ESP_RST_INT_WDT on deep sleep start

[timnicolas]

I have an issue with deepsleep start.

Since one month, on some random esp32 I can’t start deepsleep mode. I have 20 boards, the bug appears on 12 of them.

When I run this code, the esp32 auto restart imediatly when calling esp_deep_sleep_start() with reason 5 (ESP_RST_INT_WDT: Reset (software or hardware) due to interrupt watchdog )

The bug first appear when I did some updates but I don’t remember witch one.

Specifications

• ESP32: ESP32-S3-WROOM-2-N32R8V (On a custom board used everyday since 1 year)
• platformio version: PlatformIO Core, version 6.1.9 (tested on other versions like 6.1.4)
• platform-espressif32 version: 6.3.2 (tested on ther release like 5.4.0, 6.2.0, etc.)
• code uploaded with this programmer
• code uploaded from macbook pro M1 and windows

My code :

#include <Arduino.h>

void setup() {
    Serial.begin(115200);
    esp_reset_reason_t reason = esp_reset_reason();
    log_printf("Wakeup reason: %d\n", reason);

    esp_sleep_enable_ext0_wakeup(GPIO_NUM_3, 1);
    delay(100);
    esp_deep_sleep_start();
}

void loop() {}

platformio.ini

[env]
platform = espressif32 @ 6.3.2
framework = arduino
monitor_speed = 115200
monitor_filters = direct
build_flags = -DCORE_DEBUG_LEVEL=5

[env:maxi]
board = esp32-phyling

custom board used

{
    "build": {
      "arduino":{
        "ldscript": "esp32s3_out.ld",
        "partitions": "default_16MB.csv",
        "memory_type": "opi_opi"
      },
      "core": "esp32",
      "extra_flags": [
        "-DARDUINO_RUNNING_CORE=1",
        "-DARDUINO_EVENT_RUNNING_CORE=0",
        "-DARDUINO_USB_MODE=1",
        "-DARDUINO_ESP32S3_DEV",
        "-DBOARD_HAS_PSRAM",
        "-DESP32S3_DEV",
        "-mfix-esp32-psram-cache-issue",
        "-fexceptions"
      ],
      "f_cpu": "240000000L",
      "f_flash": "80000000L",
      "flash_mode": "dout",
      "boot": "opi",
      "boot_freq": "80m",
      "hwids": [
        [
          "0X303A",
          "0x1001"
        ]
      ],
      "mcu": "esp32s3",
      "variant": "esp32s3",
      "psram_type": "opi"
    },
    "connectivity": [
      "wifi",
      "bluetooth"
    ],
    "debug": {
      "default_tool": "esp-builtin",
      "onboard_tools": [
        "esp-builtin"
      ],
      "openocd_target": "esp32s3.cfg"
    },
    "frameworks": [
      "arduino",
      "espidf"
    ],
    "name": "Espressif ESP32-S3 Dev Module",
    "upload": {
      "flash_size": "16MB",
      "maximum_ram_size": 327680,
      "maximum_size": 8388608,
      "require_upload_port": true,
      "speed": 921600
    },
    "url": "https://www.adafruit.com/product/5290",
    "vendor": "Espressif"
  }

logs

ESP-ROM:esp32s3-20210327
Build:Mar 27 2021
rst:0x8 (TG1WDT_SYS_RST),boot:0x8 (SPI_FAST_FLASH_BOOT)
Saved PC:0x40379458
SPIWP:0xee
Octal Flash Mode Enabled
For OPI Flash, Use Default Flash Boot Mode
mode:SLOW_RD, clock div:1
load:0x3fce3808,len:0x3ac
load:0x403c9700,len:0x9b4
load:0x403cc700,len:0x28fc
entry 0x403c98bc
[   121][I][esp32-hal-psram.c:96] psramInit(): PSRAM enabled
Wakeup reason: 5
ESP-ROM:esp32s3-20210327    #  <-- auto restart (repeat forever)
Build:Mar 27 2021
rst:0x8 (TG1WDT_SYS_RST),boot:0x8 (SPI_FAST_FLASH_BOOT)
Saved PC:0x40379458
SPIWP:0xee
Octal Flash Mode Enabled
For OPI Flash, Use Default Flash Boot Mode
mode:SLOW_RD, clock div:1
load:0x3fce3808,len:0x3ac
load:0x403c9700,len:0x9b4
load:0x403cc700,len:0x28fc
entry 0x403c98bc
[   121][I][esp32-hal-psram.c:96] psramInit(): PSRAM enabled
Wakeup reason: 5

[valeros]

Hi @tnicolas42, have you tried the same code in Arduino IDE?

[timnicolas]

Yes I tried and I don't have any error

[Jason2866]

Do you have an other S3 board without OPI flash/PSRAM? Or if you have not, can you try without PSRAM?

[Jason2866]

Mhh, this "maximum_size": 8388608, is wrong in your boards json. Can end in endless reboot. The correct entry for 16MB flash is "maximum_size": 16777216, and the entry "-mfix-esp32-psram-cache-issue", is only for some esp32 boards with PSRAM. It is not needed for ANY S3 MCU. EDIT: Module N32R8V should have 32MB flash. So your boards json with specifying 16MB is not correct at all. But maybe needed since esptool.py can't write to flash of the S3 > 16MB. https://github.com/espressif/esptool/issues/883

[timnicolas]

I made a mistake actually, the error doesn't occur when I upload code from the Arduino IDE... And I tested without PSRAM, still the same bug. And thank you, @Jason2866, I made the changes!

[timnicolas]

SOLVED In platformio.ini, I update the package framework-arduinoespressif32

platform_packages =
    framework-arduinoespressif32 @ 3.20011.230801
    tool-esptoolpy @ 1.40501.0
    tool-mkfatfs @ 2.0.1