one-framework/buzzer_8h_source.html

#ifndef PWM_BUZZER_H

#define PWM_BUZZER_H


#include <zephyr/device.h>


#ifdef __cplusplus

extern "C" {

#endif


int pwm_buzzer_play_tone(const struct device *dev, uint32_t frequency_hz, uint8_t volume);


int pwm_buzzer_stop(const struct device *dev);


int pwm_buzzer_set_volume(const struct device *dev, uint8_t volume);


int pwm_buzzer_get_volume(const struct device *dev, uint8_t *volume);


int pwm_buzzer_play_note(const struct device *dev, float note_multiplier, uint8_t volume);


#ifdef __cplusplus

}

#endif


#endif // PWM_BUZZER_H

pwm_buzzer_play_note
int pwm_buzzer_play_note(const struct device *dev, float note_multiplier, uint8_t volume)
播放音符（基于基础频率的倍数）
定义 pwm_buzzer.c:104

pwm_buzzer_set_volume
int pwm_buzzer_set_volume(const struct device *dev, uint8_t volume)
设置蜂鸣器音量
定义 pwm_buzzer.c:70

pwm_buzzer_play_tone
int pwm_buzzer_play_tone(const struct device *dev, uint32_t frequency_hz, uint8_t volume)
播放指定频率的声音
定义 pwm_buzzer.c:28

pwm_buzzer_stop
int pwm_buzzer_stop(const struct device *dev)
停止播放声音
定义 pwm_buzzer.c:65

pwm_buzzer_get_volume
int pwm_buzzer_get_volume(const struct device *dev, uint8_t *volume)
获取当前音量
定义 pwm_buzzer.c:91