kopia lustrzana https://github.com/k3ng/k3ng_cw_keyer
restructured library files
Anthony Good
rodzic
583f47ba72
commit
127e813da5
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@ -0,0 +1,230 @@
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/***************************************************
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This is a library for the MCP23017 i2c port expander
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These displays use I2C to communicate, 2 pins are required to
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interface
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Adafruit invests time and resources providing this open source code,
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please support Adafruit and open-source hardware by purchasing
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||||
products from Adafruit!
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||||
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||||
Written by Limor Fried/Ladyada for Adafruit Industries.
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BSD license, all text above must be included in any redistribution
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****************************************************/
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#include <Wire.h>
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#include <avr/pgmspace.h>
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#include "Adafruit_MCP23017.h"
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#if ARDUINO >= 100
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#include "Arduino.h"
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#else
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#include "WProgram.h"
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#endif
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// minihelper
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static inline void wiresend(uint8_t x) {
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#if ARDUINO >= 100
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Wire.write((uint8_t)x);
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#else
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Wire.send(x);
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#endif
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}
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static inline uint8_t wirerecv(void) {
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#if ARDUINO >= 100
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return Wire.read();
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#else
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return Wire.receive();
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#endif
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}
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////////////////////////////////////////////////////////////////////////////////
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void Adafruit_MCP23017::begin(uint8_t addr) {
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if (addr > 7) {
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addr = 7;
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}
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i2caddr = addr;
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Wire.begin();
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// set defaults!
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Wire.beginTransmission(MCP23017_ADDRESS | i2caddr);
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wiresend(MCP23017_IODIRA);
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wiresend(0xFF); // all inputs on port A
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Wire.endTransmission();
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Wire.beginTransmission(MCP23017_ADDRESS | i2caddr);
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wiresend(MCP23017_IODIRB);
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wiresend(0xFF); // all inputs on port B
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Wire.endTransmission();
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}
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void Adafruit_MCP23017::begin(void) {
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begin(0);
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}
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void Adafruit_MCP23017::pinMode(uint8_t p, uint8_t d) {
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uint8_t iodir;
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uint8_t iodiraddr;
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// only 16 bits!
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if (p > 15)
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return;
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if (p < 8)
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iodiraddr = MCP23017_IODIRA;
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else {
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iodiraddr = MCP23017_IODIRB;
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p -= 8;
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}
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// read the current IODIR
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Wire.beginTransmission(MCP23017_ADDRESS | i2caddr);
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wiresend(iodiraddr);
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Wire.endTransmission();
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Wire.requestFrom(MCP23017_ADDRESS | i2caddr, 1);
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iodir = wirerecv();
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// set the pin and direction
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if (d == INPUT) {
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iodir |= 1 << p;
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} else {
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iodir &= ~(1 << p);
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}
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// write the new IODIR
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Wire.beginTransmission(MCP23017_ADDRESS | i2caddr);
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wiresend(iodiraddr);
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wiresend(iodir);
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Wire.endTransmission();
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}
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uint16_t Adafruit_MCP23017::readGPIOAB() {
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uint16_t ba = 0;
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uint8_t a;
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// read the current GPIO output latches
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Wire.beginTransmission(MCP23017_ADDRESS | i2caddr);
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wiresend(MCP23017_GPIOA);
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Wire.endTransmission();
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Wire.requestFrom(MCP23017_ADDRESS | i2caddr, 2);
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a = wirerecv();
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ba = wirerecv();
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ba <<= 8;
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ba |= a;
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return ba;
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}
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void Adafruit_MCP23017::writeGPIOAB(uint16_t ba) {
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Wire.beginTransmission(MCP23017_ADDRESS | i2caddr);
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wiresend(MCP23017_GPIOA);
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wiresend(ba & 0xFF);
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wiresend(ba >> 8);
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Wire.endTransmission();
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}
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void Adafruit_MCP23017::digitalWrite(uint8_t p, uint8_t d) {
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uint8_t gpio;
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uint8_t gpioaddr, olataddr;
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// only 16 bits!
