arduino/esp8266
1
0
Fork 0
mirror of https://github.com/esp8266/Arduino.git synced 2025-07-30 16:24:09 +03:00
Code Activity

Moving libraries out from inside targets and creating bootloaders directory.

Browse Source
This commit is contained in:
David A. Mellis
2007-10-06 13:04:46 +00:00
parent db1f041ce1
commit 7413c79c7d
36 changed files with 0 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

50
hardware/libraries/EEPROM/EEPROM.cpp Executable file
View File

@ -0,0 +1,50 @@
/*
EEPROM.cpp - EEPROM library
Copyright (c) 2006 David A. Mellis. All right reserved.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
/******************************************************************************
* Includes
******************************************************************************/
#include <avr/eeprom.h>
#include "WConstants.h"
#include "EEPROM.h"
/******************************************************************************
* Definitions
******************************************************************************/
/******************************************************************************
* Constructors
******************************************************************************/
/******************************************************************************
* User API
******************************************************************************/
uint8_t EEPROMClass::read(int address)
{
return eeprom_read_byte((unsigned char *) address);
}
void EEPROMClass::write(int address, uint8_t value)
{
eeprom_write_byte((unsigned char *) address, value);
}
EEPROMClass EEPROM;

35
hardware/libraries/EEPROM/EEPROM.h Executable file
View File

@ -0,0 +1,35 @@
/*
EEPROM.h - EEPROM library
Copyright (c) 2006 David A. Mellis. All right reserved.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef EEPROM_h
#define EEPROM_h
#include <inttypes.h>
class EEPROMClass
{
public:
uint8_t read(int);
void write(int, uint8_t);
};
extern EEPROMClass EEPROM;
#endif

21
hardware/libraries/EEPROM/examples/eeprom_clear/eeprom_clear.pde Normal file
View File

@ -0,0 +1,21 @@
/*
* EEPROM Clear
*
* Sets all of the bytes of the EEPROM to 0.
*/
#include <EEPROM.h>
void setup()
{
// write a 0 to all 512 bytes of the EEPROM
for (int i = 0; i < 512; i++)
EEPROM.write(i, 0);
// turn the LED on when we're done
digitalWrite(13, HIGH);
}
void loop()
{
}

38
hardware/libraries/EEPROM/examples/eeprom_read/eeprom_read.pde Normal file
View File

@ -0,0 +1,38 @@
/*
* EEPROM Read
*
* Reads the value of each byte of the EEPROM and prints it
* to the computer.
*/
#include <EEPROM.h>
// start reading from the first byte (address 0) of the EEPROM
int address = 0;
byte value;
void setup()
{
Serial.begin(9600);
}
void loop()
{
// read a byte from the current address of the EEPROM
value = EEPROM.read(address);
Serial.print(address);
Serial.print("\t");
Serial.print(value, DEC);
Serial.println();
// advance to the next address of the EEPROM
address = address + 1;
// there are only 512 bytes of EEPROM, from 0 to 511, so if we're
// on address 512, wrap around to address 0
if (address == 512)
address = 0;
delay(500);
}

38
hardware/libraries/EEPROM/examples/eeprom_write/eeprom_write.pde Normal file
View File

@ -0,0 +1,38 @@
/*
* EEPROM Write
*
* Stores values read from analog input 0 into the EEPROM.
* These values will stay in the EEPROM when the board is
* turned off and may be retrieved later by another sketch.
*/
#include <EEPROM.h>
// the current address in the EEPROM (i.e. which byte
// we're going to write to next)
int addr = 0;
void setup()
{
}
void loop()
{
// need to divide by 4 because analog inputs range from
// 0 to 1023 and each byte of the EEPROM can only hold a
// value from 0 to 255.
int val = analogRead(0) / 4;
// write the value to the appropriate byte of the EEPROM.
// these values will remain there when the board is
// turned off.
EEPROM.write(addr, val);
// advance to the next address. there are 512 bytes in
// the EEPROM, so go back to 0 when we hit 512.
addr = addr + 1;
if (addr == 512)
addr = 0;
delay(100);
}

18
hardware/libraries/EEPROM/keywords.txt Normal file
View File

@ -0,0 +1,18 @@
#######################################
# Syntax Coloring Map For Ultrasound
#######################################
#######################################
# Datatypes (KEYWORD1)
#######################################
EEPROM KEYWORD1
#######################################
# Methods and Functions (KEYWORD2)
#######################################
#######################################
# Constants (LITERAL1)
#######################################

128
hardware/libraries/Firmata/Firmata.cpp Normal file
View File

@ -0,0 +1,128 @@
/*
Firmata.cpp - Firmata library
Copyright (c) 2007 Free Software Foundation. All right reserved.
Written by Hans-Christoph Steiner <hans@at.or.at>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
//******************************************************************************
//* Includes
//******************************************************************************
extern "C" {
// AVR LibC Includes
#include <inttypes.h>
#include <stdlib.h>
// Wiring Core Includes
#include "WConstants.h"
}
#include "Firmata.h"
#include "EEPROM.h"
#include "HardwareSerial.h"
//******************************************************************************
//* Definitions
//******************************************************************************
//******************************************************************************
//* Constructors
//******************************************************************************
FirmataClass::FirmataClass()
{
// TODO: init serial here
// TODO: printVersion
}
//******************************************************************************
//* Private Methods
//******************************************************************************
// resets the system state upon a SYSTEM_RESET message from the host software
void FirmataClass::systemReset(void)
{
// TODO automatically call this in response to SYSTEM_RESET
// TODO reset EEPROM to 0 here
}
//******************************************************************************
//* Public Methods
//******************************************************************************
// output type of message that is next on the queue
int FirmataClass::available(void)
{
// TODO output next available message type, or -1 if nothing
}
// output the protocol version message to the serial port
void FirmataClass::printVersion() {
Serial.print(REPORT_VERSION, BYTE);
Serial.print(FIRMATA_MINOR_VERSION, BYTE);
Serial.print(FIRMATA_MAJOR_VERSION, BYTE);
}
// send an analog message
void FirmataClass::sendAnalog(int pin, int value)
{
// pin can only be 0-15, so chop higher bits
Serial.print(ANALOG_MESSAGE | (pin & 0xF), BYTE);
Serial.print(value % 128, BYTE);
Serial.print(value >> 7, BYTE);
}
// send a single digital pin in a digital message
void FirmataClass::sendDigital(int pin, int value)
{
// TODO add single pin digital messages to the protocol
}
// send 14-bits in a single digital message
void FirmataClass::sendDigitalPortPair(int port, int value)
{
// TODO: the digital message should not be sent on the serial port every
// time sendDigital() is called. Instead, it should add it to an int
// which will be sent on a schedule. If a pin changes more than once
// before the digital message is sent on the serial port, it should send a
// digital message for each change.
// TODO: some math needs to happen for pin > 14 since MIDI channels are used
Serial.print(DIGITAL_MESSAGE | (port & 0xF),BYTE);
Serial.print(value % 128, BYTE); // Tx pins 0-6
Serial.print(value >> 7, BYTE); // Tx pins 7-13
}
// Internal Actions/////////////////////////////////////////////////////////////
void FirmataClass::loadState(void)
{
// TODO load state from EEPROM
}
void FirmataClass::saveState(void)
{
// TODO save state to EEPROM
}
void FirmataClass::resetState(void)
{
// TODO reset state bytes in EEPROM
}
// make one instance for the user to use
FirmataClass Firmata;

95
hardware/libraries/Firmata/Firmata.h Normal file
View File

@ -0,0 +1,95 @@
/*
Firmata.h - Firmata library
Copyright (c) 2007 Free Software Foundation. All right reserved.
Written by Hans-Christoph Steiner <hans@at.or.at>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef Firmata_h
#define Firmata_h
#include <inttypes.h>
class FirmataClass
{
private:
void systemReset(void);
public:
FirmataClass();
int available(void);
// serial receive actions
// send serial messages
void printVersion(void);
void sendAnalog(int, int);
void sendDigital(int, int);
void sendDigitalPortPair(int, int);
// internal actions
void loadState(void);
void saveState(void);
void resetState(void);
};
extern FirmataClass Firmata;
/*==============================================================================
* MACROS
*============================================================================*/
/* Version numbers for the protocol. The protocol is still changing, so these
* version numbers are important. This number can be queried so that host
* software can test whether it will be compatible with the currently
* installed firmware. */
#define FIRMATA_MAJOR_VERSION 1 // for non-compatible changes
#define FIRMATA_MINOR_VERSION 0 // for backwards compatible changes
// total number of pins currently supported
#define TOTAL_ANALOG_PINS 6
#define TOTAL_DIGITAL_PINS 14
// for comparing along with INPUT and OUTPUT
#define PWM 2
// for selecting digital inputs
#define PB 2 // digital input, pins 8-13
#define PC 3 // analog input port
#define PD 4 // digital input, pins 0-7
#define MAX_DATA_BYTES 2 // max number of data bytes in non-SysEx messages
// message command bytes
#define DIGITAL_MESSAGE 0x90 // send data for a digital pin
#define ANALOG_MESSAGE 0xE0 // send data for an analog pin (or PWM)
//#define PULSE_MESSAGE 0xA0 // proposed pulseIn/Out message (SysEx)
//#define SHIFTOUT_MESSAGE 0xB0 // proposed shiftOut message (SysEx)
#define REPORT_ANALOG_PIN 0xC0 // enable analog input by pin #
#define REPORT_DIGITAL_PORTS 0xD0 // enable digital input by port pair
#define START_SYSEX 0xF0 // start a MIDI SysEx message
#define SET_DIGITAL_PIN_MODE 0xF4 // set a digital pin to INPUT or OUTPUT
#define END_SYSEX 0xF7 // end a MIDI SysEx message
#define REPORT_VERSION 0xF9 // report firmware version
#define SYSTEM_RESET 0xFF // reset from MIDI
// these are used for EEPROM reading and writing
#define ANALOGINPUTSTOREPORT_LOW_BYTE 0x1F0 // analogInputsToReport is an int
#define ANALOGINPUTSTOREPORT_HIGH_BYTE 0x1F1 // analogInputsToReport is an int
#define REPORTDIGITALINPUTS_BYTE 0x1F2 //
#define DIGITALPINSTATUS_LOW_BYTE 0x1F3 // digitalPinStatus is an int
#define DIGITALPINSTATUS_HIGH_BYTE 0x1F4 // digitalPinStatus is an int
#define PWMSTATUS_LOW_BYTE 0x1F5 // pwmStatus is an int
#define PWMSTATUS_HIGH_BYTE 0x1F6 // pwmStatus is an int
#endif /* Firmata_h */

18
hardware/libraries/Firmata/keywords.txt Normal file
View File

@ -0,0 +1,18 @@
#######################################
# Syntax Coloring Map For Firmata
#######################################
#######################################
# Datatypes (KEYWORD1)
#######################################
Firmata KEYWORD1
#######################################
# Methods and Functions (KEYWORD2)
#######################################
#######################################
# Constants (LITERAL1)
#######################################

