Add feature set, trademarks
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@426 42af7a65-404d-4744-a932-0658087f49c3
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<tr align="center" bgcolor="#e4e4e4">
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<td>
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<h1><big><font color="#3c34ec"><i>NuttX RTOS</i></font></big></h1>
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<p>Last Updated: November 28, 2007</p>
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<p>Last Updated: December 5, 2007</p>
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</table>
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@ -53,6 +53,10 @@
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<td><img src="favicon.ico"></td>
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<td><a href="#documentation">Other Documentation</a></td>
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</tr>
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<tr>
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<td><img src="favicon.ico"></td>
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<td><a href="#trademarks">Trademarks</a></td>
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</tr>
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</table>
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</td>
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</td>
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@ -73,7 +77,7 @@
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<p>
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<center><table width="90%">
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<tr>
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<td valign="top"><img src="favicon.ico"></td>
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<td valign="top" width="18"><img src="favicon.ico"></td>
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<td bgcolor="#5eaee1">
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<b>Small Footprint</b>
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</td>
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</p>
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</tr>
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<tr>
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<td valign="top"><img src="favicon.ico"></td>
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<td valign="top" width="18"><img src="favicon.ico"></td>
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<td bgcolor="#5eaee1">
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<b>Rich Feature OS Set</b>
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</td>
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<td><br></td>
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<td>
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<p>
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The goal is to provide most standard POSIX OS interfaces to support
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a rich, multi-threaded development environment for deeply embedded
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The goal is to provide implementations of most standard POSIX OS interfaces
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to support a rich, multi-threaded development environment for deeply embedded
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processors.
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</p>
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NON-GOALS: (1) It is not a goal to provide the rich level of OS
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</p>
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</tr>
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<tr>
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<td valign="top"><img src="favicon.ico"></td>
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<td valign="top" width="18"><img src="favicon.ico"></td>
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<td bgcolor="#5eaee1">
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<b>Highly Scalable</b>
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</td>
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</p>
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</tr>
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<tr>
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<td valign="top"><img src="favicon.ico"></td>
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<td valign="top" width="18"><img src="favicon.ico"></td>
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<td bgcolor="#5eaee1">
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<b>Standards Compliance</b>
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</td>
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@ -135,7 +139,7 @@
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<td>
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<p>
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NuttX strives to achieve a high degree of standards compliance.
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The primary governing standards are POSIX and ANSI standards.
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The primary governing standards are POSIX, ANSI, and BSD standards.
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Additional standard APIs from Unix and other common RTOS's are
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adopted for functionality not available under these standards
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or for functionaly that is not appropriate for the deeply-embedded
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@ -147,7 +151,7 @@
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</p>
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</tr>
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<tr>
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<td valign="top"><img src="favicon.ico"></td>
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<td valign="top" width="18"><img src="favicon.ico"></td>
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<td bgcolor="#5eaee1">
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<b>Real-Time</b>
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</td>
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</p>
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<td valign="top"><img src="favicon.ico"></td>
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<td valign="top" width="18"><img src="favicon.ico"></td>
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<td bgcolor="#5eaee1">
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<b>Totally Open</b>
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</td>
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</tr>
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</table></center>
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<p>
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<b>Feature Set</b>.
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Key features of NuttX include:
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<p>
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<center><table width="90%">
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<tr>
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<td valign="top" width="18"><img src="favicon.ico"></td>
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<td bgcolor="#5eaee1">
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<b>Standards Compliant Core Task Management</b>
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</td>
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</tr>
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<tr>
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<td><br></td>
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<td>
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<p>
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Modular, micro-kernel
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</p>
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</tr>
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<tr>
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<td><br></td>
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<td>
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<p>
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Fully pre-emptible.
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</p>
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</tr>
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<td><br></td>
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<td>
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<p>
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Naturally calable.
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</p>
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</tr>
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<td><br></td>
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<td>
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<p>
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Easily extensible to new processor architectures, SoC architecture, or board architectures.
