I2S not initialized after updating the Arduino ESP core to version 3.1.2

[cniedzi]

After installing the latest version of the library, I get the following errors just after audio.setPinout(I2S_BCLK, I2S_LRC, I2S_DOUT); command:

E (11889) i2s_common: i2s_channel_disable(1116): the channel has not been enabled yet
E (11890) i2s_std: i2s_channel_reconfig_std_gpio(357): Invalid state, I2S should be disabled before reconfiguring the gpio
E (11897) i2s_common: i2s_channel_enable(1090): the channel has already enabled or not initialized

ESP32-S3-WROOM-1-N16R8

Should we add any command or config the latest version to work?

[cniedzi]

False alarm :) The errors are shown after upgrading ESP core to 3.1.2.

[schreibfaul1]

Arduino 3.1.3 then probably uses a newer IDF which probably changes something in the I2S area. I'll have a look at this soon.

[Zhentao-Lin]

I've also encountered this issue. It works fine for me in version 3.1.1, but not in versions 3.1.2 and 3.1.3.

[cniedzi]

I've also encountered this issue. It works fine for me in version 3.1.1, but not in versions 3.1.2 and 3.1.3.

confirm

[Marcin-Fenger]

3.1.3 works fine as previous

[cniedzi]

3.1.3 works fine as previous

what ESP?

[Marcin-Fenger]

ESP32 WROVER n16r8

[cniedzi]

My ESP32-S3-WROOM-1-N16R8 doesn't work.

[Marcin-Fenger]

try:

m_i2s_chan_cfg.dma_desc_num = 16; // number of DMA buffer
m_i2s_chan_cfg.dma_frame_num = 512; // I2S frame number in one DMA buffer.

I use this settings

[Marcin-Fenger]

I use v3.1.0a so far, but it does not matter i think so

[Zhentao-Lin]

I use v3.1.0a so far, but it does not matter i think so

3.1.0 and 3.1.1 is based on 5.3.2, while 5.1.2 and 5.1.3 are based on 5.3. Why would you think they're not contributing to the problem? Did you compare their driver codes?
https://github.com/espressif/arduino-esp32/releases

[schreibfaul1]

In the Arduino IDE I have the error neither in the Arduio version 3.1.2 nor in the version 3.1.3

If I enter the following in PlatformIO: platform = https://github.com/pioarduino/platform-espressif32/releases/download/53.03.13/platform-espressif32.zip ; Arduino 3.1.3 / IDF 5.3.2

no DMA memory is made available for I2S. There is nothing I can do.
Set framework = arduino, espidf and configure it by yourself.

[cniedzi]

Does it work for you in Arduino IDE 3.1.2 & 3.1.3?

In the Arduino IDE I have the error neither in the Arduio version 3.1.2 nor in the version 3.1.3

If I enter the following in PlatformIO: platform = https://github.com/pioarduino/platform-espressif32/releases/download/53.03.13/platform-espressif32.zip ; Arduino 3.1.3 / IDF 5.3.2

no DMA memory is made available for I2S. There is nothing I can do. Set framework = arduino, espidf and configure it by yourself.

[schreibfaul1]

The Arduino version 3.1.2 and 3.1.3 seems to be perfectly fine as the Arduino IDE shows. I don't know what is set in the background, but even if I halve the I2S DMA it is not enough.

[cniedzi]

Could you share some Arduino IDE settings to try to make it working on my end?

PS. On 3.1.3, if I disable PSRAM, it is still restarting.

[cniedzi]

Changes regarding I2S in Arduino 3.1.2:

I2S
Fix(i2s): Check if pin is used before clearing bus by @P-R-O-C-H-Y in https://github.com/espressif/arduino-esp32/pull/10833
Fix(i2s): Add missing initializer for I2S CLK config by @me-no-dev in https://github.com/espressif/arduino-esp32/pull/10963

They might be the reason...

@me-no-dev , @P-R-O-C-H-Y - fyi, maybe you will be able to help.

[schreibfaul1]

Hello @cniedzi,
thank you for your research and your contribution.
Both pull requests
espressif/arduino-esp32#10833
espressif/arduino-esp32#10963
are most likely not the cause and do not solve our problem.

