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<!-- Copyright (C) 2003 Red Hat, Inc.                                -->
<!-- This material may be distributed only subject to the terms      -->
<!-- and conditions set forth in the Open Publication License, v1.0  -->
<!-- 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       -->
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<HTML
><HEAD
><TITLE
>Key Features</TITLE
><meta name="MSSmartTagsPreventParsing" content="TRUE">
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NAME="GENERATOR"
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"><LINK
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TITLE="eCos User Guide"
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TITLE="Introduction"
HREF="user-guide-introduction.html"><LINK
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>eCos User Guide</TH
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><TR
><TD
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ALIGN="left"
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><A
HREF="user-guide-introduction.html"
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><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 &micro;ITRON 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"
CELLPADDING="0"
CELLSPACING="0"
><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
>

Line No.	Rev	Author	Line
1	28	unneback	`<!-- Copyright (C) 2003 Red Hat, Inc. -->`
2			`<!-- This material may be distributed only subject to the terms -->`
3			`<!-- and conditions set forth in the Open Publication License, v1.0 -->`
4			`<!-- or later (the latest version is presently available at -->`
5			`<!-- http://www.opencontent.org/openpub/). -->`
6			`<!-- Distribution of the work or derivative of the work in any -->`
7			`<!-- standard (paper) book form is prohibited unless prior -->`
8			`<!-- permission is obtained from the copyright holder. -->`
9			`<HTML`
10			`><HEAD`
11			`><TITLE`
12			`>Key Features</TITLE`
13			`><meta name="MSSmartTagsPreventParsing" content="TRUE">`
14			`<META`
15			`NAME="GENERATOR"`
16			`CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+`
17			`"><LINK`
18			`REL="HOME"`
19			`TITLE="eCos User Guide"`
20			`HREF="ecos-user-guide.html"><LINK`
21			`REL="UP"`
22			`TITLE="Introduction"`
23			`HREF="user-guide-introduction.html"><LINK`
24			`REL="PREVIOUS"`
25			`TITLE="Introduction"`
26			`HREF="user-guide-introduction.html"><LINK`
27			`REL="NEXT"`
28			`TITLE="eCos Overview"`
29			`HREF="ecos-overview.html"></HEAD`
30			`><BODY`
31			`CLASS="CHAPTER"`
32			`BGCOLOR="#FFFFFF"`
33			`TEXT="#000000"`
34			`LINK="#0000FF"`
35			`VLINK="#840084"`
36			`ALINK="#0000FF"`
37			`><DIV`
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40			`SUMMARY="Header navigation table"`
41			`WIDTH="100%"`
42			`BORDER="0"`
43			`CELLPADDING="0"`
44			`CELLSPACING="0"`
45			`><TR`
46			`><TH`
47			`COLSPAN="3"`
48			`ALIGN="center"`
49			`>eCos User Guide</TH`
50			`></TR`
51			`><TR`
52			`><TD`
53			`WIDTH="10%"`
54			`ALIGN="left"`
55			`VALIGN="bottom"`
56			`><A`
57			`HREF="user-guide-introduction.html"`
58			`ACCESSKEY="P"`
59			`>Prev</A`
60			`></TD`
61			`><TD`
62			`WIDTH="80%"`
63			`ALIGN="center"`
64			`VALIGN="bottom"`
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69			`VALIGN="bottom"`
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73			`>Next</A`
74			`></TD`
75			`></TR`
76			`></TABLE`
77			`><HR`
78			`ALIGN="LEFT"`
79			`WIDTH="100%"></DIV`
80			`><DIV`
81			`CLASS="CHAPTER"`
82			`><H1`
83			`><A`
84			`NAME="ECOS-KEY-FEATURES">Chapter 1. Key Features</H1`
85			`><P`
86			`></P`
87			`><UL`
88			`><LI`
89			`><P`
90			`><SPAN`
91			`CLASS="PRODUCTNAME"`
92			`>eCos</SPAN`
93			`> is distributed under the GPL`
94			`license with an exception which permits proprietary application code`
95			`to be linked with <SPAN`
96			`CLASS="PRODUCTNAME"`
97			`>eCos</SPAN`
98			`> without itself being`
99			`forced to be released under the GPL. It is also royalty and buyout`
100			`free.</P`
101			`></LI`
102			`><LI`
103			`><P`
104			`>As an Open Source project, <SPAN`
105			`CLASS="PRODUCTNAME"`
106			`>eCos</SPAN`
107			`> is`
108			`under constant improvement, with an active developer community, based`
