Notaus / timer0-050216

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Dependents:   mini_02

Fork of timer0 by V09

timer0.cpp@2:f63678f5ed05, 2016-03-10 (annotated)

Committer:
rs27
Date:
Thu Mar 10 20:34:59 2016 +0000
Revision:
2:f63678f5ed05
Parent:
1:3ab9e5cd87e7 

        

        
Who changed what in which revision?

        

            
                
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#include "mbed.h"





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#include "timer0.h"





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//--------------------------------------------------------





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// Construktor initialisiert den Timer





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timer0::timer0()





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{





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    uint8_t i;





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    ms = 0;





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    sec = 0;





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    min = 0;





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    hours = 0;





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    // Initialize countdown timers





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    for (i=0; i < TIMER0_NUM_COUNTDOWNTIMERS; i++)





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      CountDownTimers[i].status = 0xFF;





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    ticker.attach_us(this, &timer0::func, 1000);





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}





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//--------------------------------------------------------





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// Interruptroutine wird jede 1000µs aufgerufen, da das Senden von





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// einem Zeichen ca. 100µs Zeit beansprucht





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void timer0::func(void)





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{





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    uint8_t i;





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    // Zeitbasis für Systemzeit





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    // ----- count down timers in ms -------------------------------------------------





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    for (i=0; i<TIMER0_NUM_COUNTDOWNTIMERS; i++) 





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    {





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        if (CountDownTimers[i].status == 1) 





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        {       // ms





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            if (CountDownTimers[i].count_timer > 0)





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                CountDownTimers[i].count_timer -- ;





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            if (CountDownTimers[i].count_timer == 0)





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                CountDownTimers[i].status = 0;





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        }





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    }





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    if (ms < 1000) 





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    {





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        ms++;  





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    }





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    else





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    {





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        ms = 0;





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        seconds++;





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        set_time(seconds);





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        // ----- count down timers in seconds -------------------------------------------------





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        for (i=0; i<TIMER0_NUM_COUNTDOWNTIMERS; i++) 





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        {





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            if (CountDownTimers[i].status == 2) 





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            {   // sekunden





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                if (CountDownTimers[i].count_timer > 0)





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                    CountDownTimers[i].count_timer -- ;





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                if (CountDownTimers[i].count_timer == 0)





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                    CountDownTimers[i].status = 0;





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            }





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        }





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        if (sec < 60) 





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        {





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            sec++;





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        }





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        else





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        {





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            sec = 0; 





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            // ----- count down timers in minuts -------------------------------------------------





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            for (i=0; i<TIMER0_NUM_COUNTDOWNTIMERS; i++) 





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            {





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                if (CountDownTimers[i].status == 3) 





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                {   // sekunden





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                    if (CountDownTimers[i].count_timer > 0)





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                        CountDownTimers[i].count_timer -- ;





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                    if (CountDownTimers[i].count_timer == 0)





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                        CountDownTimers[i].status = 0;





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                }





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            }           





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            if (min < 60) min++;





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            else





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            {





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              min = 0;





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              if (hours < 24) hours++; 





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                else hours = 0;





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            }                     





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        }   





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    }





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}





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//--------------------------------------------------------





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// Abfrage der Softwareuhr





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//





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// die Stunden, Minuten und Sekungen werden in einem Array zurückgegeben





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// die millisekunden sind separat





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void timer0::get_time_stamp(uint8_t *tarray,uint16_t *millis)





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{





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    *millis = ms;





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    *tarray = hours;





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    tarray++;





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    *tarray = min;





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    tarray++;





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    *tarray = sec;





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}





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//--------------------------------------------------------





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// Abfrage nach freiem Timer





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//





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// wenn alle Timer belegt sind wird 0xFF zurückgegebne





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uint8_t timer0::AllocateCountdownTimer (void)





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{





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    uint8_t i;





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    for (i=0; i<TIMER0_NUM_COUNTDOWNTIMERS; i++)





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        if (CountDownTimers[i].status == 0xFF)





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        {





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            CountDownTimers[i].status = 0x00;   // Timer reserviert, nicht gestartet





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            // printf_P(PSTR("\rallocate timer [%03d] %d\n"),i,ListPointer);            





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            return i;





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        }





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    return 0xFF;





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}





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//--------------------------------------------------------





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// Timer wieder freigeben





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void timer0::RemoveCountdownTimer(uint8_t timer)





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{





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    CountDownTimers[timer].status = 0xFF;





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}





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//--------------------------------------------------------





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// Abfrage ob Timer 0 erreicht hat                  





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uint8_t timer0::GetTimerStatus(uint8_t timer)





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{





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    return CountDownTimers[timer].status;





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}





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//--------------------------------------------------------





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// Abfrage der verbleibenden Zeit               





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uint16_t timer0::GetTimerZeit(uint8_t timer)





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{





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    return CountDownTimers[timer].count_timer;





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}





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//--------------------------------------------------------





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// Timer aktivieren





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void timer0::SetCountdownTimer(unsigned char timer, unsigned char status, unsigned short value)





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{





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    CountDownTimers[timer].count_timer = value;





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    CountDownTimers[timer].status = status;





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}





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//--------------------------------------------------------





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// Zeitstempel setzen





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void timer0::Set_t(uint8_t * data)





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{





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    char buffer[40];    





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    t.tm_sec  = data[0];     // Sekunden 0-59





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    t.tm_min  = data[1];     // Minuten 0-59





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    t.tm_hour = data[2];     // Stunden 0-23





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    t.tm_mday = data[3];     // Tag 1-31





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    t.tm_mon  = data[4] - 1; // Monat 0-11 0 = Januar





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    t.tm_year = data[5];     // Jahr year since 1900   





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    seconds = mktime(&t);





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    set_time(seconds);





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    strftime(buffer, 40, "%a,%d.%m.%Y %H:%M:%S", localtime(&seconds));





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    // pc.printf("\ntimer0::set_t = %s", buffer);   





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}