Fix ESP32 port

[tomcombriat]

Note:

I have done everything using the ESP-IDF documentation (https://docs.espressif.com/projects/esp-idf/en/v5.4/esp32/index.html) but not the Arduino-esp32 one (https://docs.espressif.com/projects/arduino-esp32/en/latest/api/i2s.html).

Work in progress Done (?)

The goal is to change the port for the ESP32 to the new version of the API (v.5). Below the state of the work.

Note: only tested on ESP32-WROOM-32D (which have a native DAC) and ESP32-S3 (which does not).

---

EXTERNAL_TIMED

Fixed

Can be tested with, as a config:

#include<MozziConfigValues.h>
#define MOZZI_AUDIO_MODE MOZZI_OUTPUT_EXTERNAL_TIMED 
#define MOZZI_AUDIO_BITS 8 

and as an audioOutput():

void audioOutput(const AudioOutput f) // f is a structure containing both channels
{
  dacWrite(25,f.l()+MOZZI_AUDIO_BIAS);
}

INTERNAL_DAC

Compiles and run (does not panic) but no sound Fixed (see below)

Still resists me… I tried to switch to a DMA written DAC as per the docs but still got some error message from the ESP… If anyone has an idea… Worst case, something like the dacWrite used in the example above could do the job, but that's not really satisfying…

Note: espressif/arduino-esp32#10851

Mozzi runs, updateControl is called, i2s writing function is called…

Edit: I think I'll do the workaround described for the timed_output using dacWrite in the near future, and will change when espressif gives some feedback (or I find the problem myself…)
I did the workaround above. Works well but probably not the most efficient. Will probably evolves but that works.

Default mode for ESP32

NATIVE_I2S

Fixed

Default config to plain format (different than before) to be coherent with the others I2S ports (especially RP2040). Mode can be further changed to LSBJ (PT8211) and lines phases can also be edited.
Works in MONO and STEREO for the PT8211 (do not have the DAC to test plain, or at least not in super close reach).

PWM

New addition, mainly to support the ESP32 chips that do not have a DAC on-board. A bit fancier than a analogWrite but not much. Default mode automatic selection is not yet implemented (and this is not tested on other boards yet…). This will fix #278 .
Default pins are 15 and 16.

Default mode for all other boards (ESP32-XX)

[amiel]

Thank you so much for working on this!!!!!! I am using MOZZI_OUTPUT_I2S_DAC with a PT8211 in a side project and will test this out when I get a chance, although it won't be a for a few weeks.

[github-actions]

Memory usage change @ 1070453

Board	flash	%	RAM for global variables	%
STMicroelectronics:stm32:GenF1:pnum=BLUEPILL_F103C8	0 - 0	0.0 - 0.0	0 - 0	0.0 - 0.0
arduino:avr:mega	0 - 0	0.0 - 0.0	0 - 0	0.0 - 0.0
arduino:avr:uno	0 - 0	0.0 - 0.0	0 - 0	0.0 - 0.0
arduino:mbed_giga:giga	0 - 0	0.0 - 0.0	0 - 0	0.0 - 0.0
arduino:renesas_uno:minima	0 - 0	0.0 - 0.0	0 - 0	0.0 - 0.0
arduino:samd:adafruit_circuitplayground_m0	0 - 0	0.0 - 0.0	0 - 0	0.0 - 0.0
esp8266:esp8266:huzzah	N/A	N/A	N/A	N/A
rp2040:rp2040:rpipico	0 - 0	0.0 - 0.0	0 - 0	0.0 - 0.0
teensy:avr:teensy36	0 - 0	0.0 - 0.0	0 - 0	0.0 - 0.0
teensy:avr:teensy41	N/A	N/A	N/A	N/A

