Diff: timer0.cpp

Revision:

0:8d3e2b74d1d5

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/timer0.cpp	Sat Jan 03 15:26:23 2015 +0000
@@ -0,0 +1,147 @@
+#include "mbed.h"
+#include "timer0.h"
+
+
+//--------------------------------------------------------
+// Construktor initialisiert den Timer
+timer0::timer0()
+{
+    uint8_t i;
+    
+    ms = 0;
+    sec = 0;
+    
+    // Initialize countdown timers
+    for (i=0; i < TIMER0_NUM_COUNTDOWNTIMERS; i++)
+      CountDownTimers[i].status = 0xFF;
+  
+    ticker.attach_us(this, &timer0::func, 1000);
+}
+
+//--------------------------------------------------------
+// Interruptroutine wird jede ms aufgerufen
+void timer0::func(void)
+{
+    uint8_t i;
+    
+    if(counter != 0) counter--;
+
+    // Zeitbasis für Systemzeit
+    // ----- count down timers in ms -------------------------------------------------
+    for (i=0; i<TIMER0_NUM_COUNTDOWNTIMERS; i++) 
+    {
+        if (CountDownTimers[i].status == 1) 
+        {       // ms
+            if (CountDownTimers[i].count_timer > 0)
+                CountDownTimers[i].count_timer -- ;
+            if (CountDownTimers[i].count_timer == 0)
+                CountDownTimers[i].status = 0;
+        }
+    }
+    
+    if (ms < 1000) 
+    {
+        ms++;  
+    }
+    else
+    {
+        ms = 0;
+       
+        seconds++;
+        set_time(seconds);
+       
+        // ----- count down timers in s -------------------------------------------------
+        for (i=0; i<TIMER0_NUM_COUNTDOWNTIMERS; i++) 
+        {
+            if (CountDownTimers[i].status == 2) 
+            {   // sekunden
+                if (CountDownTimers[i].count_timer > 0)
+                    CountDownTimers[i].count_timer -- ;
+                if (CountDownTimers[i].count_timer == 0)
+                    CountDownTimers[i].status = 0;
+            }
+        }
+        
+        if (sec < 60) 
+        {
+            sec++;
+        }
+        else
+        {
+            sec = 0; 
+            
+            // hier folgt der Minutenzähler falls erforderlich           
+        }   
+    }
+    
+}
+
+//--------------------------------------------------------
+// Abfrage nach freiem Timer
+//
+// wenn alle Timer belegt sind wird 0xFF zurückgegebne
+
+uint8_t timer0::AllocateCountdownTimer (void)
+{
+    uint8_t i;
+    
+    for (i=0; i<TIMER0_NUM_COUNTDOWNTIMERS; i++)
+        if (CountDownTimers[i].status == 0xFF)
+        {
+            CountDownTimers[i].status = 0x00;   // Timer reserviert, nicht gestartet
+            // printf_P(PSTR("\rallocate timer [%03d] %d\n"),i,ListPointer);            
+            
+            return i;
+        }
+
+    return 0xFF;
+}
+
+//--------------------------------------------------------
+// Timer wieder freigeben
+void timer0::RemoveCountdownTimer(uint8_t timer)
+{
+    CountDownTimers[timer].status = 0xFF;
+}
+
+//--------------------------------------------------------
+// Abfrage ob Timer 0 erreicht hat                  
+uint8_t timer0::GetTimerStatus(uint8_t timer)
+{
+    return CountDownTimers[timer].status;
+}
+
+//--------------------------------------------------------
+// Abfrage der verbleibenden Zeit               
+uint16_t timer0::GetTimerZeit(uint8_t timer)
+{
+    return CountDownTimers[timer].count_timer;
+}
+
+//--------------------------------------------------------
+// Timer aktivieren
+void timer0::SetCountdownTimer(unsigned char timer, unsigned char status, unsigned short value)
+{
+    CountDownTimers[timer].count_timer = value;
+    CountDownTimers[timer].status = status;
+}
+
+//--------------------------------------------------------
+// Zeitstempel setzen
+void timer0::Set_t(uint8_t * data)
+{
+    char buffer[40];    
+    
+    t.tm_sec  = data[0];     // Sekunden 0-59
+    t.tm_min  = data[1];     // Minuten 0-59
+    t.tm_hour = data[2];     // Stunden 0-23
+    t.tm_mday = data[3];     // Tag 1-31
+    t.tm_mon  = data[4] - 1; // Monat 0-11 0 = Januar
+    t.tm_year = data[5];     // Jahr year since 1900   
+    
+    seconds = mktime(&t);
+    set_time(seconds);
+    
+    strftime(buffer, 40, "%a,%d.%m.%Y %H:%M:%S", localtime(&seconds));
+    // pc.printf("\ntimer0::set_t = %s", buffer);   
+}