Notaus / timer0

Update vom 10.05.15

Dependents:   19_Taster_BSW_oo 19_Taster_a

Fork of timer0 by Reinhold Schaefer

timer0.cpp@0:bbd867fd30d1, 2014-07-26 (annotated)

Committer:
rs27
Date:
Sat Jul 26 07:27:37 2014 +0000
Revision:
0:bbd867fd30d1
Child:
1:45063f72267b
timer

Who changed what in which revision?

UserRevisionLine numberNew contents of line
rs27 0:bbd867fd30d1 1
rs27 0:bbd867fd30d1 2 #include "timer0.h"
rs27 0:bbd867fd30d1 3
rs27 0:bbd867fd30d1 4 //--------------------------------------------------------
rs27 0:bbd867fd30d1 5 // Construktor initialisiert den Timer
rs27 0:bbd867fd30d1 6 timer0::timer0()
rs27 0:bbd867fd30d1 7 {
rs27 0:bbd867fd30d1 8 uint8_t i;
rs27 0:bbd867fd30d1 9
rs27 0:bbd867fd30d1 10 // Initialize countdown timers
rs27 0:bbd867fd30d1 11 for (i=0; i < TIMER0_NUM_COUNTDOWNTIMERS; i++)
rs27 0:bbd867fd30d1 12 CountDownTimers[i].status = 0xFF;
rs27 0:bbd867fd30d1 13
rs27 0:bbd867fd30d1 14 ticker.attach_us(this, &timer0::func, 1000);
rs27 0:bbd867fd30d1 15 }
rs27 0:bbd867fd30d1 16
rs27 0:bbd867fd30d1 17 //--------------------------------------------------------
rs27 0:bbd867fd30d1 18 // Interruptroutine wird jede ms aufgerufen
rs27 0:bbd867fd30d1 19 void timer0::func(void)
rs27 0:bbd867fd30d1 20 {
rs27 0:bbd867fd30d1 21 uint8_t i;
rs27 0:bbd867fd30d1 22
rs27 0:bbd867fd30d1 23 if(counter != 0) counter--;
rs27 0:bbd867fd30d1 24
rs27 0:bbd867fd30d1 25 // ----- count down timers in ms -------------------------------------------------
rs27 0:bbd867fd30d1 26 for (i=0; i<TIMER0_NUM_COUNTDOWNTIMERS; i++)
rs27 0:bbd867fd30d1 27 {
rs27 0:bbd867fd30d1 28 if (CountDownTimers[i].status == 1)
rs27 0:bbd867fd30d1 29 { // 10 ms
rs27 0:bbd867fd30d1 30 if (CountDownTimers[i].count_timer > 0)
rs27 0:bbd867fd30d1 31 CountDownTimers[i].count_timer -- ;
rs27 0:bbd867fd30d1 32 if (CountDownTimers[i].count_timer == 0)
rs27 0:bbd867fd30d1 33 CountDownTimers[i].status = 0;
rs27 0:bbd867fd30d1 34 }
rs27 0:bbd867fd30d1 35 }
rs27 0:bbd867fd30d1 36
rs27 0:bbd867fd30d1 37 }
rs27 0:bbd867fd30d1 38
rs27 0:bbd867fd30d1 39 //--------------------------------------------------------
rs27 0:bbd867fd30d1 40 // Abfrage nach freiem Timer
rs27 0:bbd867fd30d1 41 //
rs27 0:bbd867fd30d1 42 // wenn alle Timer belegt sind wird 0xFF zurückgegebne
rs27 0:bbd867fd30d1 43
rs27 0:bbd867fd30d1 44 uint8_t timer0::AllocateCountdownTimer (void)
rs27 0:bbd867fd30d1 45 {
rs27 0:bbd867fd30d1 46 uint8_t i;
rs27 0:bbd867fd30d1 47
rs27 0:bbd867fd30d1 48 for (i=0; i<TIMER0_NUM_COUNTDOWNTIMERS; i++)
rs27 0:bbd867fd30d1 49 if (CountDownTimers[i].status == 0xFF)
rs27 0:bbd867fd30d1 50 {
rs27 0:bbd867fd30d1 51 CountDownTimers[i].status = 0x00; // Timer reserviert, nicht gestartet
rs27 0:bbd867fd30d1 52 // printf_P(PSTR("\rallocate timer [%03d] %d\n"),i,ListPointer);
rs27 0:bbd867fd30d1 53
rs27 0:bbd867fd30d1 54 return i;
rs27 0:bbd867fd30d1 55 }
rs27 0:bbd867fd30d1 56
rs27 0:bbd867fd30d1 57 return 0xFF;
rs27 0:bbd867fd30d1 58 }
rs27 0:bbd867fd30d1 59
rs27 0:bbd867fd30d1 60 //--------------------------------------------------------
rs27 0:bbd867fd30d1 61 // Timer wieder freigeben
rs27 0:bbd867fd30d1 62 void timer0::RemoveCountdownTimer(uint8_t timer)
rs27 0:bbd867fd30d1 63 {
rs27 0:bbd867fd30d1 64 CountDownTimers[timer].status = 0xFF;
rs27 0:bbd867fd30d1 65 }
rs27 0:bbd867fd30d1 66
rs27 0:bbd867fd30d1 67 //--------------------------------------------------------
rs27 0:bbd867fd30d1 68 // Abfrage ob Timer 0 erreicht hat
rs27 0:bbd867fd30d1 69 uint8_t timer0::GetTimerStatus(uint8_t timer)
rs27 0:bbd867fd30d1 70 {
rs27 0:bbd867fd30d1 71 return CountDownTimers[timer].status;
rs27 0:bbd867fd30d1 72 }
rs27 0:bbd867fd30d1 73
rs27 0:bbd867fd30d1 74 //--------------------------------------------------------
rs27 0:bbd867fd30d1 75 // Abfrage der verbleibenden Zeit
rs27 0:bbd867fd30d1 76 uint16_t timer0::GetTimerZeit(uint8_t timer)
rs27 0:bbd867fd30d1 77 {
rs27 0:bbd867fd30d1 78 return CountDownTimers[timer].count_timer;
rs27 0:bbd867fd30d1 79 }
rs27 0:bbd867fd30d1 80
rs27 0:bbd867fd30d1 81 //--------------------------------------------------------
rs27 0:bbd867fd30d1 82 // Timer aktivieren
rs27 0:bbd867fd30d1 83 void timer0::SetCountdownTimer(uint8_t timer, uint8_t status, uint16_t value)
rs27 0:bbd867fd30d1 84 {
rs27 0:bbd867fd30d1 85 CountDownTimers[timer].count_timer = value;
rs27 0:bbd867fd30d1 86 CountDownTimers[timer].status = status;
rs27 0:bbd867fd30d1 87 }