path: root/LUFA/DoxygenPages/BuildSystem.txt

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 *
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 */

/** \page Page_BuildSystem The LUFA Build System
 *
 *  \section Sec_BuildSystemOverview Overview of the LUFA Build System
 *  The LUFA build system is an attempt at making a set of re-usable, modular build make files which
 *  can be referenced in a LUFA powered project, to minimise the amount of code required in an
 *  application makefile. The system is written in GNU Make, and each module is independant of
 *  one-another.
 *
 *  To use a LUFA build system module, simply add an include to your project makefile:
 *  \code
 *  include $(LUFA_PATH)/Build/lufa.core.in
 *  \endcode
 *
 *  And the associated build module targets will be added to your project's build makefile automatically.
 *  To call a build target, run <tt>make {TARGET_NAME}</tt> from the command line, substituting in
 *  the appropriate target name.
 *
 *  \see \ref Sec_AppConfigParams for a copy of the sample LUFA project makefile.
 *
 *  Each build module may have one or more mandatory parameters (GNU Make variables) which <i>must</i>
 *  be supplied in the project makefile for the module to work, and one or more optional parameters which
 *  may be defined and which will assume a sensible default if not.
 *
 *  \section SSec_BuildSystemModules Available Modules
 *
 *  The following modules are included in this LUFA release:
 *
 *  \li \subpage Page_BuildModule_ATPROGRAM - Device Programming
 *  \li \subpage Page_BuildModule_AVRDUDE - Device Programming
 *  \li \subpage Page_BuildModule_BUILD - Compiling/Assembling/Linking
 *  \li \subpage Page_BuildModule_CORE - Core Build System Functions
 *  \li \subpage Page_BuildModule_CPPCHECK - Static Code Analysis
 *  \li \subpage Page_BuildModule_DFU - Device Programming
 *  \li \subpage Page_BuildModule_DOXYGEN - Automated Source Code Documentation
 *  \li \subpage Page_BuildModule_SOURCES - LUFA Module Source Code Variables
 */
 
 /** \page Page_BuildModule_BUILD The BUILD build module
 *
 *  The BUILD LUFA build system module, providing targets for the compilation,
 *  assembling and linking of an application from source code into binary files
 *  suitable for programming into a target device.
 *
 *  To use this module in your application makefile, add the following code:
 *  \code
 *  include $(LUFA_PATH)/Build/lufa.build.in
 *  \endcode
 *
 *  \section SSec_BuildModule_BUILD_Requirements Requirements
 *  This module requires the the architecture appropriate binaries of the GCC compiler are  available in your
 *  system's <b>PATH</b> variable. The GCC compiler and associated toolchain is distributed in Atmel AVR Studio
 *  5.x and Atmel Studio 6.x installation directories, as well as in many third party distribution packages.
 *
 *  \section SSec_BuildModule_BUILD_Targets Targets
 *
 *  <table>
 *   <tr>
 *    <td><tt>size</tt></td>
 *    <td>Display size of the compiled application FLASH and SRAM segments.</td>
 *   </tr>
 *   <tr>
 *    <td><tt>symbol-sizes</tt></td>
 *    <td>Display a size-sorted list of symbols from the compiled application, in decimal bytes.</td>
 *   </tr>
 *   <tr>
 *    <td><tt>all</tt></td>
 *    <td>Build and link the application into ELF debug and HEX binary files.</td>
 *   </tr>
 *   <tr>
 *    <td><tt>elf</tt></td>
 *    <td>Build and link the application into an ELF debug file.</td>
 *   </tr>
 *   <tr>
 *    <td><tt>hex</tt></td>
 *    <td>Build and link the application and produce HEX and EEP binary files.</td>
 *   </tr>
 *   <tr>
 *    <td><tt>lss</tt></td>
 *    <td>Build and link the application and produce a LSS source code/assembly code mixed listing file.</td>
 *   </tr>
 *   <tr>
 *    <td><tt>clean</tt></td>
