Takuya Urakawa / Mbed 2 deprecated USBCopyPasteKey

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

Dependencies:   USBDevice mbed

PinDetect/example.h@0:23d012049941, 2014-12-08 (annotated)

Committer:
hsgw
Date:
Mon Dec 08 12:31:18 2014 +0000
Revision:
0:23d012049941
1st commit

Who changed what in which revision?

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hsgw 0:23d012049941 1 /*
hsgw 0:23d012049941 2 Copyright (c) 2010 Andy Kirkham
hsgw 0:23d012049941 3
hsgw 0:23d012049941 4 Permission is hereby granted, free of charge, to any person obtaining a copy
hsgw 0:23d012049941 5 of this software and associated documentation files (the "Software"), to deal
hsgw 0:23d012049941 6 in the Software without restriction, including without limitation the rights
hsgw 0:23d012049941 7 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
hsgw 0:23d012049941 8 copies of the Software, and to permit persons to whom the Software is
hsgw 0:23d012049941 9 furnished to do so, subject to the following conditions:
hsgw 0:23d012049941 10
hsgw 0:23d012049941 11 The above copyright notice and this permission notice shall be included in
hsgw 0:23d012049941 12 all copies or substantial portions of the Software.
hsgw 0:23d012049941 13
hsgw 0:23d012049941 14 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
hsgw 0:23d012049941 15 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
hsgw 0:23d012049941 16 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
hsgw 0:23d012049941 17 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
hsgw 0:23d012049941 18 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
hsgw 0:23d012049941 19 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
hsgw 0:23d012049941 20 THE SOFTWARE.
hsgw 0:23d012049941 21 */
hsgw 0:23d012049941 22
hsgw 0:23d012049941 23 #ifdef PINDETECT_EXAMPLE_COMPILE
hsgw 0:23d012049941 24
hsgw 0:23d012049941 25 #include "mbed.h"
hsgw 0:23d012049941 26 #include "PinDetect.h"
hsgw 0:23d012049941 27
hsgw 0:23d012049941 28 PinDetect pin ( p21 );
hsgw 0:23d012049941 29 DigitalOut led1( LED1 );
hsgw 0:23d012049941 30 DigitalOut led2( LED2 );
hsgw 0:23d012049941 31 DigitalOut led3( LED3 );
hsgw 0:23d012049941 32 DigitalOut led4( LED4 );
hsgw 0:23d012049941 33
hsgw 0:23d012049941 34 /*
hsgw 0:23d012049941 35 * Note, the PinDetect can be defined thus:-
hsgw 0:23d012049941 36 * PinDetect pin( p21, PullDown );
hsgw 0:23d012049941 37 * This allows you to specify the DigitalIn pinmode
hsgw 0:23d012049941 38 * when you create the PinDetect object. This means
hsgw 0:23d012049941 39 * using pin.mode() later is then no longer required.
hsgw 0:23d012049941 40 */
hsgw 0:23d012049941 41
hsgw 0:23d012049941 42 // C function callbacks follow.
hsgw 0:23d012049941 43
hsgw 0:23d012049941 44 void keyPressed( void ) {
hsgw 0:23d012049941 45 led2 = 1;
hsgw 0:23d012049941 46 led3 = 0;
hsgw 0:23d012049941 47 led4 = 0;
hsgw 0:23d012049941 48 }
hsgw 0:23d012049941 49
hsgw 0:23d012049941 50 void keyReleased( void ) {
hsgw 0:23d012049941 51 led2 = 0;
hsgw 0:23d012049941 52 led3 = 0;
hsgw 0:23d012049941 53 led4 = 0;
hsgw 0:23d012049941 54 }
hsgw 0:23d012049941 55
hsgw 0:23d012049941 56 void keyPressedHeld( void ) {
hsgw 0:23d012049941 57 led3 = 1;
hsgw 0:23d012049941 58 }
hsgw 0:23d012049941 59
hsgw 0:23d012049941 60 void keyReleasedHeld( void ) {
hsgw 0:23d012049941 61 led4 = 1;
hsgw 0:23d012049941 62 }
hsgw 0:23d012049941 63
hsgw 0:23d012049941 64 // The main program.
hsgw 0:23d012049941 65
hsgw 0:23d012049941 66 int main() {
hsgw 0:23d012049941 67
hsgw 0:23d012049941 68 pin.mode( PullDown );
hsgw 0:23d012049941 69 pin.attach_asserted( &keyPressed );
hsgw 0:23d012049941 70 pin.attach_deasserted( &keyReleased );
hsgw 0:23d012049941 71 pin.attach_asserted_held( &keyPressedHeld );
hsgw 0:23d012049941 72
hsgw 0:23d012049941 73 // This callback will often be of little use as it's
hsgw 0:23d012049941 74 // called after every assertion/deassertion. However,
hsgw 0:23d012049941 75 // it's provided for completeness. You may find a use
hsgw 0:23d012049941 76 // for it. If not, just don't attach a callback and it
hsgw 0:23d012049941 77 // will not activate.
hsgw 0:23d012049941 78 pin.attach_deasserted_held( &keyReleasedHeld );
hsgw 0:23d012049941 79
hsgw 0:23d012049941 80 // You can define how many continuous samples must be
hsgw 0:23d012049941 81 // asserted before the attach_asserted() function is called.
hsgw 0:23d012049941 82 // pin.setSamplesTillAssert( 10 );
hsgw 0:23d012049941 83 // This would mean 10 * 20ms debounce time = 200ms.
hsgw 0:23d012049941 84
hsgw 0:23d012049941 85 // You can define how many continuous samples must be
hsgw 0:23d012049941 86 // asserted before the attach_asserted_held() function is called.
hsgw 0:23d012049941 87 // pin.setSamplesTillHeld( 200 );
hsgw 0:23d012049941 88 // This would mean 200 * 20ms debounce time = 2seconds.
hsgw 0:23d012049941 89
hsgw 0:23d012049941 90 // By default, "asserted" assumes the pin going high from 0volts to 5volts
hsgw 0:23d012049941 91 // and deasserted assumes going from 5volts to 0volts. You can invert this
hsgw 0:23d012049941 92 // logic so that going to 0volts is asserted and going to 5volts is deasserted
hsgw 0:23d012049941 93 // using this setup function:-
hsgw 0:23d012049941 94 // pin.setAssertValue( 0 );
hsgw 0:23d012049941 95
hsgw 0:23d012049941 96 // Sampling does NOT begin until you set the frequency. So, until
hsgw 0:23d012049941 97 // you call this function NO callbacks will be made. With no arguments
hsgw 0:23d012049941 98 // passed the default is 20000 microseconds (20ms). Specifiy the sampling
hsgw 0:23d012049941 99 // period in microseconds if you want a different value to 20ms.
hsgw 0:23d012049941 100 // For example, for a sampling period of 10ms do:-
hsgw 0:23d012049941 101 // pin.setSampleFrequency( 10000 );
hsgw 0:23d012049941 102 // Note, if you change the sampling frequency you will probably also
hsgw 0:23d012049941 103 // want to change the number of samples till assert and held as show
hsgw 0:23d012049941 104 // above.
hsgw 0:23d012049941 105 pin.setSampleFrequency(); // Defaults to 20ms.
hsgw 0:23d012049941 106
hsgw 0:23d012049941 107 while( 1 ) {
hsgw 0:23d012049941 108 led1 = !led1;
hsgw 0:23d012049941 109 wait( 0.2 );
hsgw 0:23d012049941 110 }
hsgw 0:23d012049941 111 }
hsgw 0:23d012049941 112
hsgw 0:23d012049941 113 #endif