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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
>Coarse-grained Configuration</TITLE
><meta name="MSSmartTagsPreventParsing" content="TRUE">
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CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+
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REL="HOME"
TITLE="eCos User Guide"
HREF="ecos-user-guide.html"><LINK
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TITLE="Manual Configuration"
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><TR
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>eCos User Guide</TH
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><TR
><TD
WIDTH="10%"
ALIGN="left"
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><A
HREF="ecos-packages.html"
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>Prev</A
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><TD
WIDTH="80%"
ALIGN="center"
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>Chapter 28. Manual Configuration</TD
><TD
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HREF="fine-grained-configuration.html"
ACCESSKEY="N"
>Next</A
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><HR
ALIGN="LEFT"
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><DIV
CLASS="SECT1"
><H1
CLASS="SECT1"
><A
NAME="COARSE-GRAINED-CONFIGURATION">Coarse-grained Configuration</H1
><P
>Coarse-grained configuration of
          an <SPAN
CLASS="PRODUCTNAME"
>eCos</SPAN
> system means making configuration changes using the
          <B
CLASS="COMMAND"
>ecosconfig</B
> tool. These changes
          include: </P
><P
></P
><OL
TYPE="1"
><LI
><P
>switching to different target hardware</P
></LI
><LI
><P
>switching to a different template</P
></LI
><LI
><P
>adding or removing a package</P
></LI
><LI
><P
>changing the version of a package</P
></LI
></OL
><P
>Whenever <B
CLASS="COMMAND"
>ecosconfig</B
> generates or
          updates an <SPAN
CLASS="PRODUCTNAME"
>eCos</SPAN
> configuration, it generates a configuration
          save file.</P
><P
>Suppose that the configuration was first created using
          the following command line: </P
><TABLE
BORDER="5"
BGCOLOR="#E0E0F0"
WIDTH="70%"
><TR
><TD
><PRE
CLASS="SCREEN"
>$ ecosconfig new stdeval1</PRE
></TD
></TR
></TABLE
><P
>To change the target hardware to the Cogent CMA28x
          PowerPC board, the following command would be needed:
        </P
><TABLE
BORDER="5"
BGCOLOR="#E0E0F0"
WIDTH="70%"
><TR
><TD
><PRE
CLASS="SCREEN"
>$ ecosconfig target cma28x</PRE
></TD
></TR
></TABLE
><P
>To switch to the PowerPC simulator instead: </P
><TABLE
BORDER="5"
BGCOLOR="#E0E0F0"
WIDTH="70%"
><TR
><TD
><PRE
CLASS="SCREEN"
>$ ecosconfig target psim</PRE
></TD
></TR
></TABLE
><P
>As the hardware changes, hardware-related packages such as
the HAL packages and device drivers will be added to and removed
from the configuration as appropriate. </P
><P
>To remove any package from the current configuration, use
the <B
CLASS="COMMAND"
>remove</B
> command: </P
><TABLE
BORDER="5"
BGCOLOR="#E0E0F0"
WIDTH="70%"
><TR
><TD
><PRE
CLASS="SCREEN"
>$ ecosconfig remove uitron</PRE
></TD
></TR
></TABLE
><P
>You can disable multiple packages using multiple arguments,
for example: </P
><TABLE
BORDER="5"
BGCOLOR="#E0E0F0"
WIDTH="70%"
><TR
><TD
><PRE
CLASS="SCREEN"
>$ ecosconfig remove uitron libm</PRE
></TD
></TR
></TABLE
><P
>If this turns out to have been a mistake then you can
          re-enable one or more packages with the
          <B
CLASS="COMMAND"
>add</B
> command: </P
><TABLE
BORDER="5"
BGCOLOR="#E0E0F0"
WIDTH="70%"
><TR
><TD
><PRE
CLASS="SCREEN"
>$ ecosconfig add libm</PRE
></TD
></TR
></TABLE
><P
>Changing the desired version for a package is also
          straightforward:</P
><TABLE
BORDER="5"
BGCOLOR="#E0E0F0"
