EPERM error persists

[NJAldwin]

Hi folks,

I'm trying to get some of the examples to work on a brand new Galactic. I flashed the latest firmware (1.24.3) and uploaded a main.py which imports clock -- and I get the same EPERM error from #5 . Because that thread says it was fixed in 1.24.2, and I feared maybe there was a regression, I reverted to firmware 1.24.2, but I'm seeing the same error. Is there something else that could cause this?

I read somewhere that the EPERM could happen due to low current. Though in the clock example no LEDs are on until after the network connection is established, I did try powering it via a more powerful USB source than the computer (though of course could not see the console output in this case). No dice.

Is there something I'm missing here? Any other troubleshooting I can do? I also have a Cosmic that I haven't set up yet, and now I'm afraid that neither of these will function properly.

fwiw:

Traceback (most recent call last):
  File "clock.py", line 143, in sync_time
OSError: [Errno 1] EPERM
Traceback (most recent call last):
  File "<stdin>", line 7, in <module>
  File "<string>", line 1, in <module>
  File "clock.py", line 242, in <module>
  File "clock.py", line 150, in sync_time

I changed the clock.py example to loop on connection just in case:

    print("Trying to connect to:", WIFI_SSID)
    failed = True
    while failed:
        print("Trying to connect...")
        try:
            wlan.connect(WIFI_SSID, WIFI_PASSWORD)
            failed = False
        except Exception as e:
            print("Error connecting to WiFi:", e)
            import sys
            sys.print_exception(e)
            failed = True
        time.sleep(5)

but I am seeing the same error constantly.

I am 100% sure I am using the correct SSID and password, as this is the network every single other IoT device I have (including several Pico Ws, and including a Pimoroni Presto) is using. This leads me to suspect it's something with the Unicorn.

[NJAldwin]

I suppose it might be useful to include other log lines:

>>> import main
WLAN Before Activation: <CYW43 STA down 0.0.0.0>
[CYW43] core not up
[CYW43] core not up
[CYW43] HT not ready
WLAN After Activation: <CYW43 STA down 0.0.0.0>
WLAN Active: True
started in the disconnected state
Trying to connect to: [REDACTED]
Trying to connect...
Error connecting to WiFi: [Errno 1] EPERM
Traceback (most recent call last):
  File "clock.py", line 143, in sync_time
OSError: [Errno 1] EPERM
Trying to connect...
Error connecting to WiFi: [Errno 1] EPERM
Traceback (most recent call last):
  File "clock.py", line 143, in sync_time
OSError: [Errno 1] EPERM
Trying to connect...
Error connecting to WiFi: [Errno 1] EPERM
Traceback (most recent call last):
  File "clock.py", line 143, in sync_time
OSError: [Errno 1] EPERM

[NJAldwin]

Hey @Gadgetoid just a quick ping on this one -- would love to be able to try out the Unicorns!

[Gadgetoid]

Ah I'm overdue another release here, I think, I chased a few wireless bugs upstream and they have - IIRC - been fixed in MicroPython 1.25.

[Gadgetoid]

You may have luck with a CI build from #20

[NJAldwin]

Awesome! With that build I'm only seeing EPERM occasionally (and I seem to be able to mostly avoid it by setting the brightness to super low before attempting to connect, on the presumption that it's affected by power usage).