229
hardware/libraries/Matrix/Matrix.cpp Executable file
View File

@ -0,0 +1,229 @@
/*
Matrix.cpp - Max7219 LED Matrix library for Arduino & Wiring
Copyright (c) 2006 Nicholas Zambetti. All right reserved.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
// TODO: Support segment displays in api?
// TODO: Support varying vendor layouts?
/******************************************************************************
* Includes
******************************************************************************/
extern "C" {
// AVR LibC Includes
#include <inttypes.h>
#include <stdlib.h>
// Wiring Core Includes
#undef abs
#include "WConstants.h"
// Wiring Core Prototypes
//void pinMode(uint8_t, uint8_t);
//void digitalWrite(int, uint8_t);
}
#include "Sprite.h"
#include "Matrix.h"
/******************************************************************************
* Definitions
******************************************************************************/
// Matrix registers
#define REG_NOOP 0x00
#define REG_DIGIT0 0x01
#define REG_DIGIT1 0x02
#define REG_DIGIT2 0x03
#define REG_DIGIT3 0x04
#define REG_DIGIT4 0x05
#define REG_DIGIT5 0x06
#define REG_DIGIT6 0x07
#define REG_DIGIT7 0x08
#define REG_DECODEMODE 0x09
#define REG_INTENSITY 0x0A
#define REG_SCANLIMIT 0x0B
#define REG_SHUTDOWN 0x0C
#define REG_DISPLAYTEST 0x0F
/******************************************************************************
* Constructors
******************************************************************************/
Matrix::Matrix(uint8_t data, uint8_t clock, uint8_t load, uint8_t screens /* = 1 */)
{
// record pins for sw spi
_pinData = data;
_pinClock = clock;
_pinLoad = load;
// set ddr for sw spi pins
pinMode(_pinClock, OUTPUT);
pinMode(_pinData, OUTPUT);
pinMode(_pinLoad, OUTPUT);
// allocate screenbuffers
_screens = screens;
_buffer = (uint8_t*)calloc(_screens, 64);
_maximumX = (_screens * 8);
// initialize registers
clear(); // clear display
setScanLimit(0x07); // use all rows/digits
setBrightness(0x0F); // maximum brightness
setRegister(REG_SHUTDOWN, 0x01); // normal operation
setRegister(REG_DECODEMODE, 0x00); // pixels not integers
setRegister(REG_DISPLAYTEST, 0x00); // not in test mode
}
/******************************************************************************
* MAX7219 SPI
******************************************************************************/
// sends a single byte by sw spi (no latching)
void Matrix::putByte(uint8_t data)
{
uint8_t i = 8;
uint8_t mask;
while(i > 0) {
mask = 0x01 << (i - 1); // get bitmask
digitalWrite(_pinClock, LOW); // tick
if (data & mask){ // choose bit
digitalWrite(_pinData, HIGH); // set 1
}else{
digitalWrite(_pinData, LOW); // set 0
}
digitalWrite(_pinClock, HIGH); // tock
--i; // move to lesser bit
}
}
// sets register to a byte value for all screens
void Matrix::setRegister(uint8_t reg, uint8_t data)
{
digitalWrite(_pinLoad, HIGH); // begin
for(uint8_t i = 0; i < _screens; ++i){
putByte(reg); // specify register
putByte(data); // send data
}
digitalWrite(_pinLoad, LOW); // latch in data
digitalWrite(_pinLoad, HIGH); // end
}
// syncs row of display with buffer
void Matrix::syncRow(uint8_t row)
{
if (!_buffer) return;
// uint8_t's can't be negative, so don't test for negative row
if (row >= 8) return;
digitalWrite(_pinLoad, HIGH); // begin
for(uint8_t i = 0; i < _screens; ++i){
putByte(8 - row); // specify register
putByte(_buffer[row + (8 * i)]); // send data
}
digitalWrite(_pinLoad, LOW); // latch in data
digitalWrite(_pinLoad, HIGH); // end
}
/******************************************************************************
* MAX7219 Configuration
******************************************************************************/
// sets how many digits are displayed
void Matrix::setScanLimit(uint8_t value)
{
setRegister(REG_SCANLIMIT, value & 0x07);
}
// sets brightness of the display
void Matrix::setBrightness(uint8_t value)
{
setRegister(REG_INTENSITY, value & 0x0F);
}
/******************************************************************************
* Helper Functions
******************************************************************************/
void Matrix::buffer(uint8_t x, uint8_t y, uint8_t value)
{
if (!_buffer) return;
// uint8_t's can't be negative, so don't test for negative x and y.
if (x >= _maximumX || y >= 8) return;
uint8_t offset = x; // record x
x %= 8; // make x relative to a single matrix
offset -= x; // calculate buffer offset
// wrap shift relative x for nexus module layout
if (x == 0){
x = 8;
}
--x;
// record value in buffer
if(value){
_buffer[y + offset] |= 0x01 << x;
}else{
_buffer[y + offset] &= ~(0x01 << x);
}
}
/******************************************************************************
* User API
******************************************************************************/
// buffers and writes to screen
void Matrix::write(uint8_t x, uint8_t y, uint8_t value)
{
buffer(x, y, value);
// update affected row
syncRow(y);
}
void Matrix::write(uint8_t x, uint8_t y, Sprite sprite)
{
for (uint8_t i = 0; i < sprite.height(); i++){
for (uint8_t j = 0; j < sprite.width(); j++)
buffer(x + j, y + i, sprite.read(j, i));
syncRow(y + i);
}
}
// clears screens and buffers
void Matrix::clear(void)
{
if (!_buffer) return;
// clear buffer
for(uint8_t i = 0; i < 8; ++i){
for(uint8_t j = 0; j < _screens; ++j){
_buffer[i + (8 * j)] = 0x00;
}
}
// clear registers
for(uint8_t i = 0; i < 8; ++i){
syncRow(i);
}
}

54
hardware/libraries/Matrix/Matrix.h Executable file
View File

@ -0,0 +1,54 @@
/*
Matrix.h - Max7219 LED Matrix library for Arduino & Wiring
Copyright (c) 2006 Nicholas Zambetti. All right reserved.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef Matrix_h
#define Matrix_h
#include <inttypes.h>
class Sprite;
class Matrix
{
private:
uint8_t _pinData;
uint8_t _pinClock;
uint8_t _pinLoad;
uint8_t* _buffer;
uint8_t _screens;
uint8_t _maximumX;
void putByte(uint8_t);
void setRegister(uint8_t, uint8_t);
void syncRow(uint8_t);
void setScanLimit(uint8_t);
void buffer(uint8_t, uint8_t, uint8_t);
public:
Matrix(uint8_t, uint8_t, uint8_t, uint8_t = 1);
void setBrightness(uint8_t);
void write(uint8_t, uint8_t, uint8_t);
void write(uint8_t, uint8_t, Sprite);
void clear(void);
};
#endif

39
hardware/libraries/Matrix/examples/hello_matrix/hello_matrix.pde Normal file
View File

@ -0,0 +1,39 @@
// Hello Matrix
// by Nicholas Zambetti <http://www.zambetti.com>
// Demonstrates the use of the Matrix library
// For MAX7219 LED Matrix Controllers
// Blinks welcoming face on screen
// Created 13 February 2006
/* create a new Matrix instance
pin 0: data (din)
pin 1: load (load)
pin 2: clock (clk)
*/
Matrix myMatrix = Matrix(0, 2, 1);
void setup()
{
}
void loop()
{
myMatrix.clear(); // clear display
delay(1000);
// turn some pixels on
myMatrix.write(1, 5, HIGH);
myMatrix.write(2, 2, HIGH);
myMatrix.write(2, 6, HIGH);
myMatrix.write(3, 6, HIGH);
myMatrix.write(4, 6, HIGH);
myMatrix.write(5, 2, HIGH);
myMatrix.write(5, 6, HIGH);
myMatrix.write(6, 5, HIGH);
delay(1000);
}

45
hardware/libraries/Matrix/examples/sprite_animation/sprite_animation.pde Normal file
View File

@ -0,0 +1,45 @@
// Sprite Animation
// by Nicholas Zambetti <http://www.zambetti.com>
// Demonstrates the use of the Matrix & Sprite libraries
// Displays animated waveform graphic on screen
// Created 29 March 2006
/* create a new Matrix instance
pin 0: data (din)
pin 1: load (load)
pin 2: clock (clk)
*/
Matrix myMatrix = Matrix(0, 2, 1);
/* create a new Sprite instance
8 pixels wide, 4 pixels tall
*/
Sprite wave = Sprite(
8, 4,
B00011000,
B00100100,
B01000010,
B10000001
);
void setup()
{
}
int x = 0;
void loop()
{
myMatrix.write(x, 2, wave); // place sprite on screen
myMatrix.write(x - 8, 2, wave); // place sprite again, elsewhere on screen
delay(75); // wait a little bit
myMatrix.clear(); // clear the screen for next animation frame
if(x == 8) // if reached end of animation sequence
{
x = 0; // start from beginning
}
x++; // advance x coordinate to the right
}

22
hardware/libraries/Matrix/keywords.txt Normal file
View File

@ -0,0 +1,22 @@
#######################################
# Syntax Coloring Map For Matrix
#######################################
#######################################
# Datatypes (KEYWORD1)
#######################################
Matrix KEYWORD1
#######################################
# Methods and Functions (KEYWORD2)
#######################################
setBrightness KEYWORD2
write KEYWORD2
clear KEYWORD2
#######################################
# Constants (LITERAL1)
#######################################

227
hardware/libraries/SoftwareSerial/SoftwareSerial.cpp Executable file
View File

@ -0,0 +1,227 @@
/*
SoftwareSerial.cpp - Software serial library
Copyright (c) 2006 David A. Mellis. All right reserved.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
/******************************************************************************
* Includes
******************************************************************************/
#include "WConstants.h"
#include "SoftwareSerial.h"
/******************************************************************************
* Definitions
******************************************************************************/
/******************************************************************************
* Constructors
******************************************************************************/
SoftwareSerial::SoftwareSerial(uint8_t receivePin, uint8_t transmitPin)
{
_receivePin = receivePin;
_transmitPin = transmitPin;
_baudRate = 0;
}
/******************************************************************************
* User API
******************************************************************************/
void SoftwareSerial::begin(long speed)
{
_baudRate = speed;
_bitPeriod = 1000000 / _baudRate;
digitalWrite(_transmitPin, HIGH);
delayMicroseconds( _bitPeriod); // if we were low this establishes the end
}
int SoftwareSerial::read()
{
int val = 0;
int bitDelay = _bitPeriod - clockCyclesToMicroseconds(50);
// one byte of serial data (LSB first)
// ...--\ /--\/--\/--\/--\/--\/--\/--\/--\/--...
// \--/\--/\--/\--/\--/\--/\--/\--/\--/
// start 0 1 2 3 4 5 6 7 stop
while (digitalRead(_receivePin));
// confirm that this is a real start bit, not line noise
if (digitalRead(_receivePin) == LOW) {
// frame start indicated by a falling edge and low start bit
// jump to the middle of the low start bit
delayMicroseconds(bitDelay / 2 - clockCyclesToMicroseconds(50));
// offset of the bit in the byte: from 0 (LSB) to 7 (MSB)
for (int offset = 0; offset < 8; offset++) {
// jump to middle of next bit
delayMicroseconds(bitDelay);
// read bit
val |= digitalRead(_receivePin) << offset;
}
delayMicroseconds(_bitPeriod);
return val;
}
return -1;
}
void SoftwareSerial::print(uint8_t b)
{
if (_baudRate == 0)
return;
int bitDelay = _bitPeriod - clockCyclesToMicroseconds(50); // a digitalWrite is about 50 cycles
byte mask;
digitalWrite(_transmitPin, LOW);
delayMicroseconds(bitDelay);
for (mask = 0x01; mask; mask <<= 1) {
if (b & mask){ // choose bit
digitalWrite(_transmitPin,HIGH); // send 1
}
else{
digitalWrite(_transmitPin,LOW); // send 1
}
delayMicroseconds(bitDelay);
}
digitalWrite(_transmitPin, HIGH);
delayMicroseconds(bitDelay);
}
void SoftwareSerial::print(const char *s)
{
while (*s)
print(*s++);
}
void SoftwareSerial::print(char c)
{
print((uint8_t) c);
}
void SoftwareSerial::print(int n)
{
print((long) n);
}
void SoftwareSerial::print(unsigned int n)
{
print((unsigned long) n);
}
void SoftwareSerial::print(long n)
{
if (n < 0) {
print('-');
n = -n;
}
printNumber(n, 10);
}
void SoftwareSerial::print(unsigned long n)
{
printNumber(n, 10);
}
void SoftwareSerial::print(long n, int base)
{
if (base == 0)
print((char) n);
else if (base == 10)
print(n);
else
printNumber(n, base);
}
void SoftwareSerial::println(void)
{
print('\r');
print('\n');
}
void SoftwareSerial::println(char c)
{
print(c);
println();
}
void SoftwareSerial::println(const char c[])
{
print(c);
println();
}
void SoftwareSerial::println(uint8_t b)
{
print(b);
println();
}
void SoftwareSerial::println(int n)
{
print(n);
println();
}
void SoftwareSerial::println(long n)
{
print(n);
println();
}
void SoftwareSerial::println(unsigned long n)
{
print(n);
println();
}
void SoftwareSerial::println(long n, int base)
{
print(n, base);
println();
}
// Private Methods /////////////////////////////////////////////////////////////
void SoftwareSerial::printNumber(unsigned long n, uint8_t base)
{
unsigned char buf[8 * sizeof(long)]; // Assumes 8-bit chars.
unsigned long i = 0;
if (n == 0) {
print('0');
return;
}
while (n > 0) {
buf[i++] = n % base;
n /= base;
}
for (; i > 0; i--)
print((char) (buf[i - 1] < 10 ? '0' + buf[i - 1] : 'A' + buf[i - 1] - 10));
}

