal(uint8_t rs, uint8_t rw, uint8_t enable,
|
||||
uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3,
|
||||
uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7);
|
||||
Adafruit_LiquidCrystal(uint8_t rs, uint8_t rw, uint8_t enable,
|
||||
uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3);
|
||||
Adafruit_LiquidCrystal(uint8_t rs, uint8_t enable,
|
||||
uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3);
|
||||
|
||||
Adafruit_LiquidCrystal(uint8_t i2cAddr);
|
||||
Adafruit_LiquidCrystal(uint8_t data, uint8_t clock, uint8_t latch);
|
||||
|
||||
void init(uint8_t fourbitmode, uint8_t rs, uint8_t rw, uint8_t enable,
|
||||
uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3,
|
||||
uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7);
|
||||
|
||||
void begin(uint8_t cols, uint8_t rows, uint8_t charsize = LCD_5x8DOTS);
|
||||
|
||||
void clear();
|
||||
void home();
|
||||
|
||||
void noDisplay();
|
||||
void display();
|
||||
void noBlink();
|
||||
void blink();
|
||||
void noCursor();
|
||||
void cursor();
|
||||
void scrollDisplayLeft();
|
||||
void scrollDisplayRight();
|
||||
void leftToRight();
|
||||
void rightToLeft();
|
||||
void autoscroll();
|
||||
void noAutoscroll();
|
||||
|
||||
// only if using backpack
|
||||
void setBacklight(uint8_t status);
|
||||
|
||||
void createChar(uint8_t, uint8_t[]);
|
||||
void setCursor(uint8_t, uint8_t);
|
||||
#if ARDUINO >= 100
|
||||
virtual size_t write(uint8_t);
|
||||
#else
|
||||
virtual void write(uint8_t);
|
||||
#endif
|
||||
void command(uint8_t);
|
||||
private:
|
||||
void send(uint8_t value, boolean mode);
|
||||
void write4bits(uint8_t);
|
||||
void write8bits(uint8_t);
|
||||
void pulseEnable();
|
||||
void _digitalWrite(uint8_t, uint8_t);
|
||||
void _pinMode(uint8_t, uint8_t);
|
||||
|
||||
uint8_t _rs_pin; // LOW: command. HIGH: character.
|
||||
uint8_t _rw_pin; // LOW: write to LCD. HIGH: read from LCD.
|
||||
uint8_t _enable_pin; // activated by a HIGH pulse.
|
||||
uint8_t _data_pins[8];
|
||||
|
||||
uint8_t _displayfunction;
|
||||
uint8_t _displaycontrol;
|
||||
uint8_t _displaymode;
|
||||
|
||||
uint8_t _initialized;
|
||||
|
||||
uint8_t _numlines,_currline;
|
||||
|
||||
uint8_t _SPIclock, _SPIdata, _SPIlatch;
|
||||
uint8_t _SPIbuff;
|
||||
|
||||
uint8_t _i2cAddr;
|
||||
Adafruit_MCP23008 _i2c;
|
||||
};
|
||||
|
||||
#endif
|
||||
|
|
@ -0,0 +1,37 @@
|
|||
# Adafruit_LiquidCrystal
|
||||
|
||||
This library has been renamed Adafruit_LiquidCrystal so as not to conflict with LiquidCrystal. Also, it now works with tiny85's if you have Adafruit AVR board pkg 1.4.3+
|
||||
|
||||
<!-- START COMPATIBILITY TABLE -->
|
||||
|
||||
## Compatibility
|
||||
|
||||
MCU | Tested Works | Doesn't Work | Not Tested | Notes
|
||||
----------------- | :----------: | :----------: | :---------: | -----
|
||||
Atmega328 @ 16MHz | X | | |
|
||||
Atmega328 @ 12MHz | X | | | For SPI, Pro Trinket has no pin 2, can move to pin 5.
|
||||
Atmega32u4 @ 16MHz | X | | |
|
||||
Atmega32u4 @ 8MHz | X | | |
|
||||
ESP8266 | X | | | For SPI, ESP8266 has no pin 3, moved to pin 5.
|
||||
Atmega2560 @ 16MHz | X | | |
|
||||
ATSAM3X8E | X | | |
|
||||
ATSAM21D | | X | | I2C works, use SDA and SCL pins. For SPI, LCD blinks once on start up.