Click for full report table

Board	examples/01.Basics/Control_Gain flash	%	examples/01.Basics/Control_Gain RAM for global variables	%	examples/01.Basics/Sinewave flash	%	examples/01.Basics/Sinewave RAM for global variables	%	examples/01.Basics/Sinewave_HIFI flash	%	examples/01.Basics/Sinewave_HIFI RAM for global variables	%	examples/01.Basics/Skeleton flash	%	examples/01.Basics/Skeleton RAM for global variables	%	examples/01.Basics/Skeleton_Multi flash	%	examples/01.Basics/Skeleton_Multi RAM for global variables	%	examples/01.Basics/Table_Resolution flash	%	examples/01.Basics/Table_Resolution RAM for global variables	%	examples/01.Basics/Vibrato flash	%	examples/01.Basics/Vibrato RAM for global variables	%	examples/01.Basics/Vibrato_Midi_Note flash	%	examples/01.Basics/Vibrato_Midi_Note RAM for global variables	%	examples/02.Control/Control_Echo_Theremin flash	%	examples/02.Control/Control_Echo_Theremin RAM for global variables	%	examples/02.Control/Control_Oscil_Wash flash	%	examples/02.Control/Control_Oscil_Wash RAM for global variables	%	examples/02.Control/Control_Tremelo flash	%	examples/02.Control/Control_Tremelo RAM for global variables	%	examples/02.Control/EventDelay flash	%	examples/02.Control/EventDelay RAM for global variables	%	examples/02.Control/Line_Gliss flash	%	examples/02.Control/Line_Gliss RAM for global variables	%	examples/02.Control/Line_Gliss_Double_32k_HIFI flash	%	examples/02.Control/Line_Gliss_Double_32k_HIFI RAM for global variables	%	examples/02.Control/Metronome_SampleHuffman flash	%	examples/02.Control/Metronome_SampleHuffman RAM for global variables	%	examples/02.Control/Stop_Start flash	%	examples/02.Control/Stop_Start RAM for global variables	%	examples/06.Synthesis/AMsynth flash	%	examples/06.Synthesis/AMsynth RAM for global variables	%	examples/06.Synthesis/AMsynth_HIFI flash	%	examples/06.Synthesis/AMsynth_HIFI RAM for global variables	%	examples/06.Synthesis/Brown_Noise_Realtime flash	%	examples/06.Synthesis/Brown_Noise_Realtime RAM for global variables	%	examples/06.Synthesis/Detuned_Beats_Wash flash	%	examples/06.Synthesis/Detuned_Beats_Wash RAM for global variables	%	examples/06.Synthesis/Difference_Tone flash	%	examples/06.Synthesis/Difference_Tone RAM for global variables	%	examples/06.Synthesis/Difference_Tone_FixMath flash	%	examples/06.Synthesis/Difference_Tone_FixMath RAM for global variables	%	examples/06.Synthesis/FMsynth flash	%	examples/06.Synthesis/FMsynth RAM for global variables	%	examples/06.Synthesis/FMsynth_32k_HIFI flash	%	examples/06.Synthesis/FMsynth_32k_HIFI RAM for global variables	%	examples/06.Synthesis/FMsynth_FixMath flash	%	examples/06.Synthesis/FMsynth_FixMath RAM for global variables	%	examples/06.Synthesis/NonAlias_MetaOscil flash	%	examples/06.Synthesis/NonAlias_MetaOscil RAM for global variables	%	examples/06.Synthesis/PDresonant flash	%	examples/06.Synthesis/PDresonant RAM for global variables	%	examples/06.Synthesis/PWM_Phasing flash	%	examples/06.Synthesis/PWM_Phasing RAM for global variables	%	examples/06.Synthesis/SelfModulator flash	%	examples/06.Synthesis/SelfModulator RAM for global variables	%	examples/06.Synthesis/WaveFolder flash	%	examples/06.Synthesis/WaveFolder RAM for global variables	%	examples/06.Synthesis/WavePacket_Double flash	%	examples/06.Synthesis/WavePacket_Double RAM for global variables	%	examples/06.Synthesis/WavePacket_Sample flash	%	examples/06.Synthesis/WavePacket_Sample RAM for global variables	%	examples/06.Synthesis/WavePacket_Single flash	%	examples/06.Synthesis/WavePacket_Single RAM for global variables	%	examples/06.Synthesis/Waveshaper flash	%	examples/06.Synthesis/Waveshaper RAM for global variables	%
STMicroelectronics:stm32:GenF1:pnum=BLUEPILL_F103C8	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0
arduino:avr:mega	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0
arduino:avr:uno	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0
arduino:mbed_giga:giga	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0
arduino:renesas_uno:minima	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0
arduino:samd:adafruit_circuitplayground_m0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0
esp8266:esp8266:huzzah	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A
rp2040:rp2040:rpipico	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0
teensy:avr:teensy36	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0
teensy:avr:teensy41	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A

