Make it's work on ESP32S3

[rudiars]

hi marcel, I tried this project on an ESP32S3 with the following onboard pin configuration:
MIDI_VIA_SERIAL2
MIDIRX_PIN 4
MIDITX_PIN 9
I2S_BCLK_PIN 5 // I2S BIT CLOCK pin (BCL BCK CLK)
I2S_DOUT_PIN 6 // to I2S DATA IN pin (DIN D DAT)
I2S_WCLK_PIN 7 // I2S WORD CLOCK pin (WCK WCL LCK)
SDMMC_D1 3 // my choice
SDMMC_D0 13 // PCB hardlink
SDMMC_CLK 12 // PCB hardlink
SDMMC_CMD 11 // LOLIN PCB hardlink
SDMMC_D3 46 // PCB hardlink
SDMMC_D2 10 // my choice

how to configure these pn on your library ?

thanks for response

[rudiars]

i try edit ml_boards.h add line :
#elif (defined BOARD_ESP32S3)
#include "./boards/board_esp32s3.h"

ane make new board file board_esp32s3.h
/* file
#ifndef BOARDS_BOARD_ESP32S3_H_
#define BOARDS_BOARD_ESP32S3_H_

/* on board led */
#define BLINK_LED_PIN 48

/*

• Define and connect your PINS to DAC here
  */

#ifdef I2S_NODAC
#define I2S_NODAC_OUT_PIN 6 /* noisy sound without DAC, add capacitor in series! /
#else
/

• pins to connect a real DAC like PCM5201
  /
  #define I2S_BCLK_PIN 5
  #define I2S_WCLK_PIN 7
  #define I2S_DOUT_PIN 6
  / I2S_DIN_PIN is not used here */
  #endif

#ifdef ADC_TO_MIDI_ENABLED
#define ADC_INPUTS 8
#define ADC_MUL_S0_PIN 15
#define ADC_MUL_S1_PIN 16
#define ADC_MUL_S2_PIN 17
#define ADC_MUL_SIG_PIN 8
#endif

/*

• Pins defined by board
  */
  #define MIDI_RX2_PIN 4
  #define RXD2 4
  #define TXD2 9

#define SDMMC_D1 3 // my choice
#define SDMMC_D0 13 // PCB hardlink
#define SDMMC_CLK 12 // PCB hardlink
#define SDMMC_CMD 11 // LOLIN PCB hardlink
#define SDMMC_D3 46 // PCB hardlink
#define SDMMC_D2 10 // my choice

#endif /* BOARDS_BOARD_ESP32_DOIT_H_ */

end of file
*/

I2S ok (got BCK dan LRCK signal)
if #define OUTPUT_SAW_TEST i got the waveform DAC out

MIDI INput OK
sample load OK but verry bad sound

[rudiars]

and these serial debug :

ESP-ROM:esp32s3-20210327
Build:Mar 27 2021
rst:0x1 (POWERON),boot:0x8 (SPI_FAST_FLASH_BOOT)
SPIWP:0xee
mode:DIO, clock div:1
load:0x3fce3808,len:0x4bc
load:0x403c9700,len:0xbd8
load:0x403cc700,len:0x2a0c
entry 0x403c98d0
Hallo
ml_sampler
ESP IDF Version: 4, 4, 7
Chip has embedded flash memory.
Chip has 2.4GHz WiFi.
Chip has Bluetooth LE.
Chip has Bluetooth Classic.
Chip has IEEE 802.15.4.
Chip has embedded psram.
I2S configured using following pins:
BCLK,BCK: 5
WCLK,LCK: 7
DOUT: 6
DIN: -1
Setup Serial2 with 31250 baud with rx: IO4 only
Setup MidiPort2 using Serial2
cable| raw msg | description | channel | data 1 | data 2
Setup Serial2 with 31250 baud with rx: IO4 only
Setup MidiPort2 using Serial2
cable| raw msg | description | channel | data 1 | data 2

Loading data
Sampler Example
Try to allocate 8385531 bytes
Not able to allocate the complete PSRAM buffer!
Now trying to reduce the allocation buffer size...
alloced 8257524 bytes
Phaser Init ok
rev: 15329, 15329
Reverb is ready!
Loading data
no sd card
LittleFS Mount Successful!
List files ...

PappRohrSample.wav 15334
setup done!
All setup done!
SoundFontSamplerCtrl: 1
Reading wav: /PappRohrSample.wav
fileSize: 15326
lengthOfData: 16
byteRate: 96000
bytesPerSample: 2
bitsPerSample: 16
sampleRate: 48000
numberOfChannels: 1
data found
End of file reached
Sampler - Samplecount: 1
Sampler - Bufferusage: 0.185

2 | 90 34 3e | Note On | Channel 0 | Pitch 52 | Velocity 62
2 | 80 34 40 | Note Off | Channel 0 | Pitch 52 | Velocity 64

[marcel-licence]

Thank you very much for sharing. It may be possible that all SD Card pins are fixed but I didn't check the ESP32S3 spec. yet. On the ESP32 there is a fixed pin configuration.

