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      <td><big><big>ChibiOS/RT</big></big><br><br>Architecture - Reference Manual - Guides</td>
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<h1>ChibiOS/RT </h1>  </div>
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<div class="contents">
<h3 class="version">2.0.8 </h3><dl class="author"><dt><b>Author:</b></dt><dd>Giovanni Di Sirio (<a href="mailto:gdisirio@users.sourceforge.net">gdisirio@users.sourceforge.net</a>).</dd></dl>
<h2>Chibi ?</h2>
<p>I didn't want a serious name for this project. It is the Japanese word for small as in small child. So ChibiOS/RT  (<span class="t_nihongo_kanji" xml:lang="ja" lang="ja">&#12385;&#12403;</span>OS/RT)  means small Real Time Operating System. Source <a href="http://en.wikipedia.org/wiki/Chibi" target="_blank">Wikipedia</a>.</p>
<h2>Features</h2>
<ul>
<li>Free software, GPL3 licensed. Stable releases include a exception clause to the GPL.</li>
<li>Designed for realtime applications.</li>
<li>Easily portable.</li>
<li>Preemptive scheduling.</li>
<li>128 priority levels. Multiple threads at the same priority level allowed.</li>
<li>Round robin scheduling for threads at the same priority level.</li>
<li>Offers threads, virtual timers, semaphores, mutexes, condvars, event flags, messages, mailboxes, I/O queues.</li>
<li>No static setup at compile time, there is no need to configure a maximum number of all the above objects.</li>
<li>PC simulator target included, the development can be done on a PC under Linux or Windows.<br/>
 Timers, I/O channels and other HW resources are simulated in a guest OS process and the application code does not need to be aware of it.</li>
<li>No *need* for a memory allocator, all the kernel structures are static and declaratively allocated.</li>
<li>Optional, thread safe, Heap Allocator subsystem.</li>
<li>Optional, thread safe, Memory Pools Allocator subsystem.</li>
<li>Blocking and non blocking I/O channels with timeout and events generation capability.</li>
<li>Minimal system requirements: about 6KiB ROM with all options enabled and speed optimizations on. The size can shrink under 2KiB by disabling the the unused subsystems and optimizing for size.</li>
<li>Almost totally written in C with little ASM code required for ports.</li>
<li>Optional Hardware Abstraction Layer (HAL) with support for many device driver models and device driver implementations.</li>
</ul>
<h2>Related pages</h2>
<ul>
<li><a class="el" href="credits.html">Copyright and Credits</a></li>
<li><a class="el" href="lic_faq.html">License and F.A.Q.</a></li>
<li><a class="el" href="goals.html">Project Goals</a></li>
<li><a class="el" href="target.html">Application Range</a></li>
<li><a class="el" href="architecture.html">Architecture</a></li>
<li><a class="el" href="concepts.html">Kernel Concepts</a></li>
<li><a class="el" href="articles.html">Articles and Code Samples</a></li>
<li><a class="el" href="testsuite.html">Testing Strategy</a></li>
</ul>
</div>
<hr size="1"><address style="text-align: right;"><small>
Generated on Sun Nov 28 2010 14:09:48 for ChibiOS/RT by&nbsp;<a href="http://www.doxygen.org/index.html"><img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.7.1</small></address>
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Initial import 2010-08-10 03:11:02 +00:00			`<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">`
			`<html><head><meta http-equiv="Content-Type" content="text/html;charset=UTF-8">`
			`<title>ChibiOS/RT: ChibiOS/RT</title>`
			`<link href="custom.css" rel="stylesheet" type="text/css">`
			`<link href="tabs.css" rel="stylesheet" type="text/css">`
			`</head><body>`
			`<table style="text-align: center; width: 100%;" border="0"`
			`cellpadding="2" cellspacing="2">`
			`<tbody>`
			`<tr>`
			`<td style="width: 80px;"><img alt="ChibiOS/RT Logo" src="logo_small.png"></td>`
			`<td><big><big>ChibiOS/RT</big></big><br><br>Architecture - Reference Manual - Guides</td>`
			`<td style="width: 80px;"></td>`
			`</tr>`
			`</tbody>`
			`</table>`
			`<hr size="1">`
Imported ChibiOS/RT 2.0.6. 2010-11-22 05:53:37 +00:00			`<!-- Generated by Doxygen 1.7.1 -->`