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</p>
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<tr>
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<td><br></td>
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<td>
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<p>
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FIFO and round-robin scheduling.
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</p>
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</tr>
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<tr>
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<td><br></td>
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<p>
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Realtime, deterministic.
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</p>
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</tr>
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<tr>
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<td><br></td>
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<td>
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<p>
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POSIX/ANSI-like task controls, named message queues, counting semaphores, clocks/timers, signals, pthreads, environment variables, filesystem.
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</p>
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</tr>
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<tr>
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<td><br></td>
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<td>
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<p>
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VxWorks-like task management and watchdog timers.
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</p>
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</tr>
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<tr>
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<td><br></td>
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<td>
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<p>
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BSD socket interface.
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</p>
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</tr>
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<tr>
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<td><br></td>
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<td>
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<p>
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Extensions to manage pre-emption.
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</p>
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</tr>
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<tr>
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<td><br></td>
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<td>
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<p>
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Well documented in the NuttX <a href="NuttxUserGuide.html">User Guide</a>.
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</p>
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</tr>
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<td valign="top" width="18"><img src="favicon.ico"></td>
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<td bgcolor="#5eaee1">
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<b>File system</b>
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</td>
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</tr>
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<tr>
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<td><br></td>
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<td>
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<p>
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In-memory, pseudo file-system.
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</p>
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</tr>
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<tr>
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<td><br></td>
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<td>
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<p>
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Supports character and block drivers.
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</p>
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</tr>
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<tr>
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<td><br></td>
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<td>
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<p>
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Network and serial driver architecture.
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</p>
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</tr>
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<tr>
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<td><br></td>
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<td>
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<p>
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Mountable volumes. Binds mountpoint, filesystem, and block driver.
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</p>
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</tr>
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<tr>
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<td><br></td>
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<td>
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<p>
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VFAT filesystem support.
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</p>
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</tr>
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<tr>
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<td valign="top" width="18"><img src="favicon.ico"></td>
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<td bgcolor="#5eaee1">
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<b>C Library</b>
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</td>
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</tr>
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<tr>
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<td><br></td>
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<td>
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<p>
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Fully integrated into the OS.
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</p>
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</tr>
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<tr>
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<td valign="top" width="18"><img src="favicon.ico"></td>
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<td bgcolor="#5eaee1">
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<b>Networking</b>
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</td>
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</tr>
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<tr>
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<td><br></td>
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<td>
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<p>
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TCP/IP, UDP, ICMP stacks.
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</p>
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</tr>
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<tr>
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<td><br></td>
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<td>
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<p>
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Small footprint (based on uIP).
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</p>
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</tr>
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<tr>
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<td><br></td>
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<td>
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<p>
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BSD compatible socket layer.
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</p>
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</tr>
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<tr>
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<td><br></td>
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<td>
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<p>
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Networking utilities.
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</p>
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</tr>
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</table></center>
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<table width ="100%">
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<tr bgcolor="#e4e4e4">
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<td>
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@ -778,6 +985,28 @@ Other memory:
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</tr>
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</center></ul>
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<small>
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<table width ="100%">
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<tr bgcolor="#e4e4e4">
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<td>
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<a name="trademarks"><h1>Trademarks</h1></a>
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</td>
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</tr>
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</table>
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<ul>
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<li>ARM, ARM7 ARM7TDMI, ARM9, ARM926EJS are trademarks of Advanced RISC Machines, Limited.</li>
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<li>Cygwin is a trademarksof Red Hat, Incorporated.</li>
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<li>Linux is a registered trademark of Linus Torvalds.</li>
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<li>LPC2148 is a trademark of NXP Semiconductors.</li>
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<li>TI is a tradename of Texas Instruments Incorporated.</li>
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<li>VxWorks is a registered trademark of Wind River Systems, Incorporated.</li>
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</ul>
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<p>
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NOTE: NuttX is <i>not</i> licensed to use the POSIX trademark.
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</p>
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</small>
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</body>
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</html>
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