| 12345678910111213141516171819202122232425 | //tone04.h// use atmega timer4 as main tone timer instead of timer2// timer2 is used for System timer.#ifndef TIMER04_H#define TIMER04_H#include <inttypes.h>#if defined(__cplusplus)extern "C" {#endif //defined(__cplusplus)extern void timer4_init(void);extern void timer4_set_fan0(uint8_t duty);extern void tone4(uint8_t _pin, uint16_t frequency);extern void noTone4(uint8_t _pin);#if defined(__cplusplus)}#endif //defined(__cplusplus)#endif //TIMER02_H
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