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if (p > 15)
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return;
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if (p < 8) {
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olataddr = MCP23017_OLATA;
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gpioaddr = MCP23017_GPIOA;
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} else {
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olataddr = MCP23017_OLATB;
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gpioaddr = MCP23017_GPIOB;
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p -= 8;
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}
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// read the current GPIO output latches
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Wire.beginTransmission(MCP23017_ADDRESS | i2caddr);
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wiresend(olataddr);
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Wire.endTransmission();
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Wire.requestFrom(MCP23017_ADDRESS | i2caddr, 1);
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gpio = wirerecv();
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// set the pin and direction
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if (d == HIGH) {
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gpio |= 1 << p;
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} else {
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gpio &= ~(1 << p);
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}
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// write the new GPIO
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Wire.beginTransmission(MCP23017_ADDRESS | i2caddr);
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wiresend(gpioaddr);
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wiresend(gpio);
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Wire.endTransmission();
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}
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void Adafruit_MCP23017::pullUp(uint8_t p, uint8_t d) {
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uint8_t gppu;
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uint8_t gppuaddr;
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// only 16 bits!
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if (p > 15)
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return;
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if (p < 8)
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gppuaddr = MCP23017_GPPUA;
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else {
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gppuaddr = MCP23017_GPPUB;
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p -= 8;
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}
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// read the current pullup resistor set
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Wire.beginTransmission(MCP23017_ADDRESS | i2caddr);
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wiresend(gppuaddr);
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Wire.endTransmission();
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Wire.requestFrom(MCP23017_ADDRESS | i2caddr, 1);
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gppu = wirerecv();
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// set the pin and direction
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if (d == HIGH) {
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gppu |= 1 << p;
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} else {
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gppu &= ~(1 << p);
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}
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// write the new GPIO
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Wire.beginTransmission(MCP23017_ADDRESS | i2caddr);
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wiresend(gppuaddr);
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wiresend(gppu);
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Wire.endTransmission();
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}
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uint8_t Adafruit_MCP23017::digitalRead(uint8_t p) {
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uint8_t gpioaddr;
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// only 16 bits!
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if (p > 15)
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return 0;
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if (p < 8)
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gpioaddr = MCP23017_GPIOA;
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else {
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gpioaddr = MCP23017_GPIOB;
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p -= 8;
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}
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// read the current GPIO
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Wire.beginTransmission(MCP23017_ADDRESS | i2caddr);
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wiresend(gpioaddr);
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Wire.endTransmission();
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Wire.requestFrom(MCP23017_ADDRESS | i2caddr, 1);
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return (wirerecv() >> p) & 0x1;
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}
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@ -0,0 +1,63 @@
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/***************************************************
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This is a library for the MCP23017 i2c port expander
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These displays use I2C to communicate, 2 pins are required to
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interface
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||||
Adafruit invests time and resources providing this open source code,
|
||||
please support Adafruit and open-source hardware by purchasing
|
||||
products from Adafruit!
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||||
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Written by Limor Fried/Ladyada for Adafruit Industries.
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BSD license, all text above must be included in any redistribution
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****************************************************/
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#ifndef _Adafruit_MCP23017_H_
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#define _Adafruit_MCP23017_H_
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// Don't forget the Wire library
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class Adafruit_MCP23017 {
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public:
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void begin(uint8_t addr);
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void begin(void);
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void pinMode(uint8_t p, uint8_t d);
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void digitalWrite(uint8_t p, uint8_t d);
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void pullUp(uint8_t p, uint8_t d);
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uint8_t digitalRead(uint8_t p);
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void writeGPIOAB(uint16_t);
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uint16_t readGPIOAB();
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private:
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uint8_t i2caddr;
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};
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#define MCP23017_ADDRESS 0x20
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// registers
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#define MCP23017_IODIRA 0x00
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#define MCP23017_IPOLA 0x02
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#define MCP23017_GPINTENA 0x04
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#define MCP23017_DEFVALA 0x06
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#define MCP23017_INTCONA 0x08
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#define MCP23017_IOCONA 0x0A
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#define MCP23017_GPPUA 0x0C
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#define MCP23017_INTFA 0x0E
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#define MCP23017_INTCAPA 0x10
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#define MCP23017_GPIOA 0x12
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#define MCP23017_OLATA 0x14
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#define MCP23017_IODIRB 0x01
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#define MCP23017_IPOLB 0x03
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#define MCP23017_GPINTENB 0x05
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#define MCP23017_DEFVALB 0x07
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#define MCP23017_INTCONB 0x09
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#define MCP23017_IOCONB 0x0B
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#define MCP23017_GPPUB 0x0D
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#define MCP23017_INTFB 0x0F
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#define MCP23017_INTCAPB 0x11
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#define MCP23017_GPIOB 0x13
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#define MCP23017_OLATB 0x15
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#endif
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@ -0,0 +1,431 @@
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/***************************************************
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This is a library for the Adafruit RGB 16x2 LCD Shield
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Pick one up at the Adafruit shop!