56
hardware/libraries/SoftwareSerial/SoftwareSerial.h Executable file
View File

@ -0,0 +1,56 @@
/*
SoftwareSerial.h - Software serial library
Copyright (c) 2006 David A. Mellis. All right reserved.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef SoftwareSerial_h
#define SoftwareSerial_h
#include <inttypes.h>
class SoftwareSerial
{
private:
uint8_t _receivePin;
uint8_t _transmitPin;
long _baudRate;
int _bitPeriod;
void printNumber(unsigned long, uint8_t);
public:
SoftwareSerial(uint8_t, uint8_t);
void begin(long);
int read();
void print(char);
void print(const char[]);
void print(uint8_t);
void print(int);
void print(unsigned int);
void print(long);
void print(unsigned long);
void print(long, int);
void println(void);
void println(char);
void println(const char[]);
void println(uint8_t);
void println(int);
void println(long);
void println(unsigned long);
void println(long, int);
};
#endif

18
hardware/libraries/SoftwareSerial/keywords.txt Normal file
View File

@ -0,0 +1,18 @@
#######################################
# Syntax Coloring Map For Ultrasound
#######################################
#######################################
# Datatypes (KEYWORD1)
#######################################
SoftwareSerial KEYWORD1
#######################################
# Methods and Functions (KEYWORD2)
#######################################
#######################################
# Constants (LITERAL1)
#######################################

95
hardware/libraries/Sprite/Sprite.cpp Normal file
View File

@ -0,0 +1,95 @@
/*
Sprite.cpp - 2D sprite buffer library for Arduino & Wiring
Copyright (c) 2006 David A. Mellis. All right reserved.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <stdlib.h>
#include <stdarg.h>
//#include <stdio.h>
#include "Sprite.h"
void Sprite::init(uint8_t width, uint8_t height)
{
_width = width >= 8 ? 8 : width;
_height = height >= 8 ? 8 : height;
// for now, do nothing if this allocation fails. methods that require it
// should silently fail if _buffer is null.
_buffer = (uint8_t *) calloc(_height, 1);
}
Sprite::Sprite(uint8_t width, uint8_t height)
{
init(width, height);
}
Sprite::Sprite(uint8_t width, uint8_t height, uint8_t row, ...)
{
init(width, height);
if (!_buffer) return;
va_list ap;
va_start(ap, row);
int y = 0;
for (y = 0; ; y++) {
for (int x = 0; x < width && x < 8; x++)
write(x, y, (row >> (width - x - 1)) & 0x01);
if (y == height - 1)
break;
row = va_arg(ap, int); // using '...' promotes uint8_t to int
}
va_end(ap);
}
uint8_t Sprite::width() const
{
return _width;
}
uint8_t Sprite::height() const
{
return _height;
}
void Sprite::write(uint8_t x, uint8_t y, uint8_t value)
{
if (!_buffer) return;
// uint8_t's can't be negative, so don't test for negative x and y.
if (x >= _width || y >= _height) return;
// we need to bitwise-or the value of the other pixels in the byte with
// the new value, masked and shifted into the proper bits.
_buffer[y] = (_buffer[y] & ~(0x01 << x)) | ((value & 0x01) << x);
}
uint8_t Sprite::read(uint8_t x, uint8_t y) const
{
if (!_buffer) return 0;
// uint8_t's can't be negative, so don't test for negative x and y.
if (x >= _width || y >= _height) return 0;
return (_buffer[y] >> x) & 0x01;
}

48
hardware/libraries/Sprite/Sprite.h Normal file
View File

@ -0,0 +1,48 @@
/*
Sprite.cpp - 2D sprite buffers library for Arduino & Wiring
Copyright (c) 2006 David A. Mellis. All right reserved.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef Sprite_h
#define Sprite_h
#include <inttypes.h>
#include "binary.h"
class Sprite
{
private:
uint8_t _width;
uint8_t _height;
uint8_t _depth;
uint8_t _ppb;
uint8_t _bpr;
uint8_t _mask;
uint8_t *_buffer;
void init(uint8_t width, uint8_t height);
public:
Sprite(uint8_t width, uint8_t height);
Sprite(uint8_t width, uint8_t height, uint8_t row, ...);
uint8_t width() const;
uint8_t height() const;
void write(uint8_t x, uint8_t y, uint8_t value);
uint8_t read(uint8_t x, uint8_t y) const;
};
#endif

515
hardware/libraries/Sprite/binary.h Normal file
View File

@ -0,0 +1,515 @@
#ifndef Binary_h
#define Binary_h
#define B0 0
#define B00 0
#define B000 0
#define B0000 0
#define B00000 0
#define B000000 0
#define B0000000 0
#define B00000000 0
#define B1 1
#define B01 1
#define B001 1
#define B0001 1
#define B00001 1
#define B000001 1
#define B0000001 1
#define B00000001 1
#define B10 2
#define B010 2
#define B0010 2
#define B00010 2
#define B000010 2
#define B0000010 2
#define B00000010 2
#define B11 3
#define B011 3
#define B0011 3
#define B00011 3
#define B000011 3
#define B0000011 3
#define B00000011 3
#define B100 4
#define B0100 4
#define B00100 4
#define B000100 4
#define B0000100 4
#define B00000100 4
#define B101 5
#define B0101 5
#define B00101 5
#define B000101 5
#define B0000101 5
#define B00000101 5
#define B110 6
#define B0110 6
#define B00110 6
#define B000110 6
#define B0000110 6
#define B00000110 6
#define B111 7
#define B0111 7
#define B00111 7
#define B000111 7
#define B0000111 7
#define B00000111 7
#define B1000 8
#define B01000 8
#define B001000 8
#define B0001000 8
#define B00001000 8
#define B1001 9
#define B01001 9
#define B001001 9
#define B0001001 9
#define B00001001 9
#define B1010 10
#define B01010 10
#define B001010 10
#define B0001010 10
#define B00001010 10
#define B1011 11
#define B01011 11
#define B001011 11
#define B0001011 11
#define B00001011 11
#define B1100 12
#define B01100 12
#define B001100 12
#define B0001100 12
#define B00001100 12
#define B1101 13
#define B01101 13
#define B001101 13
#define B0001101 13
#define B00001101 13
#define B1110 14
#define B01110 14
#define B001110 14
#define B0001110 14
#define B00001110 14
#define B1111 15
#define B01111 15
#define B001111 15
#define B0001111 15
#define B00001111 15
#define B10000 16
#define B010000 16
#define B0010000 16
#define B00010000 16
#define B10001 17
#define B010001 17
#define B0010001 17
#define B00010001 17
#define B10010 18
#define B010010 18
#define B0010010 18
#define B00010010 18
#define B10011 19
#define B010011 19
#define B0010011 19
#define B00010011 19
#define B10100 20
#define B010100 20
#define B0010100 20
#define B00010100 20
#define B10101 21
#define B010101 21
#define B0010101 21
#define B00010101 21
#define B10110 22
#define B010110 22
#define B0010110 22
#define B00010110 22
#define B10111 23
#define B010111 23
#define B0010111 23
#define B00010111 23
#define B11000 24
#define B011000 24
#define B0011000 24
#define B00011000 24
#define B11001 25
#define B011001 25
#define B0011001 25
#define B00011001 25
#define B11010 26
#define B011010 26
#define B0011010 26
#define B00011010 26
#define B11011 27
#define B011011 27
#define B0011011 27
#define B00011011 27
#define B11100 28
#define B011100 28
#define B0011100 28
#define B00011100 28
#define B11101 29
#define B011101 29
#define B0011101 29
#define B00011101 29
#define B11110 30
#define B011110 30
#define B0011110 30
#define B00011110 30
#define B11111 31
#define B011111 31
#define B0011111 31
#define B00011111 31
#define B100000 32
#define B0100000 32
#define B00100000 32
#define B100001 33
#define B0100001 33
#define B00100001 33
#define B100010 34
#define B0100010 34
#define B00100010 34
#define B100011 35
#define B0100011 35
#define B00100011 35
#define B100100 36
#define B0100100 36
#define B00100100 36
#define B100101 37
#define B0100101 37
#define B00100101 37
#define B100110 38
#define B0100110 38
#define B00100110 38
#define B100111 39
#define B0100111 39
#define B00100111 39
#define B101000 40
#define B0101000 40
#define B00101000 40
#define B101001 41
#define B0101001 41
#define B00101001 41
#define B101010 42
#define B0101010 42
#define B00101010 42
#define B101011 43
#define B0101011 43
#define B00101011 43
#define B101100 44
#define B0101100 44
#define B00101100 44
#define B101101 45
#define B0101101 45
#define B00101101 45
#define B101110 46
#define B0101110 46
#define B00101110 46
#define B101111 47
#define B0101111 47
#define B00101111 47
#define B110000 48
#define B0110000 48
#define B00110000 48
#define B110001 49
#define B0110001 49
#define B00110001 49
#define B110010 50
#define B0110010 50
#define B00110010 50
#define B110011 51
#define B0110011 51
#define B00110011 51
#define B110100 52
#define B0110100 52
#define B00110100 52
#define B110101 53
#define B0110101 53
#define B00110101 53
#define B110110 54
#define B0110110 54
#define B00110110 54
#define B110111 55
#define B0110111 55
#define B00110111 55
#define B111000 56
#define B0111000 56
#define B00111000 56
#define B111001 57
#define B0111001 57
#define B00111001 57
#define B111010 58
#define B0111010 58
#define B00111010 58
#define B111011 59
#define B0111011 59
#define B00111011 59
#define B111100 60
#define B0111100 60
#define B00111100 60
#define B111101 61
#define B0111101 61
#define B00111101 61
#define B111110 62
#define B0111110 62
#define B00111110 62
#define B111111 63
#define B0111111 63
#define B00111111 63
#define B1000000 64
#define B01000000 64
#define B1000001 65
#define B01000001 65
#define B1000010 66
#define B01000010 66
#define B1000011 67
#define B01000011 67
#define B1000100 68
#define B01000100 68
#define B1000101 69
#define B01000101 69
#define B1000110 70
#define B01000110 70
#define B1000111 71
#define B01000111 71
#define B1001000 72
#define B01001000 72
#define B1001001 73
#define B01001001 73
#define B1001010 74
#define B01001010 74
#define B1001011 75
#define B01001011 75
#define B1001100 76
#define B01001100 76
#define B1001101 77
#define B01001101 77
#define B1001110 78
#define B01001110 78
#define B1001111 79
#define B01001111 79
#define B1010000 80
#define B01010000 80
#define B1010001 81
#define B01010001 81
#define B1010010 82
#define B01010010 82
#define B1010011 83
#define B01010011 83
#define B1010100 84
#define B01010100 84
#define B1010101 85
#define B01010101 85
#define B1010110 86
#define B01010110 86
#define B1010111 87
#define B01010111 87
#define B1011000 88
#define B01011000 88
#define B1011001 89
#define B01011001 89
#define B1011010 90
#define B01011010 90
#define B1011011 91
#define B01011011 91
#define B1011100 92
#define B01011100 92
#define B1011101 93
#define B01011101 93
#define B1011110 94
#define B01011110 94
#define B1011111 95
#define B01011111 95
#define B1100000 96
#define B01100000 96
#define B1100001 97
#define B01100001 97
#define B1100010 98
#define B01100010 98
#define B1100011 99
#define B01100011 99
#define B1100100 100
#define B01100100 100
#define B1100101 101
#define B01100101 101
#define B1100110 102
#define B01100110 102
#define B1100111 103
#define B01100111 103
#define B1101000 104
#define B01101000 104
#define B1101001 105
#define B01101001 105
#define B1101010 106
#define B01101010 106
#define B1101011 107
#define B01101011 107
#define B1101100 108
#define B01101100 108
#define B1101101 109
#define B01101101 109
#define B1101110 110
#define B01101110 110
#define B1101111 111
#define B01101111 111
#define B1110000 112
#define B01110000 112
#define B1110001 113
#define B01110001 113
#define B1110010 114
#define B01110010 114
#define B1110011 115
#define B01110011 115
#define B1110100 116
#define B01110100 116
#define B1110101 117
#define B01110101 117
#define B1110110 118
#define B01110110 118
#define B1110111 119
#define B01110111 119
#define B1111000 120
#define B01111000 120
#define B1111001 121
#define B01111001 121
#define B1111010 122
#define B01111010 122
#define B1111011 123
#define B01111011 123
#define B1111100 124
#define B01111100 124
#define B1111101 125
#define B01111101 125
#define B1111110 126
#define B01111110 126
#define B1111111 127
#define B01111111 127
#define B10000000 128
#define B10000001 129
#define B10000010 130
#define B10000011 131
#define B10000100 132
#define B10000101 133
#define B10000110 134
#define B10000111 135
#define B10001000 136
#define B10001001 137
#define B10001010 138
#define B10001011 139
#define B10001100 140
#define B10001101 141
#define B10001110 142
#define B10001111 143
#define B10010000 144
#define B10010001 145
#define B10010010 146
#define B10010011 147
#define B10010100 148
#define B10010101 149
#define B10010110 150
#define B10010111 151
#define B10011000 152
#define B10011001 153
#define B10011010 154
#define B10011011 155
#define B10011100 156
#define B10011101 157
#define B10011110 158
#define B10011111 159
#define B10100000 160
#define B10100001 161
#define B10100010 162
#define B10100011 163
#define B10100100 164
#define B10100101 165
#define B10100110 166
#define B10100111 167
#define B10101000 168
#define B10101001 169
#define B10101010 170
#define B10101011 171
#define B10101100 172
#define B10101101 173
#define B10101110 174
#define B10101111 175
#define B10110000 176
#define B10110001 177
#define B10110010 178
#define B10110011 179
#define B10110100 180
#define B10110101 181
#define B10110110 182
#define B10110111 183
#define B10111000 184
#define B10111001 185
#define B10111010 186
#define B10111011 187
#define B10111100 188
#define B10111101 189
#define B10111110 190
#define B10111111 191
#define B11000000 192
#define B11000001 193
#define B11000010 194
#define B11000011 195
#define B11000100 196
#define B11000101 197
#define B11000110 198
#define B11000111 199
#define B11001000 200
#define B11001001 201
#define B11001010 202
#define B11001011 203
#define B11001100 204
#define B11001101 205
#define B11001110 206
#define B11001111 207
#define B11010000 208
#define B11010001 209
#define B11010010 210
#define B11010011 211
#define B11010100 212
#define B11010101 213
#define B11010110 214
#define B11010111 215
#define B11011000 216
#define B11011001 217
#define B11011010 218
#define B11011011 219
#define B11011100 220
#define B11011101 221
#define B11011110 222
#define B11011111 223
#define B11100000 224
#define B11100001 225
#define B11100010 226
#define B11100011 227
#define B11100100 228
#define B11100101 229
#define B11100110 230
#define B11100111 231
#define B11101000 232
#define B11101001 233
#define B11101010 234
#define B11101011 235
#define B11101100 236
#define B11101101 237
#define B11101110 238
#define B11101111 239
#define B11110000 240
#define B11110001 241
#define B11110010 242
#define B11110011 243
#define B11110100 244
#define B11110101 245
#define B11110110 246
#define B11110111 247
#define B11111000 248
#define B11111001 249
#define B11111010 250
#define B11111011 251
#define B11111100 252
#define B11111101 253
#define B11111110 254
#define B11111111 255
#endif