|
||||
ATtiny85 @ 16MHz | | X | | Use TinyLiquidCrystal libray instead: https://github.com/adafruit/TinyLiquidCrystal
|
||||
|
||||
I2C uses SDA & SCL pins 0 & 2
|
||||
ATtiny85 @ 8MHz | | X | | Use TinyLiquidCrystal libray instead: https://github.com/adafruit/TinyLiquidCrystal
|
||||
|
||||
I2C uses SDA & SCL pins 0 & 2
|
||||
|
||||
* ATmega328 @ 16MHz : Arduino UNO, Adafruit Pro Trinket 5V, Adafruit Metro 328, Adafruit Metro Mini
|
||||
* ATmega328 @ 12MHz : Adafruit Pro Trinket 3V
|
||||
* ATmega32u4 @ 16MHz : Arduino Leonardo, Arduino Micro, Arduino Yun, Teensy 2.0
|
||||
* ATmega32u4 @ 8MHz : Adafruit Flora, Bluefruit Micro
|
||||
* ESP8266 : Adafruit Huzzah
|
||||
* ATmega2560 @ 16MHz : Arduino Mega
|
||||
* ATSAM3X8E : Arduino Due
|
||||
* ATSAM21D : Arduino Zero, M0 Pro
|
||||
* ATtiny85 @ 16MHz : Adafruit Trinket 5V
|
||||
* ATtiny85 @ 8MHz : Adafruit Gemma, Arduino Gemma, Adafruit Trinket 3V
|
||||
|
||||
<!-- END COMPATIBILITY TABLE -->
|
||||
|
|
@ -0,0 +1,38 @@
|
|||
#######################################
|
||||
# Syntax Coloring Map For LiquidCrystal
|
||||
#######################################
|
||||
|
||||
#######################################
|
||||
# Datatypes (KEYWORD1)
|
||||
#######################################
|
||||
|
||||
Adafruit_LiquidCrystal KEYWORD1
|
||||
|
||||
#######################################
|
||||
# Methods and Functions (KEYWORD2)
|
||||
#######################################
|
||||
|
||||
begin KEYWORD2
|
||||
clear KEYWORD2
|
||||
home KEYWORD2
|
||||
print KEYWORD2
|
||||
setCursor KEYWORD2
|
||||
cursor KEYWORD2
|
||||
noCursor KEYWORD2
|
||||
blink KEYWORD2
|
||||
noBlink KEYWORD2
|
||||
display KEYWORD2
|
||||
noDisplay KEYWORD2
|
||||
autoscroll KEYWORD2
|
||||
noAutoscroll KEYWORD2
|
||||
leftToRight KEYWORD2
|
||||
rightToLeft KEYWORD2
|
||||
scrollDisplayLeft KEYWORD2
|
||||
scrollDisplayRight KEYWORD2
|
||||
createChar KEYWORD2
|
||||
setBacklight KEYWORD2
|
||||
|
||||
#######################################
|
||||
# Constants (LITERAL1)
|
||||
#######################################
|
||||
|
||||
|
|
@ -0,0 +1,9 @@
|
|||
name=Adafruit LiquidCrystal
|
||||
version=1.0.0
|
||||
author=Adafruit
|
||||
maintainer=Adafruit <info@adafruit.com>
|
||||
sentence=Fork of LiquidCrystal HD44780-compatible LCD driver library, now with support for ATtiny85.
|
||||
paragraph=Fork of LiquidCrystal HD44780-compatible LCD driver library, now with support for ATtiny85.
|
||||
category=Display
|
||||
url=https://github.com/adafruit/LiquidCrystal/
|
||||
architectures=*
|
||||
|
|
@ -0,0 +1,175 @@
|
|||
/***************************************************
|
||||
This is a library for the MCP23008 i2c port expander
|
||||
|
||||
These displays use I2C to communicate, 2 pins are required to
|
||||
interface
|
||||
Adafruit invests time and resources providing this open source code,
|
||||
please support Adafruit and open-source hardware by purchasing
|
||||
products from Adafruit!
|
||||
|
||||
Written by Limor Fried/Ladyada for Adafruit Industries.
