← index #14079Issue #14092
Related · high · value 2.035
QUERY · ISSUE

Rp2: Incorrect CPU freq after lightsleep()

openby mungewellopened 2024-03-13updated 2025-03-03
bugport-rp2

Checks

  • I agree to follow the MicroPython Code of Conduct to ensure a safe and respectful space for everyone.

  • I've searched for existing issues matching this bug, and didn't find any.

Port, board and/or hardware

rp2 - official Pico (non-wifi)

MicroPython version

MicroPython v1.22.2 on 2024-02-22; Raspberry Pi Pico with RP2040

Reproduction

Run a short script to enter/exit lightsleep(), checking CPU freq afterwards show that it has changed.

MPY: soft reboot
CPU Freq 100000000
entering lightsleep
wake from sleep
CPU Freq 125000000

blink.py.txt

Expected behaviour

Expect it not to change...

Observed behaviour

CPU freq reports differently to that previously set.

Additional Information

No, I've provided everything above.

CANDIDATE · ISSUE

RP2 - lightsleep() fails/does not exit when started from inside a thread - solution

closedby mungewellopened 2024-03-14updated 2024-04-22
bug

Checks

  • I agree to follow the MicroPython Code of Conduct to ensure a safe and respectful space for everyone.

  • I've searched for existing issues matching this bug, and didn't find any.

Port, board and/or hardware

rp2 - official Pico (non-wifi)

MicroPython version

MicroPython v1.22.2 on 2024-02-22; Raspberry Pi Pico with RP2040

Reproduction

Run the attached script...

blink_thread.py.txt

Expected behaviour

When called within (only) a function, lightsleep() correct exits and the rest of the function are run.

MPY: soft reboot
Blink in thread test
CPU Freq 100000000
entering lightsleep
wake from sleep
CPU Freq 125000000

Observed behaviour

The lightsleep() call does not exit....

MPY: soft reboot
Blink in thread test
CPU Freq 100000000
entering lightsleep

...

Additional Information

No, I've provided everything above.

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