a2ac2de274
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@4511 42af7a65-404d-4744-a932-0658087f49c3
3052 lines
102 KiB
HTML
3052 lines
102 KiB
HTML
<html>
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<head>
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<title>NuttX</title>
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</head>
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<body background="backgd.gif">
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<hr><hr>
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<table width ="100%">
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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: March 24, 2012</p>
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<hr><hr>
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<table width ="100%">
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<tr bgcolor="#e4e4e4">
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<td>
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<h1>Table of Contents</h1>
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</table>
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<center><table width ="80%">
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<tr>
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<table>
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<td valign="top" width="22"><img height="20" width="20" src="favicon.ico"></td>
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<td>
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<a href="#overview">Overview</a>.<br>
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What is NuttX? Look at all those files and features... How can it be a tiny OS?
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<td valign="top" width="22"><img height="20" width="20" src="favicon.ico"></td>
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<td>
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<a href="#group">NuttX Discussion Group</a>.<br>
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Do you want to talk about NuttX features? Do you need some help? Problems? Bugs?
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<td valign="top" width="22"><img height="20" width="20" src="favicon.ico"></td>
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<td>
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<a href="#downloads">Downloads</a>.<br>
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Where can I get NuttX? What is the current development status?
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<td valign="top" width="22"><img height="20" width="20" src="favicon.ico"></td>
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<td>
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<a href="#platforms">Supported Platforms</a>.<br>
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What target platforms has NuttX been ported to?
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<tr>
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<td valign="top" width="22"><img height="20" width="20" src="favicon.ico"></td>
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<td>
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<a href="#environments">Development Environments</a>.<br>
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What kinds of host cross-development platforms can be used with NuttX?
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</td>
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<td valign="top" width="22"><img height="20" width="20" src="favicon.ico"></td>
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<td>
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<a href="#footprint">Memory Footprint</a>.<br>
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Just how big is it? Do I have enough memory to use NuttX?
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</tr>
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<td valign="top" width="22"><img height="20" width="20" src="favicon.ico"></td>
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<td>
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<a href="#licensing">Licensing</a>.<br>
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Are there any licensing restrictions for the use of NuttX? (Almost none)
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Will there be problems if I link my proprietary code with NuttX? (No)
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</td>
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<tr>
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<td valign="top" width="22"><img height="20" width="20" src="favicon.ico"></td>
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<td>
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<a href="#history">Release History</a><br>
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What has changed in the last release of NuttX?
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What unreleased changes are pending in SVN?
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</td>
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<td valign="top" width="22"><img height="20" width="20" src="favicon.ico"></td>
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<td>
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<a href="#TODO">Bugs, Issues, <i>Things-To-Do</i></a>.<br>
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Software is never finished nor ever tested well enough.
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(Do you want to help develop NuttX? If so, send me an email).
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<td valign="top" width="22"><img height="20" width="20" src="favicon.ico"></td>
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<td>
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<a href="#documentation">Other Documentation</a>.<br>
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What other NuttX documentation is available?
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</td>
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</tr>
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<td valign="top" width="22"><img height="20" width="20" src="favicon.ico"></td>
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<td>
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<a href="#trademarks">Trademarks</a>.<br>
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Some of the words used in this document belong to other people.
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</tr>
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</table>
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</td>
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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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<a name="overview"><h1>Overview</h1></a>
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</td>
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</tr>
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</table>
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<p>
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<b>Goals</b>.
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Nuttx is a real timed embedded operating system (RTOS).
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Its goals are:
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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="22"><img height="20" width="20" 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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<td><br></td>
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<td>
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<p>
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Usable in all but the tightest micro-controller environments,
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The focus is on the tiny-to-small, deeply embedded environment.
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</p>
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<td valign="top" width="22"><img height="20" width="20" 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 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 level of OS features like those provided by Linux.
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In order to work with smaller MCUs, small footprint must be more important than an extensive feature set.
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But standard compliance is more important than small footprint.
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Surely a smaller RTOS could be produced by ignoring standards.
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Think of NuttX is a tiny Linux work-alike with a much reduced feature set.
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(2) There is no MMU-based support for processes.
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At present, NuttX assumes a flat address space.
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</p>
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</tr>
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<td valign="top" width="22"><img height="20" width="20" 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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<td><br></td>
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<td>
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<p>
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Fully scalable from tiny (8-bit) to moderate embedded (32-bit).
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Scalability with rich feature set is accomplished with:
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Many tiny source files, link from static libraries, highly configurable, use of
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weak symbols when available.
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</p>
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</tr>
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<td valign="top" width="22"><img height="20" width="20" src="favicon.ico"></td>
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<td bgcolor="#5eaee1">
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<b>Standards Compliance</b>
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<td><br></td>
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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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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 functionality that is not appropriate for the deeply-embedded
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RTOS (such as <code>fork()</code>).
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</p>
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<p>
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Because of this standards conformance, software developed under other
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standard OSs (such as Linux) should port easily to NuttX.
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</p>
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</tr>
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<td valign="top" width="22"><img height="20" width="20" src="favicon.ico"></td>
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<td bgcolor="#5eaee1">
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<b>Real-Time</b>
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<td><br></td>
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<td>
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<p>
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Fully pre-emptible, fixed priority and round-robin scheduling.
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</p>
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<td valign="top" width="22"><img height="20" width="20" 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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<td><br></td>
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<td>
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<p>
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Non-restrictive BSD license.
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</p>
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</tr>
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<td valign="top" width="22"><img height="20" width="20" src="favicon.ico"></td>
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<td bgcolor="#5eaee1">
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<b>GNU Toolchains</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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Compatible GNU toolchains based on <a href="http://buildroot.uclibc.org/">buildroot</a>
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available for
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<a href="https://sourceforge.net/project/showfiles.php?group_id=189573&package_id=224585">download</a>
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to provide a complete development environment for many architectures.
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</p>
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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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<td valign="top" width="22"><img height="20" width="20" 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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<td><br></td>
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<td>
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<p>
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<li>Modular, micro-kernel</li>
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</p>
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<td><br></td>
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<td>
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<p>
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<li>Fully pre-emptible.</li>
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</p>
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<td><br></td>
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<td>
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<p>
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<li>Naturally scalable.</li>
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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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<li>Highly configurable.</li>
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</p>
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<td><br></td>
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<p>
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<li>
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Easily extensible to new processor architectures, SoC architecture, or board architectures.
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A <a href="NuttxPortingGuide.html">Porting Guide</a> is available.
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</li>
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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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<li>FIFO and round-robin scheduling.</li>
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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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<li>Realtime, deterministic, with support for priority inheritance</li>
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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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<li>POSIX/ANSI-like task controls, named message queues, counting semaphores, clocks/timers, signals, pthreads, environment variables, filesystem.</li>
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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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<li>VxWorks-like task management and watchdog timers.</li>
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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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<li>BSD socket interface.</li>
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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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<li>Extensions to manage pre-emption.</li>
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</p>
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<td><br></td>
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<td>
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<p>
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<li>Inheritable "controlling terminals" and I/O re-direction.</li>
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</p>
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<td><br></td>
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<td>
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<p>
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<li>On-demand paging.</li>
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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>System logging.</li>
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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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<li>May be built either as an open, flat embedded RTOS or as a separtely built, secure micro-kernel with a system call interface.</li>
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</p>
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<td><br></td>
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<td>
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<p>
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<li>Well documented in the NuttX <a href="NuttxUserGuide.html">User Guide</a>.</li>
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</p>
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</tr>
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<td valign="top" width="22"><img height="20" width="20" 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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<li>Tiny, in-memory, root pseudo-file-system.</li>
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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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<li>Virtual file system supports drivers and mountpoints.</li>
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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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<li>
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Mount-able volumes. Bind mountpoint, filesystem, and block device driver.
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</li>
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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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<li>
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FAT12/16/32 filesystem support with optional FAT long file name support<small><sup>1</sup></small>.
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</li>
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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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<li>
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NXFFS. The tiny NuttX wear-leveling FLASH file system.
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</li>
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</p>
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<td><br></td>
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<td>
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<p>
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<li>ROMFS filesystem support.</li>
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</p>
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<td><br></td>
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<td>
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<p>
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<li><a href="NuttXNxFlat.html">NXFLAT</a>.
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A new binary format call NXFLAT that can be used to
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execute separately linked programs in place in a 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><small>
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<sup>1</sup>
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FAT long file name support may be subject to certain Microsoft patent restrictions if enabled.
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See the top-level <code>COPYING</code> file for details.
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</small></p>
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</tr>
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<tr>
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<td valign="top" width="22"><img height="20" width="20" src="favicon.ico"></td>
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<td bgcolor="#5eaee1">
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<b>Device Drivers</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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<li>Supports character and block drivers as well as specialized driver interfaces.</li>
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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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<li>
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Network, USB (host), USB (device), serial, CAN, ADC, DAC, PWM, and Quadrature Encoder driver architectures.
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</li>
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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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<li>
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RAMDISK, pipes, FIFO, <code>/dev/null</code>, <code>/dev/zero</code>, and loop drivers.
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</li>
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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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<li>Generic driver for SPI-based or SDIO-based MMC/SD/SDH cards.</li>
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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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<li><a href="NuttxPortingGuide.html#pwrmgmt">Power management</a> sub-system.</li>
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</p>
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</tr>
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<tr>
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<td valign="top" width="22"><img height="20" width="20" 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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<li>Fully integrated into the OS.</li>
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</p>
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</tr>
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<tr>
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<td valign="top" width="22"><img height="20" width="20" 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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<li>TCP/IP, UDP, ICMP, IGMPv2 (client) stacks.</li>
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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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<li>SLIP</li>
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</p>
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</tr>
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|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<p>
|
|
<li>Small footprint (based on uIP).</li>
|
|
</p>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<p>
|
|
<li>BSD compatible socket layer.</li>
|
|
</p>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<p>
|
|
<li>Networking utilities (DHCP server and client, SMTP client, TELNET client, FTP server and client, TFTP client, HTTP server and client). Inheritable TELNET sessions (as "controlling terminal")</li>
|
|
</p>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<p>
|
|
<li>
|
|
A NuttX port of Jeff Poskanzer's <a href="http://acme.com/software/thttpd">THTTPD</a> HTTP server
|
|
integrated with <a href="NuttXNxFlat.html">NXFLAT</a> to provide true, embedded CGI.
|
|
</li>
|
|
</p>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td valign="top" width="22"><img height="20" width="20" src="favicon.ico"></td>
|
|
<td bgcolor="#5eaee1">
|
|
<b>FLASH Support</b>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<p>
|
|
<li><i>MTD</i>-inspired interface for <i>M</i>emory <i>T</i>echnology <i>D</i>evices.</li>
|
|
</p>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<p>
|
|
<li><i>FTL</i>. Simple <i>F</i>lash <i>T</i>ranslation <i>L</i>ayer support file systems on FLASH.</li>
|
|
</p>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<p>
|
|
<li>NXFFS. the NuttX wear-leveling FLASH file system.</li>
|
|
</p>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<p>
|
|
<li>Support for SPI-based FLASH and FRAM devices.</li>
|
|
</p>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td valign="top" width="22"><img height="20" width="20" src="favicon.ico"></td>
|
|
<td bgcolor="#5eaee1">
|
|
<b>USB Host Support</b>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<p>
|
|
<li>USB host architecture for USB host controller drivers and device-dependent USB class drivers.</li>
|
|
</p>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<p>
|
|
<li>USB host controller drivers available for the NXP LPC17xx.</li>
|
|
</p>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<p>
|
|
<li>Device-dependent USB class drivers available for USB mass storage and HID keyboard.</li>
|
|
</p>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td valign="top" width="22"><img height="20" width="20" src="favicon.ico"></td>
|
|
<td bgcolor="#5eaee1">
|
|
<b>USB Device Support</b>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<p>
|
|
<li><i>Gadget</i>-like architecture for USB device controller drivers and device-dependent USB class drivers.</li>
|
|
</p>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<p>
|
|
<li>USB device controller drivers available for the NXP LPC17xx, LPC214x, LPC313x, STMicro STM32 and TI DM320.</li>
|
|
</p>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<p>
|
|
<li>Device-dependent USB class drivers available for USB serial (CDC/ACM and a PL2303 emulation), for USB mass storage, and for a composite CDC/ACM and mass storage device.</li>
|
|
</p>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<p>
|
|
<li>Built-in <a href="UsbTrace.html">USB trace</a> functionality for USB debug.</li>
|
|
</p>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td valign="top" width="22"><img height="20" width="20" src="favicon.ico"></td>
|
|
<td bgcolor="#5eaee1">
|
|
<b>Graphics Support</b>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<p>
|
|
<li>Framebuffer drivers.</li>
|
|
</p>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<p>
|
|
<li>LCD drivers for both parallel and SPI LCDs and OLEDs.</li>
|
|
</p>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<p>
|
|
<li>
|
|
NX: A graphics library, tiny windowing system and tiny font support that works with either framebuffer or LCD drivers.
|
|
Documented in the <a href="NXGraphicsSubsystem.html">NX Graphics Subsystem</a>
|
|
manual.
|
|
</li>
|
|
</p>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<p>
|
|
<li>Font management sub-system.</li>
|
|
</p>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<p>
|
|
<li>
|
|
<a href="NxWidgets.html">NxWidgets</a>: NXWidgets is library of graphic objects, or "widgets," (labels, buttons, text boxes, images, sliders, progress bars, etc.). NXWidgets is written in C++ and integrates seamlessly with the NuttX NX graphics and font management subsystems.
