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/trunk/libraries/MAX7219/MAX7219.cpp
0,0 → 1,240
/**************************************************************************//**
* \brief MAX7219 library for Arduino
* \author Copyright (C) 2011 Julien Le Sech - www.idreammicro.com
* \version 1.0
* \date 20110801
*
* This file is part of the MAX7219 library for Arduino.
*
* 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 3 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 program. If not, see http://www.gnu.org/licenses/
******************************************************************************/
 
/**************************************************************************//**
* \file MAX7219.cpp
******************************************************************************/
/******************************************************************************
* Header file inclusions.
******************************************************************************/
#include <WProgram.h>
 
#include <SPI.h>
 
#include <MAX7219.h>
 
/******************************************************************************
* Private macros.
******************************************************************************/
 
#define REG_NO_OP 0x00
#define REG_DIGIT_0 0x01
#define REG_DIGIT_1 0x02
#define REG_DIGIT_2 0x03
#define REG_DIGIT_3 0x04
#define REG_DIGIT_4 0x05
#define REG_DIGIT_5 0x06
#define REG_DIGIT_6 0x07
#define REG_DIGIT_7 0x08
#define REG_DECODE_MODE 0x09
#define REG_INTENSITY 0x0A
#define REG_SCAN_LIMIT 0x0B
#define REG_SHUTDOWN 0x0C
#define REG_DISPLAY_TEST 0x0F
 
/******************************************************************************
* Public method definitions.
******************************************************************************/
 
/**************************************************************************//**
* \fn MAX7219::MAX7219(byte csPin)
*
* \brief Constructor.
*
* \param csPin Chip select pin number.
******************************************************************************/
MAX7219::MAX7219
(
byte csPin
){
m_csPin = csPin;
}
 
/**************************************************************************//**
* \fn void MAX7219::initialize()
*
* \brief Initialize SPI to drive MAX7219.
******************************************************************************/
void
MAX7219::initialize()
{
// Configure chip select pin as output.
pinMode(m_csPin, OUTPUT);
// Wait a little to allow MAX7219 to see a correct logic level on CS pin.
delay(1);
// Configure SPI.
SPI.begin();
SPI.setBitOrder(MSBFIRST);
SPI.setDataMode(SPI_MODE0);
SPI.setClockDivider(SPI_CLOCK_DIV4);
}
 
/**************************************************************************//**
* \fn void MAX7219::setDecodeMode(DecodeModes mode)
*
* \brief Set MAX7219 decode mode.
*
* \param mode Decode mode to set.
******************************************************************************/
void
MAX7219::setDecodeMode
(
DecodeModes mode
){
write(REG_DECODE_MODE, mode);
}
 
/**************************************************************************//**
* \fn void MAX7219::setIntensity(Intensities intensity)
*
* \brief Set MAX7219 intensity.
*
* \param itensity Intensity to set.
******************************************************************************/
void
MAX7219::setIntensity
(
Intensities intensity
){
write(REG_INTENSITY, intensity);
}
 
/**************************************************************************//**
* \fn void MAX7219::setScanLimit(ScanLimits limit)
*
* \brief Set MAX7219 scan limit.
*
* \param limit Scan limit to set.
******************************************************************************/
void
MAX7219::setScanLimit
(
ScanLimits limit
){
write(REG_SCAN_LIMIT, limit);
}
 
/**************************************************************************//**
* \fn void MAX7219::setShutdownMode(ShutdownModes mode)
*
* \brief Set MAX7219 shutdown mode.
*
* \param mode Shutdown mode to set.
******************************************************************************/
void
MAX7219::setShutdownMode
(
ShutdownModes mode
){
write(REG_SHUTDOWN, mode);
}
 
/**************************************************************************//**
* \fn void MAX7219::setDisplayTestMode(DisplayTestModes mode)
*
* \brief Set MAX7219 display test mode.
*
* \param mode Display test mode to set.
******************************************************************************/
void
MAX7219::setDisplayTestMode
(
DisplayTestModes mode
){
write(REG_DISPLAY_TEST, mode);
}
 