534
hardware/libraries/Sprite/keywords.txt Normal file
View File

@ -0,0 +1,534 @@
#######################################
# Syntax Coloring Map For Sprite
#######################################
#######################################
# Datatypes (KEYWORD1)
#######################################
Sprite KEYWORD1
#######################################
# Methods and Functions (KEYWORD2)
#######################################
width KEYWORD2
height KEYWORD2
write KEYWORD2
read KEYWORD2
#######################################
# Constants (LITERAL1)
#######################################
B0 LITERAL1
B00 LITERAL1
B000 LITERAL1
B0000 LITERAL1
B00000 LITERAL1
B000000 LITERAL1
B0000000 LITERAL1
B00000000 LITERAL1
B1 LITERAL1
B01 LITERAL1
B001 LITERAL1
B0001 LITERAL1
B00001 LITERAL1
B000001 LITERAL1
B0000001 LITERAL1
B00000001 LITERAL1
B10 LITERAL1
B010 LITERAL1
B0010 LITERAL1
B00010 LITERAL1
B000010 LITERAL1
B0000010 LITERAL1
B00000010 LITERAL1
B11 LITERAL1
B011 LITERAL1
B0011 LITERAL1
B00011 LITERAL1
B000011 LITERAL1
B0000011 LITERAL1
B00000011 LITERAL1
B100 LITERAL1
B0100 LITERAL1
B00100 LITERAL1
B000100 LITERAL1
B0000100 LITERAL1
B00000100 LITERAL1
B101 LITERAL1
B0101 LITERAL1
B00101 LITERAL1
B000101 LITERAL1
B0000101 LITERAL1
B00000101 LITERAL1
B110 LITERAL1
B0110 LITERAL1
B00110 LITERAL1
B000110 LITERAL1
B0000110 LITERAL1
B00000110 LITERAL1
B111 LITERAL1
B0111 LITERAL1
B00111 LITERAL1
B000111 LITERAL1
B0000111 LITERAL1
B00000111 LITERAL1
B1000 LITERAL1
B01000 LITERAL1
B001000 LITERAL1
B0001000 LITERAL1
B00001000 LITERAL1
B1001 LITERAL1
B01001 LITERAL1
B001001 LITERAL1
B0001001 LITERAL1
B00001001 LITERAL1
B1010 LITERAL1
B01010 LITERAL1
B001010 LITERAL1
B0001010 LITERAL1
B00001010 LITERAL1
B1011 LITERAL1
B01011 LITERAL1
B001011 LITERAL1
B0001011 LITERAL1
B00001011 LITERAL1
B1100 LITERAL1
B01100 LITERAL1
B001100 LITERAL1
B0001100 LITERAL1
B00001100 LITERAL1
B1101 LITERAL1
B01101 LITERAL1
B001101 LITERAL1
B0001101 LITERAL1
B00001101 LITERAL1
B1110 LITERAL1
B01110 LITERAL1
B001110 LITERAL1
B0001110 LITERAL1
B00001110 LITERAL1
B1111 LITERAL1
B01111 LITERAL1
B001111 LITERAL1
B0001111 LITERAL1
B00001111 LITERAL1
B10000 LITERAL1
B010000 LITERAL1
B0010000 LITERAL1
B00010000 LITERAL1
B10001 LITERAL1
B010001 LITERAL1
B0010001 LITERAL1
B00010001 LITERAL1
B10010 LITERAL1
B010010 LITERAL1
B0010010 LITERAL1
B00010010 LITERAL1
B10011 LITERAL1
B010011 LITERAL1
B0010011 LITERAL1
B00010011 LITERAL1
B10100 LITERAL1
B010100 LITERAL1
B0010100 LITERAL1
B00010100 LITERAL1
B10101 LITERAL1
B010101 LITERAL1
B0010101 LITERAL1
B00010101 LITERAL1
B10110 LITERAL1
B010110 LITERAL1
B0010110 LITERAL1
B00010110 LITERAL1
B10111 LITERAL1
B010111 LITERAL1
B0010111 LITERAL1
B00010111 LITERAL1
B11000 LITERAL1
B011000 LITERAL1
B0011000 LITERAL1
B00011000 LITERAL1
B11001 LITERAL1
B011001 LITERAL1
B0011001 LITERAL1
B00011001 LITERAL1
B11010 LITERAL1
B011010 LITERAL1
B0011010 LITERAL1
B00011010 LITERAL1
B11011 LITERAL1
B011011 LITERAL1
B0011011 LITERAL1
B00011011 LITERAL1
B11100 LITERAL1
B011100 LITERAL1
B0011100 LITERAL1
B00011100 LITERAL1
B11101 LITERAL1
B011101 LITERAL1
B0011101 LITERAL1
B00011101 LITERAL1
B11110 LITERAL1
B011110 LITERAL1
B0011110 LITERAL1
B00011110 LITERAL1
B11111 LITERAL1
B011111 LITERAL1
B0011111 LITERAL1
B00011111 LITERAL1
B100000 LITERAL1
B0100000 LITERAL1
B00100000 LITERAL1
B100001 LITERAL1
B0100001 LITERAL1
B00100001 LITERAL1
B100010 LITERAL1
B0100010 LITERAL1
B00100010 LITERAL1
B100011 LITERAL1
B0100011 LITERAL1
B00100011 LITERAL1
B100100 LITERAL1
B0100100 LITERAL1
B00100100 LITERAL1
B100101 LITERAL1
B0100101 LITERAL1
B00100101 LITERAL1
B100110 LITERAL1
B0100110 LITERAL1
B00100110 LITERAL1
B100111 LITERAL1
B0100111 LITERAL1
B00100111 LITERAL1
B101000 LITERAL1
B0101000 LITERAL1
B00101000 LITERAL1
B101001 LITERAL1
B0101001 LITERAL1
B00101001 LITERAL1
B101010 LITERAL1
B0101010 LITERAL1
B00101010 LITERAL1
B101011 LITERAL1
B0101011 LITERAL1
B00101011 LITERAL1
B101100 LITERAL1
B0101100 LITERAL1
B00101100 LITERAL1
B101101 LITERAL1
B0101101 LITERAL1
B00101101 LITERAL1
B101110 LITERAL1
B0101110 LITERAL1
B00101110 LITERAL1
B101111 LITERAL1
B0101111 LITERAL1
B00101111 LITERAL1
B110000 LITERAL1
B0110000 LITERAL1
B00110000 LITERAL1
B110001 LITERAL1
B0110001 LITERAL1
B00110001 LITERAL1
B110010 LITERAL1
B0110010 LITERAL1
B00110010 LITERAL1
B110011 LITERAL1
B0110011 LITERAL1
B00110011 LITERAL1
B110100 LITERAL1
B0110100 LITERAL1
B00110100 LITERAL1
B110101 LITERAL1
B0110101 LITERAL1
B00110101 LITERAL1
B110110 LITERAL1
B0110110 LITERAL1
B00110110 LITERAL1
B110111 LITERAL1
B0110111 LITERAL1
B00110111 LITERAL1
B111000 LITERAL1
B0111000 LITERAL1
B00111000 LITERAL1
B111001 LITERAL1
B0111001 LITERAL1
B00111001 LITERAL1
B111010 LITERAL1
B0111010 LITERAL1
B00111010 LITERAL1
B111011 LITERAL1
B0111011 LITERAL1
B00111011 LITERAL1
B111100 LITERAL1
B0111100 LITERAL1
B00111100 LITERAL1
B111101 LITERAL1
B0111101 LITERAL1
B00111101 LITERAL1
B111110 LITERAL1
B0111110 LITERAL1
B00111110 LITERAL1
B111111 LITERAL1
B0111111 LITERAL1
B00111111 LITERAL1
B1000000 LITERAL1
B01000000 LITERAL1
B1000001 LITERAL1
B01000001 LITERAL1
B1000010 LITERAL1
B01000010 LITERAL1
B1000011 LITERAL1
B01000011 LITERAL1
B1000100 LITERAL1
B01000100 LITERAL1
B1000101 LITERAL1
B01000101 LITERAL1
B1000110 LITERAL1
B01000110 LITERAL1
B1000111 LITERAL1
B01000111 LITERAL1
B1001000 LITERAL1
B01001000 LITERAL1
B1001001 LITERAL1
B01001001 LITERAL1
B1001010 LITERAL1
B01001010 LITERAL1
B1001011 LITERAL1
B01001011 LITERAL1
B1001100 LITERAL1
B01001100 LITERAL1
B1001101 LITERAL1
B01001101 LITERAL1
B1001110 LITERAL1
B01001110 LITERAL1
B1001111 LITERAL1
B01001111 LITERAL1
B1010000 LITERAL1
B01010000 LITERAL1
B1010001 LITERAL1
B01010001 LITERAL1
B1010010 LITERAL1
B01010010 LITERAL1
B1010011 LITERAL1
B01010011 LITERAL1
B1010100 LITERAL1
B01010100 LITERAL1
B1010101 LITERAL1
B01010101 LITERAL1
B1010110 LITERAL1
B01010110 LITERAL1
B1010111 LITERAL1
B01010111 LITERAL1
B1011000 LITERAL1
B01011000 LITERAL1
B1011001 LITERAL1
B01011001 LITERAL1
B1011010 LITERAL1
B01011010 LITERAL1
B1011011 LITERAL1
B01011011 LITERAL1
B1011100 LITERAL1
B01011100 LITERAL1
B1011101 LITERAL1
B01011101 LITERAL1
B1011110 LITERAL1
B01011110 LITERAL1
B1011111 LITERAL1
B01011111 LITERAL1
B1100000 LITERAL1
B01100000 LITERAL1
B1100001 LITERAL1
B01100001 LITERAL1
B1100010 LITERAL1
B01100010 LITERAL1
B1100011 LITERAL1
B01100011 LITERAL1
B1100100 LITERAL1
B01100100 LITERAL1
B1100101 LITERAL1
B01100101 LITERAL1
B1100110 LITERAL1
B01100110 LITERAL1
B1100111 LITERAL1
B01100111 LITERAL1
B1101000 LITERAL1
B01101000 LITERAL1
B1101001 LITERAL1
B01101001 LITERAL1
B1101010 LITERAL1
B01101010 LITERAL1
B1101011 LITERAL1
B01101011 LITERAL1
B1101100 LITERAL1
B01101100 LITERAL1
B1101101 LITERAL1
B01101101 LITERAL1
B1101110 LITERAL1
B01101110 LITERAL1
B1101111 LITERAL1
B01101111 LITERAL1
B1110000 LITERAL1
B01110000 LITERAL1
B1110001 LITERAL1
B01110001 LITERAL1
B1110010 LITERAL1
B01110010 LITERAL1
B1110011 LITERAL1
B01110011 LITERAL1
B1110100 LITERAL1
B01110100 LITERAL1
B1110101 LITERAL1
B01110101 LITERAL1
B1110110 LITERAL1
B01110110 LITERAL1
B1110111 LITERAL1
B01110111 LITERAL1
B1111000 LITERAL1
B01111000 LITERAL1
B1111001 LITERAL1
B01111001 LITERAL1
B1111010 LITERAL1
B01111010 LITERAL1
B1111011 LITERAL1
B01111011 LITERAL1
B1111100 LITERAL1
B01111100 LITERAL1
B1111101 LITERAL1
B01111101 LITERAL1
B1111110 LITERAL1
B01111110 LITERAL1
B1111111 LITERAL1
B01111111 LITERAL1
B10000000 LITERAL1
B10000001 LITERAL1
B10000010 LITERAL1
B10000011 LITERAL1
B10000100 LITERAL1
B10000101 LITERAL1
B10000110 LITERAL1
B10000111 LITERAL1
B10001000 LITERAL1
B10001001 LITERAL1
B10001010 LITERAL1
B10001011 LITERAL1
B10001100 LITERAL1
B10001101 LITERAL1
B10001110 LITERAL1
B10001111 LITERAL1
B10010000 LITERAL1
B10010001 LITERAL1
B10010010 LITERAL1
