<!-- Copyright (C) 2003 Red Hat, Inc. -->
|
<!-- Copyright (C) 2003 Red Hat, Inc. -->
|
<!-- This material may be distributed only subject to the terms -->
|
<!-- This material may be distributed only subject to the terms -->
|
<!-- and conditions set forth in the Open Publication License, v1.0 -->
|
<!-- and conditions set forth in the Open Publication License, v1.0 -->
|
<!-- or later (the latest version is presently available at -->
|
<!-- or later (the latest version is presently available at -->
|
<!-- http://www.opencontent.org/openpub/). -->
|
<!-- http://www.opencontent.org/openpub/). -->
|
<!-- Distribution of the work or derivative of the work in any -->
|
<!-- Distribution of the work or derivative of the work in any -->
|
<!-- standard (paper) book form is prohibited unless prior -->
|
<!-- standard (paper) book form is prohibited unless prior -->
|
<!-- permission is obtained from the copyright holder. -->
|
<!-- permission is obtained from the copyright holder. -->
|
<HTML
|
<HTML
|
><HEAD
|
><HEAD
|
><TITLE
|
><TITLE
|
>Key Features</TITLE
|
>Key Features</TITLE
|
><meta name="MSSmartTagsPreventParsing" content="TRUE">
|
><meta name="MSSmartTagsPreventParsing" content="TRUE">
|
<META
|
<META
|
NAME="GENERATOR"
|
NAME="GENERATOR"
|
CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+
|
CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+
|
"><LINK
|
"><LINK
|
REL="HOME"
|
REL="HOME"
|
TITLE="eCos User Guide"
|
TITLE="eCos User Guide"
|
HREF="ecos-user-guide.html"><LINK
|
HREF="ecos-user-guide.html"><LINK
|
REL="UP"
|
REL="UP"
|
TITLE="Introduction"
|
TITLE="Introduction"
|
HREF="user-guide-introduction.html"><LINK
|
HREF="user-guide-introduction.html"><LINK
|
REL="PREVIOUS"
|
REL="PREVIOUS"
|
TITLE="Introduction"
|
TITLE="Introduction"
|
HREF="user-guide-introduction.html"><LINK
|
HREF="user-guide-introduction.html"><LINK
|
REL="NEXT"
|
REL="NEXT"
|
TITLE="eCos Overview"
|
TITLE="eCos Overview"
|
HREF="ecos-overview.html"></HEAD
|
HREF="ecos-overview.html"></HEAD
|
><BODY
|
><BODY
|
CLASS="CHAPTER"
|
CLASS="CHAPTER"
|
BGCOLOR="#FFFFFF"
|
BGCOLOR="#FFFFFF"
|
TEXT="#000000"
|
TEXT="#000000"
|
LINK="#0000FF"
|
LINK="#0000FF"
|
VLINK="#840084"
|
VLINK="#840084"
|
ALINK="#0000FF"
|
ALINK="#0000FF"
|
><DIV
|
><DIV
|
CLASS="NAVHEADER"
|
CLASS="NAVHEADER"
|
><TABLE
|
><TABLE
|
SUMMARY="Header navigation table"
|
SUMMARY="Header navigation table"
|
WIDTH="100%"
|
WIDTH="100%"
|
BORDER="0"
|
BORDER="0"
|
CELLPADDING="0"
|
CELLPADDING="0"
|
CELLSPACING="0"
|
CELLSPACING="0"
|
><TR
|
><TR
|
><TH
|
><TH
|
COLSPAN="3"
|
COLSPAN="3"
|
ALIGN="center"
|
ALIGN="center"
|
>eCos User Guide</TH
|
>eCos User Guide</TH
|
></TR
|
></TR
|
><TR
|
><TR
|
><TD
|
><TD
|
WIDTH="10%"
|
WIDTH="10%"
|
ALIGN="left"
|
ALIGN="left"
|
VALIGN="bottom"
|
