micropython / micropython/micropython-lib

no SD card

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Python
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Description

I am trying to use this library on a rpi pico:

cs = machine.Pin(22, machine.Pin.OUT)
spi = machine.SPI(0,
                  baudrate=1000000,
                  polarity=0,
                  phase=0,
                  bits=8,
                  firstbit=machine.SPI.MSB,
                  sck=machine.Pin(18),
                  mosi=machine.Pin(19),
                  miso=machine.Pin(16))
sd = sdcard.SDCard(spi, cs)

# Mount filesystem
vfs = uos.VfsFat(sd)
os.mount(vfs, "/sd")

but every time I try to run my script in micropython I get eh error of:

"Traceback (most recent call last):
  File "<stdin>", line 27, in <module>
  File "lib/sdcard.py", line 54, in __init__
  File "lib/sdcard.py", line 82, in init_card
OSError: no SD card"

Any ideas on how to fix this?

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First steps

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  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start with lib/sdcard.py at lines 54 and 82, then reproduce the provided MicroPython Raspberry Pi Pico setup and SPI pin configuration. Review the 29-comment thread for confirmed wiring or compatibility findings. Done means identifying whether the library or setup causes the “no SD card” error and documenting a verified resolution.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
embedded-iot
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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