PushButton.cpp

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00033 
00034 #include "PushButton.h"
00035 #include "Peripherals.h"
00036 
00037 void pb_hit_interrupt_fall(void);
00038 
00039 PushButton::PushButton(PinName pin) : interruptButton(pin) {
00040   this->pin = pin;
00041 
00042   interruptButton.mode(PullUp);
00043   // Delay for initial pullup to take effect
00044   wait(0.01f);
00045   // Attach the address of the interrupt handler routine for pushbutton
00046   interruptButton.fall(&pb_hit_interrupt_fall);
00047 }
00048 
00049 //******************************************************************************
00050 bool PushButton::GetButtonFallState(void) { 
00051  return buttonFallState; 
00052 }
00053 
00054 //******************************************************************************
00055 void PushButton::SetButtonFallState(bool state) { 
00056  buttonFallState = state; 
00057 }
00058 
00059 //******************************************************************************
00060 void PushButton::clearButtonFallState(void) { 
00061  buttonFallState = false; 
00062 }
00063 
00064 //******************************************************************************
00065 int PushButton::Read(void) { 
00066  return interruptButton.read(); 
00067 }
00068 
00069 //******************************************************************************
00070 void pb_hit_interrupt_fall(void) {
00071   if (Peripherals::pushButton() != NULL)
00072     Peripherals::pushButton()->SetButtonFallState(true);
00073 }