|
|
</li>
|
|
</p>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td valign="top" width="22"><img height="20" width="20" src="favicon.ico"></td>
|
|
<td bgcolor="#5eaee1">
|
|
<b>Input Devices</b>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<p>
|
|
<li>Touchscreen, USB keyboard, GPIO-based buttons and keypads. </li>
|
|
</p>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td valign="top" width="22"><img height="20" width="20" src="favicon.ico"></td>
|
|
<td bgcolor="#5eaee1">
|
|
<b>Analog Devices</b>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<p>
|
|
<li>Support for Analog-to-Digital conversion (ADC) and Digital-to-Analog conversion (DAC).</li>
|
|
</p>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td valign="top" width="22"><img height="20" width="20" src="favicon.ico"></td>
|
|
<td bgcolor="#5eaee1">
|
|
<b>Motor Control</b>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<p>
|
|
<li>Pulse width modulation (PWM) / Pulse count modulation.</li>
|
|
</p>
|
|
</tr>
|
|
</table></center>
|
|
|
|
<p>
|
|
<b>NuttX Add-Ons</b>.
|
|
The following packages are available to extend the basic NuttX feature set:
|
|
</p>
|
|
<center><table width="90%">
|
|
|
|
<tr>
|
|
<td valign="top" width="22"><img height="20" width="20" src="favicon.ico"></td>
|
|
<td bgcolor="#5eaee1">
|
|
<b>NuttShell (NSH)</b>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<p>
|
|
<li>A small, scalable, bash-like shell for NuttX with rich feature set and small footprint.
|
|
See the <a href="NuttShell.html">NuttShell User Guide</a>.</li>
|
|
</p>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td valign="top" width="22"><img height="20" width="20" src="favicon.ico"></td>
|
|
<td bgcolor="#5eaee1">
|
|
<b>Pascal Compiler with NuttX runtime P-Code interpreter add-on</b>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<p>
|
|
<li>The Pascal add-on is available for download from the
|
|
<a href="http://sourceforge.net/project/showfiles.php?group_id=189573">SourceForge</a>
|
|
website.</li>
|
|
</p>
|
|
</td>
|
|
</tr>
|
|
</table></center>
|
|
|
|
<p>
|
|
<b>Look at all those files and features... How can it be a tiny OS?</b>.
|
|
The NuttX feature list (above) is fairly long and if you look at the NuttX
|
|
source tree, you will see that there are hundreds of source files comprising
|
|
NuttX. How can NuttX be a tiny OS with all of that?
|
|
</p>
|
|
<center><table width="90%">
|
|
|
|
<tr>
|
|
<td valign="top" width="22"><img height="20" width="20" src="favicon.ico"></td>
|
|
<td bgcolor="#5eaee1">
|
|
<b>Lots of Features -- More can be smaller!</b>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<p>
|
|
The philosophy behind that NuttX is that lots of features are great... <i>BUT</i>
|
|
also that if you don't use those features, then you should not have to pay a penalty
|
|
for the unused features.
|
|
And, with NuttX, you don't! If you don't use a feature, it will not
|
|
be included in the final executable binary.
|
|
You only have to pay the penalty of increased footprint for the features
|
|
that you actually use.
|
|
</p>
|
|
<p>
|
|
Using a variety of technologies, NuttX can scale from the very tiny to
|
|
the moderate-size system. I have executed NuttX with some simple applications
|
|
in as little as 32Kb <i>total</i> memory (code and data).
|
|
On the other hand, typical, richly featured NuttX builds require more like 64Kb
|
|
(and if all of the features are used, this can push 100Kb).
|
|
</p>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td valign="top" width="22"><img height="20" width="20" src="favicon.ico"></td>
|
|
<td bgcolor="#5eaee1">
|
|
<b>Many, many files -- More really is smaller!</b>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<p>
|
|
One may be intimidated by the size NuttX source tree. There are hundreds of source files!
|
|
How can that be a tiny OS?
|
|
Actually, the large number of files is one of the tricks to keep NuttX small and
|
|
as scalable as possible.
|
|
Most files contain only a single function.
|
|
Sometimes just one tiny function with only a few lines of code.
|
|
Why?
|
|
</p>
|
|
<ul>
|
|
<li>
|
|
<b>Static Libraries</b>.
|
|
Because in the NuttX build processed, objects are compiled and saved into
|
|
<i>static libraries</i> (<i>archives</i>).
|
|
Then, when the file executable is linked, only the object files that are needed
|
|
are extracted from the archive and added to the final executable.
|
|
By having many, many tiny source files, you can assure that no code that you do
|
|
not execute is ever included in the link.
|
|
And by having many, tiny source files you have better granularity --
|
|
if you don't use that tiny function of even just a few lines of code, it will
|
|
not be included in the binary.
|
|
</li>
|
|
</ul>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td valign="top" width="22"><img height="20" width="20" src="favicon.ico"></td>
|
|
<td bgcolor="#5eaee1">
|
|
<b>Other Tricks</b>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<p>
|
|
As mentioned above, the use of many, tiny source files and linking from static
|
|
libraries keeps the size of NuttX down.
|
|
Other tricks used in NuttX include:
|
|
</p>
|
|
<ul>
|
|
<li>
|
|
<b>Configuration Files</b>.
|
|
Before you build NuttX, you must provide a configuration file that specifies
|
|
what features you plan to use and which features you do not.
|
|
This configuration file contains a long list of settings that control
|
|
what is built into NuttX and what is not.
|
|
There are hundreds of such settings
|
|
(see the <a href="NuttxPortingGuide.html#apndxconfigs">NuttX Porting Guide</a>
|
|
for a partial list that excludes platform specific settings).
|
|
These many, many configuration options allow NuttX to be highly tuned to
|
|
meet size requirements.
|
|
The downside to all of these configuration options is that it greatly
|
|
complicates the maintenance of NuttX -- but that is my problem, not yours.
|
|
</li>
|
|
<li>
|
|
<b>Weak Symbols</b>
|
|
The GNU toolchain supports <i>weak</i> symbols and these also help to keep
|
|
the size of NuttX down.
|
|
Weak symbols prevent object files from being drawn into the link even if they
|
|
are accessed from source code.
|
|
Careful use of weak symbols is another trick for keep unused code out of the
|
|
final binary.
|
|
</li>
|
|
</ul>
|
|
</td>
|
|
</tr>
|
|
|
|
</table></center>
|
|
|
|
|
|
<table width ="100%">
|
|
<tr bgcolor="#e4e4e4">
|
|
<td>
|
|
<a name="group"><h1>NuttX Discussion Group</h1></a>
|
|
</td>
|
|
</tr>
|
|
</table>
|
|
|
|
<p>
|
|
Most Nuttx-related discussion occurs on the <a href="http://tech.groups.yahoo.com/group/nuttx/" target="_top"><i>Yahoo!</i> NuttX group</a>.
|
|
You are cordially invited to <a href="http://groups.yahoo.com/group/nuttx/join" target="_top">join</a>.
|
|
I make a special effort to answer any questions and provide any help that I can.
|
|
</p>
|
|
|
|
|
|
<table width ="100%">
|
|
<tr bgcolor="#e4e4e4">
|
|
<td>
|
|
<a name="downloads"><h1>Downloads</h1></a>
|
|
</td>
|
|
</tr>
|
|
</table>
|
|
|
|
<h2>NuttX-6.16 Release Notes</h2>
|
|
<p>
|
|
The 83<sup>rd</sup> release of NuttX, Version 6.16, was made on March 10, 2012, and is available for download from the
|
|
<a href="http://sourceforge.net/projects/nuttx/files/">SourceForge</a> website.
|
|
Note that the release consists of two tarballs: <code>nuttx-6.16.tar.gz</code> and <code>apps-6.16.tar.gz</code>.
|
|
Both may be needed (see the top-level <code>nuttx/README.txt</code> file for build information)
|
|
The change log associated with the release is available <a href="#currentrelease">here</a>.
|
|
Unreleased changes after this release are available in SVN.
|
|
These unreleased changes are also listed <a href="#pendingchanges">here</a>.
|
|
</p>
|
|
|
|
<p><b>New Features</b>.
|
|
New or extended features in this release include:
|
|
</p>
|
|
<ul>
|
|
<li><b>ARMv7M Support</b>.
|
|
Includes new, streamlined Cortex-M exception handling provided by Mike Smith.
|
|
Context switching support for the Cortex-M4 FPU registers is now provided
|
|
(in both "lazy" and "non-lazy" modes)
|
|
</li>
|
|
<li><b>General Drivers</b>.
|
|
Added a generic "upper half" Quadrature Encoder driver.
|
|
The USB CDC/ACM serial driver can now be dynamically connnected or
|
|
disconnected from the host (programmatically or using NSH commands).
|
|
</li>
|
|
<li><b>STM32 Drivers</b>.
|
|
Added a "lower half" Quadrature Encoder driver.
|
|
Verified the STM32 F4 DMA driver; Added F4 DMA support to the existing STM32 SDIO driver.
|
|
</li>
|
|
<li><b>STM32 Board Support</b>.
|
|
Added support for the STM32 F2 family and for the STM3220G-EVAL board (contributed by Gary Teravskis).
|
|
Support is now included for C++ static constructors (verified using the Atollic toolchain).
|
|
Added support for the SRAM available on the STM3240G-EVAL board.
|
|
</li>
|
|
<li><b>PIC32MX Drivers</b>.
|
|
PIC32MX USB (device) driver is now functional.
|
|
The PIC32MX Ethernet driver not yet fully verified (and an unverified SPI driver is also available).
|
|
</li>
|
|
<li><b>Networking</b>.
|
|
Added a lower-level, thread-independent socket layer.
|
|
Parts of this layer were created in 6.15 to support the FTPD controlling terminal;
|
|
this support has been extended in order to support an NFS file system (not yet released).
|
|
</li>
|
|
<li><b>NuttShell (NSH)</b>.
|
|
NSH will now support a USB serial connection for the console (such as CDC/ACM).
|
|
This is useful in environments where there is no physical serial port on the board.
|
|
</li>
|
|
<li><b>Build System</b>.
|
|
Reorgnaization of networking header files.
|
|
</li>
|
|
</ul>
|
|
<p><b>Critical Bugfixes</b>.
|
|
The following bug fixes are considered critical:
|
|
</p>
|
|
<ul>
|
|
<li><b>Networking</b>.
|
|
Fixed a "leak" in the TCP/IP read-ahead buffering logic.
|
|
Corrected an error in TCP/IP sequence numbering/ACK logic which occurred when read-ahead buffering memory is exhausted.
|
|
</li>
|
|
<li><b>STM32 Drivers</b>.
|
|
Fixed an buffer sizing error in the STM32 Ethernet driver.
|
|
</li>
|
|
</ul>
|
|
<p><b>Additional Bugfixes</b>.
|
|
Other important bug fixes are listed below.
|
|
See the ChangeLog of a complete, detailed list of bug fixes.
|
|
</p>
|
|
<ul>
|
|
<li><b>Networking</b>.
|
|
Corrected <code>recv()</code>/<code>recvfrom()</code> return value.
|
|
Added logic to monitor for loss of connection after a new connection has been established via accept() (Contributed by Max Nekludov).
|
|
Added logic to <code>select()</code> to correctly handle POLLHUP (Contributed by Max Nekludov)
|
|
</li>
|
|
</ul>
|
|
<p>
|
|
See the <a href="#currentrelease">ChangeLog</a> for additional, detailed changes.
|
|
</p>
|
|
|
|
<table width ="100%">
|
|
<tr bgcolor="#e4e4e4">
|
|
<td>
|
|
<a name="platforms"><h1>Supported Platforms</h1></a>
|
|
</td>
|
|
</tr>
|
|
</table>
|
|
|
|
<p>
|
|
The short story (Number of ports follow in parentheses).
|
|
The state of the various ports vary from board-to-board.
|
|
Follow the links for the details:
|
|
</p>
|
|
<center><table width="90%">
|
|
<ul>
|
|
<tr>
|
|
<td bgcolor="#e4e4e4" valign="top">
|
|
<li><a href="#linuxusermode">Linux user mode simulation</a> (1)</li>
|
|
<li>ARM
|
|
<ul>
|
|
<li><a href="#arm7tdmi">ARM7TDMI</b></a> (4)</li>
|
|
<li><a href="#arm920t">ARM920T</a> (1) </li>
|
|
<li><a href="#arm926ejs">ARM926EJS</a> (3) </li>
|
|
<li><a href="#armcortexm3">ARM Cortex-M3</a> (14)</li>
|
|
<li><a href="#armcortexm4">ARM Cortex-M4</a> (4)</li>
|
|
</ul>
|
|
<li>Atmel AVR
|
|
<ul>
|
|
<li><a href="#atmelavr">Atmel 8-bit AVR</a> (3) </li>
|
|
<li><a href="#atmelavr32">Atmel AVR32</a> (1) </li>
|
|
</ul>
|
|
</li>
|
|
</td>
|
|
<td bgcolor="#e4e4e4" valign="top">
|
|
<li>Freescale <a href="#m68hcs12">M68HCS12</a> (2) </li>
|
|
<li>Intel
|
|
<ul>
|
|
<li><a href="#8052">Intel 8052 Microcontroller</a> (1)</li>
|
|
<li><a href="#80x86">Intel 80x86</a> (2)</li>
|
|
</ul>
|
|
</li>
|
|
<li>MicroChip <a href="#pic32mips">PIC32MX</a> (MIPS) (3)</li>
|
|
<li>Renesas/Hitachi:
|
|
<ul>
|
|
<li><a href="#superh">Renesas/Hitachi SuperH</a> (1/2)</li>
|
|
<li><a href="#m16c">Renesas M16C/26</a> (1/2)</li>
|
|
</ul>
|
|
</li>
|
|
</td>
|
|
<td bgcolor="#e4e4e4" valign="top">
|
|
<li>Zilog
|
|
<ul>
|
|
<li><a href="#zilogz16f">Zilog Z16F</a> (1)</li>
|
|
<li><a href="#zilogez80acclaim">Zilog eZ80 Acclaim!</a> (1)</li>
|
|
<li><a href="#zilogz8encore">Zilog Z8Encore!</a> (2)</li>
|
|
<li><a href="#zilogz80">Zilog Z80</a> (2)</li>
|
|
</ul>
|
|
</li>
|
|
</ul>
|
|
</tr>
|
|
</table></center>
|
|
|
|
<p>The details, caveats and fine print follow:</p>
|
|
|
|
<center><table width="90%">
|
|
<tr>
|
|
<td valign="top"><img height="20" width="20" src="favicon.ico"></td>
|
|
<td bgcolor="#5eaee1">
|
|
<a name="linuxusermode"><b>Linux User Mode</b>.</a>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<p>
|
|
A user-mode port of NuttX to the x86 Linux/Cygwin platform is available.
|
|
The purpose of this port is primarily to support OS feature development.
|
|
</p>
|
|
<ul>
|
|
<p>
|
|
<b>STATUS:</b>
|
|
Does not support interrupts but is otherwise fully functional.
|
|
</p>
|
|
</ul>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td valign="top"><img height="20" width="20" src="favicon.ico"></td>
|
|
<td bgcolor="#5eaee1">
|
|
<a name="arm7tdmi"><b>ARM7TDMI</b></a>.