Click for full report CSV

Board,examples/01.Basics/Control_Gain<br>flash,%,examples/01.Basics/Control_Gain<br>RAM for global variables,%,examples/01.Basics/Sinewave<br>flash,%,examples/01.Basics/Sinewave<br>RAM for global variables,%,examples/01.Basics/Sinewave_HIFI<br>flash,%,examples/01.Basics/Sinewave_HIFI<br>RAM for global variables,%,examples/01.Basics/Skeleton<br>flash,%,examples/01.Basics/Skeleton<br>RAM for global variables,%,examples/01.Basics/Skeleton_Multi<br>flash,%,examples/01.Basics/Skeleton_Multi<br>RAM for global variables,%,examples/01.Basics/Table_Resolution<br>flash,%,examples/01.Basics/Table_Resolution<br>RAM for global variables,%,examples/01.Basics/Vibrato<br>flash,%,examples/01.Basics/Vibrato<br>RAM for global variables,%,examples/01.Basics/Vibrato_Midi_Note<br>flash,%,examples/01.Basics/Vibrato_Midi_Note<br>RAM for global variables,%,examples/02.Control/Control_Echo_Theremin<br>flash,%,examples/02.Control/Control_Echo_Theremin<br>RAM for global variables,%,examples/02.Control/Control_Oscil_Wash<br>flash,%,examples/02.Control/Control_Oscil_Wash<br>RAM for global variables,%,examples/02.Control/Control_Tremelo<br>flash,%,examples/02.Control/Control_Tremelo<br>RAM for global variables,%,examples/02.Control/EventDelay<br>flash,%,examples/02.Control/EventDelay<br>RAM for global variables,%,examples/02.Control/Line_Gliss<br>flash,%,examples/02.Control/Line_Gliss<br>RAM for global variables,%,examples/02.Control/Line_Gliss_Double_32k_HIFI<br>flash,%,examples/02.Control/Line_Gliss_Double_32k_HIFI<br>RAM for global variables,%,examples/02.Control/Metronome_SampleHuffman<br>flash,%,examples/02.Control/Metronome_SampleHuffman<br>RAM for global variables,%,examples/02.Control/Stop_Start<br>flash,%,examples/02.Control/Stop_Start<br>RAM for global variables,%,examples/06.Synthesis/AMsynth<br>flash,%,examples/06.Synthesis/AMsynth<br>RAM for global variables,%,examples/06.Synthesis/AMsynth_HIFI<br>flash,%,examples/06.Synthesis/AMsynth_HIFI<br>RAM for global variables,%,examples/06.Synthesis/Brown_Noise_Realtime<br>flash,%,examples/06.Synthesis/Brown_Noise_Realtime<br>RAM for global variables,%,examples/06.Synthesis/Detuned_Beats_Wash<br>flash,%,examples/06.Synthesis/Detuned_Beats_Wash<br>RAM for global variables,%,examples/06.Synthesis/Difference_Tone<br>flash,%,examples/06.Synthesis/Difference_Tone<br>RAM for global variables,%,examples/06.Synthesis/Difference_Tone_FixMath<br>flash,%,examples/06.Synthesis/Difference_Tone_FixMath<br>RAM for global variables,%,examples/06.Synthesis/FMsynth<br>flash,%,examples/06.Synthesis/FMsynth<br>RAM for global variables,%,examples/06.Synthesis/FMsynth_32k_HIFI<br>flash,%,examples/06.Synthesis/FMsynth_32k_HIFI<br>RAM for global variables,%,examples/06.Synthesis/FMsynth_FixMath<br>flash,%,examples/06.Synthesis/FMsynth_FixMath<br>RAM for global variables,%,examples/06.Synthesis/NonAlias_MetaOscil<br>flash,%,examples/06.Synthesis/NonAlias_MetaOscil<br>RAM for global variables,%,examples/06.Synthesis/PDresonant<br>flash,%,examples/06.Synthesis/PDresonant<br>RAM for global variables,%,examples/06.Synthesis/PWM_Phasing<br>flash,%,examples/06.Synthesis/PWM_Phasing<br>RAM for global variables,%,examples/06.Synthesis/SelfModulator<br>flash,%,examples/06.Synthesis/SelfModulator<br>RAM for global variables,%,examples/06.Synthesis/WaveFolder<br>flash,%,examples/06.Synthesis/WaveFolder<br>RAM for global variables,%,examples/06.Synthesis/WavePacket_Double<br>flash,%,examples/06.Synthesis/WavePacket_Double<br>RAM for global variables,%,examples/06.Synthesis/WavePacket_Sample<br>flash,%,examples/06.Synthesis/WavePacket_Sample<br>RAM for global variables,%,examples/06.Synthesis/WavePacket_Single<br>flash,%,examples/06.Synthesis/WavePacket_Single<br>RAM for global variables,%,examples/06.Synthesis/Waveshaper<br>flash,%,examples/06.Synthesis/Waveshaper<br>RAM for global variables,%
STMicroelectronics:stm32:GenF1:pnum=BLUEPILL_F103C8,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0
arduino:avr:mega,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0
arduino:avr:uno,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0
arduino:mbed_giga:giga,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0
arduino:renesas_uno:minima,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0
arduino:samd:adafruit_circuitplayground_m0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0
esp8266:esp8266:huzzah,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A
rp2040:rp2040:rpipico,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0
teensy:avr:teensy36,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0
teensy:avr:teensy41,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A

