mbed Advent Calendar 2014 day 8 (http://www.adventar.org/calendars/523)

Dependencies:   USBDevice mbed

Files at this revision

API Documentation at this revision

Comitter:
hsgw
Date:
Mon Dec 08 12:31:18 2014 +0000
Commit message:
1st commit

Changed in this revision

PinDetect/ChangeLog.h Show annotated file Show diff for this revision Revisions of this file
PinDetect/PinDetect.h Show annotated file Show diff for this revision Revisions of this file
PinDetect/example.h Show annotated file Show diff for this revision Revisions of this file
USBDevice.lib Show annotated file Show diff for this revision Revisions of this file
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diff -r 000000000000 -r 23d012049941 PinDetect/ChangeLog.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/PinDetect/ChangeLog.h	Mon Dec 08 12:31:18 2014 +0000
@@ -0,0 +1,39 @@
+/*
+    Copyright (c) 2010 Andy Kirkham
+ 
+    Permission is hereby granted, free of charge, to any person obtaining a copy
+    of this software and associated documentation files (the "Software"), to deal
+    in the Software without restriction, including without limitation the rights
+    to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+    copies of the Software, and to permit persons to whom the Software is
+    furnished to do so, subject to the following conditions:
+ 
+    The above copyright notice and this permission notice shall be included in
+    all copies or substantial portions of the Software.
+ 
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+    OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+    THE SOFTWARE.
+
+    1.5     13 Jan 2011 - Made the isr() protected and made the class a friend of Ticker.
+                          Read the previous state and store when the sample frequency is
+                          set so that initial assert_deassert_held() isn't called at startup.
+                              
+    1.4     13 Jan 2011 - Added an extra overloaded constructor that allows
+                          the DigitalIn PinMode to be passed when the the class
+                          is declared. So mode() isn't really needed but is left
+                          in for completeness.
+    
+    1.3     13 Jan 2011 - Updated some doxygen comments.
+
+    1.2     13 Jan 2011 - Added ChangeLog.h file.
+
+    1.1     13 Jan 2011 - Fixed some typos.
+
+    1.0     13 Jan 2011 - Initial release.
+
+*/
diff -r 000000000000 -r 23d012049941 PinDetect/PinDetect.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/PinDetect/PinDetect.h	Mon Dec 08 12:31:18 2014 +0000
@@ -0,0 +1,501 @@
+/*
+    Copyright (c) 2010 Andy Kirkham
+ 
+    Permission is hereby granted, free of charge, to any person obtaining a copy
+    of this software and associated documentation files (the "Software"), to deal
+    in the Software without restriction, including without limitation the rights
+    to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+    copies of the Software, and to permit persons to whom the Software is
+    furnished to do so, subject to the following conditions:
+ 
+    The above copyright notice and this permission notice shall be included in
+    all copies or substantial portions of the Software.
+ 
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+    OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+    THE SOFTWARE.
+*/
+
+#ifndef AJK_PIN_DETECT_H
+#define AJK_PIN_DETECT_H
+
+#ifndef MBED_H
+#include "mbed.h"
+#endif
+
+#ifndef PINDETECT_PIN_ASSTERED
+#define PINDETECT_PIN_ASSTERED   1
+#endif
+
+#ifndef PINDETECT_SAMPLE_PERIOD
+#define PINDETECT_SAMPLE_PERIOD 20000
+#endif
+
+#ifndef PINDETECT_ASSERT_COUNT  
+#define PINDETECT_ASSERT_COUNT  1
+#endif
+
+#ifndef PINDETECT_HOLD_COUNT
+#define PINDETECT_HOLD_COUNT    50
+#endif
+
+namespace AjK {
+
+/** PinDetect adds mechanical switch debouncing to DigitialIn and interrupt callbacks.
+ *
+ * This is done by sampling the specified pin at regular intervals and detecting any
+ * change of state ( 0 -> 1 or 1 -> 0 ). When a state change is detected the attached
+ * callback handler is called. Additionally, if the pin stays in the same state after
+ * a state change for a defined period of time, an extra callback is made allowing a
+ * program to detect when a "key is pressed and held down" rather than a momentary
+ * key/switch press.
