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49 lines
1.4 KiB
ReStructuredText
49 lines
1.4 KiB
ReStructuredText
.. _pyb.SD:
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class SD -- secure digital memory card
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======================================
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The SD card class allows to configure and enable the memory card
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module of the WiPy and automatically mount it as ``/sd`` as part
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of the file system. There are several pin combinations that can be
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used to wire the SD card socket to the WiPy and the pins used can
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be specified in the constructor. Please check the `pinout and alternate functions
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table. <https://raw.githubusercontent.com/wipy/wipy/master/docs/PinOUT.png>`_ for
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more info regarding the pins which can be remapped to be used with a SD card.
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Example usage::
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# data, clk and cmd pins must be passed along with
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# their respective alternate functions
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sd = pyb.SD(('GP15', 8, 'GP10', 6, 'GP11', 6))
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sd.mount()
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# do normal file operations
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Constructors
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------------
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.. class:: pyb.SD([pins_tuple])
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Create a SD card object. In order to initalize the card, give it a 6-tuple
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``(dat_pin, dat_af, clk_pin, clk_af, cmd_pin, cmd_af)`` with the data, clock
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and cmd pins together their respective alternate functions.
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Methods
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-------
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.. method:: sd.init([pins_tuple])
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Enable the SD card.
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.. method:: sd.deinit()
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Disable the SD card (also unmounts it to avoid file system crashes).
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.. method:: sd.mount()
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Mount the SD card on the file system. Accesible as ``/sd``.
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.. method:: sd.unmount()
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Unmount the SD card from the file system.
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