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This adds docs for the `mimxrt` module and the `mimxrt.Flash` class, the
implementation for which was first added in
dfd4324eb1
The docs are simple, following the conventions used for similar classes in
the rp2 and stm32 ports.
Signed-off-by: Andrew Leech <andrew.leech@planetinnovation.com.au>
40 lines
1.2 KiB
ReStructuredText
40 lines
1.2 KiB
ReStructuredText
.. currentmodule:: mimxrt
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.. _mimxrt.Flash:
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class Flash -- access to built-in flash storage
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===============================================
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This class gives access to the SPI flash memory.
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In most cases, to store persistent data on the device, you'll want to use a
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higher-level abstraction, for example the filesystem via Python's standard file
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API, but this interface is useful to :ref:`customise the filesystem
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configuration <filesystem>` or implement a low-level storage system for your
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application.
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Constructors
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------------
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.. class:: Flash()
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Gets the singleton object for accessing the SPI flash memory.
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Methods
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-------
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.. method:: Flash.readblocks(block_num, buf)
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Flash.readblocks(block_num, buf, offset)
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.. method:: Flash.writeblocks(block_num, buf)
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Flash.writeblocks(block_num, buf, offset)
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.. method:: Flash.ioctl(cmd, arg)
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These methods implement the simple and extended
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:ref:`block protocol <block-device-interface>` defined by
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:class:`vfs.AbstractBlockDev`.
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The block size can be queried by calling ``ioctl(5, 0)``. Block numbers
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are relative to the start of the user flash storage area, not the physical
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start of flash memory.
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