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- #ifndef TIMER_H
- #define TIMER_H 1
-
- #include <stdint.h>
-
- #define TIMER_DIFF(a, b) ((a) >= (b) ? (a) - (b) : UINT16_MAX - (b) + (a))
-
-
- extern volatile uint16_t timer_count;
-
-
- void timer_init(void);
- void timer_clear(void);
- uint16_t timer_read(void);
- uint16_t timer_elapsed(uint16_t last);
-
- #endif
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