//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 #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