 *    <td>Remove all intermediatary files and binary output files.</td>
 *   </tr>
 *  </table>
 *
 *  \section SSec_BuildModule_BUILD_MandatoryParams Mandatory Parameters
 *
 *  <table>
 *   <tr>
 *    <td><tt>TARGET</tt></td>
 *    <td>Name of the application output file prefix (e.g. <tt>TestApplication</tt>).</td>
 *   </tr>
 *   <tr>
 *    <td><tt>ARCH</tt></td>
 *    <td>Architecture of the target processor (see \ref Page_DeviceSupport).</td>
 *   </tr>
 *   <tr>
 *    <td><tt>MCU</tt></td>
 *    <td>Name of the Atmel processor model (e.g. <tt>at90usb1287</tt>).</td>
 *   </tr>
 *   <tr>
 *    <td><tt>SRC</tt></td>
 *    <td>List of relative or absolute paths to the application C (.c), C++ (.cpp) and Assembly (.S) source files.</td>
 *   </tr>
 *   <tr>
 *    <td><tt>F_USB</tt></td>
 *    <td>Speed in Hz of the input clock frequency to the target's USB controller.</td>
 *   </tr>
 *   <tr>
 *    <td><tt>LUFA_PATH</tt></td>
 *    <td>Path to the LUFA library core, either relative or absolute (e.g. <tt>../LUFA-000000/LUFA/</tt>).</td>
 *   </tr>
 *  </table>
 *
 *  \section SSec_BuildModule_BUILD_OptionalParams Optional Parameters
 *
 *  <table>
 *   <tr>
 *    <td><tt>BOARD</tt></td>
 *    <td>LUFA board hardware drivers to use (see \ref Page_DeviceSupport).</td>
 *   </tr>
 *   <tr>
 *    <td><tt>OPTIMIZATION</tt></td>
 *    <td>Optimization level to use when compiling source files (see GCC manual).</td>
 *   </tr>
 *   <tr>
 *    <td><tt>C_STANDARD</tt></td>
 *    <td>Version of the C standard to apply when compiling C++ source files (see GCC manual).</td>
 *   </tr>
 *   <tr>
 *    <td><tt>CPP_STANDARD</tt></td>
 *    <td>Version of the C++ standard to apply when compiling C++ source files (see GCC manual).</td>
 *   </tr>
 *   <tr>
 *    <td><tt>F_CPU</tt></td>
 *    <td>Speed of the processor CPU clock, in Hz.</td>
 *   </tr>
 *   <tr>
 *    <td><tt>C_FLAGS</tt></td>
 *    <td>Flags to pass to the C compiler only, after the automatically generated flags.</td>
 *   </tr>
 *   <tr>
 *    <td><tt>CPP_FLAGS</tt></td>
 *    <td>Flags to pass to the C++ compiler only, after the automatically generated flags.</td>
 *   </tr>
 *   <tr>
 *    <td><tt>ASM_FLAGS</tt></td>
 *    <td>Flags to pass to the assembler only, after the automatically generated flags.</td>
 *   </tr>
 *   <tr>
 *    <td><tt>CC_FLAGS</tt></td>
 *    <td>Common flags to pass to the compiler, assembler and linker, after the automatically generated flags.</td>
 *   </tr>
 *   <tr>
 *    <td><tt>LD_FLAGS</tt></td>
 *    <td>Flags to pass to the linker, after the automatically generated flags.</td>
 *   </tr>
 *   <tr>
 *    <td><tt>OBJDIR</tt></td>
 *    <td>Directory to place the generated object and dependency files. If set to "." the same folder as the source file will be used.
 *        \note When this option is enabled, all source filenames must be unique.</td>
 *   </tr>
 *  </table>
 *
 *  \section SSec_BuildModule_BUILD_ProvideVariables Module Provided Variables
 *
 *  <table>
 *   <tr>
 *    <td><i>None</i></td>
 *   </tr>
 *  </table> 
 *
 *  \section SSec_BuildModule_BUILD_ProvidedMacros Module Provided Macros
 *
 *  <table>
 *   <tr>
 *    <td><i>None</i></td>
 *   </tr>
 *  </table>
 */

/** \page Page_BuildModule_CORE The CORE build module
 *
 *  The core LUFA build system module, providing common build system help and information targets.
 *
 *  To use this module in your application makefile, add the following code:
 *  \code
 *  include $(LUFA_PATH)/Build/lufa.core.in
 *  \endcode
 *
 *  \section SSec_BuildModule_CORE_Requirements Requirements
 *  This module has no requirements outside a standard *nix shell like environment; the <tt>sh</tt>
 *  shell, GNU <tt>make</tt> and *nix CoreUtils (<tt>echo</tt>, <tt>printf</tt>, etc.).