+ *
+ * All parameters are customisable which include:-
+ *  <ul>
+ *  <li> The sampling frequency. </li>
+ *  <li> The number of continuous samples until a state change is detected. </li> 
+ *  <li> The number of continuous samples until a key is assumed held after a state change. </li>
+ *  <li> The logic level which is assumed to be asserted (0volts or +volts). </li>
+ *  </ul>
+ *
+ * Only callbacks that have been attached will be called by the library.
+ *
+ * Example:
+ * @code
+ * #include "mbed.h"
+ * #include "PinDetect.h"
+ *
+ * PinDetect  pin( p30 );
+ * DigitialOut led1( LED1 );
+ * DigitialOut led2( LED2 );
+ * DigitialOut led3( LED3 );
+ * DigitialOut led4( LED4 );
+ *
+ * void keyPressed( void ) {
+ *     led2 = 1;
+ *     led3 = 0;
+ *     led4 = 0;
+ * }
+ *
+ * void keyReleased( void ) {
+ *     led2 = 0;
+ *     led3 = 0;
+ *     led4 = 0;
+ * }
+ *
+ * void keyPressedHeld( void ) {
+ *     led3 = 1;
+ * }
+ *
+ * void keyReleasedHeld( void ) {
+ *     led4 = 1;
+ * }
+ *
+ * int main() {
+ *
+ *     pin.mode( PullDown );
+ *     pin.attach_asserted( &keyPressed );
+ *     pin.attach_deasserted( &keyReleased );
+ *     pin.attach_asserted_held( &keyPressedHeld );
+ *     pin.attach_deasserted_held( &keyReleasedHeld );
+ *
+ *     // Sampling does not begin until you set a frequency.
+ *     // The default is 20ms. If you want a different frequency
+ *     // then pass the period in microseconds for example, for 10ms :-
+ *     //     pin.setSampleFrequency( 10000 );
+ *     //
+ *     pin.setSampleFrequency(); // Defaults to 20ms.
+ *
+ *     while( 1 ) {
+ *         led1 = !led1;
+ *         wait( 0.2 );
+ *     }
+ * }
+ * @endcode
+ *
+ * This example will flash led1 in a similar to a standard starting program.
+ *
+ * Applying a "1" (switch on) to pin 30 will switch on led2, removing the "1" to "0"
+ * (switch off) led2 goes out. Holding the "switch" at one for one second will switch
+ * on led3. An unasserted P30 (switched off) will, after one second illuminate led4
+ * when the deasserted calledback is called.
+ *
+ * The above is a very basic introduction. For more details:-
+ * @see example.h
+ */
+class PinDetect {
+
+protected:
+    DigitalIn   *_in;
+    Ticker      *_ticker;
+    int         _prevState;
+    int         _currentStateCounter;
+    int         _sampleTime;
+    int         _assertValue;
+    int         _samplesTillAssertReload;
+    int         _samplesTillAssert;
+    int         _samplesTillHeldReload;
+    int         _samplesTillHeld;
+    FunctionPointer _callbackAsserted;
+    FunctionPointer _callbackDeasserted;
+    FunctionPointer _callbackAssertedHeld;
+    FunctionPointer _callbackDeassertedHeld;
+    
+    /** initialise class
+     *
+     * @param PinName p is a valid pin that supports DigitalIn
+     * @param PinMode m The mode the DigitalIn should use.
+     */
+    void init(PinName p, PinMode m) {
+        _sampleTime              = PINDETECT_SAMPLE_PERIOD;
+        _samplesTillAssert       = PINDETECT_ASSERT_COUNT;
+        _samplesTillHeld         = 0;
+        _samplesTillAssertReload = PINDETECT_ASSERT_COUNT;
+        _samplesTillHeldReload   = PINDETECT_HOLD_COUNT;
+        _assertValue             = PINDETECT_PIN_ASSTERED;
+        
+        _in = new DigitalIn( p );
+        _in->mode( m );        
+        _prevState = _in->read();        
+        _ticker = new Ticker;
+    }
+    
+public:
+
+    friend class Ticker;
+    
+    PinDetect() { error("You must supply a PinName"); }
+
+    /** PinDetect constructor
+     *
+     * By default the PinMode is set to PullDown.
