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  1. #ifndef timebase_h_
  2. #define timebase_h_
  3.  
  4.  
  5. /*-----------------------------------------------------------------------------
  6.  * Includes
  7.  *---------------------------------------------------------------------------*/
  8. #include <inttypes.h>
  9.  
  10.  
  11. /*-----------------------------------------------------------------------------
  12.  * Defines
  13.  *---------------------------------------------------------------------------*/
  14. /* Enable timer2 if you want to use as many PWM outputs as possible */
  15. #define TIMER2
  16.  
  17. // Uncomment the following line to test the improved timebase implementation
  18. //#define TIMEBASE_NEW_IMPLEMENTATION
  19.  
  20. #define TIMEBASE_PRESCALE (64)
  21. #define TIMEBASE_HITS_PER_1MS (F_CPU/TIMEBASE_PRESCALE/1000)
  22.  
  23. #if TIMEBASE_HITS_PER_1MS > 255
  24. #undef TIMEBASE_PRESCALE
  25. #define TIMEBASE_PRESCALE (256)
  26. #undef TIMEBASE_HITS_PER_1MS
  27. #define TIMEBASE_HITS_PER_1MS (F_CPU/TIMEBASE_PRESCALE/1000)    // behöver denna definieras om ifall prescalern definierats om?
  28. #endif
  29.  
  30. #define TIMEBASE_RELOAD ((uint8_t)(0xff-TIMEBASE_HITS_PER_1MS+1))
  31.  
  32.  
  33. /*-----------------------------------------------------------------------------
  34.  * Public Function Prototypes
  35.  *---------------------------------------------------------------------------*/
  36. void Timebase_Init(void);
  37. uint32_t Timebase_CurrentTime(void);
  38. uint32_t Timebase_PassedTimeMillis(uint32_t t0);
  39.  
  40.  
  41. #endif
  42.