VALIGN="bottom"
|
><A
|
><A
|
HREF="user-guide-introduction.html"
|
HREF="user-guide-introduction.html"
|
ACCESSKEY="P"
|
ACCESSKEY="P"
|
>Prev</A
|
>Prev</A
|
></TD
|
></TD
|
><TD
|
><TD
|
WIDTH="80%"
|
WIDTH="80%"
|
ALIGN="center"
|
ALIGN="center"
|
VALIGN="bottom"
|
VALIGN="bottom"
|
></TD
|
></TD
|
><TD
|
><TD
|
WIDTH="10%"
|
WIDTH="10%"
|
ALIGN="right"
|
ALIGN="right"
|
VALIGN="bottom"
|
VALIGN="bottom"
|
><A
|
><A
|
HREF="ecos-overview.html"
|
HREF="ecos-overview.html"
|
ACCESSKEY="N"
|
ACCESSKEY="N"
|
>Next</A
|
>Next</A
|
></TD
|
></TD
|
></TR
|
></TR
|
></TABLE
|
></TABLE
|
><HR
|
><HR
|
ALIGN="LEFT"
|
ALIGN="LEFT"
|
WIDTH="100%"></DIV
|
WIDTH="100%"></DIV
|
><DIV
|
><DIV
|
CLASS="CHAPTER"
|
CLASS="CHAPTER"
|
><H1
|
><H1
|
><A
|
><A
|
NAME="ECOS-KEY-FEATURES">Chapter 1. Key Features</H1
|
NAME="ECOS-KEY-FEATURES">Chapter 1. Key Features</H1
|
><P
|
><P
|
></P
|
></P
|
><UL
|
><UL
|
><LI
|
><LI
|
><P
|
><P
|
><SPAN
|
><SPAN
|
CLASS="PRODUCTNAME"
|
CLASS="PRODUCTNAME"
|
>eCos</SPAN
|
>eCos</SPAN
|
> is distributed under the GPL
|
> is distributed under the GPL
|
license with an exception which permits proprietary application code
|
license with an exception which permits proprietary application code
|
to be linked with <SPAN
|
to be linked with <SPAN
|
CLASS="PRODUCTNAME"
|
CLASS="PRODUCTNAME"
|
>eCos</SPAN
|
>eCos</SPAN
|
> without itself being
|
> without itself being
|
forced to be released under the GPL. It is also royalty and buyout
|
forced to be released under the GPL. It is also royalty and buyout
|
free.</P
|
free.</P
|
></LI
|
></LI
|
><LI
|
><LI
|
><P
|
><P
|
>As an Open Source project, <SPAN
|
>As an Open Source project, <SPAN
|
CLASS="PRODUCTNAME"
|
CLASS="PRODUCTNAME"
|
>eCos</SPAN
|
>eCos</SPAN
|
> is
|
> is
|
under constant improvement, with an active developer community, based
|
under constant improvement, with an active developer community, based
|
around the <SPAN
|
around the <SPAN
|
CLASS="PRODUCTNAME"
|
CLASS="PRODUCTNAME"
|
>eCos</SPAN
|
>eCos</SPAN
|
> web site at <A
|
> web site at <A
|
HREF="http://sources.redhat.com/ecos/"
|
HREF="http://sources.redhat.com/ecos/"
|
TARGET="_top"
|
TARGET="_top"
|
>http://sources.redhat.com/ecos/</A
|
>http://sources.redhat.com/ecos/</A
|
>.</P
|
>.</P
|
></LI
|
></LI
|
><LI
|
><LI
|
><P
|
><P
|
>Powerful GUI-based configuration system allowing both large and
|
>Powerful GUI-based configuration system allowing both large and
|
fine grained configuration of <SPAN
|
fine grained configuration of <SPAN
|
CLASS="PRODUCTNAME"
|
CLASS="PRODUCTNAME"
|
>eCos</SPAN
|
>eCos</SPAN
|
>. This
|
>. This
|
allows the functionality of <SPAN
|
allows the functionality of <SPAN
|
CLASS="PRODUCTNAME"
|
CLASS="PRODUCTNAME"
|
>eCos</SPAN
|
>eCos</SPAN
|
> to be
|
> to be
|
customized to the exact requirements of the application.</P