+     *
+     * @see http://mbed.org/handbook/DigitalIn
+     * @param p PinName is a valid pin that supports DigitalIn
+     */    
+    PinDetect(PinName p) {
+        init( p, PullUp );
+    }
+
+    /** PinDetect constructor
+     *
+     * @see http://mbed.org/handbook/DigitalIn
+     * @param PinName p is a valid pin that supports DigitalIn
+     * @param PinMode m The mode the DigitalIn should use.
+     */    
+    PinDetect(PinName p, PinMode m) {
+        init( p, m );
+    }
+    
+    /** PinDetect destructor
+     */    
+    ~PinDetect() {
+        if ( _ticker )  delete( _ticker );
+        if ( _in )      delete( _in );
+    }
+    
+    /** Set the sampling time in microseconds.
+     *
+     * @param int The time between pin samples in microseconds.
+     */
+    void setSampleFrequency(int i = PINDETECT_SAMPLE_PERIOD) { 
+        _sampleTime = i; 
+        _prevState  = _in->read();        
+        _ticker->attach_us( this, &PinDetect::isr, _sampleTime );
+    }
+    
+    /** Set the value used as assert.
+     *
+     * Defaults to 1 (ie if pin == 1 then pin asserted).
+     *
+     * @param int New assert value (1 or 0)
+     */
+    void setAssertValue (int i = PINDETECT_PIN_ASSTERED) { _assertValue = i & 1; }
+    
+    /** Set the number of continuous samples until assert assumed.
+     *
+     * Defaults to 1 (1 * sample frequency).
+     *
+     * @param int The number of continuous samples until assert assumed.
+     */    
+    void setSamplesTillAssert(int i) { _samplesTillAssertReload = i; }
+    
+    /** Set the number of continuous samples until held assumed.
+     *
+     * Defaults to 50 * sample frequency.
+     *
+     * @param int The number of continuous samples until held assumed.
+     */    
+    void setSamplesTillHeld(int i) { _samplesTillHeldReload = i; }
+    
+    /** Set the pin mode.
+     *
+     * @see http://mbed.org/projects/libraries/api/mbed/trunk/DigitalInOut#DigitalInOut.mode
+     * @param PinMode m The mode to pass on to the DigitalIn
+     */
+    void mode(PinMode m) { _in->mode( m ); }
+    
+    /** Attach a callback function 
+     *
+     * @code
+     *
+     * DigitalOut led1( LED1 );
+     * PinDetect pin( p30 );
+     *
+     * void myCallback( void ) {
+     *   led1 = 1;
+     * };
+     * 
+     * main() {
+     *     pin.attach_asserted( &myCallback );
+     * }
+     *
+     * @endcode
+     *
+     * Call this function when a pin is asserted.
+     * @param function A C function pointer
+     */
+    void attach_asserted(void (*function)(void)) {
+        _callbackAsserted.attach( function );
+    }
+    
+    /** Attach a callback object/method 
+     *
+     * @code
+     *
+     * class Bar {
+     *   public:
+     *     void myCallback( void ) { led1 = 1; }
+     * };
+     *
+     * DigitalOut led1( LED1 );
+     * PinDetect pin( p30 );
+     * Bar bar;
+     *
+     * main() {
+     *     pin.attach_asserted( &bar, &Bar::myCallback );
+     * }
+     *
+     * @endcode
+     *
+     * Call this function when a pin is asserted.
+     * @param object An object that conatins the callback method.
+     * @param method The method within the object to call.
+     */
+    template<typename T>
+    void attach_asserted(T *object, void (T::*member)(void)) {
+        _callbackAsserted.attach( object, member );        
+    }
+    
+    /** Attach a callback function 
+     *
+     * @code
+     *
+     * DigitalOut led1( LED1 );
+     * PinDetect pin( p30 );
+     *
+     * void myCallback( void ) {
+     *   led1 = 0;
+     * };
+     *
+     * main() {
+     *     pin.attach_deasserted( &myCallback );
+     * }
+     *
+     * @endcode
+     *
+     * Call this function when a pin is deasserted.
