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>Chapter 28. Manual Configuration</TD
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>Chapter 28. Manual Configuration</TD
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><A
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><A
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NAME="COARSE-GRAINED-CONFIGURATION">Coarse-grained Configuration</H1
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NAME="COARSE-GRAINED-CONFIGURATION">Coarse-grained Configuration</H1
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><P
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><P
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>Coarse-grained configuration of
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>Coarse-grained configuration of
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an <SPAN
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an <SPAN
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CLASS="PRODUCTNAME"
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CLASS="PRODUCTNAME"
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>eCos</SPAN
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>eCos</SPAN
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> system means making configuration changes using the
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> system means making configuration changes using the
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<B
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<B
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CLASS="COMMAND"
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CLASS="COMMAND"
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>ecosconfig</B
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>ecosconfig</B
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> tool. These changes
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> tool. These changes
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include: </P
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include: </P
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><P
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><P
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></P
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></P
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><OL
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><OL
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TYPE="1"
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TYPE="1"
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><LI
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><LI
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><P
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><P
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>switching to different target hardware</P
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>switching to different target hardware</P
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></LI
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></LI
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><LI
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><LI
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><P
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><P
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>switching to a different template</P
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>switching to a different template</P
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></LI
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></LI
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><LI
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><LI
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><P
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><P
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>adding or removing a package</P
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>adding or removing a package</P
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></LI
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></LI
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><LI
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><LI
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><P
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><P
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>changing the version of a package</P
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>changing the version of a package</P
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></LI
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></LI
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></OL
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></OL
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><P
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><P
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>Whenever <B
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>Whenever <B
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CLASS="COMMAND"
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CLASS="COMMAND"
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>ecosconfig</B
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>ecosconfig</B
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> generates or
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> generates or
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updates an <SPAN
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updates an <SPAN
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CLASS="PRODUCTNAME"
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CLASS="PRODUCTNAME"
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>eCos</SPAN
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>eCos</SPAN
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> configuration, it generates a configuration
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> configuration, it generates a configuration
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save file.</P
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save file.</P
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><P
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><P
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>Suppose that the configuration was first created using
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>Suppose that the configuration was first created using
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the following command line: </P
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the following command line: </P
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><TABLE
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><TR
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><TR
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><TD
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><TD
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><PRE
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><PRE
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CLASS="SCREEN"
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CLASS="SCREEN"
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>$ ecosconfig new stdeval1</PRE
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>$ ecosconfig new stdeval1</PRE
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></TD
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></TD
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></TR
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></TR
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></TABLE
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></TABLE
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><P
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><P
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>To change the target hardware to the Cogent CMA28x
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>To change the target hardware to the Cogent CMA28x
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PowerPC board, the following command would be needed:
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PowerPC board, the following command would be needed:
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</P
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</P
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><TABLE
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><TR
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><TR
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><TD
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><TD
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><PRE
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><PRE
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CLASS="SCREEN"
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CLASS="SCREEN"
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>$ ecosconfig target cma28x</PRE
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>$ ecosconfig target cma28x</PRE
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></TD
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></TD
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></TR
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></TR
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></TABLE
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></TABLE
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><P
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><P
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>To switch to the PowerPC simulator instead: </P
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>To switch to the PowerPC simulator instead: </P
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><TABLE
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><TABLE
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BORDER="5"
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><TR
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><TR
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><TD
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><TD
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><PRE
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><PRE
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CLASS="SCREEN"
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CLASS="SCREEN"
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>$ ecosconfig target psim</PRE
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>$ ecosconfig target psim</PRE
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></TD
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></TD
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></TR
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></TR
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></TABLE
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></TABLE
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><P
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><P
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>As the hardware changes, hardware-related packages such as
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>As the hardware changes, hardware-related packages such as
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the HAL packages and device drivers will be added to and removed
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the HAL packages and device drivers will be added to and removed
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from the configuration as appropriate. </P
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from the configuration as appropriate. </P
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><P
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><P
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>To remove any package from the current configuration, use
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>To remove any package from the current configuration, use
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the <B
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the <B
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CLASS="COMMAND"
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CLASS="COMMAND"
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>remove</B
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>remove</B
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> command: </P
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> command: </P
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><TABLE
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><TR
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><TR
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><TD
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><TD
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><PRE
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><PRE
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CLASS="SCREEN"
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CLASS="SCREEN"
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>$ ecosconfig remove uitron</PRE
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>$ ecosconfig remove uitron</PRE
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></TD
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></TD
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></TR
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></TR
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></TABLE
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></TABLE
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><P
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><P
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>You can disable multiple packages using multiple arguments,
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>You can disable multiple packages using multiple arguments,
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for example: </P
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for example: </P
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><TABLE
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><TR
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><TD
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><TD
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><PRE
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><PRE
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CLASS="SCREEN"
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CLASS="SCREEN"
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>$ ecosconfig remove uitron libm</PRE
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>$ ecosconfig remove uitron libm</PRE
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></TD
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></TD
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></TR
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></TR
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></TABLE
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></TABLE
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><P
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><P
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>If this turns out to have been a mistake then you can
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>If this turns out to have been a mistake then you can
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re-enable one or more packages with the
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re-enable one or more packages with the
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<B
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<B
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CLASS="COMMAND"
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CLASS="COMMAND"
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>add</B
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>add</B
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> command: </P
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> command: </P
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><TABLE
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><TR
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><TR
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><TD
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><TD
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><PRE
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><PRE
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CLASS="SCREEN"
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CLASS="SCREEN"
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>$ ecosconfig add libm</PRE
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>$ ecosconfig add libm</PRE
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></TD
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></TD
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></TR
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></TR
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></TABLE
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></TABLE
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><P
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><P
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>Changing the desired version for a package is also
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>Changing the desired version for a package is also
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straightforward:</P
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straightforward:</P
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><TABLE
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><TR
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><TR
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><TD
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><TD
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><PRE
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><PRE
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CLASS="SCREEN"
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CLASS="SCREEN"
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>$ ecosconfig version v2_1 kernel</PRE
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>$ ecosconfig version v2_1 kernel</PRE
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></TD
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></TD
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></TR
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></TR
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></TABLE
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></TABLE
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><P
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><P
|
>It is necessary to regenerate the build tree and header
|
>It is necessary to regenerate the build tree and header
|
files following any changes to the configuration before
|
files following any changes to the configuration before
|
rebuilding <SPAN
|
rebuilding <SPAN
|
CLASS="PRODUCTNAME"
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CLASS="PRODUCTNAME"
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>eCos</SPAN
|
>eCos</SPAN
|
>:</P
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>:</P
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><TR
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><TR
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><TD
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><TD
|
><PRE
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><PRE
|
CLASS="SCREEN"
|
CLASS="SCREEN"
|
>$ ecosconfig tree</PRE
|
>$ ecosconfig tree</PRE
|
></TD
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></TD
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