109			`around the <SPAN`
110			`CLASS="PRODUCTNAME"`
111			`>eCos</SPAN`
112			`> web site at <A`
113			`HREF="http://sources.redhat.com/ecos/"`
114			`TARGET="_top"`
115			`>http://sources.redhat.com/ecos/</A`
116			`>.</P`
117			`></LI`
118			`><LI`
119			`><P`
120			`>Powerful GUI-based configuration system allowing both large and`
121			`fine grained configuration of <SPAN`
122			`CLASS="PRODUCTNAME"`
123			`>eCos</SPAN`
124			`>. This`
125			`allows the functionality of <SPAN`
126			`CLASS="PRODUCTNAME"`
127			`>eCos</SPAN`
128			`> to be`
129			`customized to the exact requirements of the application.</P`
130			`></LI`
131			`><LI`
132			`><P`
133			`>Full-featured, flexible, configurable, real time embedded`
134			`kernel. The kernel provides thread scheduling, synchronization,`
135			`timer, and communication primitives. It handles hardware resources`
136			`such as interrupts, exceptions, memory and caches.</P`
137			`></LI`
138			`><LI`
139			`><P`
140			`>The Hardware Abstraction Layer (HAL) hides the specific features`
141			`of each supported CPU and platform, so that the kernel and other`
142			`run-time components can be implemented in a portable fashion.</P`
143			`></LI`
144			`><LI`
145			`><P`
146			`>Support for µITRON and POSIX Application Programmer`
147			`Interfaces (APIs). It also includes a fully featured, thread-safe ISO`
148			`standard C library and math library.</P`
149			`></LI`
150			`><LI`
151			`><P`
152			`>Support for a wide variety of devices including many serial`
153			`devices, ethernet controllers and FLASH memories. There is also`
154			`support for PCMCIA, USB and PCI interconnects.</P`
155			`></LI`
156			`><LI`
157			`><P`
158			`>A fully featured TCP/IP stack implementing IP, IPv6, ICMP, UDP`
159			`and TCP over ethernet. Support for SNMP, HTTP, TFTP and FTP are also`
160			`present.</P`
161			`></LI`
162			`><LI`
163			`><P`
164			`>The RedBoot ROM monitor is an application that uses the`
165			`<SPAN`
166			`CLASS="PRODUCTNAME"`
167			`>eCos</SPAN`
168			`> HAL for portability. It provides`
169			`serial and ethernet based booting and debug services during`
170			`development.</P`
171			`></LI`
172			`><LI`
173			`><P`
174			`>Many components include test programs that validate the`
175			`components behaviour. These can be used both to check that hardware is`
176			`functioning correctly, and as examples of`
177			`<SPAN`
178			`CLASS="PRODUCTNAME"`
179			`>eCos</SPAN`
180			`> usage.</P`
181			`></LI`
182			`><LI`
183			`><P`
184			`><SPAN`
185			`CLASS="PRODUCTNAME"`
186			`>eCos</SPAN`
187			`> documentation included this User`
188			`Guide, the Reference Manual and the Components Writer's Guide. These`
189			`are being continually updated as the system develops.</P`
190			`></LI`
191			`></UL`
192			`></DIV`
193			`><DIV`
194			`CLASS="NAVFOOTER"`
195			`><HR`
196			`ALIGN="LEFT"`
197			`WIDTH="100%"><TABLE`
198			`SUMMARY="Footer navigation table"`
199			`WIDTH="100%"`
200			`BORDER="0"`
201			`CELLPADDING="0"`
202			`CELLSPACING="0"`
203			`><TR`
204			`><TD`
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206			`ALIGN="left"`
207			`VALIGN="top"`
208			`><A`
209			`HREF="user-guide-introduction.html"`
210			`ACCESSKEY="P"`
211			`>Prev</A`
212			`></TD`
213			`><TD`
214			`WIDTH="34%"`
215			`ALIGN="center"`
216			`VALIGN="top"`
217			`><A`
218			`HREF="ecos-user-guide.html"`
219			`ACCESSKEY="H"`
220			`>Home</A`
221			`></TD`
222			`><TD`
223			`WIDTH="33%"`
224			`ALIGN="right"`
225			`VALIGN="top"`
226			`><A`
227			`HREF="ecos-overview.html"`
228			`ACCESSKEY="N"`
229			`>Next</A`
230			`></TD`
231			`></TR`
232			`><TR`
233			`><TD`
234			`WIDTH="33%"`
235			`ALIGN="left"`
236			`VALIGN="top"`
237			`>Introduction</TD`
238			`><TD`
239			`WIDTH="34%"`
240			`ALIGN="center"`
241			`VALIGN="top"`
242			`><A`
243			`HREF="user-guide-introduction.html"`
244			`ACCESSKEY="U"`
245			`>Up</A`
246			`></TD`
247			`><TD`
248			`WIDTH="33%"`
249			`ALIGN="right"`
250			`VALIGN="top"`
251			`><SPAN`
252			`CLASS="PRODUCTNAME"`
253			`>eCos</SPAN`
254			`> Overview</TD`
255			`></TR`
256			`></TABLE`
257			`></DIV`
258			`></BODY`
259			`></HTML`
260			`>`

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