 *
 *  \section SSec_BuildModule_CORE_Targets Targets
 *
 *  <table>
 *   <tr>
 *    <td><tt>help</tt></td>
 *    <td>Display build system help and configuration information.</td>
 *   </tr>
 *   <tr>
 *    <td><tt>list_targets</tt></td>
 *    <td>List all available build targets from the build system.</td>
 *   </tr>
 *   <tr>
 *    <td><tt>list_modules</tt></td>
 *    <td>List all available build modules from the build system.</td>
 *   </tr>
 *   <tr>
 *    <td><tt>list_mandatory</tt></td>
 *    <td>List all mandatory parameters required by the included modules.</td>
 *   </tr>
 *   <tr>
 *    <td><tt>list_optional</tt></td>
 *    <td>List all optional parameters required by the included modules.</td>
 *   </tr>
 *   <tr>
 *    <td><tt>list_provided</tt></td>
 *    <td>List all variables provided by the included modules.</td>
 *   </tr>
 *   <tr>
 *    <td><tt>list_macros</tt></td>
 *    <td>List all macros provided by the included modules.</td>
 *   </tr>
 *  </table>
 *
 *  \section SSec_BuildModule_CORE_MandatoryParams Mandatory Parameters
 *
 *  <table>
 *   <tr>
 *    <td><i>None</i></td>
 *   </tr>
 *  </table>
 *
 *  \section SSec_BuildModule_CORE_OptionalParams Optional Parameters
 *
 *  <table>
 *   <tr>
 *    <td><i>None</i></td>
 *   </tr>
 *  </table>
 *
 *  \section SSec_BuildModule_CORE_ProvideVariables Module Provided Variables
 *
 *  <table>
 *   <tr>
 *    <td><i>None</i></td>
 *   </tr>
 *  </table> 
 *
 *  \section SSec_BuildModule_CORE_ProvidedMacros Module Provided Macros
 *
 *  <table>
 *   <tr>
 *    <td><i>None</i></td>
 *   </tr>
 *  </table>
 */

/** \page Page_BuildModule_ATPROGRAM The ATPROGRAM build module
 *
 *  The ATPROGRAM programming utility LUFA build system module, providing targets to reprogram an
 *  Atmel processor FLASH and EEPROM memories with a project's compiled binary output files.
 *
 *  To use this module in your application makefile, add the following code:
 *  \code
 *  include $(LUFA_PATH)/Build/lufa.atprogram.in
 *  \endcode
 *
 *  \section SSec_BuildModule_ATPROGRAM_Requirements Requirements
 *  This module requires the <tt>atprogram.exe</tt> utility to be available in your system's <b>PATH</b>
 *  variable. The <tt>atprogram.exe</tt> utility is distributed in Atmel AVR Studio 5.x and Atmel Studio 6.x
 *  inside the application install folder's "\avrdbg" subdirectory.
 *
 *  \section SSec_BuildModule_ATPROGRAM_Targets Targets
 *
 *  <table>
 *   <tr>
 *    <td><tt>atprogram</tt></td>
 *    <td>Program the device FLASH memory with the application's executable data.</td>
 *   </tr>
 *   <tr>
 *    <td><tt>atprogram-ee</tt></td>
 *    <td>Program the device EEPROM memory with the application's EEPROM data.</td>
 *   </tr>
 *  </table>
 *
 *  \section SSec_BuildModule_ATPROGRAM_MandatoryParams Mandatory Parameters
 *
 *  <table>
 *   <tr>
 *    <td><tt>MCU</tt></td>
 *    <td>Name of the Atmel processor model (e.g. <tt>at90usb1287</tt>).</td>
 *   </tr>
 *   <tr>
 *    <td><tt>TARGET</tt></td>
 *    <td>Name of the application output file prefix (e.g. <tt>TestApplication</tt>).</td>
 *   </tr>
 *  </table>
 *
 *  \section SSec_BuildModule_ATPROGRAM_OptionalParams Optional Parameters
 *
 *  <table>
 *   <tr>
 *    <td><tt>ATPROGRAM_PROGRAMMER</tt></td>
 *    <td>Name of the Atmel programmer or debugger tool to communicate with (e.g. <tt>jtagice3</tt>).</td>
 *   </tr>
 *   <tr>
 *    <td><tt>ATPROGRAM_INTERFACE</tt></td>
 *    <td>Name of the programming interface to use when programming the target (e.g. <tt>spi</tt>).</td>
 *   </tr>
 *   <tr>
 *    <td><tt>ATPROGRAM_PORT</tt></td>
 *    <td>Name of the communication port to use when when programming with a serially connected tool (e.g. <tt>COM2</tt>).</td>
 *   </tr>
 *  </table>
 *
 *  \section SSec_BuildModule_ATPROGRAM_ProvideVariables Module Provided Variables
 *
 *  <table>
 *   <tr>
 *    <td><i>None</i></td>
 *   </tr>
 *  </table> 
 *
 *  \section SSec_BuildModule_ATPROGRAM_ProvidedMacros Module Provided Macros
 *
 *  <table>
 *   <tr>
 *    <td><i>None</i></td>
 *   </tr>
 *  </table>
 */

/** \page Page_BuildModule_AVRDUDE The AVRDUDE build module
 *
 *  The AVRDUDE programming utility LUFA build system module, providing targets to reprogram an
 *  Atmel processor FLASH and EEPROM memories with a project's compiled binary output files.
