W (1852) i2s_common: GPIO 33 is not usable, maybe conflict with othe (BSP-541)

[diplfranzhoepfinger]

Board

M5Stack CoreS3

Hardware Description

M5Stack CoreS3

IDE Name

Espressif-IDE

Operating System

Linux

Description

https://github.com/espressif/esp-bsp/tree/master/examples/display_audio_photo

the Display blinks up a short moment, then goes dark.

Log:

Build:Mar 27 2021
rst:0x1 (POWERON),boot:0x28 (SPI_FAST_FLASH_BOOT)
SPIWP:0xee
mode:DIO, clock div:1
load:0x3fce2820,len:0x1918
load:0x403c8700,len:0x4
load:0x403c8704,len:0xe5c
load:0x403cb700,len:0x303c
entry 0x403c893c
I (27) boot: ESP-IDF v5.3-dirty 2nd stage bootloader
I (27) boot: compile time Aug 21 2024 20:53:14
I (27) boot: Multicore bootloader
I (30) boot: chip revision: v0.2
I (34) qio_mode: Enabling default flash chip QIO
I (39) boot.esp32s3: Boot SPI Speed : 80MHz
I (44) boot.esp32s3: SPI Mode       : QIO
I (49) boot.esp32s3: SPI Flash Size : 16MB
I (54) boot: Enabling RNG early entropy source...
I (59) boot: Partition Table:
I (63) boot: ## Label            Usage          Type ST Offset   Length
I (70) boot:  0 nvs              WiFi data        01 02 00009000 00006000
I (77) boot:  1 phy_init         RF data          01 01 0000f000 00001000
I (85) boot:  2 factory          factory app      00 00 00010000 00100000
I (92) boot:  3 storage          Unknown data     01 82 00110000 002f0000
I (100) boot: End of partition table
I (104) esp_image: segment 0: paddr=00010020 vaddr=3c070020 size=17e30h ( 97840) map
I (128) esp_image: segment 1: paddr=00027e58 vaddr=3fc97500 size=02e10h ( 11792) load
I (130) esp_image: segment 2: paddr=0002ac70 vaddr=40374000 size=053a8h ( 21416) load
I (137) esp_image: segment 3: paddr=00030020 vaddr=42000020 size=626ach (403116) map
I (203) esp_image: segment 4: paddr=000926d4 vaddr=403793a8 size=0e0ach ( 57516) load
I (222) boot: Loaded app from partition at offset 0x10000
I (222) boot: Disabling RNG early entropy source...
I (234) esp_psram: Found 8MB PSRAM device
I (234) esp_psram: Speed: 80MHz
I (234) cpu_start: Multicore app
I (1153) esp_psram: SPI SRAM memory test OK
I (1162) cpu_start: Pro cpu start user code
I (1162) cpu_start: cpu freq: 240000000 Hz
I (1162) app_init: Application information:
I (1165) app_init: Project name:     display_audio_photo
I (1171) app_init: App version:      v0.15-112-g0630307-dirty
I (1177) app_init: Compile time:     Aug 21 2024 21:08:16
I (1183) app_init: ELF file SHA256:  5cd2b3773...
I (1189) app_init: ESP-IDF:          v5.3-dirty
I (1194) efuse_init: Min chip rev:     v0.0
I (1199) efuse_init: Max chip rev:     v0.99 
I (1204) efuse_init: Chip rev:         v0.2
I (1209) heap_init: Initializing. RAM available for dynamic allocation:
I (1216) heap_init: At 3FC9B0C8 len 0004E648 (313 KiB): RAM
I (1222) heap_init: At 3FCE9710 len 00005724 (21 KiB): RAM
I (1228) heap_init: At 3FCF0000 len 00008000 (32 KiB): DRAM
I (1235) heap_init: At 600FE100 len 00001EE8 (7 KiB): RTCRAM
I (1241) esp_psram: Adding pool of 8192K of PSRAM memory to heap allocator
I (1249) spi_flash: detected chip: generic
I (1253) spi_flash: flash io: qio
W (1257) i2c: This driver is an old driver, please migrate your application code to adapt `driver/i2c_master.h`
I (1268) sleep: Configure to isolate all GPIO pins in sleep state
I (1275) sleep: Enable automatic switching of GPIO sleep configuration
I (1282) main_task: Started on CPU0
I (1292) esp_psram: Reserving pool of 32K of internal memory for DMA/internal allocations
I (1292) main_task: Calling app_main()
I (1462) M5Stack: Partition size: total: 2293769, used: 1807706
I (1512) LVGL: Starting LVGL task
I (1512) gpio: GPIO[35]| InputEn: 0| OutputEn: 1| OpenDrain: 0| Pullup: 0| Pulldown: 0| Intr:0 
I (1512) ili9341: LCD panel create success, version: 1.2.0
I (1672) M5Stack: Setting LCD backlight: 50%
W (1852) i2s_common: GPIO 33 is not usable, maybe conflict with othe

Sketch

-

Other Steps to Reproduce

I have checked existing issues, README.md and ESP32 Forum

• I confirm I have checked existing issues, online documentation and Troubleshooting guide.

[diplfranzhoepfinger]

if i change the bsp_espbox_disp_example.c in a Way that i change from:

    /* Initialize audio */
    app_audio_init();

to 

    /* Initialize audio */
    //app_audio_init();

then the Example runs but no Sound.

[tore-espressif]

The GPIO reservation feature is a rather new one in ESP-IDF so this can be red herring. @L-KAYA Could you please check why this warning is displayed when GPIOs 33 and 34 are exclusively used by I2S in this example? Also the error message is very confusing...

@diplfranzhoepfinger Audio playback works OK on my board without any changes in the code.

The recording path is distorted, I'll have a look soon

[tore-espressif]

This warning i2s_common: GPIO 33 is not usable, maybe conflict with othe is mistakenly printed, it will be fixed soon.

I still need to check the recording path distortion

[davidthings]

I have been working with another ESP32-S3 board and have just been wrangling my own GPIO33 issue.

The problem is that with large PSRAM's (8MB), the S3 uses a wide data path. GPIO33 is one of the lines needed (D4 I think). So either you use PSRAM and avoid the alternate use, or you disable PSRAM and use the alternative function. One or the other.

[tore-espressif]

I have been working with another ESP32-S3 board and have just been wrangling my own GPIO33 issue.

The problem is that with large PSRAM's (8MB), the S3 uses a wide data path. GPIO33 is one of the lines needed (D4 I think). So either you use PSRAM and avoid the alternate use, or you disable PSRAM and use the alternative function. One or the other.

Correct, for Octal PSRAM, GPIO33 is reserved for D4 signal to PSRAM.

M5Stack CoreS3 has Quad PSRAM, so the pin is usable

[davidthings]

Excellent! Thanks.