micropython: add micropython component

components/language/micropython/docs/library/rp2.Flash.rst

@@ -0,0 +1,36 @@
+.. currentmodule:: rp2
+.. _rp2.Flash:
+
+class Flash -- access to built-in flash storage
+===============================================
+
+This class gives access to the SPI flash memory.
+
+In most cases, to store persistent data on the device, you'll want to use a
+higher-level abstraction, for example the filesystem via Python's standard file
+API, but this interface is useful to :ref:`customise the filesystem
+configuration <filesystem>` or implement a low-level storage system for your
+application.
+
+
+Constructors
+------------
+
+.. class:: Flash()
+
+   Gets the singleton object for accessing the SPI flash memory.
+
+
+Methods
+-------
+
+.. method:: Flash.readblocks(block_num, buf)
+            Flash.readblocks(block_num, buf, offset)
+.. method:: Flash.writeblocks(block_num, buf)
+            Flash.writeblocks(block_num, buf, offset)
+.. method:: Flash.ioctl(cmd, arg)
+
+    These methods implement the simple and extended
+    :ref:`block protocol <block-device-interface>` defined by
+    :class:`os.AbstractBlockDev`.
+