 *
 *  To use this module in your application makefile, add the following code:
 *  \code
 *  include $(LUFA_PATH)/Build/lufa.avrdude.in
 *  \endcode
 *
 *  \section SSec_BuildModule_AVRDUDE_Requirements Requirements
 *  This module requires the <tt>avrdude</tt> utility to be available in your system's <b>PATH</b>
 *  variable. The <tt>avrdude</tt> utility is distributed in the old WinAVR project releases for
 *  Windows (<a>winavr.sourceforge.net</a>) or can be installed on *nix systems via the project's
 *  source code (<a>https://savannah.nongnu.org/projects/avrdude</a>) or through the package manager.
 *
 *  \section SSec_BuildModule_AVRDUDE_Targets Targets
 *
 *  <table>
 *   <tr>
 *    <td><tt>avrdude</tt></td>
 *    <td>Program the device FLASH memory with the application's executable data.</td>
 *   </tr>
 *   <tr>
 *    <td><tt>avrdude</tt></td>
 *    <td>Program the device EEPROM memory with the application's EEPROM data.</td>
 *   </tr>
 *  </table>
 *
 *  \section SSec_BuildModule_AVRDUDE_MandatoryParams Mandatory Parameters
 *
 *  <table>
 *   <tr>
 *    <td><tt>MCU</tt></td>
 *    <td>Name of the Atmel processor model (e.g. <tt>at90usb1287</tt>).</td>
 *   </tr>
 *   <tr>
 *    <td><tt>TARGET</tt></td>
 *    <td>Name of the application output file prefix (e.g. <tt>TestApplication</tt>).</td>
 *   </tr>
 *  </table>
 *
 *  \section SSec_BuildModule_AVRDUDE_OptionalParams Optional Parameters
 *
 *  <table>
 *   <tr>
 *    <td><tt>AVRDUDE_PROGRAMMER</tt></td>
 *    <td>Name of the programmer or debugger tool to communicate with (e.g. <tt>jtagicemkii</tt>).</td>
 *   </tr>
 *   <tr>
 *    <td><tt>ATPROGRAM_PORT</tt></td>
 *    <td>Name of the communication port to use when when programming with the connected tool (e.g. <tt>COM2</tt>, <tt>/dev/ttyUSB0</tt> or <tt>usb</tt>).</td>
 *   </tr>
 *   <tr>
 *    <td><tt>ATPROGRAM_FLAGS</tt></td>
 *    <td>Additional flags to pass to avrdude when programming, applied after the automatically generated flags.</td>
 *   </tr>
 *  </table>
 *
 *  \section SSec_BuildModule_AVRDUDE_ProvideVariables Module Provided Variables
 *
 *  <table>
 *   <tr>
 *    <td><i>None</i></td>
 *   </tr>
 *  </table> 
 *
 *  \section SSec_BuildModule_AVRDUDE_ProvidedMacros Module Provided Macros
 *
 *  <table>
 *   <tr>
 *    <td><i>None</i></td>
 *   </tr>
 *  </table>
 */
 
 /** \page Page_BuildModule_CPPCHECK The CPPCHECK build module
 *
 *  The CPPCHECK programming utility LUFA build system module, providing targets to statically
 *  analyze C and C++ source code for errors and performance/style issues.
