ardupilot/Tools/ArduPPM/ATMega32U2/LUFA/ManPages/WritingBoardDrivers.txt

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/** \file
*
* This file contains special DoxyGen information for the generation of the main page and other special
* documentation pages. It is not a project source file.
*/
/** \page Page_WritingBoardDrivers Writing LUFA Board Drivers
*
* LUFA ships with several basic pre-made board drivers, to control hardware present on the supported board
* hardware - such as Dataflash ICs, LEDs, Joysticks, or other hardware peripherals. When compiling an application
* which makes use of one or more board drivers located in LUFA/Drivers/Board, you must also indicate what board
* hardware you are using in your project makefile. This is done by defining the BOARD macro using the -D switch
* passed to the compiler, with a constant of BOARD_{Name}. For example <b>-DBOARD=BOARD_USBKEY</b> instructs the
* compiler to use the USBKEY board hardware drivers.
*
* If your application does not use *any* board level drivers, you can omit the definition of the BOARD macro.
* However, some users may wish to write their own custom board hardware drivers which are to remain compatible
* with the LUFA hardware API. To do this, the BOARD macro should be defined to the value BOARD_USER. This indicates
* that the board level drivers should be located in a folder named "Board" located inside the application's folder.
*
* When used, the driver stub files located in the DriverStubs folder should be copied to the user Board directory,
* and fleshed out to include the values and code needed to control the custom board hardware. Once done, the existing
* LUFA board level APIs (accessed in the regular LUFA/Drivers/Board/ folder) will redirect to the user board drivers,
* maintaining code compatibility and allowing for a different board to be selected through the project makefile with
* no code changes.
*/