buzzer_arch.h File Reference

Piezo buzzer tone output with a ChibiOS PWM driver. More...

#include "std.h"

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Functions
void	buzzer_arch_init (void)
void	buzzer_arch_tone (uint16_t freq)
	Play a square wave at freq Hz, 0 for silence.

Detailed Description

Piezo buzzer tone output with a ChibiOS PWM driver.

The board defines BUZZER_GPIO, BUZZER_PIN, BUZZER_AF, BUZZER_PWMD and BUZZER_PWM_CHANNEL.

Definition in file buzzer_arch.h.

Function Documentation

buzzer_arch_init()

void buzzer_arch_init ( void )

extern

Definition at line 49 of file buzzer_arch.c.

References BUZZER_AF, BUZZER_GPIO, BUZZER_PIN, BUZZER_PWM_CHANNEL, buzzer_pwm_conf, BUZZER_PWMD, and gpio_setup_pin_af().

Referenced by buzzer_tunes_init().

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buzzer_arch_tone()

void buzzer_arch_tone ( uint16_t freq )

extern

Play a square wave at freq Hz, 0 for silence.

Definition at line 57 of file buzzer_arch.c.

References BUZZER_PWM_CHANNEL, BUZZER_PWM_FREQUENCY, and BUZZER_PWMD.

Referenced by buzzer_tunes_periodic(), start_next_note(), and tune_start().

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