 *
 *  To use this module in your application makefile, add the following code:
 *  \code
 *  include $(LUFA_PATH)/Build/lufa.cppcheck.in
 *  \endcode
 *
 *  \section SSec_BuildModule_CPPCHECK_Requirements Requirements
 *  This module requires the <tt>cppcheck</tt> utility to be available in your system's <b>PATH</b>
 *  variable. The <tt>cppcheck</tt> utility is distributed through the project's home page
 *  (<a>http://cppcheck.sourceforge.net</a>) for Windows, and can be installed on *nix systems via
 *  the project's source code or through the package manager.
 *
 *  \section SSec_BuildModule_CPPCHECK_Targets Targets
 *
 *  <table>
 *   <tr>
 *    <td><tt>cppcheck</tt></td>
 *    <td>Statically analyze the project source code for issues.</td>
 *   </tr>
 *   <tr>
 *    <td><tt>cppcheck-config</tt></td>
 *    <td>Check the <tt>cppcheck</tt> configuration - scan source code and warn about missing header files and other issues.</td>
 *   </tr>
 *  </table>
 *
 *  \section SSec_BuildModule_CPPCHECK_MandatoryParams Mandatory Parameters
 *
 *  <table>
 *   <tr>
 *    <td><tt>SRC</tt></td>
 *    <td>List of source files to statically analyze.</td>
 *   </tr>
 *  </table>
 *
 *  \section SSec_BuildModule_CPPCHECK_OptionalParams Optional Parameters
 *
 *  <table>
 *   <tr>
 *    <td><tt>CPPCHECK_INCLUDES</tt></td>
 *    <td>Path of extra directories to check when attemting to resolve C/C++ header file includes.</td>
 *   </tr>
 *   <tr>
 *    <td><tt>CPPCHECK_EXCLUDES</tt></td>
 *    <td>Paths or path fragments to exclude when analyzing.</td>
 *   </tr>
 *   <tr>
 *    <td><tt>CPPCHECK_MSG_TEMPLATE</tt></td>
 *    <td>Output message template to use when printing errors, warnings and information (see <tt>cppcheck</tt> documentation).</td>
 *   </tr>
 *   <tr>
 *    <td><tt>CPPCHECK_ENABLE</tt></td>
 *    <td>Analysis rule categories to enable (see <tt>cppcheck</tt> documentation).</td>
 *   </tr>
 *   <tr>
 *    <td><tt>CPPCHECK_SUPPRESS</tt></td>
 *    <td>Specific analysis rules to suppress (see <tt>cppcheck</tt> documentation).</td>
 *   </tr>
 *   <tr>
 *    <td><tt>CPPCHECK_FAIL_ON_WARNING</tt></td>
 *    <td>Set to <b>Y</b> to fail the analysis job with an error exit code if warnings are found, <b>N</b> to continue without failing.</td>
 *   </tr>
 *   <tr>
 *    <td><tt>CPPCHECK_QUIET</tt></td>
 *    <td>Set to <b>Y</b> to suppress all output except warnings and errors, <b>N</b> to show verbose output information.</td>
 *   </tr>
 *   <tr>
 *    <td><tt>CPPCHECK_FLAGS</tt></td>
 *    <td>Extra flags to pass to <tt>cppcheck</tt>, after the automatically generated flags.</td>
 *   </tr>
 *  </table>
 *
 *  \section SSec_BuildModule_CPPCHECK_ProvideVariables Module Provided Variables
 *
 *  <table>
 *   <tr>
 *    <td><i>None</i></td>
 *   </tr>
 *  </table> 
 *
 *  \section SSec_BuildModule_CPPCHECK_ProvidedMacros Module Provided Macros
 *
 *  <table>
 *   <tr>
 *    <td><i>None</i></td>
 *   </tr>
 *  </table>
 */
 
 /** \page Page_BuildModule_DFU The DFU build module
 *
 *  The DFU programming utility LUFA build system module, providing targets to reprogram an
 *  Atmel processor FLASH and EEPROM memories with a project's compiled binary output files.
 *  This module requires a DFU class bootloader to be running in the target.