B10010011 LITERAL1
B10010100 LITERAL1
B10010101 LITERAL1
B10010110 LITERAL1
B10010111 LITERAL1
B10011000 LITERAL1
B10011001 LITERAL1
B10011010 LITERAL1
B10011011 LITERAL1
B10011100 LITERAL1
B10011101 LITERAL1
B10011110 LITERAL1
B10011111 LITERAL1
B10100000 LITERAL1
B10100001 LITERAL1
B10100010 LITERAL1
B10100011 LITERAL1
B10100100 LITERAL1
B10100101 LITERAL1
B10100110 LITERAL1
B10100111 LITERAL1
B10101000 LITERAL1
B10101001 LITERAL1
B10101010 LITERAL1
B10101011 LITERAL1
B10101100 LITERAL1
B10101101 LITERAL1
B10101110 LITERAL1
B10101111 LITERAL1
B10110000 LITERAL1
B10110001 LITERAL1
B10110010 LITERAL1
B10110011 LITERAL1
B10110100 LITERAL1
B10110101 LITERAL1
B10110110 LITERAL1
B10110111 LITERAL1
B10111000 LITERAL1
B10111001 LITERAL1
B10111010 LITERAL1
B10111011 LITERAL1
B10111100 LITERAL1
B10111101 LITERAL1
B10111110 LITERAL1
B10111111 LITERAL1
B11000000 LITERAL1
B11000001 LITERAL1
B11000010 LITERAL1
B11000011 LITERAL1
B11000100 LITERAL1
B11000101 LITERAL1
B11000110 LITERAL1
B11000111 LITERAL1
B11001000 LITERAL1
B11001001 LITERAL1
B11001010 LITERAL1
B11001011 LITERAL1
B11001100 LITERAL1
B11001101 LITERAL1
B11001110 LITERAL1
B11001111 LITERAL1
B11010000 LITERAL1
B11010001 LITERAL1
B11010010 LITERAL1
B11010011 LITERAL1
B11010100 LITERAL1
B11010101 LITERAL1
B11010110 LITERAL1
B11010111 LITERAL1
B11011000 LITERAL1
B11011001 LITERAL1
B11011010 LITERAL1
B11011011 LITERAL1
B11011100 LITERAL1
B11011101 LITERAL1
B11011110 LITERAL1
B11011111 LITERAL1
B11100000 LITERAL1
B11100001 LITERAL1
B11100010 LITERAL1
B11100011 LITERAL1
B11100100 LITERAL1
B11100101 LITERAL1
B11100110 LITERAL1
B11100111 LITERAL1
B11101000 LITERAL1
B11101001 LITERAL1
B11101010 LITERAL1
B11101011 LITERAL1
B11101100 LITERAL1
B11101101 LITERAL1
B11101110 LITERAL1
B11101111 LITERAL1
B11110000 LITERAL1
B11110001 LITERAL1
B11110010 LITERAL1
B11110011 LITERAL1
B11110100 LITERAL1
B11110101 LITERAL1
B11110110 LITERAL1
B11110111 LITERAL1
B11111000 LITERAL1
B11111001 LITERAL1
B11111010 LITERAL1
B11111011 LITERAL1
B11111100 LITERAL1
B11111101 LITERAL1
B11111110 LITERAL1
B11111111 LITERAL1

220
hardware/libraries/Stepper/Stepper.cpp Normal file
View File

@ -0,0 +1,220 @@
/*
Stepper.cpp - - Stepper library for Wiring/Arduino - Version 0.4
Original library (0.1) by Tom Igoe.
Two-wire modifications (0.2) by Sebastian Gassner
Combination version (0.3) by Tom Igoe and David Mellis
Bug fix for four-wire (0.4) by Tom Igoe, bug fix from Noah Shibley
Drives a unipolar or bipolar stepper motor using 2 wires or 4 wires
When wiring multiple stepper motors to a microcontroller,
you quickly run out of output pins, with each motor requiring 4 connections.
By making use of the fact that at any time two of the four motor
coils are the inverse of the other two, the number of
control connections can be reduced from 4 to 2.
A slightly modified circuit around a Darlington transistor array or an L293 H-bridge
connects to only 2 microcontroler pins, inverts the signals received,
and delivers the 4 (2 plus 2 inverted ones) output signals required
for driving a stepper motor.
The sequence of control signals for 4 control wires is as follows:
Step C0 C1 C2 C3
1 1 0 1 0
2 0 1 1 0
3 0 1 0 1
4 1 0 0 1
The sequence of controls signals for 2 control wires is as follows
(columns C1 and C2 from above):
Step C0 C1
1 0 1
2 1 1
3 1 0
4 0 0
The circuits can be found at
http://www.arduino.cc/en/Tutorial/Stepper
*/
#include "WProgram.h"
#include "Stepper.h"
/*
* two-wire constructor.
* Sets which wires should control the motor.
*/
Stepper::Stepper(int number_of_steps, int motor_pin_1, int motor_pin_2)
{
this->step_number = 0; // which step the motor is on
this->speed = 0; // the motor speed, in revolutions per minute
this->direction = 0; // motor direction
this->last_step_time = 0; // time stamp in ms of the last step taken
this->number_of_steps = number_of_steps; // total number of steps for this motor
// Arduino pins for the motor control connection:
this->motor_pin_1 = motor_pin_1;
this->motor_pin_2 = motor_pin_2;
// setup the pins on the microcontroller:
pinMode(this->motor_pin_1, OUTPUT);
pinMode(this->motor_pin_2, OUTPUT);
// When there are only 2 pins, set the other two to 0:
this->motor_pin_3 = 0;
this->motor_pin_4 = 0;
// pin_count is used by the stepMotor() method:
this->pin_count = 2;
}
/*
* constructor for four-pin version
* Sets which wires should control the motor.
*/
Stepper::Stepper(int number_of_steps, int motor_pin_1, int motor_pin_2, int motor_pin_3, int motor_pin_4)
{
this->step_number = 0; // which step the motor is on
this->speed = 0; // the motor speed, in revolutions per minute
this->direction = 0; // motor direction
this->last_step_time = 0; // time stamp in ms of the last step taken
this->number_of_steps = number_of_steps; // total number of steps for this motor
// Arduino pins for the motor control connection:
this->motor_pin_1 = motor_pin_1;
this->motor_pin_2 = motor_pin_2;
this->motor_pin_3 = motor_pin_3;
this->motor_pin_4 = motor_pin_4;
// setup the pins on the microcontroller:
pinMode(this->motor_pin_1, OUTPUT);
pinMode(this->motor_pin_2, OUTPUT);
pinMode(this->motor_pin_3, OUTPUT);
pinMode(this->motor_pin_4, OUTPUT);
// pin_count is used by the stepMotor() method:
this->pin_count = 4;
}
/*
Sets the speed in revs per minute
*/
void Stepper::setSpeed(long whatSpeed)
{
this->step_delay = 60L * 1000L / this->number_of_steps / whatSpeed;
}
/*
Moves the motor steps_to_move steps. If the number is negative,
the motor moves in the reverse direction.
*/
void Stepper::step(int steps_to_move)
{
int steps_left = abs(steps_to_move); // how many steps to take
// determine direction based on whether steps_to_mode is + or -:
if (steps_to_move > 0) {this->direction = 1;}
if (steps_to_move < 0) {this->direction = 0;}
// decrement the number of steps, moving one step each time:
while(steps_left > 0) {
// move only if the appropriate delay has passed:
if (millis() - this->last_step_time >= this->step_delay) {
// step the motor to step number 0, 1, 2, or 3:
stepMotor(this->step_number % 4);
// get the timeStamp of when you stepped:
this->last_step_time = millis();
// increment or decrement the step number,
// depending on direction:
if (this->direction == 1) {
this->step_number++;
if (this->step_number == this->number_of_steps) {
this->step_number = 0;
}
}
else {
if (this->step_number == 0) {
this->step_number = this->number_of_steps;
}
this->step_number--;
}
// decrement the steps left:
steps_left--;
}
}
}
/*
* Moves the motor forward or backwards.
*/
void Stepper::stepMotor(int thisStep)
{
if (this->pin_count == 2) {
switch (thisStep) {
case 0: /* 01 */
digitalWrite(motor_pin_1, LOW);
digitalWrite(motor_pin_2, HIGH);
break;
case 1: /* 11 */
digitalWrite(motor_pin_1, HIGH);
digitalWrite(motor_pin_2, HIGH);
break;
case 2: /* 10 */
digitalWrite(motor_pin_1, HIGH);
digitalWrite(motor_pin_2, LOW);
break;
case 3: /* 00 */
digitalWrite(motor_pin_1, LOW);
digitalWrite(motor_pin_2, LOW);
break;
}
}
if (this->pin_count == 4) {
switch (thisStep) {
case 0: // 1010
digitalWrite(motor_pin_1, HIGH);
digitalWrite(motor_pin_2, LOW);
digitalWrite(motor_pin_3, HIGH);
digitalWrite(motor_pin_4, LOW);
break;
case 1: // 0110
digitalWrite(motor_pin_1, LOW);
digitalWrite(motor_pin_2, HIGH);
digitalWrite(motor_pin_3, HIGH);
digitalWrite(motor_pin_4, LOW);
break;
case 2: //0101
digitalWrite(motor_pin_1, LOW);
digitalWrite(motor_pin_2, HIGH);
digitalWrite(motor_pin_3, LOW);
digitalWrite(motor_pin_4, HIGH);
break;
case 3: //1001
digitalWrite(motor_pin_1, HIGH);
digitalWrite(motor_pin_2, LOW);
digitalWrite(motor_pin_3, LOW);
digitalWrite(motor_pin_4, HIGH);
break;
}
}
}
/*
version() returns the version of the library:
*/
int Stepper::version(void)
{
return 4;
}

