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Merge pull request #4163 from jepler/spi-sharing-note

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sdcardio:  add a note about sharing the SPI bus with SD cards and other devices
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Scott Shawcroft 2021-02-09 11:42:22 -08:00 committed by GitHub
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shared-bindings/sdcardio/SDCard.c
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@ -55,6 +55,12 @@
//| Data transfers use the specified baurate (rounded down to one that is supported by
//| the microcontroller)
//|
//| .. important::
//| If the same SPI bus is shared with other peripherals, it is important that
//| the SD card be initialized before accessing any other peripheral on the bus.
//| Failure to do so can prevent the SD card from being recognized until it is
//| powered off or re-inserted.
//|
//| Example usage:
//|
//| .. code-block:: python