/**************************************************************************//**
* \fn void MAX7219::writeDigit(
* Digits digit,
* Characters character,
* bool decimalPoint)
*
* \brief Write character on digit.
*
* \param digit Digit to write.
* \param character Character to write.
* \param decimalPoint Display decimal point if true.
******************************************************************************/
void
MAX7219::writeDigit
(
Digits digit,
Characters character,
bool decimalPoint
){
byte value = character;
if (decimalPoint)
{
// If decimal point must be switched on.
value |= Segment_DP;
}
write(digit, value);
}
 
/**************************************************************************//**
* \fn void MAX7219::writeDigit(Digits digit, Segments segments)
*
* \brief Set segment(s) on digit.
*
* \param digit Digit to write.
* \param segment Segment(s) to set.
******************************************************************************/
void
MAX7219::writeDigit
(
Digits digit,
Segments segments
){
write(digit, segments);
}
 
/******************************************************************************
* Private method definitions.
******************************************************************************/
 
/**************************************************************************//**
* \fn void MAX7219::write(byte address, byte value)
*
* \brief Write value into MAX7219 register.
*
* \param address Register address.
* \param value Value to write.
******************************************************************************/
void
MAX7219::write
(
byte address,
byte value
){
// Reset chip select pin to select the device.
digitalWrite(m_csPin, LOW);
// Transmit data to the device, register address and value.
SPI.transfer(address);
SPI.transfer(value);
// Set chip select pin to valid data onto the device.
digitalWrite(m_csPin, HIGH);
}
/trunk/libraries/MAX7219/lgpl-3.0.txt
0,0 → 1,165
GNU LESSER GENERAL PUBLIC LICENSE
Version 3, 29 June 2007
 
Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
 
 
This version of the GNU Lesser General Public License incorporates
the terms and conditions of version 3 of the GNU General Public
License, supplemented by the additional permissions listed below.
 
0. Additional Definitions.
 
As used herein, "this License" refers to version 3 of the GNU Lesser
General Public License, and the "GNU GPL" refers to version 3 of the GNU
General Public License.
 
"The Library" refers to a covered work governed by this License,
other than an Application or a Combined Work as defined below.
 
An "Application" is any work that makes use of an interface provided
by the Library, but which is not otherwise based on the Library.
Defining a subclass of a class defined by the Library is deemed a mode
of using an interface provided by the Library.
 
A "Combined Work" is a work produced by combining or linking an
Application with the Library. The particular version of the Library
with which the Combined Work was made is also called the "Linked
Version".
 
The "Minimal Corresponding Source" for a Combined Work means the
Corresponding Source for the Combined Work, excluding any source code
for portions of the Combined Work that, considered in isolation, are
based on the Application, and not on the Linked Version.
 
The "Corresponding Application Code" for a Combined Work means the
object code and/or source code for the Application, including any data
and utility programs needed for reproducing the Combined Work from the
Application, but excluding the System Libraries of the Combined Work.
 
1. Exception to Section 3 of the GNU GPL.
 
You may convey a covered work under sections 3 and 4 of this License
without being bound by section 3 of the GNU GPL.
 
2. Conveying Modified Versions.
 
If you modify a copy of the Library, and, in your modifications, a
facility refers to a function or data to be supplied by an Application
that uses the facility (other than as an argument passed when the
facility is invoked), then you may convey a copy of the modified
version:
 
a) under this License, provided that you make a good faith effort to
ensure that, in the event an Application does not supply the
function or data, the facility still operates, and performs
whatever part of its purpose remains meaningful, or
 
b) under the GNU GPL, with none of the additional permissions of
this License applicable to that copy.
 
3. Object Code Incorporating Material from Library Header Files.
 
The object code form of an Application may incorporate material from
a header file that is part of the Library. You may convey such object
code under terms of your choice, provided that, if the incorporated
material is not limited to numerical parameters, data structure
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(ten or fewer lines in length), you do both of the following:
 
a) Give prominent notice with each copy of the object code that the
Library is used in it and that the Library and its use are
covered by this License.
 
b) Accompany the object code with a copy of the GNU GPL and this license
document.
 
