Diff: DebouncedIn.cpp

Revision:

1:7e4accb72e06

Parent:

0:672241227e0d

Child:

2:b3d5973afde7

--- a/DebouncedIn.cpp	Fri Nov 27 16:05:32 2009 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,93 +0,0 @@
-#include "DebouncedIn.h"
-#include "mbed.h"
-
-/*
- * Constructor
- */
-DebouncedIn::DebouncedIn(PinName in) 
-    : _in(in) {    
-        
-    // reset all the flags and counters    
-    _samples = 0;
-    _output = 0;
-    _output_last = 0;
-    _rising_flag = 0;
-    _falling_flag = 0;
-    _state_counter = 0;
-    
-    // Attach ticker
-    _ticker.attach(this, &DebouncedIn::_sample, 0.005);     
-}
-  
-void DebouncedIn::_sample() {
-
-    // take a sample
-    _samples = _samples >> 1; // shift left
-      
-    if (_in) {
-        _samples |= 0x80;
-    }  
-      
-    // examine the sample window, look for steady state
-    if (_samples == 0x00) {
-        _output = 0;
-    } 
-    else if (_samples == 0xFF) {
-        _output = 1;
-    }
-
-
-    // Rising edge detection
-    if ((_output == 1) && (_output_last == 0)) {
-        _rising_flag++;
-        _state_counter = 0;
-    }
-
-    // Falling edge detection
-    else if ((_output == 0) && (_output_last == 1)) {
-        _falling_flag++;
-        _state_counter = 0;
-    }
-    
-    // steady state
-    else {
-        _state_counter++;
-    }
-    
-   // update the output
-    _output_last = _output;
-    
-}
-
-
-
-// return number of rising edges
-int DebouncedIn::rising(void) {
-    int return_value = _rising_flag; 
-    _rising_flag = 0;
-    return(return_value);
-}
-
-// return number of falling edges
-int DebouncedIn::falling(void) {
-    int return_value = _falling_flag; 
-    _falling_flag = 0;
-    return(return_value);
-}
-
-// return number of ticsk we've bene steady for
-int DebouncedIn::steady(void) {
-return(_state_counter);
-}
-
-// return the debounced status
-int DebouncedIn::read(void) {
-    return(_output);
-}
-
-// shorthand for read()
-DebouncedIn::operator int() {
-    return read();
-}
-
-