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diff --git a/source/fsmc.rst b/source/fsmc.rst deleted file mode 100644 index c8f0125..0000000 --- a/source/fsmc.rst +++ /dev/null @@ -1,33 +0,0 @@ -.. _fsmc: - -FSMC -==== - -The Flexible Static Memory Controller (FSMC) is a peripheral which an -be configured to control a variety of external memory chips. - -Normally, any variables in your program will be allocated space in RAM -(notable exceptions are variables marked with ``const`` or -:ref:`__FLASH__ <arm-gcc-attribute-flash>`). Without the FSMC, this -space is limited to the amount that comes built-in to the chip's -*internal* SRAM. - -The addition of the FSMC peripheral allows addtional memory to be -used. For example, it is used on the Maple Native to interface with -the board's built-in external SRAM chip. However, this extra memory -comes at a cost: the FSMC uses a fairly large number of GPIOs. - -The FSMC peripheral is currently only available on the Maple Native. -On that board, we have broken out a wide variety of the FSMC lines, so -that experienced users can add additional external memory chips to -suit their own applications' purposes. - -.. TODO Find some tutorials on SRAM or write one on FSMC, specifically -.. ones that cover: address, data, chip-select etc. pins, memory bank -.. organization - -Recommended Reading -------------------- - -- Wikipedia article on `SRAM <http://en.wikipedia.org/wiki/Static_random-access_memory>`_ -- :ref:`ST RM0008 <maple-native-b-stdocs>` chapter on FSMC. |