+     * @param function A C function pointer
+     */
+    void attach_deasserted(void (*function)(void)) {
+        _callbackDeasserted.attach( function );
+    }
+    
+    /** Attach a callback object/method
+     *
+     * @code
+     *
+     * class Bar {
+     *   public:
+     *     void myCallback( void ) { led1 = 0; }
+     * };
+     *
+     * DigitalOut led1( LED1 );
+     * PinDetect pin( p30 );
+     * Bar bar;
+     * 
+     * main() {
+     *     pin.attach_deasserted( &bar, &Bar::myCallback );
+     * }
+     *
+     * @endcode
+     *
+     * Call this function when a pin is deasserted.
+     * @param object An object that conatins the callback method.
+     * @param method The method within the object to call.
+     */
+    template<typename T>
+    void attach_deasserted(T *object, void (T::*member)(void)) {
+        _callbackDeasserted.attach( object, member );        
+    }
+    
+    /** Attach a callback function 
+     *
+     * @code
+     *
+     * DigitalOut led2( LED2 );
+     * PinDetect pin( p30 );
+     *
+     * void myCallback( void ) {
+     *   led2 = 1;
+     * };
+     *
+     * main() {
+     *     pin.attach_asserted_held( &myCallback );
+     * }
+     *
+     * @endcode
+     *
+     * Call this function when a pin is asserted and held.
+     * @param function A C function pointer
+     */
+    void attach_asserted_held(void (*function)(void)) {
+        _callbackAssertedHeld.attach( function );
+    }
+    
+    /** Attach a callback object/method
+     *
+     * @code
+     *
+     * class Bar {
+     *   public:
+     *     void myCallback( void ) { led2 = 0; }
+     * };
+     *
+     * DigitalOut led2( LED2 );
+     * PinDetect pin( p30 );
+     * Bar bar;
+     * 
+     * main() {
+     *     pin.attach_asserted_held( &bar, &Bar::myCallback );
+     * }
+     *
+     * @endcode
+     *
+     * Call this function when a pin is asserted and held.
+     * @param object An object that conatins the callback method.
+     * @param method The method within the object to call.
+     */
+    template<typename T>
+    void attach_asserted_held(T *object, void (T::*member)(void)) {
+        _callbackAssertedHeld.attach( object, member );        
+    }
+    
+    /** Attach a callback function 
+     *
+     * @code
+     *
+     * DigitalOut led3( LED3 );
+     * PinDetect pin( p30 );
+     *
+     * void myCallback( void ) {
+     *   led3 = 1;
+     * };
+     *
+     * main() {
+     *     pin.attach_deasserted_held( &myCallback );
+     * }
+     *
+     * @endcode
+     *
+     * Call this function when a pin is deasserted and held.
+     * @param function A C function pointer
+     */
+    void attach_deasserted_held(void (*function)(void)) {
+        _callbackDeassertedHeld.attach( function );
+    }
+    
+    /** Attach a callback object/method
+     *
+     * @code
+     *
+     * class Bar {
+     *   public:
+     *     void myCallback( void ) { led3 = 0; }
+     * };
+     *
+     * DigitalOut led3( LED3 );
+     * PinDetect pin( p30 );
+     * Bar bar;
+     * 
+     * main() {
+     *     pin.attach_deasserted_held( &bar, &Bar::myCallback );
+     * }
+     *
+     * @endcode
+     *
+     * Call this function when a pin is deasserted and held.
+     * @param object An object that conatins the callback method.
+     * @param method The method within the object to call.
+     */
+    template<typename T>
+    void attach_deasserted_held(T *object, void (T::*member)(void)) {
+        _callbackDeassertedHeld.attach( object, member );        
+    }
+    
+    /** operator int()
+     *
+     * Read the value of the pin being sampled.
