Configuration data for PWM audio output. More...

Inheritance diagram for PWMConfig:

Public Member Functions
virtual void	clear ()

void	copyFrom (AudioInfo info)
	Same as set.

bool	equals (AudioInfo alt)
	Returns true if alt values are the same like the current values.

bool	equalsExSampleRate (AudioInfo alt)
	Checks if only the sample rate is different.

void	logConfig ()

virtual void	logInfo (const char *source="")

	operator bool ()
	Returns true if all components are defined (no component is 0)

bool	operator!= (AudioInfo alt)
	Returns true if alt values are the different from the current values.

bool	operator== (AudioInfo alt)
	Returns true if alt values are the same like the current values.

void	set (AudioInfo info)
	Copies the values from info.

void	setAudioInfo (AudioInfo info)
	Same as set.

Public Attributes
uint8_t	bits_per_sample = DEFAULT_BITS_PER_SAMPLE
	Number of bits per sample (int16_t = 16 bits)

uint16_t	buffer_size = PWM_BUFFER_SIZE
	size of an inidividual buffer

uint8_t	buffers = PWM_BUFFER_COUNT
	number of buffers

uint16_t	channels = DEFAULT_CHANNELS
	Number of channels: 2=stereo, 1=mono.

uint16_t	dead_time_us = 0
	Dead time in microseconds for symmetric PWM (ESP32 only)

uint32_t	max_sample_rate = PWM_MAX_SAMPLE_RATE
	max sample sample rate that still produces good audio

uint32_t	pwm_frequency = 0
	additinal info which might not be used by all processors

uint8_t	resolution = 8
	Only used by ESP32: must be between 8 and 11 -> drives pwm frequency // 20,000Hz (not used by ESP32)

sample_rate_t	sample_rate = DEFAULT_SAMPLE_RATE
	Sample Rate: e.g 44100.

uint8_t	timer_id = 0
	Timer used: Only used by ESP32 must be between 0 and 3

Detailed Description

Configuration data for PWM audio output.

The documentation for this struct was generated from the following file:

Public Member Functions