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<!-- Copyright (C) 2003 Red Hat, Inc.                                -->
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<HTML
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>Configuring and Building eCos from Source</TITLE
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><DIV
CLASS="CHAPTER"
><H1
><A
NAME="CONFIGURING-AND-BUILDING-ECOS-FROM-SOURCE">Chapter 11. Configuring and Building <SPAN
CLASS="PRODUCTNAME"
>eCos</SPAN
> from Source</H1
><DIV
CLASS="TOC"
><DL
><DT
><B
>Table of Contents</B
></DT
><DT
><A
HREF="configuring-and-building-ecos-from-source.html#ECOS-STARTUP-CONFIGS"
><SPAN
CLASS="PRODUCTNAME"
>eCos</SPAN
> Start-up Configurations</A
></DT
><DT
><A
HREF="using-configtool-windows-linux.html"
>Configuration Tool on Windows and Linux Quick Start</A
></DT
><DT
><A
HREF="using-ecosconfig-on-linux.html"
>Ecosconfig on Windows and Linux Quick Start</A
></DT
></DL
></DIV
><P
>This chapter documents the configuration of <SPAN
CLASS="PRODUCTNAME"
>eCos</SPAN
>. The process is
the same for any of the supported targets: you may select a
hardware target (if you have a board available), any one of the
simulators, or a synthetic target (if your host platform has synthetic
target support).</P
><DIV
CLASS="SECT1"
><H1
CLASS="SECT1"
><A
NAME="ECOS-STARTUP-CONFIGS"><SPAN
CLASS="PRODUCTNAME"
>eCos</SPAN
> Start-up Configurations</H1
><P
>There are various ways to download an executable image to a
target board, and these involve different ways of preparing the
executable image. In the <SPAN
CLASS="PRODUCTNAME"
>eCos</SPAN
> Hardware Abstraction Layer (HAL package)
there are configuration options to support the different download
methods. <A
HREF="configuring-and-building-ecos-from-source.html#USER-GUIDE-DOWNLOAD-METHODS"
>Table 11-1</A
> summarizes the
ways in which an <SPAN
CLASS="PRODUCTNAME"
>eCos</SPAN
> image can be prepared for different types of
download. This is not an exhaustive list, some targets define
additional start-up types of their own. Where a ROM Monitor is
mentioned, this will usually be RedBoot, although on some older, or
low resource, targets you may need to use CygMon or the GDB stubs ROM,
see the target documentation for details.</P
><DIV
CLASS="TABLE"
><A
NAME="USER-GUIDE-DOWNLOAD-METHODS"><P
><B
>Table 11-1. Configuration for various download methods</B
></P
><TABLE
BORDER="1"
CLASS="CALSTABLE"
><THEAD
><TR
><TH
ALIGN="LEFT"
VALIGN="TOP"
>Download method</TH
><TH
ALIGN="LEFT"
VALIGN="TOP"
>HAL configuration</TH
></TR
></THEAD
><TBODY
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
>Burn hardware ROM</TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
>&nbsp;ROM or ROMRAM start-up</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
>Download to ROM emulator</TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
>&nbsp;ROM or ROMRAM start-up</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
>Download to board with ROM Monitor</TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
>&nbsp;RAM start-up</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
>Download to simulator without ROM Monitor</TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
>&nbsp;ROM start-up</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
>Download to simulator with ROM Monitor</TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
>&nbsp;RAM start-up</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
>Download to simulator ignoring devices</TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
>&nbsp;SIM configuration</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
>Run synthetic target</TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
>&nbsp;RAM start-up</TD
></TR
></TBODY
></TABLE
></DIV
><DIV
CLASS="CAUTION"
><P
></P
><TABLE
CLASS="CAUTION"
BORDER="1"
WIDTH="100%"
><TR
><TD
ALIGN="CENTER"
><B
>Caution</B
></TD
></TR
><TR
><TD
ALIGN="LEFT"
><P
>You cannot run an application configured for RAM start-up
on the simulator directly: it will fail during start-up. You can
only download it to the simulator if
you are already running RedBoot in the simulator,
as described in the toolchain documentation
or you load through the
<SPAN
CLASS="emphasis"
><I
CLASS="EMPHASIS"
>SID </I
></SPAN
>
GDB debugging component.  This is not the same as the simulated
stub, since it does not require a target program to be running to
get GDB to talk to it.  It can be done before letting the simulator
run
or you use the ELF loader component to get a program into memory.</P
></TD
></TR
></TABLE
></DIV
><DIV
CLASS="NOTE"
><BLOCKQUOTE
CLASS="NOTE"
><P
><B
>Note: </B
>Configuring <SPAN
CLASS="PRODUCTNAME"
>eCos</SPAN
>' HAL package for simulation should
rarely be needed for real development; binaries built with such
a kernel will not run on target boards at all,
and the MN10300 and
TX39 simulators can run binaries built for stdeval1 and jmr3904
target boards.