4. Combined Works.
 
You may convey a Combined Work under terms of your choice that,
taken together, effectively do not restrict modification of the
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engineering for debugging such modifications, if you also do each of
the following:
 
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the Library is used in it and that the Library and its use are
covered by this License.
 
b) Accompany the Combined Work with a copy of the GNU GPL and this license
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c) For a Combined Work that displays copyright notices during
execution, include the copyright notice for the Library among
these notices, as well as a reference directing the user to the
copies of the GNU GPL and this license document.
 
d) Do one of the following:
 
0) Convey the Minimal Corresponding Source under the terms of this
License, and the Corresponding Application Code in a form
suitable for, and under terms that permit, the user to
recombine or relink the Application with a modified version of
the Linked Version to produce a modified Combined Work, in the
manner specified by section 6 of the GNU GPL for conveying
Corresponding Source.
 
1) Use a suitable shared library mechanism for linking with the
Library. A suitable mechanism is one that (a) uses at run time
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e) Provide Installation Information, but only if you would otherwise
be required to provide such information under section 6 of the
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Combined Work produced by recombining or relinking the
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you use option 4d0, the Installation Information must accompany
the Minimal Corresponding Source and Corresponding Application
Code. If you use option 4d1, you must provide the Installation
Information in the manner specified by section 6 of the GNU GPL
for conveying Corresponding Source.)
 
5. Combined Libraries.
 
You may place library facilities that are a work based on the
Library side by side in a single library together with other library
facilities that are not Applications and are not covered by this
License, and convey such a combined library under terms of your
choice, if you do both of the following:
 
a) Accompany the combined library with a copy of the same work based
on the Library, uncombined with any other library facilities,
conveyed under the terms of this License.
 
b) Give prominent notice with the combined library that part of it
is a work based on the Library, and explaining where to find the
accompanying uncombined form of the same work.
 
6. Revised Versions of the GNU Lesser General Public License.
 
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of the GNU Lesser General Public License from time to time. Such new
versions will be similar in spirit to the present version, but may
differ in detail to address new problems or concerns.
 
Each version is given a distinguishing version number. If the
Library as you received it specifies that a certain numbered version
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Library.
/trunk/libraries/MAX7219/examples/MAX7219.pde
0,0 → 1,91
/**************************************************************************//**
* \brief MAX7219 library for Arduino - Demo program
* \author Copyright (C) 2011 Julien Le Sech - www.idreammicro.com
* \version 1.0
* \date 20110801
*
* This file is part of the MAX7219 library for Arduino.
*
* 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 3 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 program. If not, see http://www.gnu.org/licenses/
******************************************************************************/
 
/**************************************************************************//**
* \file MAX7219.pde
******************************************************************************/
 
/******************************************************************************
* Header file inclusions.
******************************************************************************/
 
#include <WProgram.h>
 
#include <SPI.h>
 
#include <MAX7219.h>
 
/******************************************************************************
* Private variable declaration.
******************************************************************************/
 
static MAX7219 max7219(10);
 
/******************************************************************************
* Public function definitions.
******************************************************************************/
 
/**************************************************************************//**
* \fn void setup()
******************************************************************************/
void setup()
{
// Initiliaze MAX7219.
max7219.initialize();
// Set scan limit.
max7219.setScanLimit(MAX7219::ScanLimit_Digit0To7);
// Set decode mode.
max7219.setDecodeMode(MAX7219::DecodeMode_AllDigits);
// Set intensity.
max7219.setIntensity(MAX7219::Intensity_Level15);
// Set shutdown mode.
max7219.setShutdownMode(MAX7219::ShutdownMode_NormalOperation);
}
 
/**************************************************************************//**
* \fn void loop()
******************************************************************************/
void loop()
{
// To write digit values, a loop may be more elegant but a bit more
// complicated for this example.
 
