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><A
><A
NAME="AT91">ARM/ARM7 Atmel AT91 Evaluation Board (EB40)</H1
NAME="AT91">ARM/ARM7 Atmel AT91 Evaluation Board (EB40)</H1
><DIV
><DIV
CLASS="SECT2"
CLASS="SECT2"
><H2
><H2
CLASS="SECT2"
CLASS="SECT2"
><A
><A
NAME="AEN5256">Overview</H2
NAME="AEN5256">Overview</H2
><P
><P
>RedBoot supports both serial ports.
>RedBoot supports both serial ports.
The default serial port settings are 38400,8,N,1. RedBoot
The default serial port settings are 38400,8,N,1. RedBoot
also supports minimal flash management on the EB40.
also supports minimal flash management on the EB40.
However, since the flash device (AT29LV1024) is so small (only the upper 64K is
However, since the flash device (AT29LV1024) is so small (only the upper 64K is
available for general use), only the simple flash write command 'fis
available for general use), only the simple flash write command 'fis
write' is supported.</P
write' is supported.</P
><P
><P
>The following RedBoot configurations are supported:
>The following RedBoot configurations are supported:
 
 
      <DIV
      <DIV
CLASS="INFORMALTABLE"
CLASS="INFORMALTABLE"
><A
><A
NAME="AEN5266"><P
NAME="AEN5266"><P
></P
></P
><TABLE
><TABLE
BORDER="1"
BORDER="1"
CLASS="CALSTABLE"
CLASS="CALSTABLE"
><THEAD
><THEAD
><TR
><TR
><TH
><TH
ALIGN="LEFT"
ALIGN="LEFT"
VALIGN="TOP"
VALIGN="TOP"
>Configuration</TH
>Configuration</TH
><TH
><TH
ALIGN="LEFT"
ALIGN="LEFT"
VALIGN="TOP"
VALIGN="TOP"
>Mode</TH
>Mode</TH
><TH
><TH
ALIGN="LEFT"
ALIGN="LEFT"
VALIGN="TOP"
VALIGN="TOP"
>Description</TH
>Description</TH
><TH
><TH
ALIGN="LEFT"
ALIGN="LEFT"
VALIGN="TOP"
VALIGN="TOP"
>File</TH
>File</TH
></TR
></TR
></THEAD
></THEAD
><TBODY
><TBODY
><TR
><TR
><TD
><TD
ALIGN="LEFT"
ALIGN="LEFT"
VALIGN="TOP"
VALIGN="TOP"
>ROM</TD
>ROM</TD
><TD
><TD
ALIGN="LEFT"
ALIGN="LEFT"
VALIGN="TOP"
VALIGN="TOP"
>[ROM]</TD
>[ROM]</TD
><TD
><TD
ALIGN="LEFT"
ALIGN="LEFT"
VALIGN="TOP"
VALIGN="TOP"
>RedBoot running from the board's flash boot
>RedBoot running from the board's flash boot
              sector.</TD
              sector.</TD
><TD
><TD
ALIGN="LEFT"
ALIGN="LEFT"
VALIGN="TOP"
VALIGN="TOP"
>redboot_ROM.ecm</TD
>redboot_ROM.ecm</TD
></TR
></TR
><TR
><TR
><TD
><TD
ALIGN="LEFT"
ALIGN="LEFT"
VALIGN="TOP"
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>RAM</TD
>RAM</TD
><TD
><TD
ALIGN="LEFT"
ALIGN="LEFT"
VALIGN="TOP"
VALIGN="TOP"
>[RAM]</TD
>[RAM]</TD
><TD
><TD
ALIGN="LEFT"
ALIGN="LEFT"
VALIGN="TOP"
VALIGN="TOP"
>RedBoot running from RAM with RedBoot in the
>RedBoot running from RAM with RedBoot in the
              flash boot sector.</TD
              flash boot sector.</TD
><TD
><TD
ALIGN="LEFT"
ALIGN="LEFT"
VALIGN="TOP"
VALIGN="TOP"
>redboot_RAM.ecm</TD
>redboot_RAM.ecm</TD
></TR
></TR
><TR
><TR
><TD
><TD
ALIGN="LEFT"
ALIGN="LEFT"
VALIGN="TOP"
VALIGN="TOP"
>ROMRAM</TD
>ROMRAM</TD
><TD
><TD
ALIGN="LEFT"
ALIGN="LEFT"
VALIGN="TOP"
VALIGN="TOP"
>[ROMRAM]</TD
>[ROMRAM]</TD
><TD
><TD
ALIGN="LEFT"
ALIGN="LEFT"
VALIGN="TOP"
VALIGN="TOP"
>RedBoot running from RAM, but contained in the
>RedBoot running from RAM, but contained in the
