Henk Meewis / Mbed 2 deprecated USB_serial_LED_controller

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Dependencies:   mbed

Fork of frdm_echo by Henk Meewis

PushButtons.cpp@15:a32db434af65, 2014-04-25 (annotated)

Committer:
silverpanda
Date:
Fri Apr 25 16:22:54 2014 +0000
Revision:
15:a32db434af65
Parent:
13:019e24491f32 
debugged

Who changed what in which revision?

UserRevisionLine numberNew contents of line
silverpanda 13:019e24491f32 1 #include "mbed.h"
silverpanda 13:019e24491f32 2 #include "PushButtons.h"
silverpanda 13:019e24491f32 3
silverpanda 13:019e24491f32 4 PushButtons::PushButtons()
silverpanda 13:019e24491f32 5 {
silverpanda 13:019e24491f32 6 // construct instances for push buttons
silverpanda 13:019e24491f32 7 sw2 = new DigitalIn(SW2);
silverpanda 13:019e24491f32 8 sw3 = new DigitalIn(SW3);
silverpanda 13:019e24491f32 9
silverpanda 13:019e24491f32 10 // reset push buttons
silverpanda 13:019e24491f32 11 reset(pb2);
silverpanda 13:019e24491f32 12 reset(pb3);
silverpanda 13:019e24491f32 13 }
silverpanda 13:019e24491f32 14 //-----------------------------------------------------------------------------
silverpanda 13:019e24491f32 15
silverpanda 13:019e24491f32 16 bool PushButtons::tick10ms()
silverpanda 13:019e24491f32 17 {
silverpanda 13:019e24491f32 18 // process push button metadata
silverpanda 13:019e24491f32 19 process(pb2);
silverpanda 13:019e24491f32 20 process(pb3);
silverpanda 13:019e24491f32 21
silverpanda 13:019e24491f32 22 return !*sw2 || !*sw3;
silverpanda 13:019e24491f32 23 }
silverpanda 13:019e24491f32 24 //-----------------------------------------------------------------------------
silverpanda 13:019e24491f32 25
silverpanda 13:019e24491f32 26 void PushButtons::reset(ePushButton thisPushButton)
silverpanda 13:019e24491f32 27 {
silverpanda 13:019e24491f32 28 // initiate push button
silverpanda 13:019e24491f32 29 timer[thisPushButton] = 0;
silverpanda 13:019e24491f32 30 justPressed[thisPushButton] = false;
silverpanda 13:019e24491f32 31 oldPressed[thisPushButton] = false;
silverpanda 13:019e24491f32 32 }
silverpanda 13:019e24491f32 33 //-----------------------------------------------------------------------------
silverpanda 13:019e24491f32 34
silverpanda 13:019e24491f32 35 void PushButtons::process(ePushButton thisPushButton)
silverpanda 13:019e24491f32 36 {
silverpanda 13:019e24491f32 37 // check if the push button is pressed
silverpanda 13:019e24491f32 38 bool isPressed = !*getPointer(thisPushButton);
silverpanda 13:019e24491f32 39
silverpanda 13:019e24491f32 40 // update debounce timer
silverpanda 13:019e24491f32 41 if(timer[thisPushButton]) timer[thisPushButton]--;
silverpanda 13:019e24491f32 42
silverpanda 13:019e24491f32 43 // if not in debounce mode
silverpanda 13:019e24491f32 44 else if(isPressed) {
silverpanda 13:019e24491f32 45
silverpanda 13:019e24491f32 46 // "just pressed" is set only once
silverpanda 13:019e24491f32 47 if(!oldPressed[thisPushButton]) justPressed[thisPushButton] = true;
silverpanda 13:019e24491f32 48 timer[thisPushButton] = 5;
silverpanda 13:019e24491f32 49 }
silverpanda 13:019e24491f32 50
silverpanda 13:019e24491f32 51 // remember old state
silverpanda 13:019e24491f32 52 oldPressed[thisPushButton] = isPressed;
silverpanda 13:019e24491f32 53 }
silverpanda 13:019e24491f32 54 //-----------------------------------------------------------------------------
silverpanda 13:019e24491f32 55
silverpanda 13:019e24491f32 56 DigitalIn *PushButtons::getPointer(ePushButton thisPushButton)
silverpanda 13:019e24491f32 57 {
silverpanda 13:019e24491f32 58 DigitalIn *thisPointer = 0;
silverpanda 13:019e24491f32 59 switch(thisPushButton) {
silverpanda 13:019e24491f32 60 case pb2: thisPointer = sw2; break;
silverpanda 13:019e24491f32 61 case pb3: thisPointer = sw3; break;
silverpanda 13:019e24491f32 62 }
silverpanda 13:019e24491f32 63
silverpanda 13:019e24491f32 64 // return pointer to requested push button
silverpanda 13:019e24491f32 65 return thisPointer;
silverpanda 13:019e24491f32 66 }
silverpanda 13:019e24491f32 67 //-----------------------------------------------------------------------------
silverpanda 13:019e24491f32 68
silverpanda 13:019e24491f32 69 bool PushButtons::getJustPressed(ePushButton thisPushButton)
silverpanda 13:019e24491f32 70 {
silverpanda 13:019e24491f32 71 // return state, and then reset
silverpanda 13:019e24491f32 72 bool isJustPressed = justPressed[thisPushButton];
silverpanda 13:019e24491f32 73 justPressed[thisPushButton] = false;
silverpanda 13:019e24491f32 74 return isJustPressed;
silverpanda 13:019e24491f32 75 }
silverpanda 13:019e24491f32 76 //-----------------------------------------------------------------------------
silverpanda 13:019e24491f32 77
silverpanda 13:019e24491f32 78 bool PushButtons::getPressed(ePushButton thisPushButton)
silverpanda 13:019e24491f32 79 {
silverpanda 13:019e24491f32 80 // see if push button is momentary pressed
silverpanda 13:019e24491f32 81 return *getPointer(thisPushButton);
silverpanda 13:019e24491f32 82 }
silverpanda 13:019e24491f32 83 //-----------------------------------------------------------------------------