The main use for a ``simulation'' configuration
is if you are trying to work around problems with the device drivers
or with the simulator.  Also note that when using a TX39 system configured
for simulator start-up you should then invoke the simulator with
the <TT
CLASS="OPTION"
>--board=jmr3904pal</TT
>
option instead of
<TT
CLASS="OPTION"
>--board=jmr3904</TT
></P
></BLOCKQUOTE
></DIV
><DIV
CLASS="NOTE"
><BLOCKQUOTE
CLASS="NOTE"
><P
><B
>Note: </B
>If your chosen architecture does not have simulator support,
then the combinations above that refer to the simulator do not apply.
Similarly, if your chosen platform does not have RedBoot
ROM support, the combinations listed above that use
RedBoot do not apply.</P
></BLOCKQUOTE
></DIV
><P
>The debugging environment for most developers will be either
a hardware board or the simulator, in which case they will be able
to select a single HAL configuration.</P
></DIV
></DIV
><DIV
CLASS="NAVFOOTER"
><HR
ALIGN="LEFT"
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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			`>Configuring and Building eCos from Source</TITLE`
13			`><meta name="MSSmartTagsPreventParsing" content="TRUE">`
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15			`NAME="GENERATOR"`
16			`CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+`
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19			`TITLE="eCos User Guide"`
20			`HREF="ecos-user-guide.html"><LINK`
21			`REL="UP"`
22			`TITLE="Programming With eCos"`
23			`HREF="user-guide-programming.html"><LINK`
24			`REL="PREVIOUS"`
25			`TITLE="Programming With eCos"`
26			`HREF="programming-with-ecos.html"><LINK`
27			`REL="NEXT"`
28			`TITLE="Configuration Tool on Windows and Linux Quick Start"`
29			`HREF="using-configtool-windows-linux.html"></HEAD`
30			`><BODY`
31			`CLASS="CHAPTER"`
32			`BGCOLOR="#FFFFFF"`
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40			`SUMMARY="Header navigation table"`
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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="programming-with-ecos.html"`
58			`ACCESSKEY="P"`
59			`>Prev</A`
60			`></TD`
61			`><TD`
62			`WIDTH="80%"`
63			`ALIGN="center"`
64			`VALIGN="bottom"`
65			`></TD`
66			`><TD`
67			`WIDTH="10%"`
68			`ALIGN="right"`
69			`VALIGN="bottom"`
70			`><A`
71			`HREF="using-configtool-windows-linux.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="CHAPTER"`
82			`><H1`
83			`><A`
84			`NAME="CONFIGURING-AND-BUILDING-ECOS-FROM-SOURCE">Chapter 11. Configuring and Building <SPAN`
85			`CLASS="PRODUCTNAME"`
86			`>eCos</SPAN`
87			`> from Source</H1`
88			`><DIV`
89			`CLASS="TOC"`
90			`><DL`
91			`><DT`
92			`><B`
93			`>Table of Contents</B`
94			`></DT`
95			`><DT`
96			`><A`
97			`HREF="configuring-and-building-ecos-from-source.html#ECOS-STARTUP-CONFIGS"`
98			`><SPAN`
99			`CLASS="PRODUCTNAME"`
100			`>eCos</SPAN`
101			`> Start-up Configurations</A`
102			`></DT`
103			`><DT`
104			`><A`
105			`HREF="using-configtool-windows-linux.html"`
106			`>Configuration Tool on Windows and Linux Quick Start</A`
107			`></DT`
108			`><DT`
109			`><A`
110			`HREF="using-ecosconfig-on-linux.html"`
111			`>Ecosconfig on Windows and Linux Quick Start</A`
112			`></DT`
113			`></DL`
114			`></DIV`
115			`><P`
116			`>This chapter documents the configuration of <SPAN`
117			`CLASS="PRODUCTNAME"`
118			`>eCos</SPAN`
119			`>. The process is`
120			`the same for any of the supported targets: you may select a`
121			`hardware target (if you have a board available), any one of the`
122			`simulators, or a synthetic target (if your host platform has synthetic`