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---------> http://http://www.adafruit.com/products/714
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The shield uses I2C to communicate, 2 pins are required to
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interface
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Adafruit invests time and resources providing this open source code,
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please support Adafruit and open-source hardware by purchasing
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||||
products from Adafruit!
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||||
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Written by Limor Fried/Ladyada for Adafruit Industries.
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BSD license, all text above must be included in any redistribution
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****************************************************/
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#include "Adafruit_RGBLCDShield.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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#include <Wire.h>
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#if ARDUINO >= 100
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#include "Arduino.h"
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#else
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#include "WProgram.h"
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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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// RGBLCDShield constructor is called).
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Adafruit_RGBLCDShield::Adafruit_RGBLCDShield() {
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_i2cAddr = 0;
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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 = 15;
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_rw_pin = 14;
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_enable_pin = 13;
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_data_pins[0] = 12; // really d4
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_data_pins[1] = 11; // really d5
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_data_pins[2] = 10; // really d6
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_data_pins[3] = 9; // really d7
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_button_pins[0] = 0;
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_button_pins[1] = 1;
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_button_pins[2] = 2;
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_button_pins[3] = 3;
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_button_pins[4] = 4;
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// we can't begin() yet :(
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}
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void Adafruit_RGBLCDShield::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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_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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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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begin(16, 1);
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}
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void Adafruit_RGBLCDShield::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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Wire.begin();
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_i2c.begin();
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_i2c.pinMode(8, OUTPUT);
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_i2c.pinMode(6, OUTPUT);
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_i2c.pinMode(7, OUTPUT);
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setBacklight(0x7);
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if (_rw_pin)
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_i2c.pinMode(_rw_pin, OUTPUT);
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_i2c.pinMode(_rs_pin, OUTPUT);
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_i2c.pinMode(_enable_pin, OUTPUT);
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for (uint8_t i=0; i<4; i++)
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_i2c.pinMode(_data_pins[i], OUTPUT);
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for (uint8_t i=0; i<5; i++) {
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_i2c.pinMode(_button_pins[i], INPUT);
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_i2c.pullUp(_button_pins[i], 1);
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}
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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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|
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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)) {
|
||||
// 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
|
||||
// page 45 figure 23
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||||
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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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||||
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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.
|
||||
command(LCD_FUNCTIONSET | _displayfunction);
|
||||
|
||||
// turn the display on with no cursor or blinking default
|
||||
_displaycontrol = LCD_DISPLAYON | LCD_CURSOROFF | LCD_BLINKOFF;
|
||||
display();
|
||||
|
||||
// clear it off
|
||||
clear();
|
||||
|
||||
// Initialize to default text direction (for romance languages)
|
||||
_displaymode = LCD_ENTRYLEFT | LCD_ENTRYSHIFTDECREMENT;
|
||||
// set the entry mode
|
||||
command(LCD_ENTRYMODESET | _displaymode);
|
||||
|
||||
}
|
||||
|
||||
/********** high level commands, for the user! */
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||||
void Adafruit_RGBLCDShield::clear()
|
||||
{
|
||||
command(LCD_CLEARDISPLAY); // clear display, set cursor position to zero
|
||||
delayMicroseconds(2000); // this command takes a long time!