WIDTH="70%"
><TR
><TD
><PRE
CLASS="SCREEN"
>$ ecosconfig version v2_1 kernel</PRE
></TD
></TR
></TABLE
><P
>It is necessary to regenerate the build tree and header
          files following any changes to the configuration before
          rebuilding <SPAN
CLASS="PRODUCTNAME"
>eCos</SPAN
>:</P
><TABLE
BORDER="5"
BGCOLOR="#E0E0F0"
WIDTH="70%"
><TR
><TD
><PRE
CLASS="SCREEN"
>$ ecosconfig tree</PRE
></TD
></TR
></TABLE
></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="ecos-packages.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="fine-grained-configuration.html"
ACCESSKEY="N"
>Next</A
></TD
></TR
><TR
><TD
WIDTH="33%"
ALIGN="left"
VALIGN="top"
>Packages</TD
><TD
WIDTH="34%"
ALIGN="center"
VALIGN="top"
><A
HREF="manual-configuration.html"
ACCESSKEY="U"
>Up</A
></TD
><TD
WIDTH="33%"
ALIGN="right"
VALIGN="top"
>Fine-grained Configuration</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			`>Coarse-grained Configuration</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="Manual Configuration"`
23			`HREF="manual-configuration.html"><LINK`
24			`REL="PREVIOUS"`
25			`TITLE="Packages"`
26			`HREF="ecos-packages.html"><LINK`
27			`REL="NEXT"`
28			`TITLE="Fine-grained Configuration"`
29			`HREF="fine-grained-configuration.html"></HEAD`
30			`><BODY`
31			`CLASS="SECT1"`
32			`BGCOLOR="#FFFFFF"`
33			`TEXT="#000000"`
34			`LINK="#0000FF"`
35			`VLINK="#840084"`
36			`ALINK="#0000FF"`
37			`><DIV`
38			`CLASS="NAVHEADER"`
39			`><TABLE`
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="ecos-packages.html"`
58			`ACCESSKEY="P"`
59			`>Prev</A`
60			`></TD`
61			`><TD`
62			`WIDTH="80%"`
63			`ALIGN="center"`
64			`VALIGN="bottom"`
65			`>Chapter 28. Manual Configuration</TD`
66			`><TD`
67			`WIDTH="10%"`
68			`ALIGN="right"`
69			`VALIGN="bottom"`
70			`><A`
71			`HREF="fine-grained-configuration.html"`
72			`ACCESSKEY="N"`
73			`>Next</A`
74			`></TD`
75			`></TR`
76			`></TABLE`
77			`><HR`
78			`ALIGN="LEFT"`
79			`WIDTH="100%"></DIV`
80			`><DIV`
81			`CLASS="SECT1"`
82			`><H1`
83			`CLASS="SECT1"`
84			`><A`
85			`NAME="COARSE-GRAINED-CONFIGURATION">Coarse-grained Configuration</H1`
86			`><P`
87			`>Coarse-grained configuration of`
88			`an <SPAN`
89			`CLASS="PRODUCTNAME"`
90			`>eCos</SPAN`
91			`> system means making configuration changes using the`
92			`<B`
93			`CLASS="COMMAND"`
94			`>ecosconfig</B`
95			`> tool. These changes`
96			`include: </P`
97			`><P`
98			`></P`
99			`><OL`
100			`TYPE="1"`
101			`><LI`
102			`><P`
103			`>switching to different target hardware</P`
104			`></LI`
105			`><LI`
106			`><P`
107			`>switching to a different template</P`
108			`></LI`
109			`><LI`
110			`><P`
111			`>adding or removing a package</P`
112			`></LI`
113			`><LI`
114			`><P`
115			`>changing the version of a package</P`
116			`></LI`
117			`></OL`
118			`><P`
119			`>Whenever <B`
120			`CLASS="COMMAND"`
121			`>ecosconfig</B`
122			`> generates or`
123			`updates an <SPAN`
124			`CLASS="PRODUCTNAME"`
125			`>eCos</SPAN`
126			`> configuration, it generates a configuration`
127			`save file.</P`
128			`><P`
129			`>Suppose that the configuration was first created using`
130			`the following command line: </P`
131			`><TABLE`
132			`BORDER="5"`
133			`BGCOLOR="#E0E0F0"`
134			`WIDTH="70%"`
135			`><TR`
136			`><TD`
137			`><PRE`
138			`CLASS="SCREEN"`
139			`>$ ecosconfig new stdeval1</PRE`
140			`></TD`
141			`></TR`
142			`></TABLE`
143			`><P`
144			`>To change the target hardware to the Cogent CMA28x`
145			`PowerPC board, the following command would be needed:`
146			`</P`
147			`><TABLE`
148			`BORDER="5"`
149			`BGCOLOR="#E0E0F0"`
150			`WIDTH="70%"`
151			`><TR`
152			`><TD`
153			`><PRE`
154			`CLASS="SCREEN"`
155			`>$ ecosconfig target cma28x</PRE`
156			`></TD`
157			`></TR`
158			`></TABLE`
