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- #ifndef TIMER_H
- #define TIMER_H 1
- #include <stdint.h>
- #if defined(__AVR__)
- #include "avr/timer_avr.h"
- #endif
- #define TIMER_DIFF(a, b, max) ((a) >= (b) ? (a) - (b) : (max) - (b) + (a))
- #define TIMER_DIFF_8(a, b) TIMER_DIFF(a, b, UINT8_MAX)
- #define TIMER_DIFF_16(a, b) TIMER_DIFF(a, b, UINT16_MAX)
- #define TIMER_DIFF_32(a, b) TIMER_DIFF(a, b, UINT32_MAX)
- #define TIMER_DIFF_RAW(a, b) TIMER_DIFF_8(a, b)
- #ifdef __cplusplus
- extern "C" {
- #endif
- extern volatile uint32_t timer_count;
- void timer_init(void);
- void timer_clear(void);
- uint16_t timer_read(void);
- uint32_t timer_read32(void);
- uint16_t timer_elapsed(uint16_t last);
- uint32_t timer_elapsed32(uint32_t last);
- #ifdef __cplusplus
- }
- #endif
- #endif
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