Oskar Lopez de Gamboa / PinDetect

Changed to add KL25Z.

Dependents:   ABBlind_hardware_test Tarea_Reloj_mayamira Nucleo_read_button_interrupt_copy SOS_V1

Fork of PinDetect by Andy K

example.h@3:cb6051b90a52, 2014-05-16 (annotated)

Committer:
xeta05
Date:
Fri May 16 07:27:14 2014 +0000
Revision:
3:cb6051b90a52
Parent:
1:611a8f5ac65c 
By default the PinMode was set to PullDown.; This was not compatible with KL25Z platform.; I have changed it to PullDefault that is plattform dependant (For example is set to PullUP for KL25Z and to PullDown for LPC11UXX)

Who changed what in which revision?

UserRevisionLine numberNew contents of line
AjK 0:4f4ccb203a70 1 /*
AjK 0:4f4ccb203a70 2 Copyright (c) 2010 Andy Kirkham
AjK 0:4f4ccb203a70 3
AjK 0:4f4ccb203a70 4 Permission is hereby granted, free of charge, to any person obtaining a copy
AjK 0:4f4ccb203a70 5 of this software and associated documentation files (the "Software"), to deal
AjK 0:4f4ccb203a70 6 in the Software without restriction, including without limitation the rights
AjK 0:4f4ccb203a70 7 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
AjK 0:4f4ccb203a70 8 copies of the Software, and to permit persons to whom the Software is
AjK 0:4f4ccb203a70 9 furnished to do so, subject to the following conditions:
AjK 0:4f4ccb203a70 10
AjK 0:4f4ccb203a70 11 The above copyright notice and this permission notice shall be included in
AjK 0:4f4ccb203a70 12 all copies or substantial portions of the Software.
AjK 0:4f4ccb203a70 13
AjK 0:4f4ccb203a70 14 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
AjK 0:4f4ccb203a70 15 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
AjK 0:4f4ccb203a70 16 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AjK 0:4f4ccb203a70 17 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
AjK 0:4f4ccb203a70 18 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
AjK 0:4f4ccb203a70 19 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
AjK 0:4f4ccb203a70 20 THE SOFTWARE.
AjK 0:4f4ccb203a70 21 */
AjK 0:4f4ccb203a70 22
AjK 0:4f4ccb203a70 23 #ifdef PINDETECT_EXAMPLE_COMPILE
AjK 0:4f4ccb203a70 24
AjK 0:4f4ccb203a70 25 #include "mbed.h"
AjK 0:4f4ccb203a70 26 #include "PinDetect.h"
AjK 0:4f4ccb203a70 27
AjK 1:611a8f5ac65c 28 PinDetect pin ( p21 );
AjK 0:4f4ccb203a70 29 DigitalOut led1( LED1 );
AjK 0:4f4ccb203a70 30 DigitalOut led2( LED2 );
AjK 0:4f4ccb203a70 31 DigitalOut led3( LED3 );
AjK 0:4f4ccb203a70 32 DigitalOut led4( LED4 );
AjK 0:4f4ccb203a70 33
AjK 1:611a8f5ac65c 34 /*
AjK 1:611a8f5ac65c 35 * Note, the PinDetect can be defined thus:-
AjK 1:611a8f5ac65c 36 * PinDetect pin( p21, PullDown );
AjK 1:611a8f5ac65c 37 * This allows you to specify the DigitalIn pinmode
AjK 1:611a8f5ac65c 38 * when you create the PinDetect object. This means
AjK 1:611a8f5ac65c 39 * using pin.mode() later is then no longer required.
AjK 1:611a8f5ac65c 40 */
AjK 1:611a8f5ac65c 41
AjK 1:611a8f5ac65c 42 // C function callbacks follow.
AjK 1:611a8f5ac65c 43
AjK 0:4f4ccb203a70 44 void keyPressed( void ) {
AjK 0:4f4ccb203a70 45 led2 = 1;
AjK 0:4f4ccb203a70 46 led3 = 0;
AjK 0:4f4ccb203a70 47 led4 = 0;
AjK 0:4f4ccb203a70 48 }
AjK 0:4f4ccb203a70 49
AjK 0:4f4ccb203a70 50 void keyReleased( void ) {
AjK 0:4f4ccb203a70 51 led2 = 0;
