ESP32C2 WDT cannot be used
Port, board and/or hardware
ESP32 /ESP32_GENERIC_C2
MicroPython version
MicroPython v1.27.0 on 2025-12-09; ESP32C2 module with ESP32C2
Reproduction
from machine import WDT
wdt = WDT(timeout=2000) # enable it with a timeout of 2s
wdt.feed()
Expected behaviour
No response
Observed behaviour
Rebooting...
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MicroPython v1.27.0 on 2025-12-09; ESP32C2 module with ESP32C2
Type "help()" for more information.
A fatal error occurred. The crash dump printed below may be used to help
determine what caused it. If you are not already running the most recent
version of MicroPython, consider upgrading. New versions often fix bugs.
To learn more about how to debug and/or report this crash visit the wiki
page at: https://github.com/micropython/micropython/wiki/ESP32-debugging
MPY version : v1.27.0 on 2025-12-09
IDF version : v5.5.1
Machine : ESP32C2 module with ESP32C2
Guru Meditation Error: Core 0 panic'ed (Interrupt wdt timeout on CPU0).
Core 0 register dump:
MEPC : 0x4038801c RA : 0x403844a0 SP : 0x3fcbae50 GP : 0x3fcac028
TP : 0x3fcbaf50 T0 : 0x40081260 T1 : 0x0000000f T2 : 0xffffffff
S0/FP : 0x00000000 S1 : 0x00000001 A0 : 0x3fcb3928 A1 : 0x00000001
A2 : 0x00000000 A3 : 0x00000004 A4 : 0x00000001 A5 : 0x3fcb3000
A6 : 0x00000004 A7 : 0xfff00000 S2 : 0x00000004 S3 : 0x00000001
S4 : 0x3c136000 S5 : 0x00000002 S6 : 0x00000005 S7 : 0x3fcb4000
S8 : 0x3fcaf498 S9 : 0x00000001 S10 : 0x00000000 S11 : 0x00000000
T3 : 0xffffffff T4 : 0xffffffff T5 : 0xffffffff T6 : 0xffffffff
MSTATUS : 0x00001881 MTVEC : 0x40380001 MCAUSE : 0x00000018 MTVAL : 0x70e7aa23
MHARTID : 0x00000000
Stack memory:
3fcbae50: 0x00000004 0x00000003 0x3fcaf000 0x42127076 0x00000004 0x00000003 0x3fcaf000 0x42029b86
3fcbae70: 0x00000004 0x00000003 0xffffffff 0x42048586 0x00000000 0x00000003 0x3c130000 0x42048f34
3fcbae90: 0x00000020 0x3fcc3f64 0x00000001 0x3fcaf000 0x00000020 0x00000000 0x3fcbb830 0x3fcaf400
3fcbaeb0: 0x00000000 0x00000000 0x3fcaf498 0x3fcb4000 0x42029000 0x3c132000 0x3fcaf000 0x3fcbaee0
3fcbaed0: 0x3fcc3f64 0x00003c00 0x3fcbaf64 0x420297d2 0x00000000 0x00000000 0x00000000 0x00000000
3fcbaef0: 0x00000000 0x00000000 0x00000000 0x3fcbaee0 0x00000000 0x00000000 0x00000000 0x00000000
3fcbaf10: 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000
3fcbaf30: 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0xa5a5a5a5 0xa5a5a5a5 0xa5a5a5a5
3fcbaf50: 0xa5a5a5a5 0xa5a5a5a5 0xa5a5a5a5 0xa5a5a5a5 0x00009000 0x55555559 0xaaaaaa56 0x6aaa5aaa
3fcbaf70: 0xaa966aaa 0x555aaaaa 0xaaa42555 0xa9aaaaa6 0x90aaaaaa 0x0a9a90a6 0x00000000 0x00000000
3fcbaf90: 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000
3fcbafb0: 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000
3fcbafd0: 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000
3fcbaff0: 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000
3fcbb010: 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000
3fcbb030: 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000
3fcbb050: 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000
3fcbb070: 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000
3fcbb090: 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000
3fcbb0b0: 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000
3fcbb0d0: 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000
3fcbb0f0: 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000
3fcbb110: 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000
3fcbb130: 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000
3fcbb150: 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000
3fcbb170: 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000
3fcbb190: 0x00000000 0x00000000 0x00000000 0x00040000 0x00000000 0x00000010 0x00000000 0x00000000
3fcbb1b0: 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000
3fcbb1d0: 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000
3fcbb1f0: 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000
3fcbb210: 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000
3fcbb230: 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000
ELF file SHA256: 348ea43d8
Additional Information
No, I've provided everything above.