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<p>
|
|
<b>TI TMS320C5471</b> (also called <b>C5471</b> or <b>TMS320DA180</b> or <b>DA180</b>).
|
|
NuttX operates on the ARM7 of this dual core processor.
|
|
This port uses the <a href="http://www.spectrumdigital.com/">Spectrum Digital</a>
|
|
evaluation board with a GNU arm-elf toolchain* under Linux or Cygwin.
|
|
</p>
|
|
<ul>
|
|
<p>
|
|
<b>STATUS:</b>
|
|
This port is complete, verified, and included in the initial NuttX release.
|
|
</p>
|
|
</ul>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td><hr></td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<p>
|
|
<b>NXP LPC214x</b>.
|
|
Support is provided for the NXP LPC214x family of processors. In particular,
|
|
support is provided for the mcu123.com lpc214x evaluation board (LPC2148).
|
|
This port also used the GNU arm-elf toolchain* under Linux or Cygwin.
|
|
</p>
|
|
<ul>
|
|
<p>
|
|
<b>STATUS:</b>
|
|
This port boots and passes the OS test (apps/examples/ostest).
|
|
The port is complete and verified. As of NuttX 0.3.17, the port includes:
|
|
timer interrupts, serial console, USB driver, and SPI-based MMC/SD card
|
|
support. A verified NuttShell (<a href="NuttShell.html">NSH</a>)
|
|
configuration is also available.
|
|
</p>
|
|
<p>
|
|
<b>Development Environments:</b>
|
|
1) Linux with native Linux GNU toolchain, 2) Cygwin with Cygwin GNU toolchain, or 3) Cygwin
|
|
with Windows native toolchain (CodeSourcery or devkitARM). A DIY toolchain for Linux
|
|
or Cygwin is provided by the NuttX
|
|
<a href="http://sourceforge.net/project/showfiles.php?group_id=189573&package_id=224585">buildroot</a>
|
|
package.
|
|
</p>
|
|
</ul>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td><hr></td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<p>
|
|
<b>NXP LPC2378</b>.
|
|
Support is provided for the NXP LPC2378 MCU. In particular,
|
|
support is provided for the Olimex-LPC2378 development board.
|
|
This port was contributed by Rommel Marcelo is was first released in NuttX-5.3.
|
|
This port also used the GNU arm-elf toolchain* under Linux or Cygwin.
|
|
</p>
|
|
<ul>
|
|
<p>
|
|
<b>STATUS:</b>
|
|
This port boots and passes the OS test (apps/examples/ostest) and includes a
|
|
working implementation of the NuttShell (<a href="NuttShell.html">NSH</a>).
|
|
The port is complete and verified.
|
|
As of NuttX 5.3, the port includes only basic timer interrupts and serial console support.
|
|
</p>
|
|
<p>
|
|
<b>Development Environments:</b> (Same as for the NXP LPC214x).
|
|
</p>
|
|
</ul>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td><hr></td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<p>
|
|
<b>STMicro STR71x</b>.
|
|
Support is provided for the STMicro STR71x family of processors. In particular,
|
|
support is provided for the Olimex STR-P711 evaluation board.
|
|
This port also used the GNU arm-elf toolchain* under Linux or Cygwin.
|
|
</p>
|
|
<ul>
|
|
<p>
|
|
<b>STATUS:</b>
|
|
Integration is complete on the basic port (boot logic, system time, serial console).
|
|
Two configurations have been verified: (1) The board boots and passes the OS test
|
|
with console output visible on UART0, and the NuttShell (<a href="NuttShell.html">NSH</a>)
|
|
is fully functional with interrupt driven serial console. An SPI driver is available
|
|
but only partially tested. Additional features are needed: USB driver, MMC integration,
|
|
to name two (the slot on the board appears to accept on MMC card dimensions; I have only
|
|
SD cards).
|
|
An SPI-based ENC29J60 Ethernet driver for add-on hardware is under development and
|
|
should be available in the NuttX 5.5 release.
|
|
</p>
|
|
<p>
|
|
<b>Development Environments:</b>
|
|
1) Linux with native Linux GNU toolchain, 2) Cygwin with Cygwin GNU toolchain, or 3) Cygwin
|
|
with Windows native toolchain (CodeSourcery or devkitARM). A DIY toolchain for Linux
|
|
or Cygwin is provided by the NuttX
|
|
<a href="http://sourceforge.net/project/showfiles.php?group_id=189573&package_id=224585">buildroot</a>
|
|
package.
|
|
</p>
|
|
</ul>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td valign="top"><img height="20" width="20" src="favicon.ico"></td>
|
|
<td bgcolor="#5eaee1">
|
|
<a name="arm920t"><b>ARM920T</b>.</a>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<p>
|
|
<b>Freescale MC9328MX1</b> or <b>i.MX1</b>.
|
|
This port uses the Freescale MX1ADS development board with a GNU arm-elf toolchain*
|
|
under either Linux or Cygwin.
|
|
</p>
|
|
<ul>
|
|
<p>
|
|
<b>STATUS:</b>
|
|
This port has stalled due to development tool issues.
|
|
Coding is complete on the basic port (timer, serial console, SPI).
|
|
</p>
|
|
</ul>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td valign="top"><img height="20" width="20" src="favicon.ico"></td>
|
|
<td bgcolor="#5eaee1">
|
|
<a name="arm926ejs"><b>ARM926EJS</b>.</a>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<p>
|
|
<b>TI TMS320DM320</b> (also called <b>DM320</b>).
|
|
NuttX operates on the ARM9 of this dual core processor.
|
|
This port uses the
|
|
<a href="http://wiki.neurostechnology.com/index.php/Developer_Welcome">Neuros OSD</a>
|
|
with a GNU arm-elf toolchain* under Linux or Cygwin.
|
|
The port was performed using the OSD v1.0, development board.
|
|
</p>
|
|
<ul>
|
|
<p>
|
|
<b>STATUS:</b>
|
|
The basic port (timer interrupts, serial ports, network, framebuffer, etc.) is complete.
|
|
All implemented features have been verified with the exception of the USB device-side
|
|
driver; that implementation is complete but untested.
|
|
</p>
|
|
</ul>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td><hr></td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<b>NXP <a href="http://ics.nxp.com/products/lpc3000/lpc313x.lpc314x.lpc315x/">LPC3131</a></b>.
|
|
The port for the NXP LPC3131 on the <a href="http://www.embeddedartists.com/products/kits/lpc3131_kit.php">Embedded Artists EA3131</a>
|
|
development board was first released in NuttX-5.1 with a GNU arm-elf or arm-eabi toolchain* under Linux or Cygwin
|
|
(but was not functional until NuttX-5.2).
|
|
</p>
|
|
<ul>
|
|
<p>
|
|
<b>STATUS:</b>
|
|
The basic EA3131 port is complete and verified in NuttX-5.2
|
|
This basic port includes basic boot-up, serial console, and timer interrupts.
|
|
This port was extended in NuttX 5.3 with a USB high speed driver contributed by David Hewson.
|
|
David also contributed I2C and SPI drivers plus several important LPC313x USB bug fixes
|
|
that appear in the NuttX 5.6 release.
|
|
This port has been verified using the NuttX OS test, USB serial and mass storage
|
|
tests and includes a working implementation of the NuttShell (<a href="NuttShell.html">NSH</a>).
|
|
</p>
|
|
<p>
|
|
Support for <a href="NuttXDemandPaging.html">on-demand paging</a> has been developed for the EA3131.
|
|
That support would all execute of a program in SPI FLASH by paging code sections out of SPI flash as needed.
|
|
However, as of this writing, I have not had the opportunity to verify this new feature.
|
|
</p>
|
|
</ul>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td><hr></td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<b>NXP <a href="http://ics.nxp.com/products/lpc3000/lpc313x.lpc314x.lpc315x/">LPC315x</a></b>.
|
|
Support for the NXP LPC315x family has been incorporated into the code base as of NuttX-6.4.
|
|
Support has added for the Embedded Artists EA3152 board in NuttX-6.11.
|
|
</p>
|
|
<ul>
|
|
<p>
|
|
<b>STATUS:</b>
|
|
Basic support is in place for both the LPC3152 MCU and the EA3152 board.
|
|
Verification of the port was deferred due to tool issues
|
|
However, because of the high degree of compatibility between the LPC313x and LPC315x family, it
|
|
is very likely that the support is in place (or at least very close).
|
|
At this point, verification of the EA3152 port has been overcome by events and
|
|
may never happen.
|
|
However, the port is available for anyone who may want to use it.
|
|
</p>
|
|
</ul>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td valign="top"><img height="20" width="20" src="favicon.ico"></td>
|
|
<td bgcolor="#5eaee1">
|
|
<a name="armcortexm3"><b>ARM Cortex-M3</b>.</a>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<p>
|
|
<b>TI Stellaris LM3S6432</b>.
|
|
This is a port of NuttX to the Stellaris RDK-S2E Reference Design Kit and the MDL-S2E Ethernet to Serial module
|
|
(contributed by Mike Smith).
|
|
</p>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td><hr></td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<p>
|
|
<b>Luminary/TI Stellaris LM3S6918</b>.
|
|
This port uses the <a href=" http://www.micromint.com/">Micromint</a> Eagle-100 development
|
|
board with a GNU arm-elf toolchain* under either Linux or Cygwin.
|
|
</p>
|
|
<ul>
|
|
<p>
|
|
<b>STATUS:</b>
|
|
The initial, release of this port was included in NuttX version 0.4.6.
|
|
The current port includes timer, serial console, Ethernet, SSI, and microSD support.
|
|
There are working configurations the NuttX OS test, to run the <a href="NuttShell.html">NuttShell
|
|
(NSH)</a>, the NuttX networking test, and the uIP web server.
|
|
</p>
|
|
<p>
|
|
<b>Development Environments:</b>
|
|
1) Linux with native Linux GNU toolchain, 2) Cygwin with Cygwin GNU toolchain, or 3) Cygwin
|
|
with Windows native toolchain (CodeSourcery or devkitARM). A DIY toolchain for Linux
|
|
or Cygwin is provided by the NuttX
|
|
<a href="http://sourceforge.net/project/showfiles.php?group_id=189573&package_id=224585">buildroot</a>
|
|
package.
|
|
</p>
|
|
</ul>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td><hr></td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<p>
|
|
<b>Luminary/TI Stellaris LM3S6965</b>.
|
|
This port uses the Stellaris LM3S6965 Ethernet Evalution Kit with a GNU arm-elf toolchain*
|
|
under either Linux or Cygwin.
|
|
</p>
|
|
<ul>
|
|
<p>
|
|
<b>STATUS:</b>
|
|
This port was released in NuttX 5.5.
|
|
Features are the same as with the Eagle-100 LM3S6918 described above.
|
|
The apps/examples/ostest configuration has been successfully verified and an
|
|
NSH configuration with Telnet support is available.
|
|
MMC/SD and Networking support was not been thoroughly verified:
|
|
Current development efforts are focused on porting the NuttX window system (NX)
|
|
to work with the Evaluation Kits OLED display.
|
|
</p>
|
|
<p><small>
|
|
<b>NOTE</b>: As it is configured now, you MUST have a network connected.
|
|
Otherwise, the NSH prompt will not come up because the Ethernet
|
|
driver is waiting for the network to come up.
|
|
</small></p>
|
|
<p>
|
|
<b>Development Environments:</b> See the Eagle-100 LM3S6918 above.
|
|
</p>
|
|
</ul>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td><hr></td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<p>
|
|
<b>Luminary/TI Stellaris LM3S8962</b>.
|
|
This port uses the Stellaris EKC-LM3S8962 Ethernet+CAN Evalution Kit with a GNU arm-elf toolchain*
|
|
under either Linux or Cygwin.
|
|
Contributed by Larry Arnold.
|
|
</p>
|
|
<ul>
|
|
<p>
|
|
<b>STATUS:</b>
|
|
This port was released in NuttX 5.10.
|
|
Features are the same as with the Eagle-100 LM3S6918 described above.
|
|
</p>
|
|
</ul>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td><hr></td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<p>
|
|
<b>Luminary/TI Stellaris LM3S9B96</b>.
|
|
Header file support was contributed by Tiago Maluta for this part.
|
|
However, no complete board support configuration is available as of this writing.
|
|
</p>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td><hr></td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<p>
|
|
<b>TI Stellaris LM3S6432S2E</b>.
|
|
This port uses Serial-to-Ethernet Reference Design Kit (<a href="http://www.ti.com/tool/rdk-s2e">RDK-S2E</a>)
|
|
and has similar support as for the other Stellaris family members.
|
|
Configurations are available for the OS test and for the NuttShell (NSH)
|
|
(see the <a href="http://www.nuttx.org/NuttShell.html">NSH User Guide</a>).
|
|
The NSH configuration including networking support with a Telnet NSH console.
|
|
This port was contributed by Mike Smith.
|
|
</p>
|
|
<ul>
|
|
<p>
|
|
<b>STATUS:</b>
|
|
This port was will be released in NuttX 6.14.
