Compilation error on XIAO C6

[alfons12]

Hello,

trying to build an example using I2SStream and getting the following compilation error. I get this error on XIAO C6, didn't get the error on ESP32-WROOM.

The compilation error comes from the audio-tools library, could please clarify? Is C6 supported?

Thank you.

In file included from c:\Users\lukas\Documents\Arduino\libraries\audio-tools\src/AudioTools/CoreAudio/AudioI2S/I2SESP32V1.h:10,
from c:\Users\lukas\Documents\Arduino\libraries\audio-tools\src/AudioTools/CoreAudio/AudioI2S/I2SStream.h:10,
from c:\Users\lukas\Documents\Arduino\libraries\audio-tools\src/AudioTools.h:81,
from C:\Devel\MP3Test\MP3Test.ino:12:
c:\Users\lukas\Documents\Arduino\libraries\audio-tools\src/AudioTools/CoreAudio/AudioI2S/I2SESP32V1.h: In member function 'i2s_std_clk_config_t audio_tools::I2SDriverESP32V1::DriverI2S::getClockConfig(audio_tools::I2SConfigESP32V1&)':
C:\Users\lukas\AppData\Local\Arduino15\packages\esp32\tools\esp32-arduino-libs\idf-release_v5.3-489d7a2b-v1\esp32c6/include/esp_driver_i2s/include/driver/i2s_std.h:220:1: error: designator order for field 'i2s_std_clk_config_t::ext_clk_freq_hz' does not match declaration order in 'i2s_std_clk_config_t'
220 | }
| ^
c:\Users\lukas\Documents\Arduino\libraries\audio-tools\src/AudioTools/CoreAudio/AudioI2S/I2SESP32V1.h:268:11: note: in expansion of macro 'I2S_STD_CLK_DEFAULT_CONFIG'
268 | I2S_STD_CLK_DEFAULT_CONFIG((uint32_t)cfg.sample_rate);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~

exit status 1

Compilation error: exit status 1

[pschatzmann]

As far as I can see this issue has been introduced with Arduino ESP32 3.1.2!

[designer-systems-ltd]

I cleaned everything out and re-installed all libraries and its not not producing the error above, however the i2s config nolonger accepts the fixed_mclk value, this is the setup code:

`// Setup I2S configuration
auto config = i2s.defaultConfig(RXTX_MODE);
config.i2s_format = I2S_STD_FORMAT;
config.sample_rate = ((uint32_t)configReg.codec_sample_rate * 1000);
config.channels = 1;
config.bits_per_sample = 16;
config.fixed_mclk = 12288000;

// Setup I2S interface
config.pin_mck = GPIO_I2S_MCLK;
config.pin_bck = GPIO_I2S_SCLK;
config.pin_ws = GPIO_I2S_BCLK;
config.pin_data = GPIO_I2S_DOUT;
config.pin_data_rx = GPIO_I2S_DIN;

// Start driver
i2s.begin(config);`

How can we set this parameter ?

[pschatzmann]

Use mclk_multiple

[designer-systems-ltd]

Okay, I have setup mclk_multiple = 256 (256*48000 = 12288000) and reprogrammed; this is the debug I am getting when the above code is run:

[W] I2SESP32V1.h : 241 - Using channel_format: I2SChannelSelect::Left for mono
E (510) gdma: gdma_register_tx_event_callbacks(464): user context not in internal RAM
E (510) i2s_common: i2s_init_dma_intr(734): Register tx callback failed
E (513) i2s_std: i2s_channel_init_std_mode(236): initialize dma interrupt failed
[E] I2SESP32V1.h : 185 - i2s_channel_init_std_mode tx
E (536) i2s_common: i2s_channel_disable(1116): the channel has not been enabled yet
E (536) i2s_common: i2s_channel_disable(1116): the channel has not been enabled yet
[E] I2SESP32V1.h : 542 - Channels not started

Does not look promising.

[pschatzmann]

For what Arduino / IDF version ?
I don't think that the issue is in my framework...
Did you try with I2S_MCLK_MULTIPLE_256

[designer-systems-ltd]

PACKAGES:

• framework-arduinoespressif32 @ 3.1.3
• framework-arduinoespressif32-libs @ 5.3.0+sha.489d7a2b3a
• tool-esptoolpy @ 4.8.6
• tool-mkfatfs @ 2.0.1
• tool-mklittlefs @ 3.2.0
• tool-mkspiffs @ 2.230.0 (2.30)
• tool-riscv32-esp-elf-gdb @ 14.2.0+20240403
• tool-xtensa-esp-elf-gdb @ 14.2.0+20240403
• toolchain-riscv32-esp @ 13.2.0+20240530
• toolchain-xtensa-esp-elf @ 13.2.0+20240530

[pschatzmann]

I am not familiar with the PlatformIO versions: Maybe they use some old IDF version ?

In Arduino this is working w/o issues for versions >= 3.0 up to the latest 3.2 !