Code of Conduct
Yes, I agree
ESP32C6 WDT reset when using network module
Port, board and/or hardware
esp32c6
MicroPython version
MicroPython v1.24.0 on 2024-10-25; ESP32C6 module with ESP32C6
Reproduction
Case 1:
import network
wlan = network.WLAN(network.STA_IF)
wlan.active(True)
wlan.connect('ssid', 'pw')
wlan.ipconfig('addr4')
Case 2:
import network
ap = network.WLAN(network.AP_IF)
ap.active(True)
ap.config(ssid='esp32')
Expected behaviour
Connect to my WIFI or generate an AP. Both cases fail
Observed behaviour
Case 1:
ESP-ROM:esp32c6-20220919
Build:Sep 19 2022
rst:0x8 (TG1_WDT_HPSYS),boot:0xc (SPI_FAST_FLASH_BOOT)
Saved PC:0x20000800
SPIWP:0xee
mode:DIO, clock div:2
load:0x40875720,len:0xed4
load:0x4086c410,len:0xc18
load:0x4086e610,len:0x2b44
entry 0x4086c410
W (24) boot.esp32c6: PRO CPU has been reset by WDT.
Case 2:
ESP-ROM:esp32c6-20220919
Build:Sep 19 2022
rst:0x8 (TG1_WDT_HPSYS),boot:0xc (SPI_FAST_FLASH_BOOT)
Saved PC:0x4080ea24
SPIWP:0xee
mode:DIO, clock div:2
load:0x40875720,len:0xed4
load:0x4086c410,len:0xc18
load:0x4086e610,len:0x2b44
entry 0x4086c410
W (24) boot.esp32c6: PRO CPU has been reset by WDT.
Case 2, but with other error:
A fatal error occurred. The crash dump printed below may be used to help
determine what caused it. If you are not already running the most recent
version of MicroPython, consider upgrading. New versions often fix bugs.
To learn more about how to debug and/or report this crash visit the wiki
page at: https://github.com/micropython/micropython/wiki/ESP32-debugging
MPY version : v1.24.0 on 2024-10-25
IDF version : v5.2.2
Machine : ESP32C6 module with ESP32C6
Guru Meditation Error: Core 0 panic'ed (Interrupt wdt timeout on CPU0).
Core 0 register dump:
MEPC : 0x4080ea28 RA : 0x40812b7a SP : 0x40826580 GP : 0x40818e34
TP : 0x407e6ea4 T0 : 0x40022494 T1 : 0x4080ebda T2 : 0x00000000
S0/FP : 0x40825e70 S1 : 0x40822000 A0 : 0x00000001 A1 : 0x00000001
A2 : 0x00000004 A3 : 0x00000001 A4 : 0x600c2000 A5 : 0x00000000
A6 : 0x00000000 A7 : 0x00000000 S2 : 0x40822000 S3 : 0x4081bc70
S4 : 0x00000001 S5 : 0x00000000 S6 : 0x00000000 S7 : 0x00000000
S8 : 0x00000000 S9 : 0x00000000 S10 : 0x00000000 S11 : 0x00000000
T3 : 0x00000000 T4 : 0x00000000 T5 : 0x00000000 T6 : 0x00000000
MSTATUS : 0x00001881 MTVEC : 0x40800001 MCAUSE : 0x00000018 MTVAL : 0x00000000
MHARTID : 0x00000000
Stack memory:
40826580: 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000
408265a0: 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0xa5a5a5a5 0xa5a5a5a5 0xa5a5a5a5
408265c0: 0xa5a5a5a5 0xa5a5a5a5 0xa5a5a5a5 0x00000158 0x40826500 0x00000000 0x4081bcc8 0x4081bcc8
408265e0: 0x408265d0 0x4081bcc0 0x00000019 0x00000000 0x00000000 0x408265d0 0x00000000 0x00000000
40826600: 0x40825fcc 0x454c4449 0x00000000 0x00000000 0x00000000 0x408265c0 0x00000000 0x00000000
40826620: 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x40823b90 0x40823bf8 0x40823c60