|
|
</p>
|
|
</ul>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td><hr></td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<p>
|
|
<b>STMicro STM32F103x</b>.
|
|
Support for four MCUs and three board configurations are available.
|
|
MCU support includes: STM32F103ZET6, STM32F103RET6, STM32F103VCT, and STM32F107VC.
|
|
Boards supported include:
|
|
</p>
|
|
<ol>
|
|
<li>
|
|
A port for the <a href=" http://www.st.com/">STMicro</a> STM3210E-EVAL development board that
|
|
features the STM32F103ZET6 MCU.
|
|
</li>
|
|
<li>
|
|
The ISOTEL NetClamps VSN V1.2 ready2go sensor network platform based on the
|
|
STMicro STM32F103RET6. Contributed by Uros Platise.
|
|
</li>
|
|
<li>
|
|
A port for the HY-Mini STM32v board. This board is based on the
|
|
STM32F103VCT chip. Contributed by Laurent Latil.
|
|
</li>
|
|
</ol>
|
|
<p>
|
|
These ports uses a GNU arm-elf toolchain* under either Linux or Cygwin (with native Windows GNU
|
|
tools or Cygwin-based GNU tools).
|
|
</p>
|
|
<ul>
|
|
<p>
|
|
<b>STATUS:</b>
|
|
</p>
|
|
<ul>
|
|
<li>
|
|
The basic STM32 port was released in NuttX version 0.4.12. The basic port includes boot-up
|
|
logic, interrupt driven serial console, and system timer interrupts.
|
|
The 0.4.13 release added support for SPI, serial FLASH, and USB device.;
|
|
The 4.14 release added support for buttons and SDIO-based MMC/SD and verifed DMA support.
|
|
Verified configurations are available for NuttX OS test, the NuttShell (NSH) example,
|
|
the USB serial device class, and the USB mass storage device class example.
|
|
</li>
|
|
<li>
|
|
Support for the NetClamps VSN was included in version 5.18 of NuttX.
|
|
Uros Platise added support for timers, RTC, I2C, FLASH, extended power management
|
|
and other features.
|
|
</li>
|
|
<li>
|
|
Additional drivers and configurations were added in NuttX 6.13 for the STM32 F1 and F4.
|
|
F1 compatible drivers include an Ethernet driver, ADC driver, DAC driver, PWM driver, and a CAN driver.
|
|
</li>
|
|
</ul>
|
|
<p>
|
|
<b>Development Environments:</b>
|
|
1) Linux with native Linux GNU toolchain, 2) Cygwin with Cygwin GNU toolchain, or 3) Cygwin
|
|
with Windows native toolchain (RIDE7, CodeSourcery or devkitARM). A DIY toolchain for Linux
|
|
or Cygwin is provided by the NuttX
|
|
<a href="http://sourceforge.net/project/showfiles.php?group_id=189573&package_id=224585">buildroot</a>
|
|
package.
|
|
</p>
|
|
</ul>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td><hr></td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<p>
|
|
<b>STMicro STM32F207IG</b>.
|
|
Support for the STMicro STM32140G-EVAL development board was contributed by Gary Teravskis and first released in NuttX-6.16.
|
|
</p>
|
|
<ul>
|
|
<b>STATUS:</b>
|
|
The peripherals of the STM32 F2 family are compatible with the STM32 F4 family.
|
|
See discussion of the STM3240G-EVAL board below for further information.
|
|
</ul>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td><hr></td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<p>
|
|
<b>Atmel AT91SAM3U</b>.
|
|
This port uses the <a href="http://www.atmel.com/">Atmel</a> SAM3U-EK
|
|
development board that features the AT91SAM3U4E MCU.
|
|
This port uses a GNU arm-elf or arm-eabi toolchain* under either Linux or Cygwin (with native Windows GNU
|
|
tools or Cygwin-based GNU tools).
|
|
</p>
|
|
<ul>
|
|
<p>
|
|
<b>STATUS:</b>
|
|
The basic SAM3U-EK port was released in NuttX version 5.1. The basic port includes boot-up
|
|
logic, interrupt driven serial console, and system timer interrupts.
|
|
That release passes the NuttX OS test and is proven to have a valid OS implementation.
|
|
A configuration to support the NuttShell is also included.
|
|
NuttX version 5.4 adds support for the HX8347 LCD on the SAM3U-EK board.
|
|
This LCD support includes an example using the
|
|
<a href=" http://www.nuttx.org/NXGraphicsSubsystem.html">NX graphics system</a>.
|
|
NuttX version 6.10 adds SPI support.
|
|
</p>
|
|
<p>
|
|
Subsequent NuttX releases will extend this port and add support for SDIO-based SD cards and
|
|
USB device (and possible LCD support).
|
|
These extensions may or may not happen soon as my plate is kind of full now.
|
|
</p>
|
|
<p>
|
|
<b>Development Environments:</b>
|
|
1) Linux with native Linux GNU toolchain, 2) Cygwin with Cygwin GNU toolchain, or 3) Cygwin
|
|
with Windows native toolchain (CodeSourcery or devkitARM). A DIY toolchain for Linux
|
|
or Cygwin is provided by the NuttX
|
|
<a href="http://sourceforge.net/projects/nuttx/files/buildroot/">buildroot</a>
|
|
package.
|
|
</p>
|
|
</ul>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td><hr></td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<p>
|
|
<b>NXP LPC1766 and LPC1768</b>.
|
|
Drivers are available for CAN, DAC, Ethernet, GPIO, GPIO interrupts, I2C, UARTs, SPI, SSP, USB host, and USB device.
|
|
Verified LPC17xx onfigurations are available for three boards.
|
|
<ul>
|
|
<li>
|
|
The Nucleus 2G board from <a href="http://www.2g-eng.com/">2G Engineering</a> (LPC1768),
|
|
</li>
|
|
<li>
|
|
The mbed board from <a href="http://mbed.org">mbed.org</a> (LPC1768, Contributed by Dave Marples), and
|
|
</li>
|
|
<li>
|
|
The LPC1766-STK board from <a href="http://www.olimex.com/">Olimex</a> (LPC1766).
|
|
</li>
|
|
<li>
|
|
The Embedded Artists base board with NXP LPCXpresso LPC1768.
|
|
</li>
|
|
</ul>
|
|
</p>
|
|
<p>
|
|
The Nucleus 2G board, the mbed board, and the LPCXpresso all feature the NXP LPC1768 MCU;
|
|
the Olimex LPC1766-STK board features an LPC1766.
|
|
All use a GNU arm-elf or arm-eabi toolchain* under either Linux or Cygwin (with native Windows GNU tools or Cygwin-based GNU tools).
|
|
</p>
|
|
<ul>
|
|
<p>
|
|
<b>STATUS:</b>
|
|
The following summarizes the features that has been developed and verified on individual LPC17xx-based boards.
|
|
These features should, however, be common and available for all LPC17xx-based boards.
|
|
</p>
|
|
<ol>
|
|
<li>
|
|
<p><b>Nucleus2G LPC1768</b></p>
|
|
<ul>
|
|
<li>
|
|
Some initial files for the LPC17xx family were released in NuttX 5.6, but
|
|
</li>
|
|
<li>
|
|
The first functional release for the NXP LPC1768/Nucleus2G occured with NuttX 5.7 with
|
|
Some additional enhancements through NuttX-5.9.
|
|
</li>
|
|
</ul>
|
|
</p>
|
|
<p>
|
|
That initial, 5.6, basic release included <i>timer</i> interrupts and a <i>serial console</i> and was
|
|
verified using the NuttX OS test (<code>apps/examples/ostest</code>).
|
|
Configurations available include include a verified NuttShell (NSH) configuration
|
|
(see the <a href="http://www.nuttx.org/NuttShell.html">NSH User Guide</a>).
|
|
The NSH configuration supports the Nucleus2G's microSD slot and additional configurations
|
|
are available to exercise the the USB serial and USB mass storage devices.
|
|
However, due to some technical reasons, neither the SPI nor the USB device drivers are fully verified.
|
|
(Although they have since been verfiied on other platforms; this needs to be revisited on the Nucleus2G).
|
|
</p>
|
|
</li>
|
|
<li>
|
|
<p><b>mbed LPC1768</b></p>
|
|
<ul>
|
|
<li>
|
|
Support for the mbed board was contributed by Dave Marples and released in NuttX-5.11.
|
|
</li>
|
|
</ul>
|
|
</p>
|
|
<p>
|
|
This port includes a NuttX OS test configuration (see <code>apps/examples/ostest</code>).
|
|
</p>
|
|
</li>
|
|
<li>
|
|
<p><b>Olimex LPC1766-STK</b></p>
|
|
<ul>
|
|
<li>
|
|
Support for that Olimex-LPC1766-STK board was added to NuttX 5.13.
|
|
</li>
|
|
<li>
|
|
The NuttX-5.14 release extended that support with an <i>Ethernet driver</i>.
|
|
</li>
|
|
<li>
|
|
The NuttX-5.15 release further extended the support with a functional <i>USB device driver</i> and <i>SPI-based micro-SD</i>.
|
|
</li>
|
|
<li>
|
|
The NuttX-5.16 release added a functional <i>USB host controller driver</i> and <i>USB host mass storage class driver</i>.
|
|
</li>
|
|
<li>
|
|
The NuttX-5.17 released added support for low-speed USB devicers, interrupt endpoints, and a <i>USB host HID keyboard class driver</i>.
|
|
</li>
|
|
</ul>
|
|
</p>
|
|
<ul><p>
|
|
Verified configurations are now available for the NuttX OS test,
|
|
for the NuttShell with networking and microSD support(NSH, see the <a href="ttp://www.nuttx.org/NuttShell.html">NSH User Guide</a>),
|
|
for the NuttX network test, for the <a href="http://acme.com/software/thttpd">THTTPD</a> webserver,
|
|
for USB serial deive and USB storage devices examples, and for the USB host HID keyboard driver.
|
|
Support for the USB host mass storage device can optionally be configured for the NSH example.
|
|
A driver for the <i>Nokia 6100 LCD</i> and an NX graphics configuration for the Olimex LPC1766-STK have been added.
|
|
However, neither the LCD driver nor the NX configuration have been verified as of the the NuttX-5.17 release.
|
|
</p></ul>
|
|
</li>
|
|
<li>
|
|
<p><b>Embedded Artists base board with NXP LPCXpresso LPC1768</b></p>
|
|
<ul>
|
|
An fully verified board configuration is included in NuttX-6.2.
|
|
The Code Red toolchain is supported under either Linux or Windows.
|
|
Verifed configurations include DHCPD, the NuttShell (NSH), NuttX graphis (NX), the NuttX OS test, THTTPD, and USB mass storage device.
|
|
</ul>
|
|
</li>
|
|
</ol>
|
|
<p>
|
|
<b>Development Environments:</b>
|
|
1) Linux with native Linux GNU toolchain, 2) Cygwin with Cygwin GNU toolchain, or 3) Cygwin
|
|
with Windows native toolchain (CodeSourcery devkitARM or Code Red). A DIY toolchain for Linux
|
|
or Cygwin is provided by the NuttX
|
|
<a href="http://sourceforge.net/projects/nuttx/files/buildroot/">buildroot</a>
|
|
package.
|
|
</p>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td valign="top"><img height="20" width="20" src="favicon.ico"></td>
|
|
<td bgcolor="#5eaee1">
|
|
<a name="armcortexm4"><b>ARM Cortex-M4</b>.</a>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<p>
|
|
<b>FreeScale Kinetics K40</b>.
|
|
This port uses the Freescale Kinetis KwikStik K40.
|
|
Refer to the <a href="http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=KWIKSTIK-K40">Freescale web site</a> for further information about this board.
|
|
The Kwikstik is used with the FreeScale Tower System (mostly just to provide a simple UART connection)
|
|
</p>
|
|
<ul>
|
|
<p>
|
|
<b>STATUS:</b>
|
|
The unverified KwikStik K40 first appeared in NuttX-6.8
|
|
As of this writing, the basic port is complete but I accidentally locked my board during the initial bringup.
|
|
Further development is stalled unless I learn how to unlock the device (or until I get another K40).
|
|
Additional work remaining includes, among other things: (1) complete the basic bring-up,
|
|
(2) bring up the NuttShell NSH, (3) develop support for the SDHC-based SD card,
|
|
(4) develop support for USB host and device, and (2) develop an LCD driver.
|
|
NOTE: Some of these remaining tasks are shared with the K60 work described below.
|
|
</p>
|
|
</ul>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td><hr></td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<p>
|
|
<b>FreeScale Kinetics K60</b>.
|
|
This port uses the Freescale Kinetis TWR-K60N512 tower system.
|
|
Refer to the <a href="http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=TWR-K60N512-KIT">Freescale web site</a> for further information about this board.
|
|
The TWR-K60N51 includes with the FreeScale Tower System which provides (among other things) a DBP UART connection.
|
|
</p>
|
|
<ul>
|
|
<p>
|
|
<b>STATUS:</b>
|
|
As of this writing, the basic port is complete and passes the NuttX OS test.
|
|
An additional, validated configuration exists for the NuttShell (NSH, see the
|
|
<a href="http://www.nuttx.org/NuttShell.html">NSH User Guide</a>).
|
|
This basic TWR-K60N512 first appeared in NuttX-6.8.
|
|
Ethernet and SD card (SDHC) drivers also exist:
|
|
The SDHC driver is partially integrated in to the NSH configuration but has some outstanding issues;
|
|
the Ethernet driver is completely untested.
|
|
Additional work remaining includes: (1) integrate the Ethernet and SDHC drivers, and (2) develop support for USB host and device.
|
|
NOTE: Most of these remaining tasks (excluding the Ethernet driver) are the same as the pending K40 tasks described above.
|
|
</p>
|
|
</ul>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td><hr></td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<p>
|
|
<b>STMicro STM3240G-EVAL</b>.
|
|
This port uses the Freescale STMicro STM3240G-EVAL board featuring the STM32F407IGH6 MCU.
