Metro RP2350 stuck in safe mode after resets, reinstalling CP and nuke flash #10207
Description
CircuitPython version and board name
Adafruit CircuitPython 9.2.6 on 2025-03-23; Adafruit Metro RP2350 with rp2350bCode/REPL
import audiobusio
import audiocore
import board
import adafruit_tlv320
i2c = board.I2C()
dac = adafruit_tlv320.TLV320DAC3100(i2c)
dac.configure_clocks(sample_rate=44100, bit_depth=16)
dac.speaker_output = True
dac.speaker_volume = -10 # dB
audio = audiobusio.I2SOut(board.D9, board.D10, board.D11)
with open("StreetChicken.wav", "rb") as wave_file:
wav = audiocore.WaveFile(wave_file)
print("Playing wav file!")
audio.play(wav)
while audio.playing:
pass
print("Done!")Behavior
i was trying to double check the street chicken wav playback example with a metro rp2350 and the tlv320dac3100 breakout. initially, it wasn't recognizing the breakout over i2c which was strange because i had just used it in arduino and had not touched the wiring. after a few power cycles and reloads, i hit this safe mode message:
Auto-reload is off.
Running in safe mode! Not running saved code.
You are in safe mode because:
CircuitPython core code crashed hard. Whoops!
Heap allocation when VM not running.
Please file an issue with your program at github.com/adafruit/circuitpython/issues.
Press reset to exit safe mode.
Press any key to enter the REPL. Use CTRL-D to reload.
resetting/power cycling did not fix. i went into bootloader mode and reloaded circuitpython. after booting, it was still in safe mode with the same message. i ran the nuke flash uf2 and then reloaded the circuitpython uf2 and it is still in safe mode.
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