[tomcombriat]

Alright, sorry for the delay since the original issues (but I did not used to own an ESP32 ;) but this should update the ESP32 port to the new API.

Seems to work well here (tested on both an ESP32 and ESP32-S3) but testing is always welcome, so mentioning thereafter people that might be concerned: @sensorium , @kicetwigs , @thomasfredericks , @MatteoHMarangoni , @1183747933 , @dietervandoren , @amiel .

Documentation is done (I think) but will only be published once merged.

[amiel]

Thank you so much!!!!!

As of yesterday, this was working well for me using an esp32 (just plain original esp32) with:

#define MOZZI_AUDIO_MODE MOZZI_OUTPUT_I2S_DAC
// and one custom pin
#define MOZZI_I2S_PIN_WS 25

I'm using headphones with the PT8211, which is not recommended, so it's hard to say if the sound is good.

I will test again tomorrow with the latest changes.

[tomcombriat]

@amiel Thanks for this! Really appreciate some feedback! I think, for a PT8211, you should also have (and 25 should be the default for WS):

#define MOZZI_I2S_FORMAT MOZZI_I2S_FORMAT_LSBJ

[amiel]

Ohhhh.Thank you, I'll try that out!

[amiel]

Have you ever used a MAX98357A? That was my initial attempt and I never got it to sound right (but the PT8211 worked out-of-the-box with mozzi 1). I'm wondering if maybe I just needed to do something like MOZZI_I2S_FORMAT_LSBJ.

[tomcombriat]

@amiel

That was my initial attempt and I never got it to sound right (but the PT8211 worked out-of-the-box with mozzi 1)

Was that with an ESP32?

There are two (at least…) formats to I2S: standard, and LSBJ (and variants on each -_-), PT8211 is LSBJ but most DAC are on the standard. If I got the previous port okay, the I2S was configured for LSBJ and not modifiable to the other format which would explain what you observed. In order to keep coherency with the other I2S ports (especially RP2040) I changed the default format to plain (which should work with the MAX):

the MAX98357A follows standard I2S timing by allowing a delay of one BCLK cycle after the LRCLK transition before the beginning of a new data word

I have not tested though (I kind of remember now that I might have one around…) and the signals on the scope look a lot like standard I2S.

[amiel]

Yes, it was with an ESP32.

the I2S was configured for LSBJ and not modifiable to the other format which would explain what you observed.

This is really good to know. I will try the MAX98357A again, as I would prefer to use that for my project anyway. I'll let you know how it goes if that would be helpful.

[amiel]

FYI: This is working perfectly with the MAX98357A (no LSBJ). Thank you so much!

[tomcombriat]

@amiel Thanks for the feedback!