159			`><P`
160			`>To switch to the PowerPC simulator instead: </P`
161			`><TABLE`
162			`BORDER="5"`
163			`BGCOLOR="#E0E0F0"`
164			`WIDTH="70%"`
165			`><TR`
166			`><TD`
167			`><PRE`
168			`CLASS="SCREEN"`
169			`>$ ecosconfig target psim</PRE`
170			`></TD`
171			`></TR`
172			`></TABLE`
173			`><P`
174			`>As the hardware changes, hardware-related packages such as`
175			`the HAL packages and device drivers will be added to and removed`
176			`from the configuration as appropriate. </P`
177			`><P`
178			`>To remove any package from the current configuration, use`
179			`the <B`
180			`CLASS="COMMAND"`
181			`>remove</B`
182			`> command: </P`
183			`><TABLE`
184			`BORDER="5"`
185			`BGCOLOR="#E0E0F0"`
186			`WIDTH="70%"`
187			`><TR`
188			`><TD`
189			`><PRE`
190			`CLASS="SCREEN"`
191			`>$ ecosconfig remove uitron</PRE`
192			`></TD`
193			`></TR`
194			`></TABLE`
195			`><P`
196			`>You can disable multiple packages using multiple arguments,`
197			`for example: </P`
198			`><TABLE`
199			`BORDER="5"`
200			`BGCOLOR="#E0E0F0"`
201			`WIDTH="70%"`
202			`><TR`
203			`><TD`
204			`><PRE`
205			`CLASS="SCREEN"`
206			`>$ ecosconfig remove uitron libm</PRE`
207			`></TD`
208			`></TR`
209			`></TABLE`
210			`><P`
211			`>If this turns out to have been a mistake then you can`
212			`re-enable one or more packages with the`
213			`<B`
214			`CLASS="COMMAND"`
215			`>add</B`
216			`> command: </P`
217			`><TABLE`
218			`BORDER="5"`
219			`BGCOLOR="#E0E0F0"`
220			`WIDTH="70%"`
221			`><TR`
222			`><TD`
223			`><PRE`
224			`CLASS="SCREEN"`
225			`>$ ecosconfig add libm</PRE`
226			`></TD`
227			`></TR`
228			`></TABLE`
229			`><P`
230			`>Changing the desired version for a package is also`
231			`straightforward:</P`
232			`><TABLE`
233			`BORDER="5"`
234			`BGCOLOR="#E0E0F0"`
235			`WIDTH="70%"`
236			`><TR`
237			`><TD`
238			`><PRE`
239			`CLASS="SCREEN"`
240			`>$ ecosconfig version v2_1 kernel</PRE`
241			`></TD`
242			`></TR`
243			`></TABLE`
244			`><P`
245			`>It is necessary to regenerate the build tree and header`
246			`files following any changes to the configuration before`
247			`rebuilding <SPAN`
248			`CLASS="PRODUCTNAME"`
249			`>eCos</SPAN`
250			`>:</P`
251			`><TABLE`
252			`BORDER="5"`
253			`BGCOLOR="#E0E0F0"`
254			`WIDTH="70%"`
255			`><TR`
256			`><TD`
257			`><PRE`
258			`CLASS="SCREEN"`
259			`>$ ecosconfig tree</PRE`
260			`></TD`
261			`></TR`
262			`></TABLE`
263			`></DIV`
264			`><DIV`
265			`CLASS="NAVFOOTER"`
266			`><HR`
267			`ALIGN="LEFT"`
268			`WIDTH="100%"><TABLE`
269			`SUMMARY="Footer navigation table"`
270			`WIDTH="100%"`
271			`BORDER="0"`
272			`CELLPADDING="0"`
273			`CELLSPACING="0"`
274			`><TR`
275			`><TD`
276			`WIDTH="33%"`
277			`ALIGN="left"`
278			`VALIGN="top"`
279			`><A`
280			`HREF="ecos-packages.html"`
281			`ACCESSKEY="P"`
282			`>Prev</A`
283			`></TD`
284			`><TD`
285			`WIDTH="34%"`
286			`ALIGN="center"`
287			`VALIGN="top"`
288			`><A`
289			`HREF="ecos-user-guide.html"`
290			`ACCESSKEY="H"`
291			`>Home</A`
292			`></TD`
293			`><TD`
294			`WIDTH="33%"`
295			`ALIGN="right"`
296			`VALIGN="top"`
297			`><A`
298			`HREF="fine-grained-configuration.html"`
299			`ACCESSKEY="N"`
300			`>Next</A`
301			`></TD`
302			`></TR`
303			`><TR`
304			`><TD`
305			`WIDTH="33%"`
306			`ALIGN="left"`
307			`VALIGN="top"`
308			`>Packages</TD`
309			`><TD`
310			`WIDTH="34%"`
311			`ALIGN="center"`
312			`VALIGN="top"`
313			`><A`
314			`HREF="manual-configuration.html"`
315			`ACCESSKEY="U"`
316			`>Up</A`
317			`></TD`
318			`><TD`
319			`WIDTH="33%"`
320			`ALIGN="right"`
321			`VALIGN="top"`
322			`>Fine-grained Configuration</TD`
323			`></TR`
324			`></TABLE`
325			`></DIV`
326			`></BODY`
327			`></HTML`
328			`>`

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