|
|
Refer to the <a href="http://www.st.com/internet/evalboard/product/252216.jsp">STMicro web site</a> for further information about this board.
|
|
</p>
|
|
<ul>
|
|
<p>
|
|
<b>STATUS:</b>
|
|
As of this writing, the basic port is complete and first appeared in NuttX-6.12.
|
|
The port passes the NuttX OS test and includes a validated configuration for the NuttShell (NSH, see the
|
|
<a href="http://www.nuttx.org/NuttShell.html">NSH User Guide</a>) as well as several other configurations.
|
|
Additional drivers and configurations were added in NuttX 6.13-6.16.
|
|
Drivers include an Ethernet driver, ADC driver, DAC driver, PWM driver, CAN driver, F4 RTC driver, Quadrature Encoder, DMA, SDIO with DMA
|
|
(these should all be compatible with the STM32 F2 family and many should also be compatible with the STM32 F1 family as well).
|
|
The NuttX6.16 release also includes and logic for saving/restoring F4 FPU registers in context switches.
|
|
Networking intensions include support for Telnet NSH sessions and new configurations for DHPCD and the networking test (nettest).
|
|
A more complete port would include support for SDIO and USB OTG which are not available in NuttX 6.13.
|
|
</p>
|
|
</ul>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td><hr></td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<p>
|
|
<b>STMicro STM32F4-Discovery</b>.
|
|
This port uses the STMicro STM32F4-Discovery board featuring the STM32F407VGT6 MCU.
|
|
Refer to the <a href="http://www.st.com/internet/evalboard/product/252419.jsp">STMicro web site</a> for further information about this board.
|
|
</p>
|
|
<ul>
|
|
<p>
|
|
<b>STATUS:</b>
|
|
The basic port for the STM32F-Discovery was contributed by Mike Smith and was first released in NuttX-6.14.
|
|
</p>
|
|
</ul>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td><hr></td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<p>
|
|
<b>Development Environments:</b>
|
|
1) Linux with native Linux GNU toolchain, 2) Cygwin with Cygwin GNU Cortex-M3 or 4toolchain, or 3) Cygwin with Windows native GNU Cortex-M3 or M4 toolchain (CodeSourcery or devkitARM). A DIY toolchain for Linux or Cygwin is provided by the NuttX
|
|
<a href="http://sourceforge.net/projects/nuttx/files/buildroot/">buildroot</a> package.
|
|
I use FreeScale's <i>CodeWarrior</i> IDE only to work with the JTAG debugger built into the Kinetis boards.
|
|
</p>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td valign="top"><img height="20" width="20" src="favicon.ico"></td>
|
|
<td bgcolor="#5eaee1">
|
|
<a name="atmelavr"><b>Atmel AVR</b>.</a>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<p>
|
|
<b>SoC Robotics ATMega128</b>.
|
|
This port of NuttX to the Amber Web Server from <a href="http://www.soc-robotics.com/index.htm">SoC Robotics</a>
|
|
is partially completed.
|
|
The Amber Web Server is based on an Atmel ATMega128.
|
|
</p>
|
|
<ul>
|
|
<p>
|
|
<b>STATUS:</b>
|
|
Work on this port has stalled due to toolchain issues. Complete, but untested
|
|
code for this port appears in the NuttX 6.5 release.
|
|
</p>
|
|
</ul>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td><hr></td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<p>
|
|
<b>Micropendous 3 AT9USB64x</b> and <b>AT9USB6128x</b>.
|
|
This port of NuttX to the Opendous Micropendous 3 board. The Micropendous3 is
|
|
may be populated with an AT90USB646, 647, 1286, or 1287. I have only the AT90USB647
|
|
version for testing. This version have very limited memory resources: 64Kb of
|
|
FLASH and 4Kb of SRAM.
|
|
</p>
|
|
<ul>
|
|
<p>
|
|
<b>STATUS:</b>
|
|
The basic port was released in NuttX-6.5. This basic port consists only of
|
|
a "Hello, World!!" example that demonstrates initialization of the OS,
|
|
creation of a simple task, and serial console output.
|
|
</p>
|
|
</ul>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td><hr></td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<p>
|
|
<b>PJRC Teensy++ 2.0 AT9USB1286</b>.
|
|
This is a port of NuttX to the PJRC Teensy++ 2.0 board.
|
|
This board was developed by <a href="http://pjrc.com/teensy/">PJRC</a>.
|
|
The Teensy++ 2.0 is based on an Atmel AT90USB1286 MCU.
|
|
</p>
|
|
<ul>
|
|
<p>
|
|
<b>STATUS:</b>
|
|
The basic port was released in NuttX-6.5. This basic port consists of
|
|
a "Hello, World!!" example that demonstrates initialization of the OS,
|
|
creation of a simple task, and serial console output as well as a somewhat
|
|
simplified NuttShell (NSH) configuration (see the
|
|
<a href="http://www.nuttx.org/NuttShell.html">NSH User Guide</a>).
|
|
</p>
|
|
<p>
|
|
An SPI driver and a USB device driver exist for the AT90USB as well
|
|
as a USB mass storage configureation. However, this configuration is not
|
|
fully debugged as of the NuttX-6.5 release.
|
|
</p>
|
|
</ul>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td><hr></td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<p><b>AVR-Specific Issues</b>.
|
|
The basic AVR port is solid and biggest issue for using AVR is its tiny SRAM memory and its Harvard architecture.
|
|
Because of the Harvard architecture, constant data that resides to flash is inaccessible using "normal" memory reads and writes (only SRAM data can be accessed "normally").
|
|
Special AVR instructions are available for accessing data in FLASH, but these have not been integrated into the normal, general purpose OS.
|
|
</p>
|
|
<p>
|
|
Most NuttX test applications are console-oriented with lots of strings used for printf and debug output.
|
|
These strings are all stored in SRAM now due to these data accessing issues and even the smallest console-oriented applications can quickly fill a 4-8Kb memory.
|
|
So, in order for the AVR port to be useful, one of two things would need to be done:
|
|
</p>
|
|
<ol>
|
|
<li>
|
|
Don't use console applications that required lots of strings.
|
|
The basic AVR port is solid and your typical deeply embedded application should work fine.
|
|
Or,
|
|
</li>
|
|
<li>
|
|
Create a special version of printf that knows how to access strings that reside in FLASH (or EEPROM).
|
|
</li>
|
|
</ol>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<p>
|
|
<b>Development Environments:</b>
|
|
1) Linux with native Linux GNU toolchain, 2) Cygwin with Cygwin GNU toolchain, or 3) Cygwin with Windows native toolchain.
|
|
All testing, however, has been performed using the Nuttx DIY toolchain for Linux or Cygwin is provided by the NuttX
|
|
<a href="http://sourceforge.net/projects/nuttx/files/buildroot/">buildroot</a> package.
|
|
As a result, that toolchain is recommended.
|
|
</p>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td><br></td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td valign="top"><img height="20" width="20" src="favicon.ico"></td>
|
|
<td bgcolor="#5eaee1">
|
|
<a name="atmelavr32"><b>Atmel AVR32</b>.</a>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<p>
|
|
<b>AV32DEV1</b>.
|
|
This port uses the www.mcuzone.com AVRDEV1 board based on the Atmel AT32UC3B0256 MCU.
|
|
This port requires a special GNU avr32 toolchain available from atmel.com website.
|
|
This is a windows native toolchain and so can be used only under Cygwin on Windows.
|
|
</p>
|
|
<ul>
|
|
<p>
|
|
<b>STATUS:</b>
|
|
This port is has completed all basic development, but there is more that needs to be done.
|
|
All code is complete for the basic NuttX port including header files for all AT32UC3* peripherals.
|
|
The untested AVR32 code was present in the 5.12 release of NuttX.
|
|
Since then, the basic RTOS port has solidified:
|
|
</p>
|
|
<ul>
|
|
<li>
|
|
The port successfully passes the NuttX OS test (apps/examples/ostest).
|
|
</li>
|
|
<li>
|
|
A NuttShell (NSH) configuration is in place (see the <a href="http://www.nuttx.org/NuttShell.html">NSH User Guide</a>).
|
|
Testing of that configuration has been postponed (because it got bumped by the Olimex LPC1766-STK port).
|
|
Current Status: I think I have a hardware problem with my serial port setup.
|
|
There is a good chance that the NSH port is complete and functional, but I am not yet able to demonstrate that.
|
|
At present, I get nothing coming in the serial RXD line (probably because the pins are configured wrong or I have the MAX232 connected wrong).
|
|
</li>
|
|
</ul>
|
|
<p>
|
|
The basic, port (including the verified apps/examples/ostest configuration) was be released in NuttX-5.13.
|
|
A complete port will include drivers for additional AVR32 UC3 devices -- like SPI and USB --- and will be available in a later release,
|
|
time permitting.
|
|
</p>
|
|
</ul>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td valign="top"><img height="20" width="20" src="favicon.ico"></td>
|
|
<td bgcolor="#5eaee1">
|
|
<a name="m68hcs12"><b>Freescale M68HCS12</b>.</a>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<p>
|
|
<b>MC9S12NE64</b>.
|
|
Support for the MC9S12NE64 MCU and two boards are included:
|
|
</p>
|
|
<ul>
|
|
<li>
|
|
The Freescale DEMO9S12NE64 Evaluation Board, and
|
|
</li>
|
|
<li>
|
|
The Future Electronics Group NE64 /PoE Badge board.
|
|
</li>
|
|
</ul>
|
|
<p>
|
|
Both use a GNU arm-elf toolchain* under Linux or Cygwin.
|
|
The NuttX <a href="http://sourceforge.net/projects/nuttx/files/buildroot/">buildroot</a> provides a properly patched GCC 3.4.4 toolchain that is highly optimized for the m9s12x family.
|
|
</p>
|
|
<ul>
|
|
<p>
|
|
<b>STATUS:</b>
|
|
Coding is complete for the MC9S12NE64 and for the NE64 Badge board.
|
|
However, testing has not yet begun due to issues with BDMs, Code Warrior, and
|
|
the paging in the build process.
|
|
Progress is slow, but I hope to see a fully verified MC9S12NE64 port in the near future.
|
|
</p>
|
|
</ul>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td valign="top"><img height="20" width="20" src="favicon.ico"></td>
|
|
<td bgcolor="#5eaee1">
|
|
<a name="8052"><b>Intel 8052 Microcontroller</b>.</a>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<p>
|
|
<b>PJRC 87C52 Development Board</b>.
|
|
This port uses the <a href="http://www.pjrc.com/">PJRC</a> 87C52 development system
|
|
and the <a href="http://sdcc.sourceforge.net/">SDCC</a> toolchain under Linux or Cygwin.
|
|
</p>
|
|
<ul>
|
|
<p>
|
|
<b>STATUS:</b>
|
|
This port is complete but not stable with timer interrupts enabled.
|
|
There seems to be some issue when the stack pointer enters into the indirect IRAM
|
|
address space during interrupt handling.
|
|
This architecture has not been built in some time will likely have some compilation
|
|
problems because of SDCC compiler differences.
|
|
</p>
|
|
</ul>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td valign="top"><img height="20" width="20" src="favicon.ico"></td>
|
|
<td bgcolor="#5eaee1">
|
|
<a name="80x86"><b>Intel 80x86</b>.</a>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<p>
|
|
<b>QEMU/Bifferboard i486</b>.
|
|
This port uses the <a href="http://wiki.qemu.org/Main_Page">QEMU</a> i486 and the native
|
|
Linux, Cywgin, MinGW the GCC toolchain under Linux or Cygwin.
|
|
</p>
|
|
<ul>
|
|
<p>
|
|
<b>STATUS:</b>
|
|
The basic port was code-complete in NuttX-5.19 and verifed in NuttX-6.0.
|
|
The port was verified using the OS and NuttShell (NSH) examples under QEMU.
|
|
The port is reported to be functional on the <a href="http://bifferos.bizhat.com">Bifferboard</a> as well.
|
|
This is a great, stable starting point for anyone interest in fleshing out the x86 port!
|
|
</p>
|
|
</ul>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td><hr></td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<p>
|
|
<b>RGMP</b>.
|
|
RGMP stands for RTOS and GPOS on Multi-Processor.
|
|
RGMP is a project for running GPOS and RTOS simultaneously on multi-processor platforms
|
|
You can port your favorite RTOS to RGMP together with an unmodified Linux to form a hybrid operating system.
|
|
This makes your application able to use both RTOS and GPOS features.
|
|
</p>
|
|
<p>
|
|
See the <a href="http://rgmp.sourceforge.net/wiki/index.php/Main_Page">RGMP Wiki</a> for further information about RGMP.
|
|
</p>
|
|
<ul>
|
|
<p>
|
|
<b>STATUS:</b>
|
|
This initial port of NuttX to RGMP was provided in NuttX-6.3.
|
|
This initial RGP port provides only minimal driver support and does not use the native NuttX interrupt system.
|
|
This is a great, stable starting point for anyone interest in working with NuttX under RGMP!
|
|
</p>
|
|
</ul>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td valign="top"><img height="20" width="20" src="favicon.ico"></td>
|
|
<td bgcolor="#5eaee1">
|
|
<a name="pic32mips"><b>MicroChip PIC32 (MIPS)</b>.</a>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<p>
|
|
<b>PIC32MX460F512L</b>.
|
|
This port is for the PIC32MX board from PCB Logic Design Co. and used the PIC32MX460F512L.
|
|
The board is a very simple -- little more than a carrier for the PIC32 MCU plus voltage regulation, debug interface, and an OTG connector.
|
|
</p>
|
|
<ul>
|
|
<p>
|
|
<b>STATUS:</b>
|
|
The basic port is code complete and fully verified in NuttX 6.13.
|
|
Available configurations include the OS test and the NuttShell (NSH - see the <a href="http://www.nuttx.org/NuttShell.html">NSH User Guide</a>).
