machine.lightsleep(n) always return right away on pico_w (1.25.0) #17185
Replies: 5 comments 5 replies
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repro: boot a blank pico_w board with 1.25.0 |
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On 1.23.0 the USB is broken after a lightsleep so the proof that lightsleep(n) worked is best observed by toggling a pin on and off using lightsleep for the delay between toggles. |
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If you can provide a complete code that reproduces the problem, then filing an issue at https://github.com/micropython/micropython/issues might help to bring attention to the problem. If you can further narrow down which version it started in, that would also help. |
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Test script: # light_sleep_test.py
from machine import lightsleep
from time import sleep_ms, ticks_ms, ticks_diff
def test(n):
for i in range(n):
t0 = ticks_ms()
sleep_ms(50)
lightsleep(5000)
sleep_ms(50)
print(i, ticks_diff(ticks_ms(), t0))
test(10)Yes, I got strange results for MicroPython v1.26.0-preview.31.g076e07197 on PICO. >>> import light_sleep_test
0 141
1 127
2 127
3 127
4 129
5 127
6 129
7 127
8 129
9 127
>>> But for MicroPython v1.25.0-preview.73.g406bccc75 on PICO, I got expected values >>> import light_sleep_test
0 5101
1 5101
2 5101
3 5101
4 5101
5 5101
6 5101
7 5100
8 5101
9 5100 |
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on RPI_PICO_W-20250415-v1.25.0 I get the same as 1.26 |
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I did my previous test on a PICO with network enabled as I wanted to test PPP. I can now confirm that lightsleep is broken on firmware with network support. MP without network: Compare to MP with network |
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I suppose that the pico-w port imports network by default. That would account for my observation. If you don't mind me using your testcase for a repro, I will submit a bug report. Thanks again for helping with this bug. |
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Feel free to use the testcase for whatever you want. |
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negative. it works on the REPL of a PicoW |
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Oh, i had the wrong firmware, without network module. Sorry! |
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It does work on pico boards but not on pico_w. Note that it used to work fine on 1.23.0
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