              board's flash boot sector.</TD
              board's flash boot sector.</TD
><TD
><TD
ALIGN="LEFT"
ALIGN="LEFT"
VALIGN="TOP"
VALIGN="TOP"
>redboot_ROMRAM.ecm</TD
>redboot_ROMRAM.ecm</TD
></TR
></TR
></TBODY
></TBODY
></TABLE
></TABLE
><P
><P
></P
></P
></DIV
></DIV
></P
></P
></DIV
></DIV
><DIV
><DIV
CLASS="SECT2"
CLASS="SECT2"
><H2
><H2
CLASS="SECT2"
CLASS="SECT2"
><A
><A
NAME="AEN5290">Initial Installation Method</H2
NAME="AEN5290">Initial Installation Method</H2
><P
><P
>This development board comes with ARM's debug tool, Angel, installed in flash.
>This development board comes with ARM's debug tool, Angel, installed in flash.
At this time, Angel will not be replaced.  Rather, RedBoot will be placed in
At this time, Angel will not be replaced.  Rather, RedBoot will be placed in
the alternate half of flash.  Switch SW1 is used which monitor to boot.  Selecting
the alternate half of flash.  Switch SW1 is used which monitor to boot.  Selecting
SW1 to "lower mem" will choose Angel.  Select SW1 to "Upper mem" for RedBoot once
SW1 to "lower mem" will choose Angel.  Select SW1 to "Upper mem" for RedBoot once
it has been installed.</P
it has been installed.</P
><P
><P
>Set SW1 to "lower mem" and connect serial port A to a host computer.  Using GDB
>Set SW1 to "lower mem" and connect serial port A to a host computer.  Using GDB
from the host and Angel on the board, download the RAM mode image of RedBoot
from the host and Angel on the board, download the RAM mode image of RedBoot
to the board. SW1 should then be set to "upper mem" just before starting RedBoot using
to the board. SW1 should then be set to "upper mem" just before starting RedBoot using
the 'cont' command. Once RedBoot is started, the Angel session must be interrupted (on
the 'cont' command. Once RedBoot is started, the Angel session must be interrupted (on
Linux this can be done using ^Z).  Follow this by connecting to the board using
Linux this can be done using ^Z).  Follow this by connecting to the board using
minicom at 38400-8N1.  At this point, RedBoot will be running on the board in
minicom at 38400-8N1.  At this point, RedBoot will be running on the board in
RAM.  Now, download the ROMRAM mode image and program it to flash.
RAM.  Now, download the ROMRAM mode image and program it to flash.
<TABLE
<TABLE
BORDER="5"
BORDER="5"
BGCOLOR="#E0E0F0"
BGCOLOR="#E0E0F0"
WIDTH="70%"
WIDTH="70%"
><TR
><TR
><TD
><TD
><PRE
><PRE
CLASS="SCREEN"
CLASS="SCREEN"
><TT
><TT
CLASS="USERINPUT"
CLASS="USERINPUT"
><B
><B
>arm-elf-gdb redboot_RAM.elf</B
>arm-elf-gdb redboot_RAM.elf</B
></TT
></TT
>
>
(gdb) <TT
(gdb) <TT
CLASS="USERINPUT"
CLASS="USERINPUT"
><B
><B
>tar rdi s=/dev/ttyS0</B
>tar rdi s=/dev/ttyS0</B
></TT
></TT
>
>
Angel Debug Monitor (serial) 1.04 (Advanced RISC Machines SDT 2.5) for
Angel Debug Monitor (serial) 1.04 (Advanced RISC Machines SDT 2.5) for
AT91EB40 (2.00)
AT91EB40 (2.00)
Angel Debug Monitor rebuilt on Apr 07 2000 at 12:40:31
Angel Debug Monitor rebuilt on Apr 07 2000 at 12:40:31
Serial Rate:   9600
Serial Rate:   9600
Connected to ARM RDI target.