|
|
</p>
|
|
</ul>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td><hr></td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<p>
|
|
<b>PIC32MX440F512H</b>.
|
|
This port uses the "Advanced USB Storage Demo Board," Model DB-DP11215, from <a href="http://www.sureelectronics.net">Sure Electronics</a>.
|
|
This board features the MicroChip PIC32MX440F512H.
|
|
See the <a href="http://www.sureelectronics.net/goods.php?id=1168">Sure website</a> for further information about the DB-DP11215 board.
|
|
(I believe that that the DB-DP11215 may be obsoleted now but replaced with the very similar, DB-DP11212.
|
|
The DB-DP11212 board differs, I believe, only in its serial port configuration.)
|
|
</p>
|
|
<ul>
|
|
<p>
|
|
<b>STATUS:</b>
|
|
This NuttX port is code complete and has considerable test testing.
|
|
The port for this board was completed in NuttX 6.11, but still required a few bug fixes before it will be ready for prime time.
|
|
The fully verified port first appeared in NuttX 6.13.
|
|
Available configurations include the OS test and the NuttShell (NSH - see the <a href="http://www.nuttx.org/NuttShell.html">NSH User Guide</a>).
|
|
An untested USB device-side driver is available in the source tree.
|
|
A more complete port would include support of the USB OTG port and of the LCD display on this board.
|
|
Those drivers are not yet available as of this writing.
|
|
</p>
|
|
</ul>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td><hr></td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<p>
|
|
<b>PIC32MX795F512L</b>.
|
|
This port uses the Microchip PIC32 Ethernet Starter Kit (DM320004) with the Expansion I/O board.
|
|
See the <a href="http://ww.microchip.com">Microchip website</a> for further information.
|
|
</p>
|
|
<ul>
|
|
<p>
|
|
<b>STATUS:</b>
|
|
This port was started and then shelved for some time until I received the Expansion I/O board.
|
|
The basic Starter Kit (even with the Multimedia Expansion Board, MEB, DM320005)) has no serial port and most NuttX test configurations depend heavily on console output.
|
|
</p>
|
|
<p>
|
|
Verified configurations for the OS test and the NuttShel (NSH) appeared in NuttX-6.16.
|
|
Board support includes a verified USB (device-side) driver.
|
|
Also included are a a partially verified Ethernet driver and an unverifed SPI driver.
|
|
Stay tuned for updates.
|
|
</p>
|
|
</ul>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td><hr></td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<p>
|
|
<b>Development Environment:</b>
|
|
These ports uses the <i>LITE</i> version of the PIC32MX toolchain available
|
|
for download from the <a href="http://www.microchip.com">MicroChip</a> website.
|
|
</p>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td><br></td>
|
|
</tr>
|
|
<tr>
|
|
<td valign="top"><img height="20" width="20" src="favicon.ico"></td>
|
|
<td bgcolor="#5eaee1">
|
|
<a name="superh"><b>Renesas/Hitachi SuperH</b>.</a>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<p>
|
|
<b>SH-1 SH7032</b>.
|
|
This port uses the Hitachi SH-1 Low-Cost Evaluation Board (SH1_LCEVB1), US7032EVB,
|
|
with a GNU arm-elf toolchain* under Linux or Cygwin.
|
|
</p>
|
|
<ul>
|
|
<p>
|
|
<b>STATUS:</b>
|
|
This port is available as of release 0.3.18 of NuttX. The port is basically complete
|
|
and many examples run correctly. However, there are remaining instabilities that
|
|
make the port un-usable. The nature of these is not understood; the behavior is
|
|
that certain SH-1 instructions stop working as advertised. This could be a silicon
|
|
problem, some pipeline issue that is not handled properly by the gcc 3.4.5 toolchain
|
|
(which has very limit SH-1 support to begin with), or perhaps with the CMON debugger.
|
|
At any rate, I have exhausted all of the energy that I am willing to put into this cool
|
|
old processor for the time being.
|
|
</p>
|
|
</ul>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td valign="top"><img height="20" width="20" src="favicon.ico"></td>
|
|
<td bgcolor="#5eaee1">
|
|
<a name="m16c"><b>Renesas M16C/26</b>.</a>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<p>
|
|
<b>Renesas M16C/26 Microncontroller</b>.
|
|
This port uses the Renesas SKP16C26 Starter kit and the GNU M32C toolchain.
|
|
The development environment is either Linux or Cygwin under WinXP.
|
|
</p>
|
|
<ul>
|
|
<p>
|
|
<b>STATUS:</b>
|
|
Initial source files released in nuttx-0.4.2.
|
|
At this point, the port has not been integrated; the target cannot be built
|
|
because the GNU <code>m16c-elf-ld</code> link fails with the following message:
|
|
</p>
|
|
<ul>
|
|
<code>m32c-elf-ld: BFD (GNU Binutils) 2.19 assertion fail /home/Owner/projects/nuttx/buildroot/toolchain_build_m32c/binutils-2.19/bfd/elf32-m32c.c:482</code>
|
|
</ul>
|
|
<p>Where the reference line is:</p>
|
|
<ul><pre>
|
|
/* If the symbol is out of range for a 16-bit address,
|
|
we must have allocated a plt entry. */
|
|
BFD_ASSERT (*plt_offset != (bfd_vma) -1);
|
|
</pre></ul>
|
|
<p>
|
|
No workaround is known at this time. This is a show stopper for M16C for
|
|
the time being.
|
|
</p>
|
|
</ul>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td valign="top"><img height="20" width="20" src="favicon.ico"></td>
|
|
<td bgcolor="#5eaee1">
|
|
<a name="zilogz16f"><b>Zilog Z16F</b>.</a>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<p>
|
|
<b>Zilog z16f Microncontroller</b>.
|
|
This port use the Zilog z16f2800100zcog development kit and the Zilog
|
|
ZDS-II Windows command line tools.
|
|
The development environment is Cygwin under WinXP.
|
|
</p>
|
|
<ul>
|
|
<p>
|
|
<b>STATUS:</b>
|
|
The initial release of support for the z16f was made available in NuttX version 0.3.7.
|
|
</p>
|
|
</ul>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td valign="top"><img height="20" width="20" src="favicon.ico"></td>
|
|
<td bgcolor="#5eaee1">
|
|
<a name="zilogez80acclaim"><b>Zilog eZ80 Acclaim!</b>.</a>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<p>
|
|
<b>Zilog eZ80Acclaim! Microncontroller</b>.
|
|
There are two eZ80Acclaim! ports:
|
|
</p>
|
|
<ul>
|
|
<li>One uses the ZiLOG ez80f0910200kitg development kit, and
|
|
<li>The other uses the ZiLOG ez80f0910200zcog-d development kit.
|
|
</ul>
|
|
<p>
|
|
Both boards are based on the eZ80F091 part and both use the Zilog ZDS-II
|
|
Windows command line tools.
|
|
The development environment is Cygwin under WinXP.
|
|
</p>
|
|
<ul>
|
|
<p>
|
|
<b>STATUS:</b>
|
|
Integration and testing of NuttX on the ZiLOG ez80f0910200zcog-d is complete.
|
|
The first integrated version was released in NuttX version 0.4.2 (with important early bugfixes
|
|
in 0.4.3 and 0.4.4).
|
|
As of this writing, that port provides basic board support with a serial console, SPI, and eZ80F91 EMAC driver.
|
|
</p>
|
|
</ul>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td valign="top"><img height="20" width="20" src="favicon.ico"></td>
|
|
<td bgcolor="#5eaee1">
|
|
<a name="zilogz8encore"><b>Zilog Z8Encore!</b>.</a>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<p>
|
|
<b>Zilog Z8Encore! Microncontroller</b>.
|
|
This port uses the either:
|
|
</p>
|
|
<ul>
|
|
<li>Zilog z8encore000zco development kit, Z8F6403 part, or</li>
|
|
<li>Zilog z8f64200100kit development kit, Z8F6423 part</li>
|
|
</ul>
|
|
<p>
|
|
and the Zilog ZDS-II Windows command line tools.
|
|
The development environment is Cygwin under WinXP.
|
|
</p>
|
|
<ul>
|
|
<p>
|
|
<b>STATUS:</b>
|
|
This release has been verified only on the ZiLOG ZDS-II Z8Encore! chip simulation
|
|
as of nuttx-0.3.9.
|
|
</p>
|
|
<ul>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td valign="top"><img height="20" width="20" src="favicon.ico"></td>
|
|
<td bgcolor="#5eaee1">
|
|
<a name="zilogz80"><b>Zilog Z80</b>.</a>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<p>
|
|
<b>Z80 Instruction Set Simulator</b>.
|
|
This port uses the <a href="http://sdcc.sourceforge.net/">SDCC</a> toolchain
|
|
under Linux or Cygwin (verified using version 2.6.0).
|
|
This port has been verified using only a Z80 instruction simulator.
|
|
That simulator can be found in the NuttX SVN
|
|
<a href="http://nuttx.svn.sourceforge.net/viewvc/nuttx/trunk/misc/sims/z80sim/">here</a>.
|
|
</p>
|
|
<ul>
|
|
<p>
|
|
<b>STATUS:</b>
|
|
This port is complete and stable to the extent that it can be tested
|
|
using an instruction set simulator.
|
|
</p>
|
|
<ul>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td><hr></td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<p>
|
|
<b>XTRS: TRS-80 Model I/III/4/4P Emulator for Unix</b>.
|
|
A very similar Z80 port is available for <a href="http://www.tim-mann.org/xtrs.html">XTRS</a>,
|
|
the TRS-80 Model I/III/4/4P Emulator for Unix.
|
|
That port also uses the <a href="http://sdcc.sourceforge.net/">SDCC</a> toolchain
|
|
under Linux or Cygwin (verified using version 2.6.0).
|
|
</p>
|
|
<ul>
|
|
<p>
|
|
<b>STATUS:</b>
|
|
Basically the same as for the Z80 instruction set simulator.
|
|
This port was contributed by Jacques Pelletier.
|
|
</p>
|
|
<ul>
|
|
</td>
|
|
</tr>
|
|
</table></center>
|
|
|
|
<blockquote>* A highly modified <a href="http://buildroot.uclibc.org/">buildroot</a>
|
|
is available that may be used to build a NuttX-compatible ELF toolchain under
|
|
Linux or Cygwin. Configurations are available in that buildroot to support ARM, Cortex-M3,
|
|
avr, m68k, m68hc11, m68hc12, m9s12, blackfin, m32c, h8, and SuperH ports.</blockquote>
|
|
|
|
<table width ="100%">
|
|
<tr bgcolor="#e4e4e4">
|
|
<td>
|
|
<a name="environments"><h1>Development Environments</h1></a>
|
|
</td>
|
|
</tr>
|
|
</table>
|
|
|
|
<center><table width="90%">
|
|
<tr>
|
|
<td valign="top"><img height="20" width="20" src="favicon.ico"></td>
|
|
<td bgcolor="#5eaee1">
|
|
<b>Linux + GNU <code>make</code> + GCC/binutils</b>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<p>
|
|
The is the most natural development environment for NuttX.
|
|
Any version of the GCC/binutils toolchain may be used.
|
|
There is a highly modified <a href="http://buildroot.uclibc.org/">buildroot</a>
|
|
available for download from the
|
|
<a href="http://sourceforge.net/project/showfiles.php?group_id=189573">NuttX SourceForge</a>
|
|
page.
|
|
This download may be used to build a NuttX-compatible ELF toolchain under Linux or Cygwin.
|
|
That toolchain will support ARM, m68k, m68hc11, m68hc12, and SuperH ports.
|
|
The buildroot SVN may be accessed in the
|
|
<a href="http://nuttx.svn.sourceforge.net/viewvc/nuttx/trunk/misc/buildroot/">NuttX SVN</a>.
|
|
</p>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td valign="top"><img height="20" width="20" src="favicon.ico"></td>
|
|
<td bgcolor="#5eaee1">
|
|
<b>Linux + GNU <code>make</code> + SDCC</b>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<p>
|
|
Also very usable is the Linux environment using the
|
|
<a href="http://sdcc.sourceforge.net/">SDCC</a> compiler.
|
|
The SDCC compiler provides support for the 8051/2, z80, hc08, and other microcontrollers.
|
|
The SDCC-based logic is less well exercised and you will likely find some compilation
|
|
issues if you use parts of NuttX with SDCC that have not been well-tested.
|
|
</p>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td valign="top"><img height="20" width="20" src="favicon.ico"></td>
|
|
<td bgcolor="#5eaee1">
|
|
<b>Cygwin + GNU <code>make</code> + GCC/binutils</b>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<p>
|
|
This combination works well too.
|
|
It works just as well as the native Linux environment except
|
|
that compilation and build times are a little longer.
|
|
The custom NuttX <a href="http://sourceforge.net/projects/nuttx/files/buildroot/">buildroot</a> referenced above may be build in
|
|
the Cygwin environment as well.
|
|
</p>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td valign="top"><img height="20" width="20" src="favicon.ico"></td>
|
|
<td bgcolor="#5eaee1">
|
|
<b>Cygwin + GNU <code>make</code> + SDCC</b>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<p>
|
|
I have never tried this combination, but it would probably work just fine.
|
|
</p>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td valign="top"><img height="20" width="20" src="favicon.ico"></td>
|
|
<td bgcolor="#5eaee1">
|
|
<b>Cygwin + GNU <code>make</code> + Windows Native Toolchain</b>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<p>
|
|
This is a tougher environment.
|
|
In this case, the Windows native toolchain is unaware of the
|
|
Cygwin <i>sandbox</i> and, instead, operates in the native Windows environment.
|
|
The primary difficulties with this are:
|
|
</p>
|
|
<ul>
|
|
<li>
|
|
<b>Paths</b>.
|
|
Full paths for the native toolchain must follow Windows standards.
|
|
For example, the path <code>/home/my\ name/nuttx/include</code> my have to be
|
|
converted to something like <code>'C:\cygwin\home\my name\nuttx\include'</code>
|
|
to be usable by the toolchain.