|
||||
BSD license, all text above must be included in any redistribution
|
||||
****************************************************/
|
||||
|
||||
#if ARDUINO >= 100
|
||||
#include "Arduino.h"
|
||||
#else
|
||||
#include "WProgram.h"
|
||||
#endif
|
||||
#include <Wire.h>
|
||||
#include "Adafruit_MCP23008.h"
|
||||
|
||||
|
||||
////////////////////////////////////////////////////////////////////////////////
|
||||
// RTC_DS1307 implementation
|
||||
|
||||
void Adafruit_MCP23008::begin(uint8_t addr) {
|
||||
addr &= 7;
|
||||
|
||||
i2caddr = addr;
|
||||
|
||||
Wire.begin();
|
||||
|
||||
// set defaults!
|
||||
Wire.beginTransmission(MCP23008_ADDRESS | i2caddr);
|
||||
#if ARDUINO >= 100
|
||||
Wire.write((byte)MCP23008_IODIR);
|
||||
Wire.write((byte)0xFF); // all inputs
|
||||
Wire.write((byte)0x00);
|
||||
Wire.write((byte)0x00);
|
||||
Wire.write((byte)0x00);
|
||||
Wire.write((byte)0x00);
|
||||
Wire.write((byte)0x00);
|
||||
Wire.write((byte)0x00);
|
||||
Wire.write((byte)0x00);
|
||||
Wire.write((byte)0x00);
|
||||
Wire.write((byte)0x00);
|
||||
#else
|
||||
Wire.send(MCP23008_IODIR);
|
||||
Wire.send(0xFF); // all inputs
|
||||
Wire.send(0x00);
|
||||
Wire.send(0x00);
|
||||
Wire.send(0x00);
|
||||
Wire.send(0x00);
|
||||
Wire.send(0x00);
|
||||
Wire.send(0x00);
|
||||
Wire.send(0x00);
|
||||
Wire.send(0x00);
|
||||
Wire.send(0x00);
|
||||
#endif
|
||||
Wire.endTransmission();
|
||||
|
||||
}
|
||||
|
||||
void Adafruit_MCP23008::begin(void) {
|
||||
begin(0);
|
||||
}
|
||||
|
||||
void Adafruit_MCP23008::pinMode(uint8_t p, uint8_t d) {
|
||||
uint8_t iodir;
|
||||
|
||||
|
||||
// only 8 bits!
|
||||
if (p > 7)
|
||||
return;
|
||||
|
||||
iodir = read8(MCP23008_IODIR);
|
||||
|
||||
// set the pin and direction
|
||||
if (d == INPUT) {
|
||||
iodir |= 1 << p;
|
||||
} else {
|
||||
iodir &= ~(1 << p);
|
||||
}
|
||||
|
||||
// write the new IODIR
|
||||
write8(MCP23008_IODIR, iodir);
|
||||
}
|
||||
|
||||
uint8_t Adafruit_MCP23008::readGPIO(void) {
|
||||
// read the current GPIO input
|
||||
return read8(MCP23008_GPIO);
|
||||
}
|
||||
|
||||
void Adafruit_MCP23008::writeGPIO(uint8_t gpio) {
|
||||
write8(MCP23008_GPIO, gpio);
|
||||
}
|
||||
|
||||
|
||||
void Adafruit_MCP23008::digitalWrite(uint8_t p, uint8_t d) {
|
||||
uint8_t gpio;
|
||||
|
||||
// only 8 bits!
|
||||
if (p > 7)
|
||||
return;
|
||||
|
||||
// read the current GPIO output latches
|
||||
gpio = readGPIO();
|
||||
|
||||
// set the pin and direction
|
||||
if (d == HIGH) {
|
||||
gpio |= 1 << p;
|
||||
} else {
|
||||
gpio &= ~(1 << p);
|
||||
}
|
||||
|
||||
// write the new GPIO
|
||||
writeGPIO(gpio);
|
||||
}
|
||||
|
||||
void Adafruit_MCP23008::pullUp(uint8_t p, uint8_t d) {
|
||||
uint8_t gppu;
|
||||
|
||||
// only 8 bits!