 *
 *  To use this module in your application makefile, add the following code:
 *  \code
 *  include $(LUFA_PATH)/Build/lufa.dfu.in
 *  \endcode
 *
 *  \section SSec_BuildModule_DFU_Requirements Requirements
 *  This module requires either the <tt>batchisp</tt> utility from Atmel's FLIP utility, or the open
 *  source <tt>dfu-programmer</tt> utility (<a>http://dfu-programmer.sourceforge.net/</a>) to be
 *  available in your system's <b>PATH</b> variable. On *nix systems the <tt>dfu-programmer</tt> utility
 *  can be installed via the project's source code or through the package manager.
 *
 *  \section SSec_BuildModule_DFU_Targets Targets
 *
 *  <table>
 *   <tr>
 *    <td><tt>dfu</tt></td>
 *    <td>Program the device FLASH memory with the application's executable data using <tt>dfu-programmer</tt>.</td>
 *   </tr>
 *   <tr>
 *    <td><tt>dfu-ee</tt></td>
 *    <td>Program the device EEPROM memory with the application's EEPROM data using <tt>dfu-programmer</tt>.</td>
 *   </tr>
 *   <tr>
 *    <td><tt>flip</tt></td>
 *    <td>Program the device FLASH memory with the application's executable data using <tt>batchisp</tt>.</td>
 *   </tr>
 *   <tr>
 *    <td><tt>flip-ee</tt></td>
 *    <td>Program the device EEPROM memory with the application's EEPROM data using <tt>batchisp</tt>.</td>
 *   </tr>
 *  </table>
 *
 *  \section SSec_BuildModule_DFU_MandatoryParams Mandatory Parameters
 *
 *  <table>
 *   <tr>
 *    <td><tt>MCU</tt></td>
 *    <td>Name of the Atmel processor model (e.g. <tt>at90usb1287</tt>).</td>
 *   </tr>
 *   <tr>
 *    <td><tt>TARGET</tt></td>
 *    <td>Name of the application output file prefix (e.g. <tt>TestApplication</tt>).</td>
 *   </tr>
 *  </table>
 *
 *  \section SSec_BuildModule_DFU_OptionalParams Optional Parameters
 *
 *  <table>
 *   <tr>
 *    <td><i>None</i></td>
 *   </tr>
 *  </table>
 *
 *  \section SSec_BuildModule_DFU_ProvideVariables Module Provided Variables
 *
 *  <table>
 *   <tr>
 *    <td><i>None</i></td>
 *   </tr>
 *  </table> 
 *
 *  \section SSec_BuildModule_DFU_ProvidedMacros Module Provided Macros
 *
 *  <table>
 *   <tr>
 *    <td><i>None</i></td>
 *   </tr>
 *  </table>
 */
 
 /** \page Page_BuildModule_DOXYGEN The DOXYGEN build module
 *
 *  The DOXYGEN code documentation utility LUFA build system module, providing targets to generate
 *  project HTML and other format documentation from a set of source files that include special
 *  Doxygen comments.
 *
 *  To use this module in your application makefile, add the following code:
 *  \code
 *  include $(LUFA_PATH)/Build/lufa.doxygen.in
 *  \endcode
 *
 *  \section SSec_BuildModule_DOXYGEN_Requirements Requirements
 *  This module requires the <tt>doxygen</tt> utility from the Doxygen website
 *  (<a>http://www.stack.nl/~dimitri/doxygen/</a>) to be available in your system's <b>PATH</b>
 *  variable. On *nix systems the <tt>doxygen</tt> utility can be installed via the project's source
 *  code or through the package manager.