86
hardware/libraries/Stepper/Stepper.h Normal file
View File

@ -0,0 +1,86 @@
/*
Stepper.h - - Stepper library for Wiring/Arduino - Version 0.4
Original library (0.1) by Tom Igoe.
Two-wire modifications (0.2) by Sebastian Gassner
Combination version (0.3) by Tom Igoe and David Mellis
Bug fix for four-wire (0.4) by Tom Igoe, bug fix from Noah Shibley
Drives a unipolar or bipolar stepper motor using 2 wires or 4 wires
When wiring multiple stepper motors to a microcontroller,
you quickly run out of output pins, with each motor requiring 4 connections.
By making use of the fact that at any time two of the four motor
coils are the inverse of the other two, the number of
control connections can be reduced from 4 to 2.
A slightly modified circuit around a Darlington transistor array or an L293 H-bridge
connects to only 2 microcontroler pins, inverts the signals received,
and delivers the 4 (2 plus 2 inverted ones) output signals required
for driving a stepper motor.
The sequence of control signals for 4 control wires is as follows:
Step C0 C1 C2 C3
1 1 0 1 0
2 0 1 1 0
3 0 1 0 1
4 1 0 0 1
The sequence of controls signals for 2 control wires is as follows
(columns C1 and C2 from above):
Step C0 C1
1 0 1
2 1 1
3 1 0
4 0 0
The circuits can be found at
http://www.arduino.cc/en/Tutorial/Stepper
*/
// ensure this library description is only included once
#ifndef Stepper_h
#define Stepper_h
// include types & constants of Wiring core API
#include "WConstants.h"
// library interface description
class Stepper {
public:
// constructors:
Stepper(int number_of_steps, int motor_pin_1, int motor_pin_2);
Stepper(int number_of_steps, int motor_pin_1, int motor_pin_2, int motor_pin_3, int motor_pin_4);
// speed setter method:
void setSpeed(long whatSpeed);
// mover method:
void step(int number_of_steps);
int version(void);
private:
void stepMotor(int this_step);
int direction; // Direction of rotation
int speed; // Speed in RPMs
unsigned long step_delay; // delay between steps, in ms, based on speed
int number_of_steps; // total number of steps this motor can take
int pin_count; // whether you're driving the motor with 2 or 4 pins
int step_number; // which step the motor is on
// motor pin numbers:
int motor_pin_1;
int motor_pin_2;
int motor_pin_3;
int motor_pin_4;
long last_step_time; // time stamp in ms of when the last step was taken
};
#endif

40
hardware/libraries/Stepper/examples/MotorKnob/MotorKnob.pde Normal file
View File

@ -0,0 +1,40 @@
/*
* MotorKnob
*
* A stepper motor follows the turns of a potentiometer
* (or other sensor) on analog input 0.
*
* http://www.arduino.cc/en/Reference/Stepper
*/
#include <Stepper.h>
// change this to the number of steps on your motor
#define STEPS 100
// create an instance of the stepper class, specifying
// the number of steps of the motor and the pins it's
// attached to
Stepper stepper(STEPS, 8, 9, 10, 11);
// the previous reading from the analog input
int previous = 0;
void setup()
{
// set the speed of the motor to 30 RPMs
stepper.setSpeed(30);
}
void loop()
{
// get the sensor value
int val = analogRead(0);
// move a number of steps equal to the change in the
// sensor reading
stepper.step(val - previous);
// remember the previous value of the sensor
previous = val;
}

28
hardware/libraries/Stepper/keywords.txt Normal file
View File

@ -0,0 +1,28 @@
#######################################
# Syntax Coloring Map For Test
#######################################
#######################################
# Datatypes (KEYWORD1)
#######################################
Stepper KEYWORD1
#######################################
# Methods and Functions (KEYWORD2)
#######################################
step KEYWORD2
setSpeed KEYWORD2
version KEYWORD2
######################################
# Instances (KEYWORD2)
#######################################
direction KEYWORD2
speed KEYWORD2
#######################################
# Constants (LITERAL1)
#######################################

262
hardware/libraries/Wire/Wire.cpp Executable file
View File

@ -0,0 +1,262 @@
/*
TwoWire.cpp - TWI/I2C library for Wiring & Arduino
Copyright (c) 2006 Nicholas Zambetti. All right reserved.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
extern "C" {
#include <stdlib.h>
#include <string.h>
#include <inttypes.h>
#include "twi.h"
}
#include "Wire.h"
// Initialize Class Variables //////////////////////////////////////////////////
uint8_t* TwoWire::rxBuffer = 0;
uint8_t TwoWire::rxBufferIndex = 0;
uint8_t TwoWire::rxBufferLength = 0;
uint8_t TwoWire::txAddress = 0;
uint8_t* TwoWire::txBuffer = 0;
uint8_t TwoWire::txBufferIndex = 0;
uint8_t TwoWire::txBufferLength = 0;
uint8_t TwoWire::transmitting = 0;
void (*TwoWire::user_onRequest)(void);
void (*TwoWire::user_onReceive)(int);
// Constructors ////////////////////////////////////////////////////////////////
TwoWire::TwoWire()
{
}
// Public Methods //////////////////////////////////////////////////////////////
void TwoWire::begin(void)
{
// init buffer for reads
rxBuffer = (uint8_t*) calloc(BUFFER_LENGTH, sizeof(uint8_t));
rxBufferIndex = 0;
rxBufferLength = 0;
// init buffer for writes
txBuffer = (uint8_t*) calloc(BUFFER_LENGTH, sizeof(uint8_t));
txBufferIndex = 0;
txBufferLength = 0;
twi_init();
}
void TwoWire::begin(uint8_t address)
{
twi_setAddress(address);
twi_attachSlaveTxEvent(onRequestService);
twi_attachSlaveRxEvent(onReceiveService);
begin();
}
void TwoWire::begin(int address)
{
begin((uint8_t)address);
}
void TwoWire::requestFrom(uint8_t address, uint8_t quantity)
{
// clamp to buffer length
if(quantity > BUFFER_LENGTH){
quantity = BUFFER_LENGTH;
}
// perform blocking read into buffer
twi_readFrom(address, rxBuffer, quantity);
// set rx buffer iterator vars
rxBufferIndex = 0;
rxBufferLength = quantity;
}
void TwoWire::requestFrom(int address, int quantity)
{
requestFrom((uint8_t)address, (uint8_t)quantity);
}
void TwoWire::beginTransmission(uint8_t address)
{
// indicate that we are transmitting
transmitting = 1;
// set address of targeted slave
txAddress = address;
// reset tx buffer iterator vars
txBufferIndex = 0;
txBufferLength = 0;
}
void TwoWire::beginTransmission(int address)
{
beginTransmission((uint8_t)address);
}
void TwoWire::endTransmission(void)
{
// transmit buffer (blocking)
twi_writeTo(txAddress, txBuffer, txBufferLength, 1);
// reset tx buffer iterator vars
txBufferIndex = 0;
txBufferLength = 0;
// indicate that we are done transmitting
transmitting = 0;
}
// must be called in:
// slave tx event callback
// or after beginTransmission(address)
void TwoWire::send(uint8_t data)
{
if(transmitting){
// in master transmitter mode
// don't bother if buffer is full
if(txBufferLength >= BUFFER_LENGTH){
return;
}
// put byte in tx buffer
txBuffer[txBufferIndex] = data;
++txBufferIndex;
// update amount in buffer
txBufferLength = txBufferIndex;
}else{
// in slave send mode
// reply to master
twi_transmit(&data, 1);
}
}
// must be called in:
// slave tx event callback
// or after beginTransmission(address)
void TwoWire::send(uint8_t* data, uint8_t quantity)
{
if(transmitting){
// in master transmitter mode
for(uint8_t i = 0; i < quantity; ++i){
send(data[i]);
}
}else{
// in slave send mode
// reply to master
twi_transmit(data, quantity);
}
}
// must be called in:
// slave tx event callback
// or after beginTransmission(address)
void TwoWire::send(char* data)
{
send((uint8_t*)data, strlen(data));
}
// must be called in:
// slave tx event callback
// or after beginTransmission(address)
void TwoWire::send(int data)
{
send((uint8_t)data);
}
// must be called in:
// slave rx event callback
// or after requestFrom(address, numBytes)
uint8_t TwoWire::available(void)
{
return rxBufferLength - rxBufferIndex;
}
// must be called in:
// slave rx event callback
// or after requestFrom(address, numBytes)
uint8_t TwoWire::receive(void)
{
// default to returning null char
// for people using with char strings
uint8_t value = '\0';
// get each successive byte on each call
if(rxBufferIndex < rxBufferLength){
value = rxBuffer[rxBufferIndex];
++rxBufferIndex;
}
return value;
}
// behind the scenes function that is called when data is received
void TwoWire::onReceiveService(uint8_t* inBytes, int numBytes)
{
// don't bother if user hasn't registered a callback
if(!user_onReceive){
return;
}
// don't bother if rx buffer is in use by a master requestFrom() op
// i know this drops data, but it allows for slight stupidity
// meaning, they may not have read all the master requestFrom() data yet
if(rxBufferIndex < rxBufferLength){
return;
}
// copy twi rx buffer into local read buffer
// this enables new reads to happen in parallel
for(uint8_t i = 0; i < numBytes; ++i){
rxBuffer[i] = inBytes[i];
}
// set rx iterator vars
rxBufferIndex = 0;
rxBufferLength = numBytes;
// alert user program
user_onReceive(numBytes);
}
// behind the scenes function that is called when data is requested
void TwoWire::onRequestService(void)
{
// don't bother if user hasn't registered a callback
if(!user_onRequest){
return;
}
// reset tx buffer iterator vars
// !!! this will kill any pending pre-master sendTo() activity
txBufferIndex = 0;
txBufferLength = 0;
// alert user program
user_onRequest();
}
// sets function called on slave write
void TwoWire::onReceive( void (*function)(int) )
{
user_onReceive = function;
}
// sets function called on slave read
void TwoWire::onRequest( void (*function)(void) )
{
user_onRequest = function;
}
// Preinstantiate Objects //////////////////////////////////////////////////////
TwoWire Wire = TwoWire();