AjK 0:4f4ccb203a70 52 led3 = 0;
AjK 0:4f4ccb203a70 53 led4 = 0;
AjK 0:4f4ccb203a70 54 }
AjK 0:4f4ccb203a70 55
AjK 0:4f4ccb203a70 56 void keyPressedHeld( void ) {
AjK 0:4f4ccb203a70 57 led3 = 1;
AjK 0:4f4ccb203a70 58 }
AjK 0:4f4ccb203a70 59
AjK 0:4f4ccb203a70 60 void keyReleasedHeld( void ) {
AjK 0:4f4ccb203a70 61 led4 = 1;
AjK 0:4f4ccb203a70 62 }
AjK 0:4f4ccb203a70 63
AjK 1:611a8f5ac65c 64 // The main program.
AjK 1:611a8f5ac65c 65
AjK 0:4f4ccb203a70 66 int main() {
AjK 0:4f4ccb203a70 67
AjK 0:4f4ccb203a70 68 pin.mode( PullDown );
AjK 0:4f4ccb203a70 69 pin.attach_asserted( &keyPressed );
AjK 0:4f4ccb203a70 70 pin.attach_deasserted( &keyReleased );
AjK 0:4f4ccb203a70 71 pin.attach_asserted_held( &keyPressedHeld );
AjK 0:4f4ccb203a70 72
AjK 0:4f4ccb203a70 73 // This callback will often be of little use as it's
AjK 0:4f4ccb203a70 74 // called after every assertion/deassertion. However,
AjK 0:4f4ccb203a70 75 // it's provided for completeness. You may find a use
AjK 0:4f4ccb203a70 76 // for it. If not, just don't attach a callback and it
AjK 0:4f4ccb203a70 77 // will not activate.
AjK 0:4f4ccb203a70 78 pin.attach_deasserted_held( &keyReleasedHeld );
AjK 0:4f4ccb203a70 79
AjK 0:4f4ccb203a70 80 // You can define how many continuous samples must be
AjK 0:4f4ccb203a70 81 // asserted before the attach_asserted() function is called.
AjK 0:4f4ccb203a70 82 // pin.setSamplesTillAssert( 10 );
AjK 0:4f4ccb203a70 83 // This would mean 10 * 20ms debounce time = 200ms.
AjK 0:4f4ccb203a70 84
AjK 0:4f4ccb203a70 85 // You can define how many continuous samples must be
AjK 0:4f4ccb203a70 86 // asserted before the attach_asserted_held() function is called.
AjK 0:4f4ccb203a70 87 // pin.setSamplesTillHeld( 200 );
AjK 0:4f4ccb203a70 88 // This would mean 200 * 20ms debounce time = 2seconds.
AjK 0:4f4ccb203a70 89
AjK 0:4f4ccb203a70 90 // By default, "asserted" assumes the pin going high from 0volts to 5volts
AjK 0:4f4ccb203a70 91 // and deasserted assumes going from 5volts to 0volts. You can invert this
AjK 0:4f4ccb203a70 92 // logic so that going to 0volts is asserted and going to 5volts is deasserted
AjK 0:4f4ccb203a70 93 // using this setup function:-
AjK 0:4f4ccb203a70 94 // pin.setAssertValue( 0 );
AjK 0:4f4ccb203a70 95
AjK 0:4f4ccb203a70 96 // Sampling does NOT begin until you set the frequency. So, until
AjK 0:4f4ccb203a70 97 // you call this function NO callbacks will be made. With no arguments
AjK 0:4f4ccb203a70 98 // passed the default is 20000 microseconds (20ms). Specifiy the sampling
AjK 0:4f4ccb203a70 99 // period in microseconds if you want a different value to 20ms.
AjK 0:4f4ccb203a70 100 // For example, for a sampling period of 10ms do:-
AjK 0:4f4ccb203a70 101 // pin.setSampleFrequency( 10000 );
AjK 0:4f4ccb203a70 102 // Note, if you change the sampling frequency you will probably also
AjK 0:4f4ccb203a70 103 // want to change the number of samples till assert and held as show
AjK 0:4f4ccb203a70 104 // above.
AjK 0:4f4ccb203a70 105 pin.setSampleFrequency(); // Defaults to 20ms.
AjK 0:4f4ccb203a70 106
AjK 0:4f4ccb203a70 107 while( 1 ) {
AjK 0:4f4ccb203a70 108 led1 = !led1;
AjK 0:4f4ccb203a70 109 wait( 0.2 );
AjK 0:4f4ccb203a70 110 }
AjK 0:4f4ccb203a70 111 }
AjK 0:4f4ccb203a70 112
AjK 0:4f4ccb203a70 113 #endif