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buzzer.h
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#ifndef _BUZZER_H_
#define _BUZZER_H_
#include "ch.h"
typedef enum
{
NOTE_C0 = 0,
NOTE_CS0,
NOTE_D0,
NOTE_DS0,
NOTE_E0,
NOTE_F0,
NOTE_FS0,
NOTE_G0,
NOTE_GS0,
NOTE_A0,
NOTE_AS0,
NOTE_B0,
NOTE_C1,
NOTE_CS1,
NOTE_D1,
NOTE_DS1,
NOTE_E1,
NOTE_F1,
NOTE_FS1,
NOTE_G1,
NOTE_GS1,
NOTE_A1,
NOTE_AS1,
NOTE_B1,
NOTE_C2,
NOTE_CS2,
NOTE_D2,
NOTE_DS2,
NOTE_E2,
NOTE_F2,
NOTE_FS2,
NOTE_G2,
NOTE_GS2,
NOTE_A2,
NOTE_AS2,
NOTE_B2,
NOTE_C3,
NOTE_CS3,
NOTE_D3,
NOTE_DS3,
NOTE_E3,
NOTE_F3,
NOTE_FS3,
NOTE_G3,
NOTE_GS3,
NOTE_A3,
NOTE_AS3,
NOTE_B3,
NOTE_C4,
NOTE_CS4,
NOTE_D4,
NOTE_DS4,
NOTE_E4,
NOTE_F4,
NOTE_FS4,
NOTE_G4,
NOTE_GS4,
NOTE_A4,
NOTE_AS4,
NOTE_B4,
NOTE_C5,
NOTE_CS5,
NOTE_D5,
NOTE_DS5,
NOTE_E5,
NOTE_F5,
NOTE_FS5,
NOTE_G5,
NOTE_GS5,
NOTE_A5,
NOTE_AS5,
NOTE_B5,
NOTE_C6,
NOTE_CS6,
NOTE_D6,
NOTE_DS6,
NOTE_E6,
NOTE_F6,
NOTE_FS6,
NOTE_G6,
NOTE_GS6,
NOTE_A6,
NOTE_AS6,
NOTE_B6,
NOTE_C7,
NOTE_CS7,
NOTE_D7,
NOTE_DS7,
NOTE_E7,
NOTE_F7,
NOTE_FS7,
NOTE_G7,
NOTE_GS7,
NOTE_A7,
NOTE_AS7,
NOTE_B7,
NOTE_C8,
NOTE_CS8,
NOTE_D8,
NOTE_DS8,
NOTE_E8,
NOTE_F8,
NOTE_FS8,
NOTE_G8,
NOTE_GS8,
NOTE_A8,
NOTE_AS8,
NOTE_B8,
NOTE_C9,
NOTE_CS9,
NOTE_D9,
NOTE_DS9,
NOTE_E9,
NOTE_F9,
NOTE_FS9,
NOTE_G9,
NOTE_GS9,
NOTE_A9,
NOTE_AS9,
NOTE_B9,
} note_t;
void buzzer_init(void);
void buzzer_play_note(note_t note, uint16_t duration);
void buzzer_play_rest(uint16_t duration);
void buzzer_set_frequency(float freq);
#endif /* _BUZZER_H_ */