ESP32-Korvo wake_word_detection/afe/ keeps rebooting on board initialisation (AIS-2208)

[SpringTune]

Checklist

• Checked the issue tracker for similar issues to ensure this is not a duplicate
• Read the documentation to confirm the issue is not addressed there and your configuration is set correctly
• Tested with the latest version to ensure the issue hasn't been fixed

How often does this bug occurs?

always

Expected behavior

Run the wake_word_detection/afe/ example on the ESP32-Korvo. Pass the board init phase.

Actual behavior (suspected bug)

ESP32-Korvo board initialisation seems to fail setting up I2S
It seems that I2S is attempting to use GPIO 0, which is alreay in use.
Reconfiguration also fails, leading to a forced crash

Error logs or terminal output

I (27) boot: ESP-IDF v5.5.1 2nd stage bootloader
I (27) boot: compile time Nov 20 2025 12:59:06
I (27) boot: Multicore bootloader
I (29) boot: chip revision: v3.0
I (31) qio_mode: Enabling default flash chip QIO
I (36) boot.esp32: SPI Speed      : 80MHz
I (40) boot.esp32: SPI Mode       : QIO
I (43) boot.esp32: SPI Flash Size : 16MB
I (47) boot: Enabling RNG early entropy source...
I (51) boot: Partition Table:
I (54) boot: ## Label            Usage          Type ST Offset   Length
I (60) boot:  0 factory          factory app      00 00 00010000 00500000
I (67) boot: End of partition table
I (70) esp_image: segment 0: paddr=00010020 vaddr=3f400020 size=16730h ( 91952) map
I (101) esp_image: segment 1: paddr=00026758 vaddr=3ffb0000 size=03ccch ( 15564) load
I (106) esp_image: segment 2: paddr=0002a42c vaddr=40080000 size=05bech ( 23532) load
I (113) esp_image: segment 3: paddr=00030020 vaddr=400d0020 size=4288ch (272524) map
I (183) esp_image: segment 4: paddr=000728b4 vaddr=40085bec size=0d290h ( 53904) load
I (199) esp_image: segment 5: paddr=0007fb4c vaddr=50000000 size=00020h (    32) load
I (209) boot: Loaded app from partition at offset 0x10000
I (209) boot: Disabling RNG early entropy source...
I (219) quad_psram: This chip is ESP32-D0WD
I (220) esp_psram: Found 8MB PSRAM device
I (220) esp_psram: Speed: 80MHz
I (220) esp_psram: PSRAM initialized, cache is in low/high (2-core) mode.
W (227) esp_psram: Virtual address not enough for PSRAM, map as much as we can. 4MB is mapped
I (235) cpu_start: Multicore app
I (752) esp_psram: SPI SRAM memory test OK
I (760) cpu_start: Pro cpu start user code
I (760) cpu_start: cpu freq: 240000000 Hz
I (760) app_init: Application information:
I (760) app_init: Project name:     wake_word_detection
I (765) app_init: App version:      v0.3.0-366-g6a8ca98
I (770) app_init: Compile time:     Nov 20 2025 12:58:52
I (775) app_init: ELF file SHA256:  96b904321...
I (779) app_init: ESP-IDF:          v5.5.1
I (783) efuse_init: Min chip rev:     v0.0
I (787) efuse_init: Max chip rev:     v3.99
I (791) efuse_init: Chip rev:         v3.0
I (795) heap_init: Initializing. RAM available for dynamic allocation:
I (801) heap_init: At 3FFAE6E0 len 00001920 (6 KiB): DRAM
I (806) heap_init: At 3FFB46A8 len 0002B958 (174 KiB): DRAM
I (811) heap_init: At 3FFE0440 len 00003AE0 (14 KiB): D/IRAM
I (817) heap_init: At 3FFE4350 len 0001BCB0 (111 KiB): D/IRAM
I (822) heap_init: At 40092E7C len 0000D184 (52 KiB): IRAM
I (828) esp_psram: Adding pool of 4096K of PSRAM memory to heap allocator
I (835) spi_flash: detected chip: generic
I (838) spi_flash: flash io: qio
W (841) i2c: This driver is an old driver, please migrate your application code to adapt `driver/i2c_master.h`
I (851) main_task: Started on CPU0
I (861) esp_psram: Reserving pool of 32K of internal memory for DMA/internal allocations
I (861) main_task: Calling app_main()
W (861) i2s_common: GPIO 0 is not usable, maybe conflict with others
E (871) esp_clock_output: esp_clock_output_start(206): Selected io is already mapped by another signal
E (871) i2s_common: i2s_check_set_mclk(935): mclk configure failed
E (881) i2s_std: i2s_std_set_gpio(179): mclk config failed
E (891) i2s_std: i2s_channel_init_std_mode(246): initialize channel failed while setting gpio pins
E (891) i2s_common: i2s_channel_enable(1189): the channel has already enabled or not initialized
I (901) ES7210: Work in Slave mode
I (911) ES7210: Enable ES7210_INPUT_MIC1
I (911) ES7210: Enable ES7210_INPUT_MIC2
I (911) ES7210: Enable ES7210_INPUT_MIC3
I (921) ES7210: Enable ES7210_INPUT_MIC4
I (921) ES7210: Enable TDM mode
E (931) i2s_common: i2s_channel_disable(1218): the channel has not been enabled yet
I (931) I2S_IF: channel mode 0 bits:32/32 channel:2 mask:3
E (941) i2s_std: i2s_channel_reconfig_std_slot(342): invalid state, I2S should be disabled before reconfiguring the slot
Guru Meditation Error: Core  0 panic'ed (StoreProhibited). Exception was unhandled.



