ESP32 Forum

Guru Meditation Error: Core 0 panic'ed (Interrupt wdt timeout on CPU0)
Register dump:
PC : 0x40080e78 PS : 0x00060034 A0 : 0x800835eb A1 : 0x3ffaea40
A2 : 0x3ffae5e0 A3 : 0x3ffaeb74 A4 : 0x00060020 A5 : 0x3ffe3b30
A6 : 0x00000000 A7 : 0x00000000 A8 : 0x3ffaeb74 A9 : 0x3ffaeb74
A10 : 0x00000001 A11 : 0x00000001 A12 : 0x00060020 A13 : 0x3ffe3b10
A14 : 0x3ffb13ec A15 : 0x00000000 SAR : 0x00000000 EXCCAUSE: 0x00000005
EXCVADDR: 0x00000000 LBEG : 0x00000000 LEND : 0x00000000 LCOUNT : 0x00000000

Backtrace: 0x40080e78:0x3ffaea40 0x400835eb:0x3ffaea60 0x40084487:0x3ffaea80 0x40080ea7:0x3ffaeac0

Rebooting...
ets Jun 8 2016 00:22:57

rst:0xc (SW_CPU_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0x00
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:2
load:0x3fff0008,len:8
load:0x3fff0010,len:2488
load:0x40078000,len:7128
load:0x40080000,len:252
entry 0x40080034
[0;32mI (574) cpu_start: Pro cpu up.[0m
[0;32mI (574) cpu_start: Single core mode[0m
[0;32mI (576) heap_alloc_caps: Initializing. RAM available for dynamic allocation:[0m
[0;32mI (588) heap_alloc_caps: At 3FFAE2A0 len 00001D60 (7 KiB): DRAM[0m
[0;32mI (608) heap_alloc_caps: At 3FFB5040 len 0002AFC0 (171 KiB): DRAM[0m
[0;32mI (629) heap_alloc_caps: At 3FFE0440 len 00003BC0 (14 KiB): D/IRAM[0m
[0;32mI (650) heap_alloc_caps: At 3FFE4350 len 0001BCB0 (111 KiB): D/IRAM[0m
[0;32mI (671) heap_alloc_caps: At 400977E8 len 00008818 (34 KiB): IRAM[0m
[0;32mI (692) cpu_start: Pro cpu start user code[0m
[0;32mI (752) cpu_start: Starting scheduler on PRO CPU.[0m
ask for help!my ESP-WROOM-32 Constantly restart like this，what should i do?
After erasing the flash, re-flash the firmware, it is useless, or the code that appears above. Hope your help, thanks!

Hi yulihui404,

The log is too generic to guess what the issue might be.
It may either h/w of s/w issue depending on your h/w and s/w configuration.

To help with troubleshooting you need to provide some details:
1. What is your development platform (Arduino, ESP-IDF, PlatformIO, other) and at what release?
2. Do you experience this issue running standard example blink.c / blink.ino and using default settings?
3. If blink.c / blink.ino works correctly and this issue is with your custom code, then what is the code?
4. Do you use a bare ESP-WROOM-32 module or some development board with ESP-WROOM-32? Which board? What is the wiring if you are using a bare module?

Do the esp-idf examples run?
You can also find hints to which line is crashing your code by using "make monitor" or manually resolving the address using addr2line.

idk why but read the docs seems to be offline. This would be the link...
http://esp-idf.readthedocs.io/en/latest ... ht=monitor