Connected to ARM RDI target.
(gdb) <TT
(gdb) <TT
CLASS="USERINPUT"
CLASS="USERINPUT"
><B
><B
>set $cpsr=0xd3</B
>set $cpsr=0xd3</B
></TT
></TT
>
>
(gdb) <TT
(gdb) <TT
CLASS="USERINPUT"
CLASS="USERINPUT"
><B
><B
>load</B
>load</B
></TT
></TT
>
>
Loading section .rom_vectors, size 0x40 lma 0x2020000
Loading section .rom_vectors, size 0x40 lma 0x2020000
Loading section .text, size 0x7fd8 lma 0x2020040
Loading section .text, size 0x7fd8 lma 0x2020040
Loading section .rodata, size 0x15a0 lma 0x2028018
Loading section .rodata, size 0x15a0 lma 0x2028018
Loading section .data, size 0x2e4 lma 0x20295b8
Loading section .data, size 0x2e4 lma 0x20295b8
Start address 0x2020040 , load size 39068
Start address 0x2020040 , load size 39068
Transfer rate: 6250 bits/sec, 500 bytes/write.</PRE
Transfer rate: 6250 bits/sec, 500 bytes/write.</PRE
></TD
></TD
></TR
></TR
></TABLE
></TABLE
>
>
At this point, set SW1 to "upper mem".
At this point, set SW1 to "upper mem".
<TABLE
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BORDER="5"
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BGCOLOR="#E0E0F0"
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WIDTH="70%"
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><PRE
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CLASS="SCREEN"
CLASS="SCREEN"
>(gdb) <TT
>(gdb) <TT
CLASS="USERINPUT"
CLASS="USERINPUT"
><B
><B
>cont</B
>cont</B
></TT
></TT
>
>
Continuing.</PRE
Continuing.</PRE
></TD
></TD
></TR
></TR
></TABLE
></TABLE
>
>
At this point, suspend the GDB session (use Ctrl-Z) and start a
At this point, suspend the GDB session (use Ctrl-Z) and start a
terminal emulator:
terminal emulator:
<TABLE
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WIDTH="70%"
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><PRE
CLASS="SCREEN"
CLASS="SCREEN"
>RedBoot&#62; <TT
>RedBoot&#62; <TT
CLASS="USERINPUT"
CLASS="USERINPUT"
><B
><B
>version</B
>version</B
></TT
></TT
>
>
 
 
RedBoot(tm) bootstrap and debug environment [RAM]
RedBoot(tm) bootstrap and debug environment [RAM]
Non-certified release, version UNKNOWN - built 14:09:27, Jul 20 2001
Non-certified release, version UNKNOWN - built 14:09:27, Jul 20 2001
 
 
Platform: Atmel AT91/EB40 (ARM7TDMI)
Platform: Atmel AT91/EB40 (ARM7TDMI)
Copyright (C) 2000, 2001, Red Hat, Inc.
Copyright (C) 2000, 2001, Red Hat, Inc.
 
 
RAM: 0x02000000-0x02080000, 0x020116d8-0x0207fd00 available
RAM: 0x02000000-0x02080000, 0x020116d8-0x0207fd00 available
FLASH: 0x01010000 - 0x01020000, 256 blocks of 0x00000100 bytes each.
FLASH: 0x01010000 - 0x01020000, 256 blocks of 0x00000100 bytes each.
 
 
RedBoot&#62; <TT
RedBoot&#62; <TT
CLASS="USERINPUT"
CLASS="USERINPUT"
><B
><B
>load -m ymodem -b %{FREEMEMLO}</B
>load -m ymodem -b %{FREEMEMLO}</B
></TT
></TT
></PRE
></PRE
></TD
></TD
></TR
></TR
></TABLE
></TABLE
>
>
Use minicom to send the file redboot_ROMRAM.srec via YModem.
Use minicom to send the file redboot_ROMRAM.srec via YModem.