--- Stack trace ---
Backtrace: 0x400dc281:0x3ffb5750 0x400dc3e3:0x3ffb57f0 0x400dc44e:0x3ffb5830 0x400dc611:0x3ffb5860 0x400dba0e:0x3ffb5890 0x400db3f6:0x3ffb58b0 0x400db4e9:0x3ffb5910 0x400db581:0x3ffb5930 0x400db151:0x3ffb5950 0x400db087:0x3ffb5970 0x40111e7c:0x3ffb59a0 0x4008b699:0x3ffb59d0
--- 0x400dc281: set_drv_fs at C:/Users/sprin/Desktop/Work/99sensors/esp32-korvo/esp-skainet/examples/wake_word_detection/afe/managed_components/espressif__esp_codec_dev/platform/audio_codec_data_i2s.c:140
--- 0x400dc3e3: set_fs at C:/Users/sprin/Desktop/Work/99sensors/esp32-korvo/esp-skainet/examples/wake_word_detection/afe/managed_components/espressif__esp_codec_dev/platform/audio_codec_data_i2s.c:245  
--- 0x400dc44e: check_fs_compatible at C:/Users/sprin/Desktop/Work/99sensors/esp32-korvo/esp-skainet/examples/wake_word_detection/afe/managed_components/espressif__esp_codec_dev/platform/audio_codec_data_i2s.c:268
--- 0x400dc611: _i2s_data_set_fmt at C:/Users/sprin/Desktop/Work/99sensors/esp32-korvo/esp-skainet/examples/wake_word_detection/afe/managed_components/espressif__esp_codec_dev/platform/audio_codec_data_i2s.c:443
--- 0x400dba0e: esp_codec_dev_open at C:/Users/sprin/Desktop/Work/99sensors/esp32-korvo/esp-skainet/examples/wake_word_detection/afe/managed_components/espressif__esp_codec_dev/esp_codec_dev.c:179      
--- 0x400db3f6: bsp_codec_adc_init at C:/Users/sprin/Desktop/Work/99sensors/esp32-korvo/esp-skainet/components/hardware_driver/boards/esp32-korvo/bsp_board.c:114
--- 0x400db4e9: bsp_codec_init at C:/Users/sprin/Desktop/Work/99sensors/esp32-korvo/esp-skainet/components/hardware_driver/boards/esp32-korvo/bsp_board.c:368
--- 0x400db581: bsp_board_init at C:/Users/sprin/Desktop/Work/99sensors/esp32-korvo/esp-skainet/components/hardware_driver/boards/esp32-korvo/bsp_board.c:429
--- 0x400db151: esp_board_init at C:/Users/sprin/Desktop/Work/99sensors/esp32-korvo/esp-skainet/components/hardware_driver/esp_board_init.c:30
--- 0x400db087: app_main at C:/Users/sprin/Desktop/Work/99sensors/esp32-korvo/esp-skainet/examples/wake_word_detection/afe/main/main.c:84
--- 0x40111e7c: main_task at C:/Users/sprin/esp/v5.5.1/esp-idf/components/freertos/app_startup.c

Steps to reproduce the behavior

1. Clone repo
2. cd examples/wake_word_detection/afe/
3. idf.py build flash monitor

Project release version

master

System architecture

Intel/AMD 64-bit (modern PC, older Mac)

Operating system

Windows

Operating system version

Windows 11

Shell

other (details in Additional context)

Additional context

ESP-IDF terminal

[seksity]

Getting the same issue, and finding the solution ASAP