|
||||
}
|
||||
|
||||
void Adafruit_RGBLCDShield::home()
|
||||
{
|
||||
command(LCD_RETURNHOME); // set cursor position to zero
|
||||
delayMicroseconds(2000); // this command takes a long time!
|
||||
}
|
||||
|
||||
void Adafruit_RGBLCDShield::setCursor(uint8_t col, uint8_t row)
|
||||
{
|
||||
int row_offsets[] = { 0x00, 0x40, 0x14, 0x54 };
|
||||
if ( row > _numlines ) {
|
||||
row = _numlines-1; // we count rows starting w/0
|
||||
}
|
||||
|
||||
command(LCD_SETDDRAMADDR | (col + row_offsets[row]));
|
||||
}
|
||||
|
||||
// Turn the display on/off (quickly)
|
||||
void Adafruit_RGBLCDShield::noDisplay() {
|
||||
_displaycontrol &= ~LCD_DISPLAYON;
|
||||
command(LCD_DISPLAYCONTROL | _displaycontrol);
|
||||
}
|
||||
void Adafruit_RGBLCDShield::display() {
|
||||
_displaycontrol |= LCD_DISPLAYON;
|
||||
command(LCD_DISPLAYCONTROL | _displaycontrol);
|
||||
}
|
||||
|
||||
// Turns the underline cursor on/off
|
||||
void Adafruit_RGBLCDShield::noCursor() {
|
||||
_displaycontrol &= ~LCD_CURSORON;
|
||||
command(LCD_DISPLAYCONTROL | _displaycontrol);
|
||||
}
|
||||
void Adafruit_RGBLCDShield::cursor() {
|
||||
_displaycontrol |= LCD_CURSORON;
|
||||
command(LCD_DISPLAYCONTROL | _displaycontrol);
|
||||
}
|
||||
|
||||
// Turn on and off the blinking cursor
|
||||
void Adafruit_RGBLCDShield::noBlink() {
|
||||
_displaycontrol &= ~LCD_BLINKON;
|
||||
command(LCD_DISPLAYCONTROL | _displaycontrol);
|
||||
}
|
||||
void Adafruit_RGBLCDShield::blink() {
|
||||
_displaycontrol |= LCD_BLINKON;
|
||||
command(LCD_DISPLAYCONTROL | _displaycontrol);
|
||||
}
|
||||
|
||||
// These commands scroll the display without changing the RAM
|
||||
void Adafruit_RGBLCDShield::scrollDisplayLeft(void) {
|
||||
command(LCD_CURSORSHIFT | LCD_DISPLAYMOVE | LCD_MOVELEFT);
|
||||
}
|
||||
void Adafruit_RGBLCDShield::scrollDisplayRight(void) {
|
||||
command(LCD_CURSORSHIFT | LCD_DISPLAYMOVE | LCD_MOVERIGHT);
|
||||
}
|
||||
|
||||
// This is for text that flows Left to Right
|
||||
void Adafruit_RGBLCDShield::leftToRight(void) {
|
||||
_displaymode |= LCD_ENTRYLEFT;
|
||||
command(LCD_ENTRYMODESET | _displaymode);
|
||||
}
|
||||
|
||||
// This is for text that flows Right to Left
|
||||
void Adafruit_RGBLCDShield::rightToLeft(void) {
|
||||
_displaymode &= ~LCD_ENTRYLEFT;
|
||||
command(LCD_ENTRYMODESET | _displaymode);
|
||||
}
|
||||
|
||||
// This will 'right justify' text from the cursor
|
||||
void Adafruit_RGBLCDShield::autoscroll(void) {
|
||||
_displaymode |= LCD_ENTRYSHIFTINCREMENT;
|
||||
command(LCD_ENTRYMODESET | _displaymode);
|
||||
}
|
||||
|
||||
// This will 'left justify' text from the cursor
|
||||
void Adafruit_RGBLCDShield::noAutoscroll(void) {
|
||||
_displaymode &= ~LCD_ENTRYSHIFTINCREMENT;
|
||||
command(LCD_ENTRYMODESET | _displaymode);
