Makerfab 7tft has no CS for sdcard operation

[mwalimu]

CircuitPython version

Adafruit CircuitPython 9.2.1 on 2024-11-20; MakerFabs-ESP32-S3-Parallel-TFT-With-Touch-7inch with ESP32S3
Board ID:makerfabs_tft7
UID:48CF6E86FA45

Code/REPL

>>> import board
>>> dir(board)
['__class__', '__name__', 'BUTTON', 'DISPLAY', 'GPIO19', 'GPIO20', 'I2C', 'RX', 'SCL', 'SDA', 'SDIO_CLK', 'SDIO_CMD', 'SDIO_D0', 'TFT_BACKLIGHT', 'TFT_PINS', 'TFT_TIMINGS', 'TFT_TIMINGS1024', 'TFT_TIMINGS800', 'TOUCH_RESET', 'TX', '__dict__', 'board_id']
>>>

Behavior

Can't use SD card since there is no chip select defined in "board".

Description

No response

Additional information

CS pin in schematic is IO10

[snkYmkrct]

@mwalimu
The interface used for the SD card on this board is SDIO, not SPI, so it doesn't need the CS pin.
It's not clear from the schematic, and the documentation wiki is broken, but there are comments in their sdcard code example.

The sdioio module should be used instead of sdcardio , see: https://docs.circuitpython.org/en/latest/shared-bindings/sdioio/index.html and https://learn.adafruit.com/adafruit-microsd-spi-sdio/using-sdioio

[RetiredWizard]

I loaded this on the Makerfab 7tft to mount an SD card:

import os, storage, board, sdioio
sd =sdioio.SDCard(clock=board.SDIO_CLK,command=board.SDIO_CMD,data=[board.SDIO_D0],frequency=25000000)
vfs = storage.VfsFat(sd)
storage.mount(vfs,'/sd')
os.listdir('/sd')

Edit: IO10 is used for the screen backlight so using it for an SD card CS would be a problem.