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<!-- Copyright (C) 2003 Red Hat, Inc.                                -->
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<HTML
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><TITLE
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>fis free</TITLE
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><meta name="MSSmartTagsPreventParsing" content="TRUE">
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<META
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CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+
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"><LINK
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REL="HOME"
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TITLE="eCos Reference Manual"
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HREF="ecos-ref.html"><LINK
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TITLE="Flash Image System (FIS)"
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TITLE="fis list"
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>eCos Reference Manual</TH
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WIDTH="10%"
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><H1
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><A
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NAME="FIS-FREE-COMMAND">fis free</H1
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><DIV
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CLASS="REFNAMEDIV"
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><A
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NAME="AEN3991"
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></A
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><H2
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>Name</H2
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>fis free&nbsp;--&nbsp;Free flash image</DIV
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><DIV
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CLASS="REFSYNOPSISDIV"
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><A
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NAME="AEN3994"><H2
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>Synopsis</H2
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><P
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><B
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CLASS="COMMAND"
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>fis free</B
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> </P
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></DIV
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><DIV
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CLASS="REFSECT1"
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><A
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NAME="AEN3997"
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></A
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><H2
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>Description</H2
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><P
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>This command shows which areas of the flash memory are currently
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not in use. When a block contains non-erased contents it is considered
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in use. Since it is possible to force an image to be loaded at a
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particular flash location, this command can be used to check whether
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that location is in use by any other image.</P
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><DIV
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CLASS="NOTE"
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><BLOCKQUOTE
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CLASS="NOTE"
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><P
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><B
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>Note: </B
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>There is currently no cross-checking between actual flash
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contents and the FIS directory, which mans that there could be a
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segment of flash which is not erased that does not correspond to a
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named image, or vice-versa.</P
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></BLOCKQUOTE
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></DIV
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><DIV
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CLASS="REFSECT1"
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><A
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NAME="AEN4002"
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></A
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><H2
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>Examples</H2
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><P
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>Show free flash areas.
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<TABLE
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BORDER="5"
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BGCOLOR="#E0E0F0"
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WIDTH="70%"
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><TR
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><TD
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><PRE
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CLASS="SCREEN"
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>RedBoot&#62; <TT
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CLASS="USERINPUT"
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><B
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>fis free</B
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></TT
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>
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        0xA0040000 .. 0xA07C0000
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        0xA0840000 .. 0xA0FC0000</PRE
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HREF="fis-list-command.html"
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>Prev</A
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>fis list</TD
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WIDTH="34%"
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HREF="flash-image-system.html"
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>Up</A
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>fis create</TD
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