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>SuperH/SH3(SH7708) Hitachi EDK7708</TITLE
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><A
NAME="EDK7708">SuperH/SH3(SH7708) Hitachi EDK7708</H1
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="AEN7202">Overview</H2
><P
>RedBoot uses
the serial port. The default serial port settings are 38400,8,N,1.</P
><P
>Management of onboard flash is also supported.</P
><P
>The following RedBoot configurations are supported:
<DIV
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>Configuration</TH
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>Mode</TH
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>Description</TH
><TH
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>File</TH
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>ROM</TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
>[ROM]</TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
>RedBoot running from the board's flash boot
sector.</TD
><TD
ALIGN="LEFT"
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>redboot_ROM.ecm</TD
></TR
><TR
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>RAM</TD
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>[RAM]</TD
><TD
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>RedBoot running from RAM with RedBoot in the
flash boot sector.</TD
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>redboot_RAM.ecm</TD
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><P
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><A
NAME="AEN7232">Initial Installation Method</H2
><P
>Program the ROM RedBoot image into flash using an eprom programmer.</P
></DIV
><DIV
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><H2
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><A
NAME="AEN7235">Memory Maps</H2
><P
>RedBoot sets up the following memory map on the EDK7708 board.<TABLE
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><TR
><TD
><PRE
CLASS="PROGRAMLISTING"
>Physical Address Range Description
----------------------- -----------
0x80000000 - 0x8001ffff Flash (AT29LV1024)
0x88000000 - 0x881fffff DRAM
0xa4000000 - 0xa40000ff LED ON
0xb8000000 - 0xb80000ff LED ON</PRE
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><A
NAME="AEN7239">Rebuilding RedBoot</H2
><P
>These shell variables provide the platform-specific information
needed for building RedBoot according to the procedure described in
<A
HREF="rebuilding-redboot.html"
>Chapter 3</A
>:
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><PRE
CLASS="PROGRAMLISTING"
>export TARGET=edk7708
export ARCH_DIR=sh
export PLATFORM_DIR=edk7708</PRE
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><P
>The names of configuration files are listed above with the
description of the associated modes.</P
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