<TABLE
<TABLE
BORDER="5"
BORDER="5"
BGCOLOR="#E0E0F0"
BGCOLOR="#E0E0F0"
WIDTH="70%"
WIDTH="70%"
><TR
><TR
><TD
><TD
><PRE
><PRE
CLASS="SCREEN"
CLASS="SCREEN"
>RedBoot&#62; <TT
>RedBoot&#62; <TT
CLASS="USERINPUT"
CLASS="USERINPUT"
><B
><B
>fi wr -f 0x01010000 -b %{FREEMEMLO} -l 0xe100</B
>fi wr -f 0x01010000 -b %{FREEMEMLO} -l 0xe100</B
></TT
></TT
></PRE
></PRE
></TD
></TD
></TR
></TR
></TABLE
></TABLE
>
>
Press the "reset" pushbutton and RedBoot
Press the "reset" pushbutton and RedBoot
should come up on the board.</P
should come up on the board.</P
></DIV
></DIV
><DIV
><DIV
CLASS="SECT2"
CLASS="SECT2"
><H2
><H2
CLASS="SECT2"
CLASS="SECT2"
><A
><A
NAME="AEN5306">Special RedBoot Commands</H2
NAME="AEN5306">Special RedBoot Commands</H2
><P
><P
>None.</P
>None.</P
></DIV
></DIV
><DIV
><DIV
CLASS="SECT2"
CLASS="SECT2"
><H2
><H2
CLASS="SECT2"
CLASS="SECT2"
><A
><A
NAME="AEN5309">Memory Maps</H2
NAME="AEN5309">Memory Maps</H2
><P
><P
>This processor has no MMU, so the only memory map is for physical addresses.
>This processor has no MMU, so the only memory map is for physical addresses.
<TABLE
<TABLE
BORDER="5"
BORDER="5"
BGCOLOR="#E0E0F0"
BGCOLOR="#E0E0F0"
WIDTH="70%"
WIDTH="70%"
><TR
><TR
><TD
><TD
><PRE
><PRE
CLASS="PROGRAMLISTING"
CLASS="PROGRAMLISTING"
>Physical Address Range     Description
>Physical Address Range     Description
-----------------------    ----------------------------------
-----------------------    ----------------------------------
0x00000000 - 0x00000fff    On-chip SRAM
0x00000000 - 0x00000fff    On-chip SRAM
0x01000000 - 0x0101ffff    Flash
0x01000000 - 0x0101ffff    Flash
0x02000000 - 0x0207ffff    RAM
0x02000000 - 0x0207ffff    RAM
0xffe00000 - 0xffffffff    I/O registers
0xffe00000 - 0xffffffff    I/O registers
 
 
The flash based RedBoot image occupies virtual addresses 0x01010000 - 0x0101dfff</PRE
The flash based RedBoot image occupies virtual addresses 0x01010000 - 0x0101dfff</PRE
></TD
></TD
></TR
></TR
></TABLE
></TABLE
></P
></P
></DIV
></DIV
><DIV
><DIV
CLASS="SECT2"
CLASS="SECT2"
><H2
><H2
CLASS="SECT2"
CLASS="SECT2"
><A
><A
NAME="AEN5313">Rebuilding RedBoot</H2
NAME="AEN5313">Rebuilding RedBoot</H2
><P
><P
>These shell variables provide the platform-specific information
>These shell variables provide the platform-specific information
needed for building RedBoot according to the procedure described in
needed for building RedBoot according to the procedure described in
<A
<A
HREF="rebuilding-redboot.html"
HREF="rebuilding-redboot.html"
>Chapter 3</A
>Chapter 3</A
>:
>:
<TABLE
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><PRE
><PRE
CLASS="PROGRAMLISTING"
CLASS="PROGRAMLISTING"
>export TARGET=eb40
>export TARGET=eb40
export ARCH_DIR=arm
export ARCH_DIR=arm
export PLATFORM_DIR=at91</PRE
export PLATFORM_DIR=at91</PRE
></TD
></TD
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></P
></P
><P
><P
>The names of configuration files are listed above with the
>The names of configuration files are listed above with the
description of the associated modes.</P
description of the associated modes.</P
></DIV
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