In PlatformIO, I2S from Arduino 3.1.2 does not receive DMA memory (I don't know the reason, I have no idea what happens internally), but you can do it yourself.
Please take the platformio.ini
https://github.com/schreibfaul1/ESP32-MiniWebRadio/blob/master/platformio.ini
(from our radio application) and add the appropriate sdkconfig and it will work.

And I think it's a bug in PlatformIO or PioArduino? because I2S has nothing to do with Arduino, it's a question of implementation in the IDF.

[schreibfaul1]

I have opened an issue
pioarduino/platform-espressif32#120
Perhaps the experts know more :-))

[cniedzi]

Hello @cniedzi, thank you for your research and your contribution. Both pull requests espressif/arduino-esp32#10833 espressif/arduino-esp32#10963 are most likely not the cause and do not solve our problem.

In PlatformIO, I2S from Arduino 3.1.2 does not receive DMA memory (I don't know the reason, I have no idea what happens internally), but you can do it yourself. Please take the platformio.ini https://github.com/schreibfaul1/ESP32-MiniWebRadio/blob/master/platformio.ini (from our radio application) and add the appropriate sdkconfig and it will work.

And I think it's a bug in PlatformIO or PioArduino? because I2S has nothing to do with Arduino, it's a question of implementation in the IDF.

Thanks @schreibfaul1. I've never used PlatformIO, but maybe it's good time to learn :)

[sivar2311]

If this is working in the ArduinoIDE but not in PlatformIO some settings must be different.
Please show a screenshot of your ArduinoIDE settings as well as the used platformio.ini and the used board manifest.

[cniedzi]

If this is working in the ArduinoIDE but not in PlatformIO some settings must be different. Please show a screenshot of your ArduinoIDE settings as well as the used platformio.ini and the used board manifest.

For me it isn't working in ArduinoIDE :(

[sivar2311]

For me, i have the same results in ArduinoIDE and PlatformIO using an ESP32-S3-DevKitC1-N16R8:

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:0x3fce2820,len:0x1188
load:0x403c8700,len:0x4
load:0x403c8704,len:0xbf0
load:0x403cb700,len:0x30e4
entry 0x403c88ac
E (20) gdma: gdma_register_tx_event_callbacks(464): user context not in internal RAM
E (48) i2s_common: i2s_init_dma_intr(734): Register tx callback failed
E (48) i2s_std: i2s_channel_init_std_mode(236): initialize dma interrupt failed

But it seems to work when disabling the PSRAM!

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:0x3fce2820,len:0x1188
load:0x403c8700,len:0x4
load:0x403c8704,len:0xbf0
load:0x403cb700,len:0x30e4
entry 0x403c88ac

I think the bug is somewhere related to the PSRAM, but not to PlatformIO or pioarduino (which are just the build system)

Therefore the error should be reported to Espressif.

[cniedzi]

For me, i have the same results in ArduinoIDE and PlatformIO using an ESP32-S3-DevKitC1-N16R8:

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:0x3fce2820,len:0x1188
load:0x403c8700,len:0x4
load:0x403c8704,len:0xbf0
load:0x403cb700,len:0x30e4
entry 0x403c88ac
E (20) gdma: gdma_register_tx_event_callbacks(464): user context not in internal RAM
E (48) i2s_common: i2s_init_dma_intr(734): Register tx callback failed
E (48) i2s_std: i2s_channel_init_std_mode(236): initialize dma interrupt failed

But it seems to work when disabling the PSRAM!

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:0x3fce2820,len:0x1188
load:0x403c8700,len:0x4
load:0x403c8704,len:0xbf0
load:0x403cb700,len:0x30e4
entry 0x403c88ac

I think the bug is somewhere related to the PSRAM, but not to PlatformIO or pioarduino (which are just the build system)

Therefore the error should be reported to Espressif.

I own the same board as yours. When I disable PSRAM, it still crashes...

[sivar2311]

I don't see a crash here....

[cniedzi]

I don't see a crash here....

btw. what board do you choose in Arduino IDE?

