timer0
Dependents: 09_PT1000 10_PT1000 11_PT1000 18_PT1000
timer0.cpp
- Committer:
- rs27
- Date:
- 2014-07-26
- Revision:
- 0:bbd867fd30d1
- Child:
- 1:45063f72267b
File content as of revision 0:bbd867fd30d1:
#include "timer0.h" //-------------------------------------------------------- // Construktor initialisiert den Timer timer0::timer0() { uint8_t i; // 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--; // ----- count down timers in ms ------------------------------------------------- for (i=0; i<TIMER0_NUM_COUNTDOWNTIMERS; i++) { if (CountDownTimers[i].status == 1) { // 10 ms if (CountDownTimers[i].count_timer > 0) CountDownTimers[i].count_timer -- ; if (CountDownTimers[i].count_timer == 0) CountDownTimers[i].status = 0; } } } //-------------------------------------------------------- // 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(uint8_t timer, uint8_t status, uint16_t value) { CountDownTimers[timer].count_timer = value; CountDownTimers[timer].status = status; }