|
customized to the exact requirements of the application.</P
|
></LI
|
></LI
|
><LI
|
><LI
|
><P
|
><P
|
>Full-featured, flexible, configurable, real time embedded
|
>Full-featured, flexible, configurable, real time embedded
|
kernel. The kernel provides thread scheduling, synchronization,
|
kernel. The kernel provides thread scheduling, synchronization,
|
timer, and communication primitives. It handles hardware resources
|
timer, and communication primitives. It handles hardware resources
|
such as interrupts, exceptions, memory and caches.</P
|
such as interrupts, exceptions, memory and caches.</P
|
></LI
|
></LI
|
><LI
|
><LI
|
><P
|
><P
|
>The Hardware Abstraction Layer (HAL) hides the specific features
|
>The Hardware Abstraction Layer (HAL) hides the specific features
|
of each supported CPU and platform, so that the kernel and other
|
of each supported CPU and platform, so that the kernel and other
|
run-time components can be implemented in a portable fashion.</P
|
run-time components can be implemented in a portable fashion.</P
|
></LI
|
></LI
|
><LI
|
><LI
|
><P
|
><P
|
>Support for µITRON and POSIX Application Programmer
|
>Support for µITRON and POSIX Application Programmer
|
Interfaces (APIs). It also includes a fully featured, thread-safe ISO
|
Interfaces (APIs). It also includes a fully featured, thread-safe ISO
|
standard C library and math library.</P
|
standard C library and math library.</P
|
></LI
|
></LI
|
><LI
|
><LI
|
><P
|
><P
|
>Support for a wide variety of devices including many serial
|
>Support for a wide variety of devices including many serial
|
devices, ethernet controllers and FLASH memories. There is also
|
devices, ethernet controllers and FLASH memories. There is also
|
support for PCMCIA, USB and PCI interconnects.</P
|
support for PCMCIA, USB and PCI interconnects.</P
|
></LI
|
></LI
|
><LI
|
><LI
|
><P
|
><P
|
>A fully featured TCP/IP stack implementing IP, IPv6, ICMP, UDP
|
>A fully featured TCP/IP stack implementing IP, IPv6, ICMP, UDP
|
and TCP over ethernet. Support for SNMP, HTTP, TFTP and FTP are also
|
and TCP over ethernet. Support for SNMP, HTTP, TFTP and FTP are also
|
present.</P
|
present.</P
|
></LI
|
></LI
|
><LI
|
><LI
|
><P
|
><P
|
>The RedBoot ROM monitor is an application that uses the
|
>The RedBoot ROM monitor is an application that uses the
|
<SPAN
|
<SPAN
|
CLASS="PRODUCTNAME"
|
CLASS="PRODUCTNAME"
|
>eCos</SPAN
|
>eCos</SPAN
|
> HAL for portability. It provides
|
> HAL for portability. It provides
|
serial and ethernet based booting and debug services during
|
serial and ethernet based booting and debug services during
|
development.</P
|
development.</P
|
></LI
|
></LI
|
><LI
|
><LI
|
><P
|
><P
|
>Many components include test programs that validate the
|
