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><H1
><A
NAME="FIS-ERASE-COMMAND">fis erase</H1
><DIV
CLASS="REFNAMEDIV"
><A
NAME="AEN4305"
></A
><H2
>Name</H2
>fis erase -- Erase flash area</DIV
><DIV
CLASS="REFSYNOPSISDIV"
><A
NAME="AEN4308"><H2
>Synopsis</H2
><P
><B
CLASS="COMMAND"
>fis erase</B
> {-f <TT
CLASS="REPLACEABLE"
><I
>flash_address</I
></TT
>} {-l <TT
CLASS="REPLACEABLE"
><I
>length</I
></TT
>}</P
></DIV
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CLASS="REFSECT1"
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><H2
>Arguments</H2
><DIV
CLASS="INFORMALTABLE"
><A
NAME="AEN4317"><P
></P
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><THEAD
><TR
><TH
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ALIGN="LEFT"
VALIGN="TOP"
>Name</TH
><TH
WIDTH="25%"
ALIGN="LEFT"
VALIGN="TOP"
>Type</TH
><TH
WIDTH="25%"
ALIGN="LEFT"
VALIGN="TOP"
>Description</TH
><TH
WIDTH="25%"
ALIGN="LEFT"
VALIGN="TOP"
>Default</TH
></TR
></THEAD
><TBODY
><TR
><TD
WIDTH="25%"
ALIGN="LEFT"
VALIGN="TOP"
><TT
CLASS="REPLACEABLE"
><I
>flash_address</I
></TT
></TD
><TD
WIDTH="25%"
ALIGN="LEFT"
VALIGN="TOP"
>Number</TD
><TD
WIDTH="25%"
ALIGN="LEFT"
VALIGN="TOP"
>Address of area to be erased.</TD
><TD
WIDTH="25%"
ALIGN="LEFT"
VALIGN="TOP"
> </TD
></TR
><TR
><TD
WIDTH="25%"
ALIGN="LEFT"
VALIGN="TOP"
><TT
CLASS="REPLACEABLE"
><I
>length</I
></TT
></TD
><TD
WIDTH="25%"
ALIGN="LEFT"
VALIGN="TOP"
>Number</TD
><TD
WIDTH="25%"
ALIGN="LEFT"
VALIGN="TOP"
>Length of area to be erased.</TD
><TD
WIDTH="25%"
ALIGN="LEFT"
VALIGN="TOP"
> </TD
></TR
></TBODY
></TABLE
><P
></P
></DIV
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN4342"
></A
><H2
>Description</H2
><P
>This command is used to erase a portion of flash memory forcibly. There
is no cross-checking to ensure that the area being erased does not correspond
to an existing image.</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN4345"
></A
><H2
>Examples</H2
><P
>Erase an area of the flash
<TABLE
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><TR
><TD
><PRE
CLASS="SCREEN"
>RedBoot> <TT
CLASS="USERINPUT"
><B
>fis erase -f 0xa0040000 -l 0x20000</B
></TT
>
... Erase from 0xa0040000-0xa0060000: .</PRE
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