|
||||
if (p > 7)
|
||||
return;
|
||||
|
||||
gppu = read8(MCP23008_GPPU);
|
||||
// set the pin and direction
|
||||
if (d == HIGH) {
|
||||
gppu |= 1 << p;
|
||||
} else {
|
||||
gppu &= ~(1 << p);
|
||||
}
|
||||
// write the new GPIO
|
||||
write8(MCP23008_GPPU, gppu);
|
||||
}
|
||||
|
||||
uint8_t Adafruit_MCP23008::digitalRead(uint8_t p) {
|
||||
// only 8 bits!
|
||||
if (p > 7)
|
||||
return 0;
|
||||
|
||||
// read the current GPIO
|
||||
return (readGPIO() >> p) & 0x1;
|
||||
}
|
||||
|
||||
uint8_t Adafruit_MCP23008::read8(uint8_t addr) {
|
||||
Wire.beginTransmission(MCP23008_ADDRESS | i2caddr);
|
||||
#if ARDUINO >= 100
|
||||
Wire.write((byte)addr);
|
||||
#else
|
||||
Wire.send(addr);
|
||||
#endif
|
||||
Wire.endTransmission();
|
||||
Wire.requestFrom(MCP23008_ADDRESS | i2caddr, 1);
|
||||
|
||||
#if ARDUINO >= 100
|
||||
return Wire.read();
|
||||
#else
|
||||
return Wire.receive();
|
||||
#endif
|
||||
}
|
||||
|
||||
|
||||
void Adafruit_MCP23008::write8(uint8_t addr, uint8_t data) {
|
||||
Wire.beginTransmission(MCP23008_ADDRESS | i2caddr);
|
||||
#if ARDUINO >= 100
|
||||
Wire.write((byte)addr);
|
||||
Wire.write((byte)data);
|
||||
#else
|
||||
Wire.send(addr);
|
||||
Wire.send(data);
|
||||
#endif
|
||||
Wire.endTransmission();
|
||||
}
|
||||
|
|
@ -0,0 +1,50 @@
|
|||
/***************************************************
|
||||
This is a library for the MCP23008 i2c port expander
|
||||
|
||||
These displays use I2C to communicate, 2 pins are required to
|
||||
interface
|
||||
Adafruit invests time and resources providing this open source code,
|
||||
please support Adafruit and open-source hardware by purchasing
|
||||
products from Adafruit!
|
||||
|
||||
Written by Limor Fried/Ladyada for Adafruit Industries.
|
||||
BSD license, all text above must be included in any redistribution
|
||||
****************************************************/
|
||||
|
||||
#ifndef _ADAFRUIT_MCP23008_H
|
||||
#define _ADAFRUIT_MCP23008_H
|
||||
// Don't forget the Wire library
|
||||
class Adafruit_MCP23008 {
|
||||
public:
|
||||
void begin(uint8_t addr);
|
||||
void begin(void);
|
||||
|
||||
void pinMode(uint8_t p, uint8_t d);
|
||||
void digitalWrite(uint8_t p, uint8_t d);
|
||||
void pullUp(uint8_t p, uint8_t d);
|
||||
uint8_t digitalRead(uint8_t p);
|
||||
uint8_t readGPIO(void);
|
||||
void writeGPIO(uint8_t);
|
||||
|
||||
private:
|
||||
uint8_t i2caddr;
|
||||
uint8_t read8(uint8_t addr);
|
||||
void write8(uint8_t addr, uint8_t data);
|
||||
};
|
||||
|
||||
#define MCP23008_ADDRESS 0x20
|
||||
|
||||
// registers
|
||||
#define MCP23008_IODIR 0x00
|
||||
#define MCP23008_IPOL 0x01
|
||||
#define MCP23008_GPINTEN 0x02
|
||||
#define MCP23008_DEFVAL 0x03
|
||||
#define MCP23008_INTCON 0x04
|
||||
#define MCP23008_IOCON 0x05
|
||||
#define MCP23008_GPPU 0x06
|
||||
#define MCP23008_INTF 0x07
|
||||
#define MCP23008_INTCAP 0x08
|
||||
#define MCP23008_GPIO 0x09
|
||||
#define MCP23008_OLAT 0x0A
|
||||
|
||||
#endif
|
||||
Ładowanie…
Reference in New Issue