|
||||
}
|
||||
|
||||
// Allows us to fill the first 8 CGRAM locations
|
||||
// with custom characters
|
||||
void Adafruit_RGBLCDShield::createChar(uint8_t location, uint8_t charmap[]) {
|
||||
location &= 0x7; // we only have 8 locations 0-7
|
||||
command(LCD_SETCGRAMADDR | (location << 3));
|
||||
for (int i=0; i<8; i++) {
|
||||
write(charmap[i]);
|
||||
}
|
||||
command(LCD_SETDDRAMADDR); // unfortunately resets the location to 0,0
|
||||
}
|
||||
|
||||
/*********** mid level commands, for sending data/cmds */
|
||||
|
||||
inline void Adafruit_RGBLCDShield::command(uint8_t value) {
|
||||
send(value, LOW);
|
||||
}
|
||||
|
||||
#if ARDUINO >= 100
|
||||
inline size_t Adafruit_RGBLCDShield::write(uint8_t value) {
|
||||
send(value, HIGH);
|
||||
return 1;
|
||||
}
|
||||
#else
|
||||
inline void Adafruit_RGBLCDShield::write(uint8_t value) {
|
||||
send(value, HIGH);
|
||||
}
|
||||
#endif
|
||||
|
||||
/************ low level data pushing commands **********/
|
||||
|
||||
// little wrapper for i/o writes
|
||||
void Adafruit_RGBLCDShield::_digitalWrite(uint8_t p, uint8_t d) {
|
||||
if (_i2cAddr != 255) {
|
||||
// an i2c command
|
||||
_i2c.digitalWrite(p, d);
|
||||
} else {
|
||||
// straightup IO
|
||||
digitalWrite(p, d);
|
||||
}
|
||||
}
|
||||
|
||||
// Allows to set the backlight, if the LCD backpack is used
|
||||
void Adafruit_RGBLCDShield::setBacklight(uint8_t status) {
|
||||
// check if i2c or SPI
|
||||
_i2c.digitalWrite(8, ~(status >> 2) & 0x1);
|
||||
_i2c.digitalWrite(7, ~(status >> 1) & 0x1);
|
||||
_i2c.digitalWrite(6, ~status & 0x1);
|
||||
}
|
||||
|
||||
// little wrapper for i/o directions
|
||||
void Adafruit_RGBLCDShield::_pinMode(uint8_t p, uint8_t d) {
|
||||
if (_i2cAddr != 255) {
|
||||
// an i2c command
|
||||
_i2c.pinMode(p, d);
|
||||
} else {
|
||||
// straightup IO
|
||||
pinMode(p, d);
|
||||
}
|
||||
}
|
||||
|
||||
// write either command or data, with automatic 4/8-bit selection
|
||||
void Adafruit_RGBLCDShield::send(uint8_t value, uint8_t mode) {
|
||||
_digitalWrite(_rs_pin, mode);
|
||||
|
||||
// if there is a RW pin indicated, set it low to Write
|
||||
if (_rw_pin != 255) {
|
||||
_digitalWrite(_rw_pin, LOW);
|
||||
}
|
||||
|
||||
if (_displayfunction & LCD_8BITMODE) {
|
||||
write8bits(value);
|
||||
} else {
|
||||
write4bits(value>>4);
|
||||
write4bits(value);
|
||||
}
|
||||
}
|
||||
|
||||
void Adafruit_RGBLCDShield::pulseEnable(void) {
|
||||
_digitalWrite(_enable_pin, LOW);
|
||||
delayMicroseconds(1);
|
||||
_digitalWrite(_enable_pin, HIGH);
|
||||
delayMicroseconds(1); // enable pulse must be >450ns
|
||||
_digitalWrite(_enable_pin, LOW);
|
||||
delayMicroseconds(100); // commands need > 37us to settle
|
||||
}
|
||||
|
||||
void Adafruit_RGBLCDShield::write4bits(uint8_t value) {