 *
 *  \section SSec_BuildModule_DOXYGEN_Targets Targets
 *
 *  <table>
 *   <tr>
 *    <td><tt>doxygen</tt></td>
 *    <td>Generate project documentation.</td>
 *   </tr>
 *  </table>
 *
 *  \section SSec_BuildModule_DOXYGEN_MandatoryParams Mandatory Parameters
 *
 *  <table>
 *   <tr>
 *    <td><tt>LUFA_PATH</tt></td>
 *    <td>Path to the LUFA library core, either relative or absolute (e.g. <tt>../LUFA-000000/LUFA/</tt>).</td>
 *   </tr>
 *  </table>
 *
 *  \section SSec_BuildModule_DOXYGEN_OptionalParams Optional Parameters
 *
 *  <table>
 *   <tr>
 *    <td><tt>DOXYGEN_CONF</tt></td>
 *    <td>Name and path of the base Doxygen configuration file for the project.</td>
 *   </tr>
 *   <tr>
 *    <td><tt>DOXYGEN_FAIL_ON_WARNING</tt></td>
 *    <td>Set to <b>Y</b> to fail the generation with an error exit code if warnings are found other than unsupported configuration parameters, <b>N</b> to continue without failing.</td>
 *   </tr>
 *   <tr>
 *    <td><tt>DOXYGEN_OVERRIDE_PARAMS</tt></td>
 *    <td>Extra Doxygen configuration parameters to apply, overriding the corresponding config entry in the project's configuration file (e.g. <tt>QUIET=YES</tt>).</td>
 *   </tr>
 *  </table>
 *
 *  \section SSec_BuildModule_DOXYGEN_ProvideVariables Module Provided Variables
 *
 *  <table>
 *   <tr>
 *    <td><i>None</i></td>
 *   </tr>
 *  </table> 
 *
 *  \section SSec_BuildModule_DOXYGEN_ProvidedMacros Module Provided Macros
 *
 *  <table>
 *   <tr>
 *    <td><i>None</i></td>
 *   </tr>
 *  </table>
 */
 
 /** \page Page_BuildModule_SOURCES The SOURCES build module
 *
 *  The SOURCES LUFA build system module, providing variables listing the various LUFA source files
 *  required to be build by a project for a given LUFA module. This module gives a way to reference
 *  LUFA source files symbollically, so that changes to the library structure do not break the library
 *  makefile.
 *
 *  To use this module in your application makefile, add the following code:
 *  \code
 *  include $(LUFA_PATH)/Build/lufa.sources.in
 *  \endcode
 *
 *  \section SSec_BuildModule_SOURCES_Requirements Requirements
 *  None.
 *
 *  \section SSec_BuildModule_SOURCES_Targets Targets
 *
 *  <table>
 *   <tr>
 *    <td><i>None</i></td>
 *   </tr>
 *  </table>
 *
 *  \section SSec_BuildModule_SOURCES_MandatoryParams Mandatory Parameters
 *
 *  <table>
 *   <tr>
 *    <td><tt>LUFA_PATH</tt></td>
 *    <td>Path to the LUFA library core, either relative or absolute (e.g. <tt>../LUFA-000000/LUFA/</tt>).</td>
 *   </tr>
 *   <tr>
 *    <td><tt>ARCH</tt></td>
 *    <td>Architecture of the target processor (see \ref Page_DeviceSupport).</td>
 *   </tr>
 *  </table>
 *
 *  \section SSec_BuildModule_SOURCES_OptionalParams Optional Parameters
 *
 *  <table>
 *   <tr>
 *    <td><i>None</i></td>
 *   </tr>
 *  </table>
 *
 *  \section SSec_BuildModule_SOURCES_ProvideVariables Module Provided Variables
 *
 *  <table>
 *   <tr>
 *    <td><tt>LUFA_SRC_USB</tt></td>
 *    <td>List of LUFA USB driver source files.</td>
 *   </tr>
 *   <tr>
 *    <td><tt>LUFA_SRC_USBCLASS</tt></td>
 *    <td>List of LUFA USB Class driver source files.</td>
 *   </tr>
 *   <tr>
 *    <td><tt>LUFA_SRC_TEMPERATURE</tt></td>
 *    <td>List of LUFA temperature sensor driver source files.</td>
 *   </tr>
 *   <tr>
 *    <td><tt>LUFA_SRC_SERIAL</tt></td>
 *    <td>List of LUFA Serial U(S)ART driver source files.</td>
 *   </tr>
 *   <tr>
 *    <td><tt>LUFA_SRC_TWI</tt></td>
 *    <td>List of LUFA TWI driver source files.</td>
 *   </tr>
 *   <tr>
 *    <td><tt>LUFA_SRC_PLATFORM</tt></td>
 *    <td>List of LUFA architecture specific platform management source files.</td>
 *   </tr> 
 *  </table> 
 *
 *  \section SSec_BuildModule_SOURCES_ProvidedMacros Module Provided Macros
 *
 *  <table>
 *   <tr>
 *    <td><i>None</i></td>
 *   </tr>
 *  </table>
 */