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adafruit / Adafruit_CircuitPython_SD

SD card drivers for Adafruit CircuitPython
MIT License
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"no SD card" error #21

Closed JHDillenb closed 4 years ago

JHDillenb commented 5 years ago

Hello,

I have been attempting to use this repo in order to read an exterior micro sd card through a Jetson Nano. The wiring is set up to use SPI1. And I am following the example code:

""" import adafruit_sdcard import busio import digitalio import board import storage

Connect to the card and mount the filesystem.

spi = busio.SPI(board.SCK, board.MOSI, board.MISO) cs = digitalio.DigitalInOut(board.SD_CS) sdcard = adafruit_sdcard.SDCard(spi, cs) vfs = storage.VfsFat(sdcard) storage.mount(vfs, "/sd")

Use the filesystem as normal.

with open("/sd/test.txt", "w") as f: f.write("Hello world\n") """

However, I have ran into several issues that I would like to ask for help on.

  1. 'import storage' comes back as not a module. Is this a file living in the repo somewhere?
  2. adafruit_sdcard.SDCard(spi, cs) will return with an error on line 113 (self.__init_card())
  3. As well as another error on line 141, which is the line raising the "no SD card" error, but I am suspecting that it could be a syntax error? I haven't seen an if statement in python formatted that way before, but of course I am willing to be corrected on that and anything thing else you see.

JHDillenb

ladyada commented 5 years ago

this library isn't supported for linux dev boards. and the nano SPI isnt well tested, please use the Nano's native SD card or a USB SD reader!

JHDillenb commented 5 years ago

I see. That is unfortunate for me, but thank you very much for informing me on this, ladyada. You wouldn't happen to know of any other libraries that I may want to check on as a substitute for this one, would you?

ladyada commented 5 years ago

i dont know of any user-space SD card libraries. its...just not something that linux was designed to do.

dhalbert commented 4 years ago

Closing as not applicable.