// Write digit 0 value.
max7219.writeDigit(MAX7219::Digit_0, MAX7219::Character_Zero);
// Write digit 1 value.
max7219.writeDigit(MAX7219::Digit_1, MAX7219::Character_One);
// Write digit 2 value.
max7219.writeDigit(MAX7219::Digit_2, MAX7219::Character_Two);
// Write digit 3 value.
max7219.writeDigit(MAX7219::Digit_3, MAX7219::Character_Three);
// Write digit 4 value.
max7219.writeDigit(MAX7219::Digit_4, MAX7219::Character_Four);
// Write digit 5 value.
max7219.writeDigit(MAX7219::Digit_5, MAX7219::Character_Five);
// Write digit 6 value.
max7219.writeDigit(MAX7219::Digit_6, MAX7219::Character_Six);
// Write digit 7 value.
max7219.writeDigit(MAX7219::Digit_7, MAX7219::Character_Seven);
 
// Wait a little before next loop.
delay(1000);
}
/trunk/libraries/MAX7219/MAX7219.h
0,0 → 1,319
/**************************************************************************//**
* \brief MAX7219 library for Arduino
* \author Copyright (C) 2011 Julien Le Sech - www.idreammicro.com
* \version 1.0
* \date 20110801
*
* This file is part of the MAX7219 library for Arduino.
*
* 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 3 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 program. If not, see http://www.gnu.org/licenses/
******************************************************************************/
 
/**************************************************************************//**
* \headerfile MAX7219.h
******************************************************************************/
#ifndef MAX7219_h
#define MAX7219_h
 
/******************************************************************************
* Header file inclusions.
******************************************************************************/
 
#include <WProgram.h>
 
/**************************************************************************//**
* \class MAX7219
******************************************************************************/
class MAX7219
{
public:
/******************************************************************//**
* \enum DecodeModes
* \typedef DecodeMode_t
**********************************************************************/
typedef enum DecodeModes
{
DecodeMode_NoDecode = 0x00,
DecodeMode_Digit0 = 0x01,
DecodeMode_Digit1 = 0x02,
DecodeMode_Digit2 = 0x04,
DecodeMode_Digit3 = 0x08,
DecodeMode_Digit4 = 0x10,
DecodeMode_Digit5 = 0x20,
DecodeMode_Digit6 = 0x40,
DecodeMode_Digit7 = 0x80,
DecodeMode_AllDigits = 0xFF
} DecodeMode_t;
 
/******************************************************************//**
* \enum DecodeModes
* \typedef DecodeMode_t
**********************************************************************/
typedef enum Intensities
{
Intensity_Level0 = 0x00,
Intensity_Level1 = 0x01,
Intensity_Level2 = 0x02,
Intensity_Level3 = 0x03,
Intensity_Level4 = 0x04,
Intensity_Level5 = 0x05,
Intensity_Level6 = 0x06,
Intensity_Level7 = 0x07,
Intensity_Level8 = 0x08,
Intensity_Level9 = 0x09,
Intensity_Level10 = 0x0A,
Intensity_Level11 = 0x0B,
Intensity_Level12 = 0x0C,
Intensity_Level13 = 0x0D,
Intensity_Level14 = 0x0E,
Intensity_Level15 = 0x0F
} Intensity_t;
 
/******************************************************************//**
* \enum ScanLimits
* \typedef ScanLimit_t
**********************************************************************/
typedef enum ScanLimits
{
ScanLimit_Digit0 = 0x00,
ScanLimit_Digit0To1 = 0x01,
ScanLimit_Digit0To2 = 0x02,
ScanLimit_Digit0To3 = 0x03,
ScanLimit_Digit0To4 = 0x04,
ScanLimit_Digit0To5 = 0x05,
ScanLimit_Digit0To6 = 0x06,
ScanLimit_Digit0To7 = 0x07
} ScanLimit_t;
 
/******************************************************************//**
* \enum ShutdownModes
* \typedef ShutdownMode_t
**********************************************************************/
typedef enum ShutdownModes
{
ShutdownMode_Shutdown = 0x00,
ShutdownMode_NormalOperation = 0x01
} ShutdownMode_t;
 
/******************************************************************//**
* \enum DisplayTestModes
* \typedef DisplayTestMode_t
**********************************************************************/
typedef enum DisplayTestModes
{
NormalOperation = 0x00,
TestMode = 0x01
} DisplayTestMode_t;
 
