Diff: main.cpp

Revision:

0:23696056294d

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Wed Oct 29 08:21:59 2014 +0000
@@ -0,0 +1,117 @@
+#include "mbed.h"
+#include "C12832.h"
+
+C12832 lcd(p5, p7, p6, p8, p11);
+
+InterruptIn center(p14);
+Timer timer;
+Ticker ticker;
+
+DigitalOut green(p24);
+DigitalOut red(p23);
+AnalogIn seed(p16);
+
+int allOff();
+int startTimer();
+int startMeasurement();
+int finishMeasurement();
+void tick();
+
+volatile unsigned int newEvent =0; 
+volatile unsigned int event=0, state=0;
+
+unsigned int rnd = 0;
+int rndCounter = 0;
+
+unsigned char nextstate_tab[1][4]=  { 1, 2, 3, 0 };
+
+int(*action[1][4])()= { allOff, startTimer, startMeasurement, finishMeasurement }; 
+
+int allOff()
+{
+    ticker.detach();  
+    green = 1;
+    red  = 1;     
+    return 0;
+}
+
+int startTimer()
+{
+    rnd = rand()%63; 
+    
+    if(rnd < 8)
+    {
+        while(rnd < 8) 
+            rnd = rand()%63; 
+    }
+    
+    green = 0;
+    
+    ticker.attach(&tick, 0.1); 
+    center.disable_irq();
+    return 0;   
+}        
+
+int startMeasurement()
+{
+    timer.start();
+    ticker.detach();
+    return 0;
+} 
+
+int finishMeasurement()
+{
+    timer.stop();
+    rndCounter = 0;
+    lcd.locate(0, 20);
+    lcd.printf("Zeit: %f", timer.read());
+    timer.reset();
+    newEvent = 1;
+    return 0;    
+}
+
+void buttonPressed()
+{
+    newEvent = 1;
+}
+
+void tick()
+{
+    rndCounter++;
+    
+    if(rndCounter == rnd)
+    {
+        green = 1;
+        newEvent = 1; 
+        center.enable_irq();   
+    }
+}
+
+int main() {
+    
+    center.rise(&buttonPressed);
+    
+    lcd.cls();
+    lcd.locate(0, 0);
+    lcd.printf("Reaktionstester");
+    
+    green = 1;
+    red  = 1;
+    
+    newEvent = 0;
+    state=0; 
+    event=0;
+    
+    srand(seed.read_u16());
+    
+    while(1) {
+        
+        if (newEvent)
+        {
+            newEvent =0;
+            (*action[event][state])(); 
+            state=nextstate_tab[event][state];
+        }
+
+    }
+}