40826640: 0x00000000 0x00000000 0x00000001 0x00000000 0x00000000 0x00000000 0x42007030 0x00000000
40826660: 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000
40826680: 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000
408266a0: 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000
408266c0: 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000
408266e0: 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000
40826700: 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000
40826720: 0x00000000 0x00000200 0x0000000c 0x0e56000a 0x00000000 0x40826750 0x00000010 0x4081d888
40826740: 0x00000000 0x00000000 0x00000100 0x0000000c 0x0d580008 0x00000000 0x4082ae5c 0x00000054
40826760: 0x00000000 0x40826760 0x00000000 0x00000000 0x00000000 0x40826778 0xffffffff 0x40826778
40826780: 0x40826778 0x00000000 0x4082678c 0xffffffff 0x4082678c 0x4082678c 0x00000001 0x00000001
408267a0: 0x00000000 0xc000ffff 0x00000000 0xd54304b0 0x40826758 0x00000028 0x421b0850 0x4083db5c
408267c0: 0x4083e270 0x00000002 0x408269cc 0x408269cc 0x00000001 0x4082683c 0x4082683c 0x00000001
408267e0: 0x00000054 0x00000000 0x408267e4 0x00000000 0x00000000 0x00000000 0x408267fc 0xffffffff
40826800: 0x408267fc 0x408267fc 0x00000000 0x40826810 0xffffffff 0x40826810 0x40826810 0x00000001
40826820: 0x00000001 0x00000000 0x0000ffff 0x00000000 0xb86283b2 0x408267dc 0x0000001c 0x421b081c
40826840: 0x00000000 0x00000000 0x408268ec 0x408268ec 0x408230c4 0x40826834 0x0000002c 0x001c0000
40826860: 0x001c0000 0x00000000 0x00000000 0x00000000 0x00000012 0x00000000 0x00000000 0x00000000
40826880: 0x4082688c 0x4081d794 0x0000002c 0x00800000 0x00800000 0x00000000 0x00000000 0x00000000
408268a0: 0x00000012 0x00000000 0x00000000 0x00000000 0x00000000 0x40826880 0x0000001c 0x00000000
408268c0: 0x40826cbc 0x6373696d 0x00000000 0x00000000 0x00000000 0x40826801 0x0000000c 0x4083bca8
408268e0: 0x00000000 0x408268d4 0x00000034 0x4081ad44 0x00000001 0x00000002 0x00009000 0x00006000
40826900: 0x00001000 0x0073766e 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x40826924
40826920: 0x00000034 0x4081ad44 0x00000001 0x00000001 0x0000f000 0x00001000 0x00001000 0x5f796870
40826940: 0x74696e69 0x00000000 0x00000000 0x00000000 0x00000000 0x4082695c 0x00000034 0x4081ad44
40826960: 0x00000000 0x00000000 0x00010000 0x001f0000 0x00001000 0x74636166 0x0079726f 0x00000000
ELF file SHA256: efa4db093
Rebooting...
ESP-ROM:esp32c6-20220919
Build:Sep 19 2022
rst:0xc (SW_CPU),boot:0xc (SPI_FAST_FLASH_BOOT)
Saved PC:0x4001975a
SPIWP:0xee
mode:DIO, clock div:2
load:0x40875720,len:0xed4
load:0x4086c410,len:0xc18
load:0x4086e610,len:0x2b44
entry 0x4086c410
Additional Information
i already tried to set the wdt manually with
import machine
wdt = machine.WDT(timeout=1000000)
wdt.feed()
but still the same errors. What else can I try to do?
WLAN and Co is working perfectly in C/C++, and with circuitpy, but i want to use micropython.
Have a nice day!
Code of Conduct
Yes, I agree