AnalogDriverESP32 Class Reference

Please use AnalogAudioStream: A very fast ADC and DAC using the ESP32 I2S interface. More...

#include <AnalogDriverESP32.h>

Inheritance diagram for AnalogDriverESP32:

Public Member Functions
	AnalogDriverESP32 ()=default
	Default constructor.
virtual	~AnalogDriverESP32 ()
	Destructor.
virtual int	available () override
virtual int	availableForWrite ()
bool	begin (AnalogConfigESP32 cfg)
	starts the DAC
void	end () override
	stops the I2S and unistalls the driver
size_t	readBytes (uint8_t *dest, size_t size_bytes) override
size_t	write (const uint8_t *src, size_t size_bytes) override
	writes the data to the I2S interface

Protected Member Functions
size_t	outputMono (const void *src, size_t size_bytes)
size_t	outputStereo (const void *src, size_t size_bytes)
void	setupInputPin (int gpio)
	Defines the current ADC pin. The following GPIO pins are supported: GPIO32-GPIO39.

Protected Attributes
bool	active = false
adc1_channel_t	adc_channel
AnalogConfigESP32	adc_config
adc_unit_t	adc_unit
ConverterAutoCenter	auto_center
bool	is_driver_installed = false
i2s_port_t	port_no
size_t	result =0

Detailed Description

Please use AnalogAudioStream: A very fast ADC and DAC using the ESP32 I2S interface.

Author

Phil Schatzmann

Copyright

GPLv3

Constructor & Destructor Documentation

AnalogDriverESP32()

AnalogDriverESP32 ( )

default

Default constructor.

~AnalogDriverESP32()

virtual ~AnalogDriverESP32 ( )

inlinevirtual

Destructor.

Member Function Documentation

available()

virtual int available ( )

inlineoverridevirtual

Implements AnalogDriverBase.

availableForWrite()

virtual int availableForWrite ( )

inlinevirtualinherited

Reimplemented in AnalogDriverMBED, AnalogDriverArduino, and AnalogDriverZephyr.

begin()

bool begin ( AnalogConfigESP32  cfg )

inlinevirtual

starts the DAC

Implements AnalogDriverBase.

end()

void end ( )

inlineoverridevirtual

stops the I2S and unistalls the driver

Implements AnalogDriverBase.

outputMono()

size_t outputMono ( const void *  src, size_t  size_bytes  )

inlineprotected

outputStereo()

size_t outputStereo ( const void *  src, size_t  size_bytes  )

inlineprotected

readBytes()

size_t readBytes ( uint8_t *  dest, size_t  size_bytes  )

inlineoverridevirtual

Implements AnalogDriverBase.

setupInputPin()

void setupInputPin ( int  gpio )

inlineprotected

Defines the current ADC pin. The following GPIO pins are supported: GPIO32-GPIO39.

write()

size_t write ( const uint8_t *  src, size_t  size_bytes  )

inlineoverridevirtual

writes the data to the I2S interface

Reimplemented from AnalogDriverBase.

Member Data Documentation

active

bool active = false

protected

adc_channel

adc1_channel_t adc_channel

protected

adc_config

AnalogConfigESP32 adc_config

protected

adc_unit

adc_unit_t adc_unit

protected

auto_center

ConverterAutoCenter auto_center

protected

is_driver_installed

bool is_driver_installed = false

protected

port_no

i2s_port_t port_no

protected

result

size_t result =0

protected

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

• src/AudioTools/CoreAudio/AudioAnalog/AnalogDriverESP32.h