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+<!-- Copyright (C) 2003 Red Hat, Inc. -->
+<!-- This material may be distributed only subject to the terms -->
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+<!-- or later (the latest version is presently available at -->
+<!-- http://www.opencontent.org/openpub/). -->
+<!-- Distribution of the work or derivative of the work in any -->
+<!-- standard (paper) book form is prohibited unless prior -->
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+<HTML
+><HEAD
+><TITLE
+>Key Features</TITLE
+><meta name="MSSmartTagsPreventParsing" content="TRUE">
+<META
+NAME="GENERATOR"
+CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+
+"><LINK
+REL="HOME"
+TITLE="eCos User Guide"
+HREF="ecos-user-guide.html"><LINK
+REL="UP"
+TITLE="Introduction"
+HREF="user-guide-introduction.html"><LINK
+REL="PREVIOUS"
+TITLE="Introduction"
+HREF="user-guide-introduction.html"><LINK
+REL="NEXT"
+TITLE="eCos Overview"
+HREF="ecos-overview.html"></HEAD
+><BODY
+CLASS="CHAPTER"
+BGCOLOR="#FFFFFF"
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+VLINK="#840084"
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+CLASS="NAVHEADER"
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+WIDTH="100%"
+BORDER="0"
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+><TR
+><TH
+COLSPAN="3"
+ALIGN="center"
+>eCos User Guide</TH
+></TR
+><TR
+><TD
+WIDTH="10%"
+ALIGN="left"
+VALIGN="bottom"
+><A
+HREF="user-guide-introduction.html"
+ACCESSKEY="P"
+>Prev</A
+></TD
+><TD
+WIDTH="80%"
+ALIGN="center"
+VALIGN="bottom"
+></TD
+><TD
+WIDTH="10%"
+ALIGN="right"
+VALIGN="bottom"
+><A
+HREF="ecos-overview.html"
+ACCESSKEY="N"
+>Next</A
+></TD
+></TR
+></TABLE
+><HR
+ALIGN="LEFT"
+WIDTH="100%"></DIV
+><DIV
+CLASS="CHAPTER"
+><H1
+><A
+NAME="ECOS-KEY-FEATURES">Chapter 1. Key Features</H1
+><P
+></P
+><UL
+><LI
+><P
+><SPAN
+CLASS="PRODUCTNAME"
+>eCos</SPAN
+> is distributed under the GPL
+license with an exception which permits proprietary application code
+to be linked with <SPAN
+CLASS="PRODUCTNAME"
+>eCos</SPAN
+> without itself being
+forced to be released under the GPL. It is also royalty and buyout
+free.</P
+></LI
+><LI
+><P
+>As an Open Source project, <SPAN
+CLASS="PRODUCTNAME"
+>eCos</SPAN
+> is
+under constant improvement, with an active developer community, based
+around the <SPAN
+CLASS="PRODUCTNAME"
+>eCos</SPAN
+> web site at <A
+HREF="http://sources.redhat.com/ecos/"
+TARGET="_top"
+>http://sources.redhat.com/ecos/</A
+>.</P
+></LI
+><LI
+><P
+>Powerful GUI-based configuration system allowing both large and
+fine grained configuration of <SPAN
+CLASS="PRODUCTNAME"
+>eCos</SPAN
+>. This
+allows the functionality of <SPAN
+CLASS="PRODUCTNAME"
+>eCos</SPAN
+> to be
+customized to the exact requirements of the application.</P
+></LI
+><LI
+><P
+>Full-featured, flexible, configurable, real time embedded
+kernel. The kernel provides thread scheduling, synchronization,
+timer, and communication primitives. It handles hardware resources
+such as interrupts, exceptions, memory and caches.</P
+></LI
+><LI
+><P
+>The Hardware Abstraction Layer (HAL) hides the specific features
+of each supported CPU and platform, so that the kernel and other
+run-time components can be implemented in a portable fashion.</P
+></LI
+><LI
+><P
+>Support for µITRON and POSIX Application Programmer
+Interfaces (APIs). It also includes a fully featured, thread-safe ISO
+standard C library and math library.</P
+></LI
+><LI
+><P
+>Support for a wide variety of devices including many serial
+devices, ethernet controllers and FLASH memories. There is also
+support for PCMCIA, USB and PCI interconnects.</P
+></LI
+><LI
+><P
+>A fully featured TCP/IP stack implementing IP, IPv6, ICMP, UDP
+and TCP over ethernet. Support for SNMP, HTTP, TFTP and FTP are also
+present.</P
+></LI
+><LI
+><P
+>The RedBoot ROM monitor is an application that uses the
+<SPAN
+CLASS="PRODUCTNAME"
+>eCos</SPAN
+> HAL for portability. It provides
+serial and ethernet based booting and debug services during
+development.</P
+></LI
+><LI
+><P
+>Many components include test programs that validate the
+components behaviour. These can be used both to check that hardware is
+functioning correctly, and as examples of
+<SPAN
+CLASS="PRODUCTNAME"
+>eCos</SPAN
+> usage.</P
+></LI
+><LI
+><P
+><SPAN
+CLASS="PRODUCTNAME"
+>eCos</SPAN
+> documentation included this User
+Guide, the Reference Manual and the Components Writer's Guide. These
+are being continually updated as the system develops.</P
+></LI
+></UL
+></DIV
+><DIV
+CLASS="NAVFOOTER"
+><HR
+ALIGN="LEFT"
+WIDTH="100%"><TABLE
+SUMMARY="Footer navigation table"
+WIDTH="100%"
+BORDER="0"
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+><TR
+><TD
+WIDTH="33%"
+ALIGN="left"
+VALIGN="top"
+><A
+HREF="user-guide-introduction.html"
+ACCESSKEY="P"
+>Prev</A
+></TD
+><TD
+WIDTH="34%"
+ALIGN="center"
+VALIGN="top"
+><A
+HREF="ecos-user-guide.html"
+ACCESSKEY="H"
+>Home</A
+></TD
+><TD
+WIDTH="33%"
+ALIGN="right"
+VALIGN="top"
+><A
+HREF="ecos-overview.html"
+ACCESSKEY="N"
+>Next</A
+></TD
+></TR
+><TR
+><TD
+WIDTH="33%"
+ALIGN="left"
+VALIGN="top"
+>Introduction</TD
+><TD
+WIDTH="34%"
+ALIGN="center"
+VALIGN="top"
+><A
+HREF="user-guide-introduction.html"
+ACCESSKEY="U"
+>Up</A
+></TD
+><TD
+WIDTH="33%"
+ALIGN="right"
+VALIGN="top"
+><SPAN
+CLASS="PRODUCTNAME"
+>eCos</SPAN
+> Overview</TD
+></TR
+></TABLE
+></DIV
+></BODY
+></HTML
+>
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