buzzer.c File Reference

Implementation of the PWM buzzer driver. More...

#include "buzzer.h"
#include "main.h"

Include dependency graph for buzzer.c:

Go to the source code of this file.

Macros
#define	TIMER_CLOCK_FREQ   240000000UL
	The input clock frequency to the timer peripheral.
#define	TIMER_PRESCALER   2400
	A fixed prescaler to bring the timer frequency into a usable range.

Functions
void	buzzer_init (buzzer_t *bz, TIM_HandleTypeDef *htim, uint32_t channel)
	Initializes the buzzer object and its associated timer hardware.
void	musica_maestro (buzzer_t *bz, const note_t *partition, uint16_t melody_length)
	Plays a melody by iterating through an array of notes.

Variables
buzzer_t	buzzer
	Global instance of the buzzer object.

Detailed Description

Implementation of the PWM buzzer driver.

Author

Francesco Abate

See also

buzzer.h for API documentation and usage examples.

Definition in file buzzer.c.

Macro Definition Documentation

TIMER_CLOCK_FREQ

#define TIMER_CLOCK_FREQ   240000000UL

The input clock frequency to the timer peripheral.

Definition at line 13 of file buzzer.c.

TIMER_PRESCALER

#define TIMER_PRESCALER   2400

A fixed prescaler to bring the timer frequency into a usable range.

Definition at line 14 of file buzzer.c.