[sivar2311]

And here is my platformio.ini:

[env:esp32-s3-devkitc-1]
platform = espressif32
board = esp32-s3-devkitc-1
framework = arduino

board_build.arduino.memory_type = qio_opi
board_build.flash_mode = qio
board_build.psram_type = opi
board_upload.flash_size = 16MB
board_upload.maximum_size = 16777216
board_build.extra_flags = 
  -DBOARD_HAS_PSRAM

These error messages disapear when turning off the PSRAM:

E (20) gdma: gdma_register_tx_event_callbacks(464): user context not in internal RAM
E (48) i2s_common: i2s_init_dma_intr(734): Register tx callback failed
E (48) i2s_std: i2s_channel_init_std_mode(236): initialize dma interrupt failed

[cniedzi]

@sivar2311 you're right. it works without PSRAM...

ArduinoIDE
ESP32S3 Dev Module

Flash Size: 16mB (128Mb)
Partition scheme: Huge App (3MB No OTA/1MB SPIFFS)
PSRAM: Disabled

Works OK

---

Flash Size: 16mB (128Mb)
Partition scheme: Huge App (3MB No OTA/1MB SPIFFS)
PSRAM: OPI PSRAM

Doesn't work!

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:0x3fce2820,len:0x1188
load:0x403c8700,len:0x4
load:0x403c8704,len:0xbf0
load:0x403cb700,len:0x30e4
entry 0x403c88ac
E (324) gdma: gdma_register_tx_event_callbacks(464): user context not in internal RAM
E (372) i2s_common: i2s_init_dma_intr(734): Register tx callback failed
E (372) i2s_std: i2s_channel_init_std_mode(236): initialize dma interrupt failed
E (375) i2s_common: i2s_channel_enable(1090): the channel has already enabled or not initialized
E (972) i2s_common: i2s_channel_disable(1116): the channel has not been enabled yet
E (973) i2s_std: i2s_channel_reconfig_std_gpio(357): Invalid state, I2S should be disabled before reconfiguring the gpio
E (980) i2s_common: i2s_channel_enable(1090): the channel has already enabled or not initialized
audio_info: PSRAM found, inputBufferSize: 638965 bytes
audio_info: buffers freed, free Heap: 212996 bytes
audio_info: connect to: "cmr-hosting.com" on port 7005 path "/;stream/1"
audio_info: SSL has been established in 546 ms, free Heap: 172420 bytes
audio_info: chunked data transfer
audio_info: MP3Decoder has been initialized, free Heap: 172536 bytes , free stack 3360 DWORDs
audio_info: stream ready
audio_info: syncword found at pos 0
E (4440) i2s_common: i2s_channel_write(1211): The channel is not enabled
audio_info: MPEG-2.5, Layer I
E (4446) i2s_common: i2s_channel_disable(1116): the channel has not been enabled yet
E (4446) i2s_std: i2s_channel_reconfig_std_clock(277): invalid state, I2S should be disabled before reconfiguring the clock
E (4456) i2s_std: i2s_channel_reconfig_std_slot(327): invalid state, I2S should be disabled before reconfiguring the slot
E (4468) i2s_common: i2s_channel_enable(1090): the channel has already enabled or not initialized
audio_info: Channels: 2
audio_info: SampleRate: 44100
audio_info: BitsPerSample: 16
audio_info: BitRate: 320000
E (4499) i2s_common: i2s_channel_write(1211): The channel is not enabled

---

PS. Strange, today it isn't crushing without PSRAM (while yesterday it was)...

[copych]

I confirm the issue for ESP32-S3, Arduino IDE 2, core 3.1.2 and 3.1.3. PSRAM ON.

[schreibfaul1]

My guess is that if PSRAM is found, the I2S buffers are allocated there, but DMA is not switched on.

[Marcin-Fenger]

3.1.0 and 3.1.1 is based on 5.3.2, while 5.1.2 and 5.1.3 are based on 5.3. Why would you think they're not contributing to the problem? Did you compare their driver codes?

I have written about my current version of audio library:

• Version 3.1.0a
• Updated on: Jan 16.2025
• Author: Wolle (schreibfaul1)

used in PlatformIO with:

platform = https://github.com/pioarduino/platform-espressif32/releases/download/53.03.13/platform-espressif32.zip

And it is working now on ESP32 WROVER n16r8 . Is it clear now?