[rudiars]

last try with examples from SD_MMC.h
add SD_MMC.setiPins (cmd,clk,d0,d1,d2,d3); //custom pin
before SD_MMC.begin();
it's successfully but won't work on our project

[marcel-licence]

Hm, okay that is a good point and a good test. I have only one ESP32S3 for testing. I could try to prepare a little SD breakout board in future. Did it work to playback samples so far? Does the SD-Card detection work?

[rudiars]

SD card success with this line :
if(!SD_MMC.setPins(SDMMC_CLK, SDMMC_CMD, SDMMC_D0, SDMMC_D1, SDMMC_D2, SDMMC_D3)){ //all pins defined in board header
Serial.println("Pin change failed!");
}
else{
Serial.println("Pin change sucess!");
}
before SD_MMC.begin();

09:05:58.776 -> Hallo
09:05:59.773 -> ml_sampler
09:05:59.773 -> ESP IDF Version: 4, 4, 7
09:05:59.773 -> Chip has embedded flash memory.
09:05:59.773 -> Chip has 2.4GHz WiFi.
09:05:59.773 -> Chip has Bluetooth LE.
09:05:59.773 -> Chip has Bluetooth Classic.
09:05:59.773 -> Chip has IEEE 802.15.4.
09:05:59.773 -> Chip has embedded psram.
09:05:59.773 -> I2S configured using following pins:
09:05:59.806 -> BCLK,BCK: 5
09:05:59.806 -> WCLK,LCK: 7
09:05:59.806 -> DOUT: 6
09:05:59.806 -> DIN: -1
09:05:59.806 -> Setup Serial2 with 31250 baud with rx: IO4 only
09:05:59.806 -> Setup MidiPort2 using Serial2
09:05:59.806 -> cable| raw msg | description | channel | data 1 | data 2
09:05:59.806 -> Setup Serial2 with 31250 baud with rx: IO4 only
09:05:59.806 -> Setup MidiPort2 using Serial2
09:05:59.806 -> cable| raw msg | description | channel | data 1 | data 2
09:06:01.071 ->
09:06:01.304 -> Loading data
09:06:01.304 -> Sampler Example
09:06:01.338 -> PSRAM init OK
09:06:01.338 -> PSRAM Found OK
09:06:01.338 -> Try to allocate 8385531 bytes
09:06:01.338 -> Not able to allocate the complete PSRAM buffer!
09:06:01.338 -> Now trying to reduce the allocation buffer size...
09:06:02.368 -> alloced 8257524 bytes
09:06:02.368 -> Phaser Init ok
09:06:02.368 -> Loading data
09:06:02.368 -> Pin change sucess!
09:06:02.401 -> Card Access: SDHC
09:06:02.401 -> System Volume Information/
09:06:02.401 -> WPSettings.dat 12
09:06:02.401 -> IndexerVolumeGuid 76
09:06:02.401 -> test.txt 1048576
09:06:02.401 -> foo.txt 13
09:06:02.434 -> My First Sample/
09:06:02.434 -> A0_Low.wav 2003012
09:06:02.468 -> A0_Mid.wav 1861460
09:06:02.468 -> A1_Low.wav 3144350

[rudiars]

littlefs work fine, but how to play long until note_off like strings or violin sample ?

[marcel-licence]

You can setup a loop point. I should add some example of it

[rudiars]

nice, that's important for lead synthesizer

[rudiars]

in my case need psramInit(); before using psram alloc to fix "Not able to allocate the complete PSRAM buffer!"

[marcel-licence]

I tried this on the ESP32 but no effect:

PSRAM init OK
Try to allocate 4192123 bytes
Not able to allocate the complete PSRAM buffer!
Now trying to reduce the allocation buffer size...
alloced 4128756 bytes

Seems there is still some segmentation on the PSRAM.

I used the following code:

  if (psramInit())
   {
       Serial.printf("PSRAM init OK\n");
   }
   else
   {
       Serial.printf("PSRAM init failed!\n");
   }

   uint32_t storageBytes = ESP.getFreePsram() ;
   Serial.printf("Try to allocate %d bytes\n", storageBytes);

   static uint8_t *storage = (uint8_t *)ps_calloc(storageBytes, 1);
   if (storage == NULL)
   {
       Serial.printf("Not able to allocate the complete PSRAM buffer!\nNow trying to reduce the allocation buffer size...\n");

       /*
        * for some reason using a newer ESP32 board library you cannot allocate the complete PSRAM memory
        * this loop will decrease the buffer size and repeat the allocation step again until it is successful
        */
       while ((storage == NULL))
       {
           storageBytes -= 1;
           storage = (uint8_t *)ps_calloc(storageBytes, 1);
       }
       Serial.printf("alloced %" PRIu32 " bytes\n", storageBytes);
   }

[marcel-licence]

How many bytes could be allocated after adding the init call?

[marcel-licence]

I tried to compile for ESP32S3 and execute it. It seems that a part of PSRAM is still not useable. I guess it could be used to manage the allocated memory

PSRAM init OK
PSRAM found OK
Try to allocate 8385775 bytes
Not able to allocate the complete PSRAM buffer!
Now trying to reduce the allocation buffer size...
alloced 8257524 bytes

[rudiars]

Sorry I wasn't careful, it turns out I was wrong about psraminit()