67
hardware/libraries/Wire/Wire.h Executable file
View File

@ -0,0 +1,67 @@
/*
TwoWire.h - TWI/I2C library for Arduino & Wiring
Copyright (c) 2006 Nicholas Zambetti. All right reserved.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef TwoWire_h
#define TwoWire_h
#include <inttypes.h>
#define BUFFER_LENGTH 32
class TwoWire
{
private:
static uint8_t* rxBuffer;
static uint8_t rxBufferIndex;
static uint8_t rxBufferLength;
static uint8_t txAddress;
static uint8_t* txBuffer;
static uint8_t txBufferIndex;
static uint8_t txBufferLength;
static uint8_t transmitting;
static void (*user_onRequest)(void);
static void (*user_onReceive)(int);
static void onRequestService(void);
static void onReceiveService(uint8_t*, int);
public:
TwoWire();
void begin();
void begin(uint8_t);
void begin(int);
void beginTransmission(uint8_t);
void beginTransmission(int);
void endTransmission(void);
void requestFrom(uint8_t, uint8_t);
void requestFrom(int, int);
void send(uint8_t);
void send(uint8_t*, uint8_t);
void send(int);
void send(char*);
uint8_t available(void);
uint8_t receive(void);
void onReceive( void (*)(int) );
void onRequest( void (*)(void) );
};
extern TwoWire Wire;
#endif

84
hardware/libraries/Wire/examples/SFRRanger_reader/SFRRanger_reader.pde Executable file
View File

@ -0,0 +1,84 @@
// I2C SRF10 or SRF08 Devantech Ultrasonic Ranger Finder
// by Nicholas Zambetti <http://www.zambetti.com>
// and James Tichenor <http://www.jamestichenor.net>
// Demonstrates use of the Wire library reading data from the
// Devantech Utrasonic Rangers SFR08 and SFR10
// Created 29 April 2006
#include <Wire.h>
void setup()
{
Wire.begin(); // join i2c bus (address optional for master)
Serial.begin(9600); // start serial communication at 9600bps
}
int reading = 0;
void loop()
{
// step 1: instruct sensor to read echoes
Wire.beginTransmission(112); // transmit to device #112 (0x70)
// the address specified in the datasheet is 224 (0xE0)
// but i2c adressing uses the high 7 bits so it's 112
Wire.send(0x00); // sets register pointer to the command register (0x00)
Wire.send(0x50); // command sensor to measure in "inches" (0x50)
// use 0x51 for centimeters
// use 0x52 for ping microseconds
Wire.endTransmission(); // stop transmitting
// step 2: wait for readings to happen
delay(70); // datasheet suggests at least 65 milliseconds
// step 3: instruct sensor to return a particular echo reading
Wire.beginTransmission(112); // transmit to device #112
Wire.send(0x02); // sets register pointer to echo #1 register (0x02)
Wire.endTransmission(); // stop transmitting
// step 4: request reading from sensor
Wire.requestFrom(112, 2); // request 2 bytes from slave device #112
// step 5: receive reading from sensor
if(2 <= Wire.available()) // if two bytes were received
{
reading = Wire.receive(); // receive high byte (overwrites previous reading)
reading = reading << 8; // shift high byte to be high 8 bits
reading |= Wire.receive(); // receive low byte as lower 8 bits
Serial.println(reading); // print the reading
}
delay(250); // wait a bit since people have to read the output :)
}
/*
// The following code changes the address of a Devantech Ultrasonic Range Finder (SRF10 or SRF08)
// usage: changeAddress(0x70, 0xE6);
void changeAddress(byte oldAddress, byte newAddress)
{
Wire.beginTransmission(oldAddress);
Wire.send(0x00);
Wire.send(0xA0);
Wire.endTransmission();
Wire.beginTransmission(oldAddress);
Wire.send(0x00);
Wire.send(0xAA);
Wire.endTransmission();
Wire.beginTransmission(oldAddress);
Wire.send(0x00);
Wire.send(0xA5);
Wire.endTransmission();
Wire.beginTransmission(oldAddress);
Wire.send(0x00);
Wire.send(newAddress);
Wire.endTransmission();
}
*/

34
hardware/libraries/Wire/examples/digital_potentiometer/digital_potentiometer.pde Normal file
View File

@ -0,0 +1,34 @@
// I2C Digital Potentiometer
// by Nicholas Zambetti <http://www.zambetti.com>
// and Shawn Bonkowski <http://people.interaction-ivrea.it/s.bonkowski/>
// Demonstrates use of the Wire library
// Controls AD5171 digital potentiometer via I2C/TWI
// Created 31 March 2006
#include <Wire.h>
void setup()
{
Wire.begin(); // join i2c bus (address optional for master)
}
byte val = 0;
void loop()
{
Wire.beginTransmission(44); // transmit to device #44 (0x2c)
// device address is specified in datasheet
Wire.send(0x00); // sends instruction byte
Wire.send(val); // sends potentiometer value byte
Wire.endTransmission(); // stop transmitting
val++; // increment value
if(val == 64) // if reached 64th position (max)
{
val = 0; // start over from lowest value
}
delay(500);
}

29
hardware/libraries/Wire/examples/master_reader/master_reader.pde Normal file
View File

@ -0,0 +1,29 @@
// Wire Master Reader
// by Nicholas Zambetti <http://www.zambetti.com>
// Demonstrates use of the Wire library
// Reads data from an I2C/TWI slave device
// Refer to the "Wire Slave Sender" example for use with this
// Created 29 March 2006
#include <Wire.h>
void setup()
{
Wire.begin(); // join i2c bus (address optional for master)
Serial.begin(9600); // start serial for output
}
void loop()
{
Wire.requestFrom(2, 6); // request 6 bytes from slave device #2
while(Wire.available()) // slave may send less than requested
{
char c = Wire.receive(); // receive a byte as character
Serial.print(c); // print the character
}
delay(500);
}

28
hardware/libraries/Wire/examples/master_writer/master_writer.pde Normal file
View File

@ -0,0 +1,28 @@
// Wire Master Writer
// by Nicholas Zambetti <http://www.zambetti.com>
// Demonstrates use of the Wire library
// Writes data to an I2C/TWI slave device
// Refer to the "Wire Slave Receiver" example for use with this
// Created 29 March 2006
#include <Wire.h>
void setup()
{
Wire.begin(); // join i2c bus (address optional for master)
}
byte x = 0;
void loop()
{
Wire.beginTransmission(4); // transmit to device #4
Wire.send("x is "); // sends five bytes
Wire.send(x); // sends one byte
Wire.endTransmission(); // stop transmitting
x++;
delay(500);
}

35
hardware/libraries/Wire/examples/slave_receiver/slave_receiver.pde Normal file
View File

@ -0,0 +1,35 @@
// Wire Slave Receiver
// by Nicholas Zambetti <http://www.zambetti.com>
// Demonstrates use of the Wire library
// Receives data as an I2C/TWI slave device
// Refer to the "Wire Master Writer" example for use with this
// Created 29 March 2006
#include <Wire.h>
void setup()
{
Wire.begin(4); // join i2c bus with address #4
Wire.onReceive(receiveEvent); // register event
Serial.begin(9600); // start serial for output
}
void loop()
{
delay(100);
}
// function that executes whenever data is received from master
// this function is registered as an event, see setup()
void receiveEvent(int howMany)
{
while(1 < Wire.available()) // loop through all but the last
{
char c = Wire.receive(); // receive byte as a character
Serial.print(c); // print the character
}
int x = Wire.receive(); // receive byte as an integer
Serial.println(x); // print the integer
}

29
hardware/libraries/Wire/examples/slave_sender/slave_sender.pde Normal file
View File

@ -0,0 +1,29 @@
// Wire Slave Sender
// by Nicholas Zambetti <http://www.zambetti.com>
// Demonstrates use of the Wire library
// Sends data as an I2C/TWI slave device
// Refer to the "Wire Master Reader" example for use with this
// Created 29 March 2006
#include <Wire.h>
void setup()
{
Wire.begin(2); // join i2c bus with address #2
Wire.onRequest(requestEvent); // register event
}
void loop()
{
delay(100);
}
// function that executes whenever data is requested by master
// this function is registered as an event, see setup()
void requestEvent()
{
Wire.send("hello "); // respond with message of 6 bytes
// as expected by master
}

31
hardware/libraries/Wire/keywords.txt Normal file
View File

@ -0,0 +1,31 @@
#######################################
# Syntax Coloring Map For Wire
#######################################
#######################################
# Datatypes (KEYWORD1)
#######################################
#######################################
# Methods and Functions (KEYWORD2)
#######################################
begin KEYWORD2
beginTransmission KEYWORD2
endTransmission KEYWORD2
requestFrom KEYWORD2
send KEYWORD2
receive KEYWORD2
onReceive KEYWORD2
onRequest KEYWORD2
#######################################
# Instances (KEYWORD2)
#######################################
Wire KEYWORD2
#######################################
# Constants (LITERAL1)
#######################################