+     */
+    operator int() { return _in->read(); }
+
+protected:    
+    /** The Ticker periodic callback function
+     */
+    void isr(void) {
+        int currentState = _in->read();
+    
+        if ( currentState != _prevState ) {
+            if ( _samplesTillAssert == 0 ) {
+                _prevState = currentState;
+                _samplesTillHeld = _samplesTillHeldReload;
+                if ( currentState == _assertValue ) 
+                    _callbackAsserted.call();
+                else                              
+                    _callbackDeasserted.call();
+            }
+            else {
+                _samplesTillAssert--;
+            }
+        }
+        else {
+            _samplesTillAssert = _samplesTillAssertReload;
+        }
+        
+        if ( _samplesTillHeld ) {
+            if ( _prevState == currentState ) {
+                _samplesTillHeld--;
+                if ( _samplesTillHeld == 0 ) {
+                    if ( currentState == _assertValue ) 
+                        _callbackAssertedHeld.call();
+                    else                              
+                        _callbackDeassertedHeld.call();
+                }
+            }
+            else {
+                _samplesTillHeld = 0;
+            }
+        }
+    }
+    
+};
+
+}; // namespace AjK ends.
+
+using namespace AjK;
+
+#endif
diff -r 000000000000 -r 23d012049941 PinDetect/example.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/PinDetect/example.h	Mon Dec 08 12:31:18 2014 +0000
@@ -0,0 +1,113 @@
+/*
+    Copyright (c) 2010 Andy Kirkham
+ 
+    Permission is hereby granted, free of charge, to any person obtaining a copy
+    of this software and associated documentation files (the "Software"), to deal
+    in the Software without restriction, including without limitation the rights
+    to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+    copies of the Software, and to permit persons to whom the Software is
+    furnished to do so, subject to the following conditions:
+ 
+    The above copyright notice and this permission notice shall be included in
+    all copies or substantial portions of the Software.
+ 
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+    OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+    THE SOFTWARE.
+*/
+
+#ifdef PINDETECT_EXAMPLE_COMPILE
+
+#include "mbed.h"
+#include "PinDetect.h"
+
+PinDetect  pin ( p21  );
+DigitalOut led1( LED1 );
+DigitalOut led2( LED2 );
+DigitalOut led3( LED3 );
+DigitalOut led4( LED4 );
+
+/*
+ * Note, the PinDetect can be defined thus:-
+ *     PinDetect pin( p21, PullDown );
+ * This allows you to specify the DigitalIn pinmode
+ * when you create the PinDetect object. This means
+ * using pin.mode() later is then no longer required.
+ */
+
+// C function callbacks follow.
+
+void keyPressed( void ) {
+    led2 = 1;
+    led3 = 0;
+    led4 = 0;
+}
+
+void keyReleased( void ) {
+    led2 = 0;
+    led3 = 0;
+    led4 = 0;
+}
+
+void keyPressedHeld( void ) {
+    led3 = 1;
+}
+
+void keyReleasedHeld( void ) {
+    led4 = 1;
+}
+
+// The main program.
+
+int main() {
+
+    pin.mode( PullDown );
+    pin.attach_asserted( &keyPressed );
+    pin.attach_deasserted( &keyReleased );
+    pin.attach_asserted_held( &keyPressedHeld );
+    
+    // This callback will often be of little use as it's
+    // called after every assertion/deassertion. However,
+    // it's provided for completeness. You may find a use
+    // for it. If not, just don't attach a callback and it
+    // will not activate.
+    pin.attach_deasserted_held( &keyReleasedHeld );
+    
+    // You can define how many continuous samples must be
+    // asserted before the attach_asserted() function is called.
+    //     pin.setSamplesTillAssert( 10 );
+    // This would mean 10 * 20ms debounce time = 200ms.
+
+    // You can define how many continuous samples must be
+    // asserted before the attach_asserted_held() function is called.
+    //     pin.setSamplesTillHeld( 200 );
+    // This would mean 200 * 20ms debounce time = 2seconds.
+
+    // By default, "asserted" assumes the pin going high from 0volts to 5volts
+    // and deasserted assumes going from 5volts to 0volts. You can invert this
+    // logic so that going to 0volts is asserted and going to 5volts is deasserted
+    // using this setup function:-
+    //     pin.setAssertValue( 0 );
+
+    // Sampling does NOT begin until you set the frequency. So, until
+    // you call this function NO callbacks will be made. With no arguments
+    // passed the default is 20000 microseconds (20ms). Specifiy the sampling
+    // period in microseconds if you want a different value to 20ms.
+    // For example, for a sampling period of 10ms do:-
+    //     pin.setSampleFrequency( 10000 );
+    // Note, if you change the sampling frequency you will probably also
+    // want to change the number of samples till assert and held as show
+    // above.
