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+.. _stm32:
+
+Introduction to the STM32
+=========================
+
+.. FIXME [v0.0.13] Stub.
+
+Stub. To fill in:
+
+.. _stm32-general:
+
+General Information
+-------------------
+
+- Description of the history and present state of the STM32 line. ARM
+  Cortex-M series etc.
+
+- Introduction and pointers to ARM Cortex-M docs and other good books
+  on the subject.
+
+- Pointers to ST reference manuals. Note that the appropriate
+  reference manual for each board is always documented in that board's
+  hardware page.
+
+ST's Documentation
+------------------
+
+- Classes of documentation: product flyer, datasheet, reference
+  manual, programming manual, application note.
+
+.. _stm32-registers:
+
+Registers and Register Maps
+---------------------------
+
+- General purpose registers vs. peripheral registers.
+
+Perhaps you haven't read it in detail, but maybe you've at least
+thumbed through a few of the sections, trying to gain some
+understanding of what's going on.  If you've done that (and if you
+haven't, just take our word for it), then you know that underneath the
+covers, *everything* is controlled by messing with bits in the
+seemingly endless collections of registers specific to every
+peripheral.  The :ref:`USARTs <usart>` have data registers; (some of
+the) the :ref:`timers <timers>` have capture/compare registers, the
+:ref:`GPIOs <gpio>` have output data registers, etc.
+
+- Peripheral register maps; how they're duplicated for each peripheral
+
+- Portability concerns across series
+
+.. _stm32-libmaple-support:
+
+``libmaple``\ 's STM32 support
+------------------------------
+
+- Descriptions of libmaple's present support for the STM32 line
+  (i.e. currently performance-line only; update when the F2 branch is
+  ready to merge into master etc.).