449
hardware/libraries/Wire/utility/twi.c Normal file
View File

@ -0,0 +1,449 @@
/*
twi.c - TWI/I2C library for Wiring & Arduino
Copyright (c) 2006 Nicholas Zambetti. All right reserved.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <math.h>
#include <stdlib.h>
#include <inttypes.h>
#include <avr/io.h>
#include <avr/interrupt.h>
#include <avr/signal.h>
#include <compat/twi.h>
#ifndef cbi
#define cbi(sfr, bit) (_SFR_BYTE(sfr) &= ~_BV(bit))
#endif
#ifndef sbi
#define sbi(sfr, bit) (_SFR_BYTE(sfr) |= _BV(bit))
#endif
#include "twi.h"
static volatile uint8_t twi_state;
static uint8_t twi_slarw;
static void (*twi_onSlaveTransmit)(void);
static void (*twi_onSlaveReceive)(uint8_t*, int);
static uint8_t* twi_masterBuffer;
static volatile uint8_t twi_masterBufferIndex;
static uint8_t twi_masterBufferLength;
static uint8_t* twi_txBuffer;
static volatile uint8_t twi_txBufferIndex;
static volatile uint8_t twi_txBufferLength;
static uint8_t* twi_rxBuffer;
static volatile uint8_t twi_rxBufferIndex;
/*
* Function twi_init
* Desc readys twi pins and sets twi bitrate
* Input none
* Output none
*/
void twi_init(void)
{
// initialize state
twi_state = TWI_READY;
#if defined(__AVR_ATmega168__) || defined(__AVR_ATmega8__)
// activate internal pull-ups for twi
// as per note from atmega8 manual pg167
sbi(PORTC, 4);
sbi(PORTC, 5);
#else
// activate internal pull-ups for twi
// as per note from atmega128 manual pg204
sbi(PORTD, 0);
sbi(PORTD, 1);
#endif
// initialize twi prescaler and bit rate
cbi(TWSR, TWPS0);
cbi(TWSR, TWPS1);
TWBR = ((CPU_FREQ / TWI_FREQ) - 16) / 2;
/* twi bit rate formula from atmega128 manual pg 204
SCL Frequency = CPU Clock Frequency / (16 + (2 * TWBR))
note: TWBR should be 10 or higher for master mode
It is 72 for a 16mhz Wiring board with 100kHz TWI */
// enable twi module, acks, and twi interrupt
TWCR = _BV(TWEN) | _BV(TWIE) | _BV(TWEA);
// allocate buffers
twi_masterBuffer = (uint8_t*) calloc(TWI_BUFFER_LENGTH, sizeof(uint8_t));
twi_txBuffer = (uint8_t*) calloc(TWI_BUFFER_LENGTH, sizeof(uint8_t));
twi_rxBuffer = (uint8_t*) calloc(TWI_BUFFER_LENGTH, sizeof(uint8_t));
}
/*
* Function twi_slaveInit
* Desc sets slave address and enables interrupt
* Input none
* Output none
*/
void twi_setAddress(uint8_t address)
{
// set twi slave address (skip over TWGCE bit)
TWAR = address << 1;
}
/*
* Function twi_readFrom
* Desc attempts to become twi bus master and read a
* series of bytes from a device on the bus
* Input address: 7bit i2c device address
* data: pointer to byte array
* length: number of bytes to read into array
* Output byte: 0 ok, 1 length too long for buffer
*/
uint8_t twi_readFrom(uint8_t address, uint8_t* data, uint8_t length)
{
uint8_t i;
// ensure data will fit into buffer
if(TWI_BUFFER_LENGTH < length){
return 1;
}
// wait until twi is ready, become master receiver
while(TWI_READY != twi_state){
continue;
}
twi_state = TWI_MRX;
// initialize buffer iteration vars
twi_masterBufferIndex = 0;
twi_masterBufferLength = length;
// build sla+w, slave device address + w bit
twi_slarw = TW_READ;
twi_slarw |= address << 1;
// send start condition
TWCR = _BV(TWEN) | _BV(TWIE) | _BV(TWEA) | _BV(TWINT) | _BV(TWSTA);
// wait for read operation to complete
while(TWI_MRX == twi_state){
continue;
}
// copy twi buffer to data
for(i = 0; i < length; ++i){
data[i] = twi_masterBuffer[i];
}
return 0;
}
/*
* Function twi_writeTo
* Desc attempts to become twi bus master and write a
* series of bytes to a device on the bus
* Input address: 7bit i2c device address
* data: pointer to byte array
* length: number of bytes in array
* wait: boolean indicating to wait for write or not
* Output byte: 0 ok, 1 length too long for buffer
*/
uint8_t twi_writeTo(uint8_t address, uint8_t* data, uint8_t length, uint8_t wait)
{
uint8_t i;
// ensure data will fit into buffer
if(TWI_BUFFER_LENGTH < length){
return 1;
}
// wait until twi is ready, become master transmitter
while(TWI_READY != twi_state){
continue;
}
twi_state = TWI_MTX;
// initialize buffer iteration vars
twi_masterBufferIndex = 0;
twi_masterBufferLength = length;
// copy data to twi buffer
for(i = 0; i < length; ++i){
twi_masterBuffer[i] = data[i];
}
// build sla+w, slave device address + w bit
twi_slarw = TW_WRITE;
twi_slarw |= address << 1;
// send start condition
TWCR = _BV(TWEN) | _BV(TWIE) | _BV(TWEA) | _BV(TWINT) | _BV(TWSTA);
// wait for write operation to complete
while(wait && (TWI_MTX == twi_state)){
continue;
}
return 0;
}
/*
* Function twi_transmit
* Desc fills slave tx buffer with data
* must be called in slave tx event callback
* Input data: pointer to byte array
* length: number of bytes in array
* Output 1 length too long for buffer
* 2 not slave transmitter
* 0 ok
*/
uint8_t twi_transmit(uint8_t* data, uint8_t length)
{
uint8_t i;
// ensure data will fit into buffer
if(TWI_BUFFER_LENGTH < length){
return 1;
}
// ensure we are currently a slave transmitter
if(TWI_STX != twi_state){
return 2;
}
// set length and copy data into tx buffer
twi_txBufferLength = length;
for(i = 0; i < length; ++i){
twi_txBuffer[i] = data[i];
}
return 0;
}
/*
* Function twi_attachSlaveRxEvent
* Desc sets function called before a slave read operation
* Input function: callback function to use
* Output none
*/
void twi_attachSlaveRxEvent( void (*function)(uint8_t*, int) )
{
twi_onSlaveReceive = function;
}
/*
* Function twi_attachSlaveTxEvent
* Desc sets function called before a slave write operation
* Input function: callback function to use
* Output none
*/
void twi_attachSlaveTxEvent( void (*function)(void) )
{
twi_onSlaveTransmit = function;
}
/*
* Function twi_reply
* Desc sends byte or readys receive line
* Input ack: byte indicating to ack or to nack
* Output none
*/
void twi_reply(uint8_t ack)
{
// transmit master read ready signal, with or without ack
if(ack){
TWCR = _BV(TWEN) | _BV(TWIE) | _BV(TWINT) | _BV(TWEA);
}else{
TWCR = _BV(TWEN) | _BV(TWIE) | _BV(TWINT);
}
}
/*
* Function twi_stop
* Desc relinquishes bus master status
* Input none
* Output none
*/
void twi_stop(void)
{
// send stop condition
TWCR = _BV(TWEN) | _BV(TWIE) | _BV(TWEA) | _BV(TWINT) | _BV(TWSTO);
// wait for stop condition to be exectued on bus
// TWINT is not set after a stop condition!
while(TWCR & _BV(TWSTO)){
continue;
}
// update twi state
twi_state = TWI_READY;
}
/*
* Function twi_releaseBus
* Desc releases bus control
* Input none
* Output none
*/
void twi_releaseBus(void)
{
// release bus
TWCR = _BV(TWEN) | _BV(TWIE) | _BV(TWEA) | _BV(TWINT);
// update twi state
twi_state = TWI_READY;
}
SIGNAL(SIG_2WIRE_SERIAL)
{
switch(TW_STATUS){
// All Master
case TW_START: // sent start condition
case TW_REP_START: // sent repeated start condition
// copy device address and r/w bit to output register and ack
TWDR = twi_slarw;
twi_reply(1);
break;
// Master Transmitter
case TW_MT_SLA_ACK: // slave receiver acked address
case TW_MT_DATA_ACK: // slave receiver acked data
// if there is data to send, send it, otherwise stop
if(twi_masterBufferIndex < twi_masterBufferLength){
// copy data to output register and ack
TWDR = twi_masterBuffer[twi_masterBufferIndex++];
twi_reply(1);
}else{
twi_stop();
}
break;
case TW_MT_SLA_NACK: // address sent, nack received
case TW_MT_DATA_NACK: // data sent, nack received
twi_stop();
break;
case TW_MT_ARB_LOST: // lost bus arbitration
twi_releaseBus();
break;
// Master Receiver
case TW_MR_DATA_ACK: // data received, ack sent
// put byte into buffer
twi_masterBuffer[twi_masterBufferIndex++] = TWDR;
case TW_MR_SLA_ACK: // address sent, ack received
// ack if more bytes are expected, otherwise nack
if(twi_masterBufferIndex < twi_masterBufferLength){
twi_reply(1);
}else{
twi_reply(0);
}
break;
case TW_MR_DATA_NACK: // data received, nack sent
// put final byte into buffer
twi_masterBuffer[twi_masterBufferIndex++] = TWDR;
case TW_MR_SLA_NACK: // address sent, nack received
twi_stop();
break;
// TW_MR_ARB_LOST handled by TW_MT_ARB_LOST case
// Slave Receiver
case TW_SR_SLA_ACK: // addressed, returned ack
case TW_SR_GCALL_ACK: // addressed generally, returned ack
case TW_SR_ARB_LOST_SLA_ACK: // lost arbitration, returned ack
case TW_SR_ARB_LOST_GCALL_ACK: // lost arbitration, returned ack
// enter slave receiver mode
twi_state = TWI_SRX;
// indicate that rx buffer can be overwritten and ack
twi_rxBufferIndex = 0;
twi_reply(1);
break;
case TW_SR_DATA_ACK: // data received, returned ack
case TW_SR_GCALL_DATA_ACK: // data received generally, returned ack
// if there is still room in the rx buffer
if(twi_rxBufferIndex < TWI_BUFFER_LENGTH){
// put byte in buffer and ack
twi_rxBuffer[twi_rxBufferIndex++] = TWDR;
twi_reply(1);
}else{
// otherwise nack
twi_reply(0);
}
break;
case TW_SR_STOP: // stop or repeated start condition received
// put a null char after data if there's room
if(twi_rxBufferIndex < TWI_BUFFER_LENGTH){
twi_rxBuffer[twi_rxBufferIndex] = '\0';
}
// callback to user defined callback
twi_onSlaveReceive(twi_rxBuffer, twi_rxBufferIndex);
// ack future responses
twi_reply(1);
// leave slave receiver state
twi_state = TWI_READY;
break;
case TW_SR_DATA_NACK: // data received, returned nack
case TW_SR_GCALL_DATA_NACK: // data received generally, returned nack
// nack back at master
twi_reply(0);
break;
// Slave Transmitter
case TW_ST_SLA_ACK: // addressed, returned ack
case TW_ST_ARB_LOST_SLA_ACK: // arbitration lost, returned ack
// enter slave transmitter mode
twi_state = TWI_STX;
// ready the tx buffer index for iteration
twi_txBufferIndex = 0;
// set tx buffer length to be zero, to verify if user changes it
twi_txBufferLength = 0;
// request for txBuffer to be filled and length to be set
// note: user must call twi_transmit(bytes, length) to do this
twi_onSlaveTransmit();
// if they didn't change buffer & length, initialize it
if(0 == twi_txBufferLength){
twi_txBufferLength = 1;
twi_txBuffer[0] = 0x00;
}
// transmit first byte from buffer, fall
case TW_ST_DATA_ACK: // byte sent, ack returned
// copy data to output register
TWDR = twi_txBuffer[twi_txBufferIndex++];
// if there is more to send, ack, otherwise nack
if(twi_txBufferIndex < twi_txBufferLength){
twi_reply(1);
}else{
twi_reply(0);
}
break;
case TW_ST_DATA_NACK: // received nack, we are done
case TW_ST_LAST_DATA: // received ack, but we are done already!
// ack future responses
twi_reply(1);
// leave slave receiver state
twi_state = TWI_READY;
break;
// All
case TW_NO_INFO: // no state information
break;
case TW_BUS_ERROR: // bus error, illegal stop/start
twi_stop();
break;
}
}

57
hardware/libraries/Wire/utility/twi.h Executable file
View File

@ -0,0 +1,57 @@
/*
twi.h - TWI/I2C library for Wiring & Arduino
Copyright (c) 2006 Nicholas Zambetti. All right reserved.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef twi_h
#define twi_h
#include <inttypes.h>
//#define ATMEGA8
#ifndef CPU_FREQ
#define CPU_FREQ 16000000L
#endif
#ifndef TWI_FREQ
#define TWI_FREQ 100000L
#endif
#ifndef TWI_BUFFER_LENGTH
#define TWI_BUFFER_LENGTH 32
#endif
#define TWI_READY 0
#define TWI_MRX 1
#define TWI_MTX 2
#define TWI_SRX 3
#define TWI_STX 4
void twi_init(void);
void twi_setAddress(uint8_t);
uint8_t twi_readFrom(uint8_t, uint8_t*, uint8_t);
uint8_t twi_writeTo(uint8_t, uint8_t*, uint8_t, uint8_t);
uint8_t twi_transmit(uint8_t*, uint8_t);
void twi_attachSlaveRxEvent( void (*)(uint8_t*, int) );
void twi_attachSlaveTxEvent( void (*)(void) );
void twi_reply(uint8_t);
void twi_stop(void);
void twi_releaseBus(void);
#endif