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  1. /*********************************************************************
  2.  *
  3.  *                  Ticker header file
  4.  *
  5.  *********************************************************************
  6.  * FileName:        Tick.h
  7.  *
  8.  * Author               Date    Comment
  9.  *~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  10.  * Johan Böhlin     21-10-06    Original        (Rev 1.0)
  11.  ********************************************************************/
  12.  
  13. #ifndef TICK_H
  14. #define TICK_H
  15.  
  16. #include <stackTasks.h>
  17.  
  18. typedef unsigned long TICK;
  19.  
  20. #if !defined(TICKS_PER_SECOND)
  21.     #error TICKS_PER_SECOND must be defined.
  22. #endif
  23.  
  24. #if !defined(TICK_PRESCALE_VALUE)
  25.     #error TICK_PRESCALE_VALUE must be defined.
  26. #endif
  27.  
  28. #define TICK_PERIOD_MS          10
  29. #define TICK_SECOND             ((TICK)TICKS_PER_SECOND)
  30.  
  31.  
  32. /*
  33.  * Only Tick.c defines TICK_INCLUDE and thus defines Seconds
  34.  * and TickValue storage.
  35.  */
  36. #ifndef TICK_INCLUDE
  37. extern TICK TickCount;
  38. #endif
  39.  
  40. void tickInit(void);
  41. TICK tickGet(void);
  42. void tickUpdate(void);
  43.  
  44. #endif
  45.