ESP32_C3： timer_group: timer_init(271): HW TIMER NUM ERROR

[iBoundary]

from machine import*
tim = Timer(-1)
tim.init(period=1000,callback = lambda t:print('rtos'))
E (6078630) timer_group: timer_init(271): HW TIMER NUM ERROR
Traceback (most recent call last):
File "", line 1, in
OSError: (-258, 'ESP_ERR_INVALID_ARG')

I found out that virtual timer is not available in ESP32_C3 chip.

[peterhinch]

Is there a plan to fix this? The problem seems to have got worse in that it crashes rather than throws:

from machine import Timer
import time

tim = Timer(-1)
for _ in range(10):
    print("Trigger")  # Gets here
    tim.init(period=500, mode=Timer.ONE_SHOT, callback=lambda _: print("Timer"))  # Fails here
    time.sleep(1)

Fails with the dreaded "Guru Meditation Error: Core 0 panic'ed (Store access fault). Exception was unhandled.".

MicroPython v1.22.0 on 2023-12-27; LOLIN_C3_MINI with ESP32-C3FH4

See peterhinch/micropython_ir#35 (comment)