Hi there
I have an RPi Compute Module 4 (with eMMc) on the associated IO board and would like to connect another SD card there. I bought the MicroSD SPI or SDIO Card Breakout Board from Adafruit to connect it via SDIO. For this purpose, I have configured pins 22-27 with an overlay for access via SDIO. Now I'm looking for the right library to access the SD card with the Raspberry. Can anyone help me there?
Thanks a lot!
Julien
Raspberry CM4 to SD-Card via SDIO
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- mikeysklar
- Posts: 13936
- Joined: Mon Aug 01, 2016 8:10 pm
Re: Raspberry CM4 to SD-Card via SDIO
Julien,
I believe you would use the sdioio library.
https://circuitpython.readthedocs.io/en ... index.html
I believe you would use the sdioio library.
https://circuitpython.readthedocs.io/en ... index.html
Code: Select all
Example usage:
import os
import board
import sdioio
import storage
sd = sdioio.SDCard(
clock=board.SDIO_CLOCK,
command=board.SDIO_COMMAND,
data=board.SDIO_DATA,
frequency=25000000)
vfs = storage.VfsFat(sd)
storage.mount(vfs, '/sd')
os.listdir('/sd')
Forum rules
Talk about Adafruit Raspberry Pi® accessories! Please do not ask for Linux support, this is for Adafruit products only! For Raspberry Pi help please visit: http://www.raspberrypi.org/phpBB3/
Talk about Adafruit Raspberry Pi® accessories! Please do not ask for Linux support, this is for Adafruit products only! For Raspberry Pi help please visit: http://www.raspberrypi.org/phpBB3/