+    pin.setSampleFrequency(); // Defaults to 20ms.
+
+    while( 1 ) {
+        led1 = !led1;
+        wait( 0.2 );
+    }
+}
+
+#endif
diff -r 000000000000 -r 23d012049941 USBDevice.lib
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/USBDevice.lib	Mon Dec 08 12:31:18 2014 +0000
@@ -0,0 +1,1 @@
+http://developer.mbed.org/users/mbed_official/code/USBDevice/#dfe51ad5cacf
diff -r 000000000000 -r 23d012049941 main.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Mon Dec 08 12:31:18 2014 +0000
@@ -0,0 +1,103 @@
+/**
+ *  USB COPY&PASTE Keyboard
+ *
+ *  This is a USB keyboard device for copy&paste freak.
+ *  http://www.dm9records.com/index.php?cID=144
+ *
+ *  @author hsgw(http://twitter.com/hsgw)
+ *  @since  2014/12/08
+ */
+
+#include "mbed.h"
+#include "USBKeyboard.h"
+#include "PinDetect.h"
+
+// SW Pin Setting
+#define SW_SELECT_ALL  D2
+#define SW_COPY        D3
+#define SW_PASTE       D4
+
+USBKeyboard keyboard;
+
+PinDetect swSelectAll(SW_SELECT_ALL);
+PinDetect swCopy(SW_COPY);
+PinDetect swPaste(SW_PASTE);
+
+DigitalOut ledSelectAll(LED_RED);
+DigitalOut ledCopy(LED_GREEN);
+DigitalOut ledPaste(LED_BLUE);
+
+bool selectSwState = false;
+bool copySwState = false;
+bool pasteSwState = false;
+
+unsigned int pressedSelectCount = 0;
+unsigned int pressedCopyCount = 0;
+unsigned int pressedPasteCount = 0;
+
+// callback for pressed sw
+void pressedSelectAll()
+{
+    ledSelectAll = 0;
+    selectSwState = true;
+}
+
+void pressedCopy()
+{
+    ledCopy = 0;
+    copySwState = true;
+}
+
+void pressedPaste()
+{
+    ledPaste = 0;
+    pasteSwState = true;
+}
+
+int main(void)
+{
+    // leds off
+    ledSelectAll = 1;
+    ledCopy = 1;
+    ledPaste = 1;
+
+    // set pin mode to internal PullUp
+    swSelectAll.mode(PullUp);
+    swCopy.mode(PullUp);
+    swPaste.mode(PullUp);
+
+    // attach callback when sw pressed(detecting change of state 1->0)
+    swSelectAll.attach_deasserted(&pressedSelectAll);
+    swCopy.attach_deasserted(&pressedCopy);
+    swPaste.attach_deasserted(&pressedPaste);
+
+    // begin sampling switches
+    swSelectAll.setSampleFrequency();
+    swCopy.setSampleFrequency();
+    swPaste.setSampleFrequency();
+
+    printf("USB COPY&PASTE Keyboard start!\n");
+    while(1) {
+        if(selectSwState) {
+            pressedSelectCount++;
+            printf("pressed select: %dtimes\n",pressedSelectCount);
+            keyboard.keyCode('a', KEY_CTRL);    // send ctrl+a
+            selectSwState = false;
+            ledSelectAll = 1;
+        }
+        if(copySwState) {
+            pressedCopyCount++;
+            printf("pressed copy: %dtimes\n",pressedCopyCount);
+            keyboard.keyCode('c', KEY_CTRL);    // send ctrl+c
+            copySwState = false;
+            ledCopy = 1;
+        }
+        if(pasteSwState) {
+            pressedPasteCount++;
+            printf("pressed paste: %dtimes\n",pressedPasteCount);
+            keyboard.keyCode('v', KEY_CTRL);    // send ctrl+v
+            pasteSwState = false;
+            ledPaste = 1;
+        }
+    }
+}
\ No newline at end of file
diff -r 000000000000 -r 23d012049941 mbed.bld
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Mon Dec 08 12:31:18 2014 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/mbed_official/code/mbed/builds/04dd9b1680ae
\ No newline at end of file