123			`target support).</P`
124			`><DIV`
125			`CLASS="SECT1"`
126			`><H1`
127			`CLASS="SECT1"`
128			`><A`
129			`NAME="ECOS-STARTUP-CONFIGS"><SPAN`
130			`CLASS="PRODUCTNAME"`
131			`>eCos</SPAN`
132			`> Start-up Configurations</H1`
133			`><P`
134			`>There are various ways to download an executable image to a`
135			`target board, and these involve different ways of preparing the`
136			`executable image. In the <SPAN`
137			`CLASS="PRODUCTNAME"`
138			`>eCos</SPAN`
139			`> Hardware Abstraction Layer (HAL package)`
140			`there are configuration options to support the different download`
141			`methods. <A`
142			`HREF="configuring-and-building-ecos-from-source.html#USER-GUIDE-DOWNLOAD-METHODS"`
143			`>Table 11-1</A`
144			`> summarizes the`
145			`ways in which an <SPAN`
146			`CLASS="PRODUCTNAME"`
147			`>eCos</SPAN`
148			`> image can be prepared for different types of`
149			`download. This is not an exhaustive list, some targets define`
150			`additional start-up types of their own. Where a ROM Monitor is`
151			`mentioned, this will usually be RedBoot, although on some older, or`
152			`low resource, targets you may need to use CygMon or the GDB stubs ROM,`
153			`see the target documentation for details.</P`
154			`><DIV`
155			`CLASS="TABLE"`
156			`><A`
157			`NAME="USER-GUIDE-DOWNLOAD-METHODS"><P`
158			`><B`
159			`>Table 11-1. Configuration for various download methods</B`
160			`></P`
161			`><TABLE`
162			`BORDER="1"`
163			`CLASS="CALSTABLE"`
164			`><THEAD`
165			`><TR`
166			`><TH`
167			`ALIGN="LEFT"`
168			`VALIGN="TOP"`
169			`>Download method</TH`
170			`><TH`
171			`ALIGN="LEFT"`
172			`VALIGN="TOP"`
173			`>HAL configuration</TH`
174			`></TR`
175			`></THEAD`
176			`><TBODY`
177			`><TR`
178			`><TD`
179			`ALIGN="LEFT"`
180			`VALIGN="TOP"`
181			`>Burn hardware ROM</TD`
182			`><TD`
183			`ALIGN="LEFT"`
184			`VALIGN="TOP"`
185			`> ROM or ROMRAM start-up</TD`
186			`></TR`
187			`><TR`
188			`><TD`
189			`ALIGN="LEFT"`
190			`VALIGN="TOP"`
191			`>Download to ROM emulator</TD`
192			`><TD`
193			`ALIGN="LEFT"`
194			`VALIGN="TOP"`
195			`> ROM or ROMRAM start-up</TD`
196			`></TR`
197			`><TR`
198			`><TD`
199			`ALIGN="LEFT"`
200			`VALIGN="TOP"`
201			`>Download to board with ROM Monitor</TD`
202			`><TD`
203			`ALIGN="LEFT"`
204			`VALIGN="TOP"`
205			`> RAM start-up</TD`
206			`></TR`
207			`><TR`
208			`><TD`
209			`ALIGN="LEFT"`
210			`VALIGN="TOP"`
211			`>Download to simulator without ROM Monitor</TD`
212			`><TD`
213			`ALIGN="LEFT"`
214			`VALIGN="TOP"`
215			`> ROM start-up</TD`
216			`></TR`
217			`><TR`
218			`><TD`
219			`ALIGN="LEFT"`
220			`VALIGN="TOP"`
221			`>Download to simulator with ROM Monitor</TD`
222			`><TD`
223			`ALIGN="LEFT"`
224			`VALIGN="TOP"`
225			`> RAM start-up</TD`
226			`></TR`
227			`><TR`
228			`><TD`
229			`ALIGN="LEFT"`
230			`VALIGN="TOP"`
231			`>Download to simulator ignoring devices</TD`
232			`><TD`
233			`ALIGN="LEFT"`
234			`VALIGN="TOP"`
235			`> SIM configuration</TD`
236			`></TR`
237			`><TR`
238			`><TD`
239			`ALIGN="LEFT"`
240			`VALIGN="TOP"`
241			`>Run synthetic target</TD`
242			`><TD`
243			`ALIGN="LEFT"`
244			`VALIGN="TOP"`
245			`> RAM start-up</TD`
246			`></TR`
247			`></TBODY`
248			`></TABLE`
249			`></DIV`
250			`><DIV`
251			`CLASS="CAUTION"`
252			`><P`
253			`></P`
254			`><TABLE`
255			`CLASS="CAUTION"`
256			`BORDER="1"`
257			`WIDTH="100%"`
258			`><TR`
259			`><TD`
260			`ALIGN="CENTER"`
261			`><B`
262			`>Caution</B`
263			`></TD`
264			`></TR`
265			`><TR`
266			`><TD`
267			`ALIGN="LEFT"`
268			`><P`