|
||||
if (_i2cAddr != 255) {
|
||||
uint16_t out = 0;
|
||||
|
||||
out = _i2c.readGPIOAB();
|
||||
|
||||
// speed up for i2c since its sluggish
|
||||
for (int i = 0; i < 4; i++) {
|
||||
out &= ~_BV(_data_pins[i]);
|
||||
out |= ((value >> i) & 0x1) << _data_pins[i];
|
||||
}
|
||||
|
||||
// make sure enable is low
|
||||
out &= ~ _BV(_enable_pin);
|
||||
|
||||
_i2c.writeGPIOAB(out);
|
||||
|
||||
// pulse enable
|
||||
delayMicroseconds(1);
|
||||
out |= _BV(_enable_pin);
|
||||
_i2c.writeGPIOAB(out);
|
||||
delayMicroseconds(1);
|
||||
out &= ~_BV(_enable_pin);
|
||||
_i2c.writeGPIOAB(out);
|
||||
delayMicroseconds(100);
|
||||
|
||||
} else {
|
||||
for (int i = 0; i < 4; i++) {
|
||||
_pinMode(_data_pins[i], OUTPUT);
|
||||
_digitalWrite(_data_pins[i], (value >> i) & 0x01);
|
||||
}
|
||||
pulseEnable();
|
||||
}
|
||||
}
|
||||
|
||||
void Adafruit_RGBLCDShield::write8bits(uint8_t value) {
|
||||
for (int i = 0; i < 8; i++) {
|
||||
_pinMode(_data_pins[i], OUTPUT);
|
||||
_digitalWrite(_data_pins[i], (value >> i) & 0x01);
|
||||
}
|
||||
|
||||
pulseEnable();
|
||||
}
|
||||
|
||||
uint8_t Adafruit_RGBLCDShield::readButtons(void) {
|
||||
uint8_t reply = 0x1F;
|
||||
|
||||
for (uint8_t i=0; i<5; i++) {
|
||||
reply &= ~((_i2c.digitalRead(_button_pins[i])) << i);
|
||||
}
|
||||
return reply;
|
||||
}
|
||||
|
|
@ -0,0 +1,132 @@
|
|||
/***************************************************
|
||||
This is a library for the Adafruit RGB 16x2 LCD Shield
|
||||
Pick one up at the Adafruit shop!
|
||||
---------> http://http://www.adafruit.com/products/714
|
||||
|
||||
The shield uses 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_RGBLCDShield_h
|
||||
#define Adafruit_RGBLCDShield_h
|
||||
|
||||
#include <inttypes.h>
|
||||
#include "Print.h"
|
||||
#include <Adafruit_MCP23017.h>
|
||||
|
||||
// commands
|
||||
#define LCD_CLEARDISPLAY 0x01
|
||||
#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
|
||||
|
||||
#define BUTTON_UP 0x08
|
||||
#define BUTTON_DOWN 0x04
|
||||
#define BUTTON_LEFT 0x10
|
||||
#define BUTTON_RIGHT 0x02
|
||||
#define BUTTON_SELECT 0x01
|
||||
|
||||
|
||||
class Adafruit_RGBLCDShield : public Print {
|
||||
public:
|
||||
Adafruit_RGBLCDShield();
|
||||
|
||||
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);
|
||||
uint8_t readButtons();
|
||||
|
||||
private:
|
||||
void send(uint8_t, uint8_t);
|
||||
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 _button_pins[5];
|
||||
uint8_t _displayfunction;
|
||||
uint8_t _displaycontrol;
|
||||
uint8_t _displaymode;
|
||||
|
||||
uint8_t _initialized;
|
||||
|
||||
uint8_t _numlines,_currline;
|
||||
|
||||
uint8_t _i2cAddr;
|
||||
Adafruit_MCP23017 _i2c;
|
||||
};
|
||||
|
||||
#endif
|
||||
Ładowanie…
Reference in New Issue