>Many components include test programs that validate the
|
components behaviour. These can be used both to check that hardware is
|
components behaviour. These can be used both to check that hardware is
|
functioning correctly, and as examples of
|
functioning correctly, and as examples of
|
<SPAN
|
<SPAN
|
CLASS="PRODUCTNAME"
|
CLASS="PRODUCTNAME"
|
>eCos</SPAN
|
>eCos</SPAN
|
> usage.</P
|
> usage.</P
|
></LI
|
></LI
|
><LI
|
><LI
|
><P
|
><P
|
><SPAN
|
><SPAN
|
CLASS="PRODUCTNAME"
|
CLASS="PRODUCTNAME"
|
>eCos</SPAN
|
>eCos</SPAN
|
> documentation included this User
|
> documentation included this User
|
Guide, the Reference Manual and the Components Writer's Guide. These
|
Guide, the Reference Manual and the Components Writer's Guide. These
|
are being continually updated as the system develops.</P
|
are being continually updated as the system develops.</P
|
></LI
|
></LI
|
></UL
|
></UL
|
></DIV
|
></DIV
|
><DIV
|
><DIV
|
CLASS="NAVFOOTER"
|
CLASS="NAVFOOTER"
|
><HR
|
><HR
|
ALIGN="LEFT"
|
ALIGN="LEFT"
|
WIDTH="100%"><TABLE
|
WIDTH="100%"><TABLE
|
SUMMARY="Footer navigation table"
|
SUMMARY="Footer navigation table"
|
WIDTH="100%"
|
WIDTH="100%"
|
BORDER="0"
|
BORDER="0"
|
CELLPADDING="0"
|
CELLPADDING="0"
|
CELLSPACING="0"
|
CELLSPACING="0"
|
><TR
|
><TR
|
><TD
|
><TD
|
WIDTH="33%"
|
WIDTH="33%"
|
ALIGN="left"
|
ALIGN="left"
|
VALIGN="top"
|
VALIGN="top"
|
><A
|
><A
|
HREF="user-guide-introduction.html"
|
HREF="user-guide-introduction.html"
|
ACCESSKEY="P"
|
ACCESSKEY="P"
|
>Prev</A
|
>Prev</A
|
></TD
|
></TD
|
><TD
|
><TD
|
WIDTH="34%"
|
WIDTH="34%"
|
ALIGN="center"
|
ALIGN="center"
|
VALIGN="top"
|
VALIGN="top"
|
><A
|
><A
|
HREF="ecos-user-guide.html"
|
HREF="ecos-user-guide.html"
|
ACCESSKEY="H"
|
ACCESSKEY="H"
|
>Home</A
|
>Home</A
|
></TD
|
></TD
|
><TD
|
><TD
|
WIDTH="33%"
|
WIDTH="33%"
|
ALIGN="right"
|
ALIGN="right"
|
VALIGN="top"
|
VALIGN="top"
|
><A
|
><A
|
HREF="ecos-overview.html"
|
HREF="ecos-overview.html"
|
ACCESSKEY="N"
|
ACCESSKEY="N"
|
>Next</A
|
>Next</A
|
></TD
|
></TD
|
></TR
|
></TR
|
><TR
|
><TR
|
><TD
|
><TD
|
WIDTH="33%"
|
WIDTH="33%"
|
ALIGN="left"
|
ALIGN="left"
|
VALIGN="top"
|
VALIGN="top"
|
>Introduction</TD
|
>Introduction</TD
|
><TD
|
><TD
|
WIDTH="34%"
|
WIDTH="34%"
|
ALIGN="center"
|
ALIGN="center"
|
VALIGN="top"
|
VALIGN="top"
|
><A
|
><A
|
HREF="user-guide-introduction.html"
|
HREF="user-guide-introduction.html"
|
ACCESSKEY="U"
|
ACCESSKEY="U"
|
>Up</A
|
>Up</A
|
></TD
|
></TD
|
><TD
|
><TD
|
WIDTH="33%"
|
WIDTH="33%"
|
ALIGN="right"
|
ALIGN="right"
|
VALIGN="top"
|
VALIGN="top"
|
><SPAN
|
><SPAN
|
CLASS="PRODUCTNAME"
|
CLASS="PRODUCTNAME"
|
>eCos</SPAN
|
>eCos</SPAN
|
> Overview</TD
|
> Overview</TD
|
></TR
|
></TR
|
></TABLE
|
></TABLE
|
></DIV
|
></DIV
|
></BODY
|
></BODY
|
></HTML
|
></HTML
|
|
|