269			`>You cannot run an application configured for RAM start-up`
270			`on the simulator directly: it will fail during start-up. You can`
271			`only download it to the simulator if`
272			`you are already running RedBoot in the simulator,`
273			`as described in the toolchain documentation`
274			`or you load through the`
275			`<SPAN`
276			`CLASS="emphasis"`
277			`><I`
278			`CLASS="EMPHASIS"`
279			`>SID </I`
280			`></SPAN`
281			`>`
282			`GDB debugging component. This is not the same as the simulated`
283			`stub, since it does not require a target program to be running to`
284			`get GDB to talk to it. It can be done before letting the simulator`
285			`run`
286			`or you use the ELF loader component to get a program into memory.</P`
287			`></TD`
288			`></TR`
289			`></TABLE`
290			`></DIV`
291			`><DIV`
292			`CLASS="NOTE"`
293			`><BLOCKQUOTE`
294			`CLASS="NOTE"`
295			`><P`
296			`><B`
297			`>Note: </B`
298			`>Configuring <SPAN`
299			`CLASS="PRODUCTNAME"`
300			`>eCos</SPAN`
301			`>' HAL package for simulation should`
302			`rarely be needed for real development; binaries built with such`
303			`a kernel will not run on target boards at all,`
304			`and the MN10300 and`
305			`TX39 simulators can run binaries built for stdeval1 and jmr3904`
306			`target boards.`
307			The main use for a ``simulation'' configuration
308			`is if you are trying to work around problems with the device drivers`
309			`or with the simulator. Also note that when using a TX39 system configured`
310			`for simulator start-up you should then invoke the simulator with`
311			`the <TT`
312			`CLASS="OPTION"`
313			`>--board=jmr3904pal</TT`
314			`>`
315			`option instead of`
316			`<TT`
317			`CLASS="OPTION"`
318			`>--board=jmr3904</TT`
319			`></P`
320			`></BLOCKQUOTE`
321			`></DIV`
322			`><DIV`
323			`CLASS="NOTE"`
324			`><BLOCKQUOTE`
325			`CLASS="NOTE"`
326			`><P`
327			`><B`
328			`>Note: </B`
329			`>If your chosen architecture does not have simulator support,`
330			`then the combinations above that refer to the simulator do not apply.`
331			`Similarly, if your chosen platform does not have RedBoot`
332			`ROM support, the combinations listed above that use`
333			`RedBoot do not apply.</P`
334			`></BLOCKQUOTE`
335			`></DIV`
336			`><P`
337			`>The debugging environment for most developers will be either`
338			`a hardware board or the simulator, in which case they will be able`
339			`to select a single HAL configuration.</P`
340			`></DIV`
341			`></DIV`
342			`><DIV`
343			`CLASS="NAVFOOTER"`
344			`><HR`
345			`ALIGN="LEFT"`
346			`WIDTH="100%"><TABLE`
347			`SUMMARY="Footer navigation table"`
348			`WIDTH="100%"`
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354			`WIDTH="33%"`
355			`ALIGN="left"`
356			`VALIGN="top"`
357			`><A`
358			`HREF="programming-with-ecos.html"`
359			`ACCESSKEY="P"`
360			`>Prev</A`
361			`></TD`
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364			`ALIGN="center"`
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368			`ACCESSKEY="H"`
369			`>Home</A`
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372			`WIDTH="33%"`
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386			`>Programming With <SPAN`
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388			`>eCos</SPAN`
389			`></TD`
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401			`ALIGN="right"`
402			`VALIGN="top"`
403			`>Configuration Tool on Windows and Linux Quick Start</TD`
404			`></TR`
405			`></TABLE`
406			`></DIV`
407			`></BODY`
408			`></HTML`
409			`>`

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