Guru Meditation Error: Core 0 panic'ed (Unhandled debug exception) because of watchdog not feed in time

[matamune]

Hi,
With the new firmware update, I get an new error that I did not have previously:

>>> execfile("clock.py")
Task watchdog got triggered. The following tasks did not feed the watchdog in time:
Tasks currently running:
CPU 0: MicroPy
Aborting.
Guru Meditation Error: Core   0 panic'ed (Unhandled debug exception)
Register dump:
PC      :  400f2405  PS      :  00060036  A0      :  800ea6bd  A1      :  3ffd51f0  
A2      :  0000000a  A3      :  0000000a  A4      :  00000004  A5      :  00000000  
A6      :  00000000  A7      :  fffffff8  A8      :  00000000  A9      :  3ffd5160  
A10     :  00000000  A11     :  3ffdd7b3  A12     :  3ffd512f  A13     :  00000030  
A14     :  00000000  A15     :  00000002  SAR     :  00000011  EXCCAUSE:  00000001  
EXCVADDR:  00000000  LBEG    :  4000c46c  LEND    :  4000c477  LCOUNT  :  00000000  
CPU halted.

Here is my code:

import time
from machine import Pin

SEGMENT_ON=0
SEGMENT_OFF=1

DIGIT_ON=1
DIGIT_OFF=0

HOURS=3
MINUTES=4
SECONDS=5
# 
#   _b_
# a|   | 
#  |_h_|c
#  |   |
# g|___|e .d
#    f
# 
a=Pin('P10', mode=Pin.OUT)          #GP17
b=Pin('P11', mode=Pin.OUT)          #GP22           
c=Pin('P21', mode=Pin.OUT) #7       #GP8
d=Pin('P3', mode=Pin.OUT)           #GP24
e=Pin('P4', mode=Pin.OUT)           #GP11
f=Pin('P2', mode=Pin.OUT)           #GP23
g=Pin('P19', mode=Pin.OUT)#1         #GP7
h=Pin('P23', mode=Pin.OUT)#5        #GP10
    
digit1=Pin('P12', mode=Pin.OUT)     #GP20
digit2=Pin('P9', mode=Pin.OUT)      #GP16
digit3=Pin('P8', mode=Pin.OUT)      #GP15
digit4=Pin('P22', mode=Pin.OUT) #6  #GP9

digits= [digit1,digit2,digit3,digit4]

digitSegments={
    1 : (c, e),
    2 : (b, c, h, g, f),
    3 : (b, c, h, e, f),
    4 : (a, h, c, e),
    5 : (b, a, h, e, f),
    6 : (b, a, h, g, f, e),
    7 : (b, c, e),
    8 : (a, b, c, e, f, g, h),
    9 : (a, b, c, e, f, h),
    0 : (a, b, c, e, f, g)
}

def displayDigitSegment(digitSegmentsToDisplay):
    global digitSegments 
    global SEGMENT_ON

    #Switch on the segments of the digit
    for digit in digitSegments.get(digitSegmentsToDisplay):
        digit.value(SEGMENT_ON)
        
    time.sleep_us(1000)

    for disableOldSegment in digitSegments.get(8):
        disableOldSegment.value(SEGMENT_OFF)  

    return

for disableOldSegment in digitSegments.get(8):
        disableOldSegment.value(SEGMENT_OFF)

digit1.value(DIGIT_OFF)
digit2.value(DIGIT_OFF)
digit3.value(DIGIT_OFF)
digit4.value(DIGIT_OFF)

while True:
    clock=time.localtime(time.time())

    sec=clock[SECONDS]
    minu=clock[MINUTES]
    for digitNum in range (0, 4):
        currDigit=digits[digitNum]
        currDigit.value(DIGIT_ON)
        if digitNum == 0:
            displayDigitSegment(minu//10)
        elif digitNum == 1:
            displayDigitSegment(minu%10)
        elif digitNum == 2:
            displayDigitSegment(sec//10)  
        else:
            displayDigitSegment(sec%10)
            
        currDigit.value(DIGIT_OFF)
        

It is a 4 digit 7 segment display that I use to display the current minutes and seconds.
Later, I want to display the current temperature of my room.

Has anyone encountered this error before? And if yes, have you managed to solve it and how?

Thank you :)

[matamune]

@Frida said in Guru Meditation Error: Core 0 panic'ed (Unhandled debug exception) because of watchdog not feed in time:

time.sleep_ms(1)
Hi,
Thank you, it worked :)

[Frida]

Try a time.sleep_ms(1) in your loop

[Frida]

With the thread example:

import _thread
import time

def th_func(delay, id):
    while True:
        time.sleep(delay)
        print('Running thread %d' % id)

for i in range(2):
    _thread.start_new_thread(th_func, (i + 1, i))

it runs fine, but I cant quit with ctrl-c, and with ctrl-d it

PYB: soft reboot
�MicroPython d78a5a3 on 2016-11-05; WiPy with ESP32
Type "help()" for more information.
>>> Guru Meditation Error of type LoadProhibited occurred on core   0. Exception was unhandled.
Register dump:
PC      :  40085076  PS      :  00060433  A0      :  8008350d  A1      :  3ffdd3f0  
A2      :  3ffb00dc  A3      :  3ffdd4f4  A4      :  8008382f  A5      :  3ffdc970  
A6      :  00000003  A7      :  00060e23  A8      :  00000000  A9      :  3ffb1248  
A10     :  00000000  A11     :  00006711  A12     :  00060423  A13     :  b33f0000  
A14     :  b33fffff  A15     :  00060e23  SAR     :  0000001a  EXCCAUSE:  0000001c  
EXCVADDR:  00000000  LBEG    :  00000000  LEND    :  00000000  LCOUNT  :  00000000  
CPU halted.

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