/******************************************************************//**
* \enum Digits
* \typedef Digit_t
**********************************************************************/
typedef enum Digits
{
Digit_0 = 0x01,
Digit_1 = 0x02,
Digit_2 = 0x03,
Digit_3 = 0x04,
Digit_4 = 0x05,
Digit_5 = 0x06,
Digit_6 = 0x07,
Digit_7 = 0x08
} Digit_t;
 
/******************************************************************//**
* \enum Characters
* \typedef Character_t
**********************************************************************/
typedef enum Characters
{
Character_Zero = 0x00,
Character_One = 0x01,
Character_Two = 0x02,
Character_Three = 0x03,
Character_Four = 0x04,
Character_Five = 0x05,
Character_Six = 0x06,
Character_Seven = 0x07,
Character_Eight = 0x08,
Character_Nine = 0x09,
Character_Dash = 0x0A,
Character_E = 0x0B,
Character_H = 0x0C,
Character_L = 0x0D,
Character_P = 0x0E,
Character_Blank = 0x0F
} Character_t;
 
/******************************************************************//**
* \enum Segments
* \typedef Segment_t
**********************************************************************/
typedef enum Segments
{
Segment_DP = 0x80,
Segment_A = 0x40,
Segment_B = 0x20,
Segment_C = 0x10,
Segment_D = 0x08,
Segment_E = 0x04,
Segment_F = 0x02,
Segment_G = 0x01
} Segment_t;
 
public:
/******************************************************************//**
* \fn MAX7219(byte csPin)
*
* \brief Constructor.
*
* \param csPin Chip select pin number.
**********************************************************************/
MAX7219
(
byte csPin
);
 
/******************************************************************//**
* \fn void initialize()
*
* \brief Initialize SPI to drive MAX7219.
**********************************************************************/
void
initialize();
 
/******************************************************************//**
* \fn void setDecodeMode(DecodeModes mode)
*
* \brief Set MAX7219 decode mode.
*
* \param mode Decode mode to set.
**********************************************************************/
void
setDecodeMode
(
DecodeModes mode
);
 
/******************************************************************//**
* \fn void setIntensity(Intensities intensity)
*
* \brief Set MAX7219 intensity.
*
* \param itensity Intensity to set.
**********************************************************************/
void
setIntensity
(
Intensities intensity
);
 
/******************************************************************//**
* \fn void setScanLimit(ScanLimits limit)
*
* \brief Set MAX7219 scan limit.
*
* \param limit Scan limit to set.
**********************************************************************/
void
setScanLimit
(
ScanLimits limit
);
 
/******************************************************************//**
* \fn void setShutdownMode(ShutdownModes mode)
*
* \brief Set MAX7219 shutdown mode.
*
* \param mode Shutdown mode to set.
**********************************************************************/
void
setShutdownMode
(
ShutdownModes mode
);
 
/******************************************************************//**
* \fn void setDisplayTestMode(DisplayTestModes mode)
*
* \brief Set MAX7219 display test mode.
*
* \param mode Display test mode to set.
**********************************************************************/
void
setDisplayTestMode
(
DisplayTestModes mode
);
 
/******************************************************************//**
* \fn void writeDigit(
* Digits digit,
* Characters character,
* bool decimalPoint = false)
*
* \brief Write character on digit.
*
* \param digit Digit to write.
* \param character Character to write.
* \param decimalPoint Display decimal point.
**********************************************************************/
void
writeDigit
(
Digits digit,
Characters character,
bool decimalPoint = false
);
 
/******************************************************************//**
* \fn void writeDigit(Digits digit, Segments segments)
*
* \brief Set segment(s) on digit.
*
* \param digit Digit to write.
* \param segment Segment(s) to set.
**********************************************************************/
void
writeDigit
(
Digits digit,
Segments segment
);
private:
byte m_csPin;
 
/******************************************************************//**
* \fn void write(byte address, byte value)
*
* \brief Write value into MAX7219 register.
*
* \param address Register address.
* \param value Value to write.
**********************************************************************/
void
write
(
byte address,
byte value
);
};
 
#endif // MAX7219_h