|
|
</li>
|
|
<p>
|
|
Fortunately, this conversion is done simply using the <code>cygpath</code> utility.
|
|
</p>
|
|
<li>
|
|
<b>Symbolic Links</b>
|
|
NuttX depends on symbolic links to install platform-specific directories in the build system.
|
|
On Linux, true symbolic links are used.
|
|
On Cygwin, emulated symbolic links are used.
|
|
Unfortunately, for native Windows applications that operate outside of the
|
|
Cygwin <i>sandbox</i>, these symbolic links cannot be used.
|
|
</li>
|
|
<p>
|
|
The NuttX make system works around this limitation by copying the platform
|
|
specific directories in place.
|
|
These copied directories make work a little more complex, but otherwise work well.
|
|
</p>
|
|
<p><small>
|
|
NOTE: In this environment, it should be possible to use the NTFS <code>mklink</code> command to create links.
|
|
This should only require a minor modification to the build scripts (see <code>tools/winlink.sh</code> script).
|
|
</small></p>
|
|
<li>
|
|
<b>Dependencies</b>
|
|
NuttX uses the GCC compiler's <code>-M</code> option to generate make dependencies. These
|
|
dependencies are retained in files called <code>Make.deps</code> throughout the system.
|
|
For compilers other than GCC, there is no support for making dependencies in this way.
|
|
For Windows native GCC compilers, the generated dependencies are windows paths and not
|
|
directly usable in the Cygwin make. By default, dependencies are surpressed for these
|
|
compilers as well.
|
|
</li>
|
|
<p><small>
|
|
NOTE: dependencies are suppress by setting the make variable <code>MKDEPS</code> to point
|
|
to the do-nothing dependency script, <code>tools/mknulldeps.sh</code>.
|
|
Dependencies can be enabled for the Windows native GCC compilers by setting
|
|
<code>MKDEPS</code> to point to <code>$(TOPDIR)/tools/mkdeps.sh --winpaths $(TOPDIR)</code>.
|
|
</small></p>
|
|
</ul>
|
|
<p>
|
|
<b>Supported Windows Native Toolchains</b>.
|
|
At present, only the Zilog Z16F, z8Encore, and eZ80Acclaim ports use a non-GCC native Windows
|
|
toolchain(the Zilog ZDS-II toolchain).
|
|
Support for Windows native GCC toolchains (CodeSourcery and devkitARM) is currently implemented
|
|
for the NXP LPC214x, STMicro STR71x, and Luminary LMS6918 ARM ports.
|
|
(but could easily be extended to any other GCC-based platform with a small effort).
|
|
</p>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td valign="top"><img height="20" width="20" src="favicon.ico"></td>
|
|
<td bgcolor="#5eaee1">
|
|
<b>Wine + GNU <code>make</code> + Windows Native Toolchain</b>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<p>
|
|
I've never tried this one, but I off the following reported by an ez80 user using the ZiLOG ZDS-II Windows-native toolchain:
|
|
</p>
|
|
<blockquote>
|
|
<p>
|
|
"I've installed ZDS-II 5.1.1 (IDE for ez80-based boards) on wine (windows emulator for UNIX) and to my surprise, not many changes were needed to make SVN snapshot of Nuttx buildable...
|
|
I've tried nsh profile and build process completed successfully.
|
|
One remark is necessary: Nuttx makefiles for ez80 are referencing <code>cygpath</code> utility.
|
|
Wine provides similar thing called <code>winepath</code> which is compatible and offers compatible syntax.
|
|
To use that, <code>winepath</code> (which itself is a shell script) has to be copied as <code>cygpath</code> somewhere in <code>$PATH</code>, and edited as in following patch:
|
|
</p>
|
|
<ul><pre>
|
|
# diff -u `which winepath` `which cygpath`
|
|
--- /usr/bin/winepath 2011-05-02 16:00:40.000000000 +0200
|
|
+++ /usr/bin/cygpath 2011-06-22 20:57:27.199351255 +0200
|
|
@@ -20,7 +20,7 @@
|
|
#
|
|
|
|
# determine the app Winelib library name
|
|
-appname=`basename "$0" .exe`.exe
|
|
+appname=winepath.exe
|
|
|
|
# first try explicit WINELOADER
|
|
if [ -x "$WINELOADER" ]; then exec "$WINELOADER" "$appname" "$@"; fi
|
|
</pre></ul>
|
|
<p>
|
|
"Better solution would be replacing all <code>cygpath</code> references in <code>Makefiles </code> with <code>$(CONVPATH)</code> (or <code>${CONVPATH}</code> in shell scripts) and setting <code>CONVPATH</code> to <code>cygpath</code> or <code>winepath</code> regarding to currently used environment.
|
|
</p>
|
|
</blockquote>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td valign="top"><img height="20" width="20" src="favicon.ico"></td>
|
|
<td bgcolor="#5eaee1">
|
|
<b>Other Environments?
|
|
Windows Native <code>make</code> + Windows Native Toolchain?</b>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td><br></td>
|
|
<td>
|
|
<p>
|
|
<b>Environment Dependencies</b>.
|
|
The primary environmental dependency of NuttX are (1) GNU make,
|
|
(2) bash scripting, and (3) Linux utilities (such as cat, sed, etc.).
|
|
If you have other platforms that support GNU make or make
|
|
utilities that are compatible with GNU make, then it is very
|
|
likely that NuttX would work in that environment as well (with some
|
|
porting effort). If GNU make is not supported, then some significant
|
|
modification of the Make system would be required.
|
|
</p>
|
|
<p>
|
|
<b>GNUWin32</b>.
|
|
For example, with suitable make system changes, it should be possible to
|
|
use native GNU tools (such as those from
|
|
<a href="http://sourceforge.net/projects/gnuwin32/">GNUWin32</a>)
|
|
to build NuttX.
|
|
However, that environment has not been used as of this writing.
|
|
</p>
|
|
<p><small>
|
|
NOTE: One of the members on the <a href="http://tech.groups.yahoo.com/group/nuttx/">NuttX forum</a>
|
|
reported that they successful built NuttX using such a GNUWin32-based, Windows native environment.
|
|
They reported that the only necessary change was to the use the NTFS mklink command to create links
|
|
(see <code>tools/winlink.sh</code> script).
|
|
</small></p>
|
|
</td>
|
|
</tr>
|
|
</table></center>
|
|
|
|
<table width ="100%">
|
|
<tr bgcolor="#e4e4e4">
|
|
<td>
|
|
<a name="footprint"><h1>Memory Footprint</h1></a>
|
|
</td>
|
|
</tr>
|
|
</table>
|
|
|
|
<ul>
|
|
<p><b>C5471 (ARM7)</b>
|
|
The build for this ARM7 target that includes most of the OS features and
|
|
a broad range of OS tests. The size of this executable as given by the
|
|
Linux <tt>size</tt> command is (3/9/07):
|
|
</p>
|
|
<pre>
|
|
text data bss dec hex filename
|
|
53272 428 3568 57268 dfb4 nuttx
|
|
</pre>
|
|
<p><b>DM320 (ARM9)</b>
|
|
This build for the ARM9 target includes a significant subset of OS
|
|
features, a filesystem, Ethernet driver, full TCP/IP, UDP and (minimal)
|
|
ICMP stacks (via uIP) and a small network test application: (11/8/07,
|
|
configuration netconfig, apps/examples/nettest)
|
|
</p>
|
|
<pre>
|
|
text data bss dec hex filename
|
|
49472 296 3972 53740 d1ec nuttx
|
|
</pre>
|
|
<p>
|
|
Another build for the ARM9 target includes a minimal OS feature
|
|
set, Ethernet driver, full TCP/IP and (minimal) ICMP stacks, and
|
|
a small webserver: (11/20/07, configuration uipconfig, apps/examples/uip)
|
|
</p>
|
|
<pre>
|
|
text data bss dec hex filename
|
|
52040 72 4148 56260 dbc4 nuttx
|
|
</pre>
|
|
<p><b>87C52</b>
|
|
A reduced functionality OS test for the 8052 target requires only
|
|
about 18-19Kb:
|
|
</p>
|
|
<pre>
|
|
Stack starts at: 0x21 (sp set to 0x20) with 223 bytes available.
|
|
|
|
Other memory:
|
|
Name Start End Size Max
|
|
---------------- -------- -------- -------- --------
|
|
PAGED EXT. RAM 0 256
|
|
EXTERNAL RAM 0x0100 0x02fd 510 7936
|
|
ROM/EPROM/FLASH 0x2100 0x6e55 19798 24384
|
|
</pre>
|
|
</ul>
|
|
|
|
<table width ="100%">
|
|
<tr bgcolor="#e4e4e4">
|
|
<td>
|
|
<a name="licensing"><h1>Licensing</h1></a>
|
|
</td>
|
|
</tr>
|
|
</table>
|
|
|
|
<ul>
|
|
<p>
|
|
NuttX is available under the highly permissive
|
|
<a href="http://en.wikipedia.org/wiki/BSD_license">BSD license</a>.
|
|
Other than some fine print that you agree to respect the copyright
|
|
you should feel absolutely free to use NuttX in any environment and
|
|
without any concern for jeopardizing any proprietary software that
|
|
you may link with it.
|
|
</p>
|
|
</ul>
|
|
|
|
<table width ="100%">
|
|
<tr bgcolor="#e4e4e4">
|
|
<td>
|
|
<a name="history"><h1>Release History</h1></a>
|
|
</td>
|
|
</tr>
|
|
</table>
|
|
|
|
<ul>
|
|
<p>
|
|
ChangeLog snapshots associated with the previous, current, and future release are available below.
|
|
</p>
|
|
</ul>
|
|
|
|
<center><table width ="80%">
|
|
<tr>
|
|
<td valign="top" width="22"><img height="20" width="20" src="favicon.ico"></td>
|
|
<td>
|
|
<a href="ChangeLog.txt">Change logs for previous NuttX releases</a><br>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td valign="top" width="22"><img height="20" width="20" src="favicon.ico"></td>
|
|
<td>
|
|
<a href="#currentrelease">ChangeLog for the current NuttX releases</a><br>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td valign="top" width="22"><img height="20" width="20" src="favicon.ico"></td>
|
|
<td>
|
|
<a href="#pendingchanges">Unreleased changes</a>
|
|
</td>
|
|
</tr>
|
|
</table></center>
|
|
|
|
<table width ="100%">
|
|
<tr bgcolor="#e4e4e4">
|
|
<td>
|
|
<a name="currentrelease">ChangeLog for the Current Release</a>
|
|
</td>
|
|
</tr>
|
|
</table>
|
|
|
|
<ul><pre>
|
|
nuttx-6.16 2012-03-10 Gregory Nutt <gnutt@nuttx.org>
|
|
|
|
* drivers/sensors/qencoder.c and include/nuttx/sensors/qencoder.h: Add an
|
|
implementation for a quadrature encoder upper half driver.
|
|
* arch/arm/src/stm32/stm32_qencoder.c/.h: Add a initial implementation of
|
|
a lower-half quadrature encoder driver for the STM32. On initial check-in,
|
|
this is little more than a "skeleton" file.
|
|
* Various files: CAN ISO-11783 support contributed by Gary Teravskis.
|
|
* net/recv.c and net/recvfrom.c: Correct a bug in return value: The the peer
|
|
gracefully closes the connections, needs to return zero and not ENOTCONN.
|
|
* arch/arm/src/stm32/stm32_eth.c: Fix an error in the STM32 ethernet driver.
|
|
The received buffer size must be two bytes larger to account for the two byte
|
|
checksum that is appended to the packet. Otherwise, the last two bytes of
|
|
real data in the packet will get clobbered.
|
|
* arch/arm/src/stm32f40xx_dma.c: The STM32 F4 DMA has (finally) been verified
|
|
* arch/arm/src/stm32_sdio.c: STM32 F4 SDIO DMA is now supported
|
|
* configs/stm3240g-eval/nsh/defconfig: This configuration now supports SDIO
|
|
with DMA (see configs/stm3240g-eval/README.txt for some issues).
|
|
* arch/arm/src/armv7-m/up_vectors.S and arch/arm/src/armv7-m/up_vectors.S: New,
|
|
streamlined Cortex-M exception handling (with FPU supported). Contributed byh
|
|
Mike Smith
|
|
* net/accept.c, connect.c,and net_monitor.c: Correct an error in the accept
|
|
logic. After a new connection is made via accept(), monitoring for losses
|
|
of TCP connection must be set up (just as with connect()). The new file
|
|
net_monitor.c holds the common TCP connection monitoring logic used by both
|
|
the accecpt() and connect() logic. Contributed by Max Nekludov.
|
|
* net/recvfrom.c and net/uip/uip_tcpcallback.c: Fix a leak in the TCP
|
|
read-ahead logic. This is a *critical* bug fix!
|
|
* net/uip/uip_tcpinput.c: Correct an error in the TCP stack. It was
|
|
incrementing the received sequence number BEFORE determining if the
|
|
incoming data could be handled. If the data was dropped (usually because
|
|
there is insufficient buffering space), then no ACK will be sent and the
|
|
sequence number will be wrong. The end consequence of the bad sequence
|
|
number was that the when the dropped packet was re-transmitted, it was
|
|
was ignored because its sequence number looked wrong. Fix was, obviously,
|
|
to only increment the recevied sequence number if the TCP data was
|
|
accepted.
|
|
* configs/stm3240g-eval, configs/stm32f40discovery, and arch/*/src/Makefile:
|
|
Add changes to support building with the Atollic "Lite" toolchain.
|
|
* fs/fs_select.c: Correct select(), in the case of loss of network
|
|
connection (POLLHUP), select() must report a read-ready event. This
|
|
is how the standard select() interface is supposed to work: In the case
|
|
of loss-of-connection, select() reports read-ready. The next time you
|
|
read from the socket, you detect the end-of-connection event. Change
|
|
submitted by Max Nekludov.
