Revision 0:1081f9802d9d, committed 2014-11-05

Comitter:

philipp19961

Date:

Wed Nov 05 07:40:38 2014 +0000

Commit message:

ReaktionsTester mit Pointer like WedlMethode

Changed in this revision

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/C12832_lcd.lib	Wed Nov 05 07:40:38 2014 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/dreschpe/code/C12832_lcd/#c9afe58d786a

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/DebouncedIn.cpp	Wed Nov 05 07:40:38 2014 +0000
@@ -0,0 +1,93 @@
+#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();
+}
+
+

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/DebouncedIn.h	Wed Nov 05 07:40:38 2014 +0000
@@ -0,0 +1,31 @@
+#include "mbed.h"
+
+    class DebouncedIn {
+        public:      
+             DebouncedIn(PinName in);
+
+             int read (void);
+             operator int();
+              
+             int rising(void);
+             int falling(void);
+             int steady(void);
+              
+        private :    
+               // objects
+               DigitalIn _in;    
+               Ticker _ticker;
+
+               // function to take a sample, and update flags
+               void _sample(void);
+
+               // counters and flags
+               int _samples;
+               int _output;
+               int _output_last;
+               int _rising_flag;
+               int _falling_flag;
+               int _state_counter;
+
+    };
+    
\ No newline at end of file

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Wed Nov 05 07:40:38 2014 +0000
@@ -0,0 +1,135 @@
+#include "mbed.h"
+#include "DebouncedIn.h"
+#include "C12832_lcd.h"
+
+Ticker tick;
+C12832_LCD lcd;
+DigitalOut led1(LED1);
+DigitalOut led2(LED2);
+DigitalOut led3(LED3);
+DigitalOut led4(LED4);
+
+DebouncedIn button(p12);
+
+int init();
+int ledsOn();
+int auswertung();
+
+int(*action[3])()= {init, ledsOn, auswertung };  
+
+volatile int event=0;
+float initTime = 0;
+bool startreaction;
+float reactionTime = 0;
+
+void reactionTick();
+void startTime();
+
+
+void RandomTime()
+{
+    float min = 0.8 / 6.3;
+    float max = 6.2 / 6.3;
+ 
+    initTime = min + ((float)rand()/RAND_MAX) * (max - min) * 6.3;
+}
+
+void startTimerStart()
+{
+    RandomTime();
+    tick.attach(&startTime, 0.1);
+}
+
+void stopTimer()        
+{ 
+    tick.detach();
+}
+
+void ledsEin()   
+{ 
+    led1 = 1;
+    led2 = 1;
+    led3 = 1;
+    led4 = 1;
+}
+
+void ledsAus()   
+{ 
+    led1 = 0;
+    led2 = 0;
+    led3 = 0;
+    led4 = 0;
+}
+
+int init()
+{
+    startreaction = false;
+    ledsAus();    
+    lcd.cls();
+    lcd.locate(0, 0);
+    lcd.printf("Reaktionstester: ");
+    return 0;    
+}
+
+int ledsOn()
+{
+    ledsEin();
+    lcd.printf("Running: ");
+    startTimerStart();
+    return 0;    
+}
+
+int auswertung()
+{
+    if(startreaction)
+    {
+        stopTimer();
+        lcd.locate(0, 10);
+        lcd.printf("Zeit: %.3f s", reactionTime);
+    }
+    else
+    {
+        stopTimer();
+        lcd.locate(0, 10);
+        lcd.printf("Zu frueh!!!!");
+    }
+    event = -1;
+    return 0;    
+}
+
+void reactionTimerStart()
+{
+    reactionTime = 0;
+    tick.attach(&reactionTick, 0.001);
+}
+
+void startTime()
+{
+    initTime -= 0.1;
+    
+    if(initTime <= 0)
+    {
+        startreaction = true;
+        ledsAus();
+        stopTimer();
+        reactionTimerStart();
+    }
+}
+
+void reactionTick()
+{
+    reactionTime += 0.001;
+}
+
+int main()
+{    
+    (action[event])();
+    
+    while(1) {  
+        if (button.rising()) {
+            event++;
+            (action[event])();
+        }
+    }
+}
+

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Wed Nov 05 07:40:38 2014 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/mbed_official/code/mbed/builds/031413cf7a89
\ No newline at end of file