[sivar2311]

Version 3.1.0a

Afaik there is no Version 3.1.0a
There have been a few release candiates... RC1, RC2 etc...

https://github.com/pioarduino/platform-espressif32/releases/download/53.03.13/platform-espressif32.zip is not 3.1.0!
This is 3.1.3 - See this list

And it is working now on ESP32 WROVER n16r8 .

What about the PSRAM in your project? (enabled / disabled) ?

Is it clear now?

No, see the points above.

[Marcin-Fenger]

Please read carefully. Talk about audio.cpp version... I use very latest vesrion 3.1.3 IDF 5.3.2. Simply click and check it out https://github.com/pioarduino/platform-espressif32/releases/

[sivar2311]

Please read carefully

Sorry, my fault,
I got confused by the versions - sorry.

What about your PSRAM settings?
Is PSRAM enabled or disabled in your working project?

[Marcin-Fenger]

PSRAM is enabled

My project does not start without it. All structures of data are moved to.

try add:

#define CONFIG_I2S_ISR_IRAM_SAFE 1
#define CONFIG_I2S_SUPPRESS_DEPRECATE_WARN 1
#define CONFIG_I2S_ENABLE_DEBUG_LOG 1

I have made some individual changes in audio.cpp and audio.h to start 24 bit and change mclk. Is experimental and not fully stable when I change width of bits when the music play. I can change MCLK without any troubles. Unfortunately decoder does not support 24 bits by now.

[sivar2311]

#define CONFIG_I2S_ISR_IRAM_SAFE 1

Sounds reasonable per documentation:

Places driver object into DRAM (in case it is linked to PSRAM by accident).

@cniedzi & @copych
The solution for PSRAM enabled boards on PlatformIO based projects should be

build_flags = 
  -D CONFIG_I2S_ISR_IRAM_SAFE=1

Edit:
Since the underlying ESP-IDF is already precompiled, a simple build_flag might not be sufficient.
However, pioardino's hybrid-compile feature could help here:

custom_sdkconfig = 
  'CONFIG_I2S_ISR_IRAM_SAFE=y'

[cniedzi]

#define CONFIG_I2S_ISR_IRAM_SAFE 1

Sounds reasonable per documentation:

Places driver object into DRAM (in case it is linked to PSRAM by accident).

It doesn't help in Arduino IDE.

[sivar2311]

@cniedzi

You might need to edit the files directly - See #975 (comment) - since the ArduinoIDE does not have the hybrid compile feature.

[schreibfaul1]

If Arduino is used as a component in PlatformIO, it works. Also with Arduino V3.1.3
https://github.com/schreibfaul1/ESP32_Arduino_ESPIDF

[cniedzi]

If Arduino is used as a component in PlatformIO, it works. Also with Arduino V3.1.3 https://github.com/schreibfaul1/ESP32_Arduino_ESPIDF

Confirm :)

----------------------------------
ESP32 Chip: ESP32-S3
Arduino Version: 3.2.0
ESP-IDF Version: 5.4.0
ARDUINO_LOOP_STACK_SIZE 8192 words (32 bit)
PSRAM SIZE 8388608
----------------------------------

audio_info: PSRAM found, inputBufferSize: 638965 bytes
audio_info: buffers freed, free Heap: 198375 bytes
audio_info: connect to: "s0.radiohost.pl" on port 8018 path "/stream"
audio_info: Connection has been established in 71 ms, free Heap: 197463 bytes
audio_info: MP3Decoder has been initialized, free Heap: 189007 bytes , free stack 4408 DWORDs
audio_info: stream ready
audio_info: syncword found at pos 0
audio_info: MPEG-2.5, Layer I
audio_info: Channels: 2
audio_info: SampleRate: 44100
audio_info: BitsPerSample: 16
audio_info: BitRate: 256000
audio_info: StreamTitle='Fancy - Flames Of Love (Extended Version)

[schreibfaul1]

Thanks for the feedback.
With the Arduino IDE it will probably be nothing. It is not clear to me with which values ​​Arduino is compiled. It's just that I2S DMA no longer works.

[cniedzi]

Fix is coming :)
espressif/arduino-esp32#11004 (comment)

[me-no-dev]

Also reported to ESP-IDF, because this is definitely a bug there. espressif/esp-idf#15533

[cniedzi]

Looks like it works @3.2.0 RC2

[schreibfaul1]

Yes, that looks good, it works with 3.2.0-RC2.