|
|
* arch/arm/src/armv7-m/up_fpu.S and arch/arm/src/stm32/stm32_vectors.S: Fix
|
|
lazy FPU register saving with CONFIG_ARCH_FPU is set in the configuration.
|
|
* arch/arm/src/armv7-m: Lazy saving of floating point registers on context
|
|
switches now seems to be functional.
|
|
* net/uip/uip_tcpinput.c: Fix a TCP protocol error reported by Max Nekludov.
|
|
* configs/stm3240g-eval, configs/stm32f40discovery: Add changes to support
|
|
building with the Atollic "Pro" toolchain.
|
|
* Makefile: Use the more common .hex extension for Intel hex files instead of
|
|
more precise .ihx extension. This change has ripple effects to many build-
|
|
related scripts and programs and could cause some short-term problems.
|
|
* configs/stm3240g-eval/, arch/arm/src/stm32/up_allocateheap.c: Add support
|
|
for the 16-mbit SRAM on-board the STM3240G-EVAL board.
|
|
* drivers/usbdev/cdcacm.c and include/nuttx/usbdev/cdcacm.h: The CDC/ACM
|
|
driver can now be dynamically connected and disconnected from the host
|
|
under software control.
|
|
* include/nuttx/arch.h, configs/stm3240g-eval/src/up_cxxinitialize.c, and
|
|
configs/stm3240g-eval/src/up_cxxinitialize.c: Add support for C++ static
|
|
initializers.
|
|
* net/setsockopt.c, net/getsockopt.c, net/bind.c, net/socket.c: Add more
|
|
low level, thread-independent socket interfaces for use within the OS.
|
|
Some of these are currently used by the FTP controlling terminal. More will
|
|
be used to support the NFS file system currenly underwork.
|
|
* include/nuttx/net/: Major re-organization of networking headerf files.
|
|
Moved all non-standard, NuttX-specific header files from include/net and
|
|
include/nuttx into include/nuttx/net.
|
|
* arch/mips/src/pic32mx/pic32mx_usbdev.c: The PIC32 USB driver now appears to
|
|
be fully functional.
|
|
* configs/sure-pic32mx/usbnsh and configs/sure-pic32mx/src: Add support for
|
|
NSH using only USB serial I/O to support the console. This is useful on
|
|
devices that have USB, but no serial port.
|
|
* arch/mips/src/pic32mx/pic32mx_spi.c: Add a PIC32 SPI driver. Initial
|
|
checkin is primitive, incomplete (lacks interrupt logic), and untested.
|
|
* configs/pic32-startkit/nsh: Completed verification of the PIC32 Ethernet
|
|
Starter Kit port. Added and verified the NuttShell (NSH) on the PIC32
|
|
Ethernet Starter Kit. I can now (finally) claim to have complete the
|
|
basic port to this board.
|
|
* configs/pic32-startkit/nsh/up_usbdev, up_nsh.c, and up_usbterm.c: Verified
|
|
the USB (device) driver on the PIC32 Ethernet Starter Kit.
|
|
* arch/mips/src/pic32mx/pic32mx_ethernet.c: Verifed the PIC32 Ethernet
|
|
driver on the PIC32 Starter Kit. Status: It is occasionally functional
|
|
but no stable enough for use.
|
|
* arch/arm/include/stm32, arch/arm/src/stm32: Add general support for
|
|
the STM32 F2 family. Contributed by Gary Teravskis,
|
|
* configs/stm3220g-eval: Add support for the STMicro STM3220G-EVAL board.
|
|
Contributed by Gary Teravskis,
|
|
|
|
apps-6.16 2012-03-10 Gregory Nutt <gnutt@nuttx.org>
|
|
|
|
* apps/examples/qencoder: Add a quadrature driver test.
|
|
* apps/examples/ostest/fpu.c: Add a test to verify that FPU registers
|
|
are properly saved and restored on context switches.
|
|
* apps/system/readline/readline.c: readline() will now treat either a
|
|
backspace or a DEL character as a backspace (i.e., deleting the character
|
|
to the left of the cursor). This makes NSH less dependent on particular
|
|
keyboard mappings of the Backspace key. Submitted by Mike Smith.
|
|
* apps/examples/cdcacm: An example that illustrates how the CDC/ACM driver
|
|
may to connected and disconnected through software control.
|
|
* apps/examples/nsh/nsh_main.c: If available, call up_cxxinitialize() to
|
|
initialize all statically defined C++ classes.
|
|
* apps/nshlib: Now supports a USB serial device for NSH console I/O. This
|
|
allows NSH to be used on boards that have USB but no serial connectors.
|
|
|
|
NxWidgets-1.0 2012-03-22 Gregory Nutt <gnutt@nuttx.org>
|
|
|
|
* This is the initial release of NxWidgets, the C++ graphics package for NuttX.
|
|
|
|
pascal-1.0 2011-05-15 Gregory Nutt <gnutt@nuttx.org>
|
|
|
|
* nuttx/: The Pascal add-on module now installs and builds under the
|
|
apps/interpreters directory. This means that the pascal-2.1 module is
|
|
incompatible with will all releases of NuttX prior to nuttx-6.0 where the
|
|
apps/ module was introduced.
|
|
|
|
buildroot-1.10 2011-05-06 <gnutt@nuttx.org>
|
|
|
|
* Add patch submitted by Dimiter Georgiev to work around problems in building
|
|
GDB 6.8 with versions of Cygwin > 1.7.
|
|
* configs/i486-defconfig-4.3.3 - Builds an i486 cross development toolchain
|
|
using gcc 4.3.3. Why wouldyou want such a thing? On Linux, of course,
|
|
such a thing is not needed because you can use the installed GCC to build
|
|
i486 ELF binaries. But that will not work under Cygwin! The Cygwin
|
|
toolchain (and probably MinGW), build DOS MZ format executables (i.e.,
|
|
.exe files). That is probably not usable for most NuttX targets.
|
|
Instead, you should use this i486-elf-gcc to generate true ELF binaries
|
|
under Cygwin.
|
|
* Makefile - Alter copy arguments to avoid permissions problems when
|
|
copying NuttX header files.
|
|
* toolchain/nxflat/nxflat.mk and Makefile - Fix include paths.
|
|
* toolchain/gcc/3.3.6 - Added a patch to fixed compilation error on Ubuntu
|
|
9.10.
|
|
* toolchain/nxflat/Makefile - Correct static library link order.
|
|
* configs/arm920t-defconfig-4.3.3 - Enable support for NXFLAT tools.
|
|
* toolchain/binutils/2.21 and toolchain/gcc/4.5.2 - Add support for GCC
|
|
4.5.2 with binutils 2.21.
|
|
* configs/arm920t-eabi-defconfig-4.5.2 - Add a configuration to build a
|
|
GCC 4.5.2 EABI ARM toolchain for the ARM920t.
|
|
</pre></ul>
|
|
|
|
<table width ="100%">
|
|
<tr bgcolor="#e4e4e4">
|
|
<td>
|
|
<a name="pendingchanges">Unreleased Changes</a>
|
|
</td>
|
|
</tr>
|
|
</table>
|
|
|
|
<ul>
|
|
<li><b>nuttx-6.17</b>.
|
|
The ChangeLog for the not-yet-released version 6.17 is available at the bottom of the ChangeLog file that can viewed in the <a href="http://nuttx.svn.sourceforge.net/viewvc/nuttx/trunk/nuttx/ChangeLog?view=log">SourceForge SVN</a>.
|
|
</li>
|
|
<li><b>apps-6.17</b>.
|
|
The ChangeLog for the not-yet-released version 6.17 is available at the bottom of the ChangeLog file that can viewed in the <a href="http://nuttx.svn.sourceforge.net/viewvc/nuttx/trunk/apps/ChangeLog.txt?view=log">SourceForge SVN</a>.
|
|
</li>
|
|
<li><b>NxWidgets-1.1</b>.
|
|
The ChangeLog for the not-yet-released version 1.1 is available at the bottom of the ChangeLog file that can viewed in the <a href="http://nuttx.svn.sourceforge.net/viewvc/nuttx/trunk/NxWidgets/ChangeLog?view=log">SourceForge SVN</a>.
|
|
</li>
|
|
<li><b>pascal-1.1</b>.
|
|
The ChangeLog for the not-yet-released version 1.1 is available at the bottom of the ChangeLog file that can viewed in the <a href="http://nuttx.svn.sourceforge.net/viewvc/nuttx/trunk/misc/pascal/ChangeLog?view=log">SourceForge SVN</a>.
|
|
</li>
|
|
<li><b>buildroot-1.11</b>.
|
|
The ChangeLog for the not-yet-released version 1.11 is available at the bottom of the ChangeLog file that can viewed in the <a href="http://nuttx.svn.sourceforge.net/viewvc/nuttx/trunk/misc/buildroot/ChangeLog?view=log">SourceForge SVN</a>.
|
|
</li>
|
|
</ul>
|
|
|
|
<table width ="100%">
|
|
<tr bgcolor="#e4e4e4">
|
|
<td>
|
|
<a name="TODO"><h1>Bugs, Issues, <i>Things-To-Do</i></h1></a>
|
|
</td>
|
|
</tr>
|
|
</table>
|
|
|
|
<ul>
|
|
<p>
|
|
The current list of NuttX <i>Things-To-Do</i> in SVN <a href="http://nuttx.svn.sourceforge.net/viewvc/nuttx/trunk/nuttx/TODO?view=log">here</a>.
|
|
A snapshot of the <i>To-Do</i> list associated with the current release are available <a href="TODO.txt">here</a>.
|
|
</p>
|
|
</ul>
|
|
<table width ="100%">
|
|
<tr bgcolor="#e4e4e4">
|
|
<td>
|
|
<a name="documentation"><h1>Other Documentation</h1></a>
|
|
</td>
|
|
</tr>
|
|
</table>
|
|
|
|
<ul><table>
|
|
<tr>
|
|
<td valign="top" width="22"><img height="20" width="20" src="favicon.ico"></td>
|
|
<td><a href="NuttXGettingStarted.html">Getting Started</a></td>
|
|
</tr>
|
|
<tr>
|
|
<td valign="top" width="22"><img height="20" width="20" src="favicon.ico"></td>
|
|
<td><a href="NuttxUserGuide.html">User Guide</a></td>
|
|
</tr>
|
|
<tr>
|
|
<td valign="top" width="22"><img height="20" width="20" src="favicon.ico"></td>
|
|
<td><a href="NuttxPortingGuide.html">Porting Guide</a></td>
|
|
</tr>
|
|
<tr>
|
|
<td valign="top" width="22"><img height="20" width="20" src="favicon.ico"></td>
|
|
<td><a href="NuttShell.html">NuttShell (NSH)</a></td>
|
|
</tr>
|
|
<tr>
|
|
<td valign="top" width="22"><img height="20" width="20" src="favicon.ico"></td>
|
|
<td><a href="NuttXNxFlat.html">NXFLAT</a> Binary Format</td>
|
|
</tr>
|
|
<tr>
|
|
<td valign="top" width="22"><img height="20" width="20" src="favicon.ico"></td>
|
|
<td><a href="NXGraphicsSubsystem.html">NX Graphics Subsystem</a></td>
|
|
</tr>
|
|
<tr>
|
|
<td valign="top" width="22"><img height="20" width="20" src="favicon.ico"></td>
|
|
<td><a href="NxWidgets.html">NxWidgets</a></td>
|
|
</tr>
|
|
<tr>
|
|
<td valign="top" width="22"><img height="20" width="20" src="favicon.ico"></td>
|
|
<td><a href="NuttXDemandPaging.html">Demand Paging</a></td>
|
|
</tr>
|
|
<tr>
|
|
<td valign="top" width="22"><img height="20" width="20" src="favicon.ico"></td>
|
|
<td><a href="README.html">NuttX README Files</a></td>
|
|
</tr>
|
|
<tr>
|
|
<td valign="top" width="22"><img height="20" width="20" src="favicon.ico"></td>
|
|
<td><a href="ChangeLog.txt">Change Log</a></td>
|
|
</tr>
|
|
<tr>
|
|
<td valign="top" width="22"><img height="20" width="20" src="favicon.ico"></td>
|
|
<td><a href="TODO.txt">To-Do List</a></td>
|
|
</tr>
|
|
<tr>
|
|
<td valign="top" width="22"><img height="20" width="20" src="favicon.ico"></td>
|
|
<td><a href="UsbTrace.html">USB Device Driver Tracing</a></td>
|
|
</tr>
|
|
</center></ul>
|
|
|
|
<small>
|
|
<table width ="100%">
|
|
<tr bgcolor="#e4e4e4">
|
|
<td>
|
|
<a name="trademarks"><h1>Trademarks</h1></a>
|
|
</td>
|
|
</tr>
|
|
</table>
|
|
<ul>
|
|
<li>ARM, ARM7 ARM7TDMI, ARM9, ARM920T, ARM926EJS Cortex-M3 are trademarks of Advanced RISC Machines, Limited.</li>
|
|
<li>Cygwin is a trademark of Red Hat, Incorporated.</li>
|
|
<li>Linux is a registered trademark of Linus Torvalds.</li>
|
|
<li>Eagle-100 is a trademark of <a href=" http://www.micromint.com/">Micromint USA, LLC</a>.
|
|
<li>LPC2148 is a trademark of NXP Semiconductors.</li>
|
|
<li>TI is a tradename of Texas Instruments Incorporated.</li>
|
|
<li>UNIX is a registered trademark of The Open Group.</li>
|
|
<li>VxWorks is a registered trademark of Wind River Systems, Incorporated.</li>
|
|
<li>ZDS, ZNEO, Z16F, Z80, and Zilog are a registered trademark of Zilog, Inc.</li>
|
|
</ul>
|
|
<p>
|
|
NOTE: NuttX is <i>not</i> licensed to use the POSIX trademark. NuttX uses the POSIX
|
|
standard as a development guideline only.
|
|
</p>
|
|
</small>
|
|
|
|
</body>
|
|
</html>
|
|
|