Pyportal Sdcard access broken in 9.x and 10.x

[aalhard]

CircuitPython version and board name

Adafruit CircuitPython 10.0.0-beta.3 on 2025-08-29; Adafruit PyPortal Titano with samd51j20

Code/REPL

>>> 
paste mode; Ctrl-C to cancel, Ctrl-D to finish
=== import board
=== import storage
=== import adafruit_sdcard
=== import os
=== import digitalio
=== import busio
=== spi = busio.SPI(board.SCK, MOSI=board.MOSI, MISO=board.MISO)
=== cs = digitalio.DigitalInOut(board.SD_CS)
=== sdcard = adafruit_sdcard.SDCard(spi, cs)
=== vfs = storage.VfsFat(sdcard)
=== storage.mount(vfs, "/sd")
=== os.listdir('/sd')

#OR

Adafruit CircuitPython 10.0.0-beta.3 on 2025-08-29; Adafruit PyPortal Titano with samd51j20
>>> 
>>> 
paste mode; Ctrl-C to cancel, Ctrl-D to finish
=== import board
=== import busio
=== import sdcardio
=== import storage
>>> spi = board.SPI()
>>> cs = board.SD_CS
>>> sdcard = sdcardio.SDCard(spi, cs)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
OSError: can't set 512 block size
>>>

Behavior

Traceback (most recent call last):
File "", line 9, in
File "adafruit_sdcard.py", line 112, in init
File "adafruit_sdcard.py", line 165, in _init_card
OSError: can't set 512 block size

Description

No response

Additional information

No response

[aalhard]

PNY sdcards were the issue, put in a sandisk and it worked

[dhalbert]

Oh, that is odd, thanks. Could you give a product link to the card that did not work?

Did you try reformatting the card?

[dhalbert]

Note also that this board supports the builtin module: sdcardio: https://docs.circuitpython.org/en/latest/shared-bindings/sdcardio/, which is very similar but not quite the same as adafruit_sdcard, and is meant to replace it for most uses.

[dhalbert]

issue now in #10663