Initial import 2010-08-10 03:11:02 +00:00			`<div class="navigation" id="top">`
			`<div class="tabs">`
Imported ChibiOS/RT 2.0.6. 2010-11-22 05:53:37 +00:00			`<ul class="tablist">`
Initial import 2010-08-10 03:11:02 +00:00			`<li class="current"><a href="main.html"><span>Main Page</span></a></li>`
			`<li><a href="modules.html"><span>Modules</span></a></li>`
			`<li><a href="annotated.html"><span>Data Structures</span></a></li>`
			`<li><a href="files.html"><span>Files</span></a></li>`
			`</ul>`
			`</div>`
			`</div>`
Imported ChibiOS/RT 2.0.6. 2010-11-22 05:53:37 +00:00			`<div class="header">`
			`<div class="headertitle">`
			`<h1>ChibiOS/RT </h1> </div>`
			`</div>`
Initial import 2010-08-10 03:11:02 +00:00			`<div class="contents">`
import ChibiOS 2.0.8 2010-11-30 04:54:43 +00:00			`<h3 class="version">2.0.8 </h3><dl class="author"><dt><b>Author:</b></dt><dd>Giovanni Di Sirio (<a href="mailto:gdisirio@users.sourceforge.net">gdisirio@users.sourceforge.net</a>).</dd></dl>`
Initial import 2010-08-10 03:11:02 +00:00			`<h2>Chibi ?</h2>`
			`<p>I didn't want a serious name for this project. It is the Japanese word for small as in small child. So ChibiOS/RT (<span class="t_nihongo_kanji" xml:lang="ja" lang="ja">ちび</span>OS/RT) means small Real Time Operating System. Source <a href="http://en.wikipedia.org/wiki/Chibi" target="_blank">Wikipedia</a>.</p>`
			`<h2>Features</h2>`
			`<ul>`
			`<li>Free software, GPL3 licensed. Stable releases include a exception clause to the GPL.</li>`
			`<li>Designed for realtime applications.</li>`
			`<li>Easily portable.</li>`
			`<li>Preemptive scheduling.</li>`
			`<li>128 priority levels. Multiple threads at the same priority level allowed.</li>`
			`<li>Round robin scheduling for threads at the same priority level.</li>`
			`<li>Offers threads, virtual timers, semaphores, mutexes, condvars, event flags, messages, mailboxes, I/O queues.</li>`
			`<li>No static setup at compile time, there is no need to configure a maximum number of all the above objects.</li>`
			`<li>PC simulator target included, the development can be done on a PC under Linux or Windows.<br/>`
			`Timers, I/O channels and other HW resources are simulated in a guest OS process and the application code does not need to be aware of it.</li>`
			`<li>No need for a memory allocator, all the kernel structures are static and declaratively allocated.</li>`
			`<li>Optional, thread safe, Heap Allocator subsystem.</li>`
			`<li>Optional, thread safe, Memory Pools Allocator subsystem.</li>`
			`<li>Blocking and non blocking I/O channels with timeout and events generation capability.</li>`
			`<li>Minimal system requirements: about 6KiB ROM with all options enabled and speed optimizations on. The size can shrink under 2KiB by disabling the the unused subsystems and optimizing for size.</li>`
			`<li>Almost totally written in C with little ASM code required for ports.</li>`
			`<li>Optional Hardware Abstraction Layer (HAL) with support for many device driver models and device driver implementations.</li>`
			`</ul>`
			`<h2>Related pages</h2>`
			`<ul>`
			`<li><a class="el" href="credits.html">Copyright and Credits</a></li>`
Imported ChibiOS/RT 2.0.6. 2010-11-22 05:53:37 +00:00			`<li><a class="el" href="lic_faq.html">License and F.A.Q.</a></li>`
Initial import 2010-08-10 03:11:02 +00:00			`<li><a class="el" href="goals.html">Project Goals</a></li>`
			`<li><a class="el" href="target.html">Application Range</a></li>`
			`<li><a class="el" href="architecture.html">Architecture</a></li>`
			`<li><a class="el" href="concepts.html">Kernel Concepts</a></li>`
			`<li><a class="el" href="articles.html">Articles and Code Samples</a></li>`
			`<li><a class="el" href="testsuite.html">Testing Strategy</a></li>`
			`</ul>`
			`</div>`
			`<hr size="1"><address style="text-align: right;"><small>`
import ChibiOS 2.0.8 2010-11-30 04:54:43 +00:00			`Generated on Sun Nov 28 2010 14:09:48 for ChibiOS/RT by <a href="http://www.doxygen.org/index.html"><img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.7.1</small></address>`
Initial import 2010-08-10 03:11:02 +00:00			`</body>`
			`</html>`