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<!-- Copyright (C) 2003 Red Hat, Inc.                                -->
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>AM33 STB Hardware Setup</TITLE
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TITLE="Target Setup"
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TITLE="MN10300 Architectural Simulator Setup"
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TITLE="TX39 Hardware Setup"
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>eCos User Guide</TH
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><TD
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ALIGN="left"
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VALIGN="bottom"
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><A
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HREF="setup-mn10300-sim.html"
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ACCESSKEY="P"
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>Prev</A
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></TD
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><TD
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WIDTH="80%"
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ALIGN="center"
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VALIGN="bottom"
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>Appendix A. Target Setup</TD
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><TD
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WIDTH="10%"
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ALIGN="right"
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VALIGN="bottom"
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><A
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HREF="setup-tx39-jmr3904.html"
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>Next</A
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><DIV
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CLASS="SECT1"
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><H1
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CLASS="SECT1"
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><A
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NAME="SETUP-AM33-STB">AM33 STB Hardware Setup</H1
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><P
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>The Matsushita AM33 STB System Reference Board may be used
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in two modes: via a JTAG debugger, or by means of a GDB stub ROM.</P
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><DIV
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CLASS="SECT2"
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><H2
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CLASS="SECT2"
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><A
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NAME="AEN3223">Use with GDB Stub ROM</H2
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><P
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>The eCos Developer&#8217;s Kit package comes with a ROM
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image which provides GDB support for
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the Matsushita(R) AM33 STB System Reference Board. To install the
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GDB stub ROM requires the use of the JTAG debugger and the Flash ROM
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programming code available from Matsushita. An image of this ROM
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is also provided at <TT
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CLASS="FILENAME"
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>loaders/am33-stb/gdbload.bin</TT
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> under
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the root of your eCos installation.</P
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><P
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>Ensure that there is a Flash ROM card in MAIN MEMORY SLOT &lt;0&#62;.
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Follow the directions for programming a Flash ROM supplied with
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the programming software.</P
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><P
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>The final programming of the ROM will need to be done with
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a command similar to the following:</P
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><TABLE
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><TD
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><PRE
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CLASS="PROGRAMLISTING"
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>fdown "gdbload.bin",0x80000000,16,1</PRE
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></TD
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></TR
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></TABLE
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><P
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>Once the ROM has been programmed, close down the JTAG debugger,
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turn the STB off, and disconnect the JTAG cable. Ensure that the
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hardware switches are in the following configuration:</P
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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="PROGRAMLISTING"
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>U U D D D U D D
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D = lower part of rocker switch pushed in
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U = upper part of rocker switch pushed in</PRE
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></TD
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></TR
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></TABLE
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><P
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>This is also the configuration required by the Flash programming
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code, so it should not be necessary to change these.</P
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><P
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>Restart the STB and the stub ROM will now be able to communicate
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with <SPAN
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CLASS="PRODUCTNAME"
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>GDB</SPAN
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>. eCos programs should be built
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with RAM startup.</P
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><P
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>Programs can then be downloaded via a standard RS232 null
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modem serial cable connected to the SERIAL1 connector on the STB
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front panel (the AM33&quot;s serial port 0). This line is programmed
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to run at 38400 baud, 8 data bits, no parity and 1 stop bit (8-N-1)
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with no flow control. A gender changer may also be required. Diagnostic
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output will be output to GDB using the same connection.</P
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><P
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>This procedure also applies for programming ROM startup eCos
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programs into ROM, given a binary format image of the program from<TABLE
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><TR
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><TD
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><PRE
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CLASS="PROGRAMLISTING"
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> mn10300-elf-objcopy.</PRE
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></TD
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></P
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></DIV
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><DIV
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CLASS="SECT2"
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><H2
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CLASS="SECT2"
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><A
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NAME="AEN3238">Use with the JTAG debugger</H2
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><P
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>To use eCos from the JTAG debugger, executables must be built
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with ROM startup and then downloaded via the JTAG debugger. For
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this to work there must be an SDRAM memory card in SUB MEMORY SLOT &lt;0&#62; and
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the hardware switches on the front panel set to the following: </P
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><TABLE
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><PRE
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CLASS="PROGRAMLISTING"
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>D U D D D U D D
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D = lower part of rocker switch pushed in
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U = upper part of rocker switch pushed in</PRE
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></TD
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></TR
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></TABLE
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><P
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>Connect the JTAG unit and run the debugger as described in
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the documentation that comes with it.</P
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><P
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>eCos executables should be renamed to have a &#8220;.out&#8221; extension
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and may then be loaded using the debugger&quot;s &#8220;l&#8221; or &#8220;lp&#8221; commands.</P
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><P
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>Diagnostic output generated by the program will be sent out
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of the AM33&quot;s serial port 0 which is connected to the SERIAL1
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connector on the STB front panel. This line is programmed to run
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at 38400 baud, 8 data bits, no parity, and one stop bit (8-N-1)
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with no flow control. Connection to the host computer should be
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using a standard RS232 null modem serial cable. A gender changer
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may also be required.</P
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></DIV
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><DIV
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CLASS="SECT2"
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><H2
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CLASS="SECT2"
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><A
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NAME="AEN3245">Building the GDB stub ROM image</H2
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><P
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>eCos comes with a pre-built GDB stub ROM image for the AM33-STB
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platform. This can be found at <TT
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CLASS="FILENAME"
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>loaders/am33-stb/gdbload.bin</TT
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> relative
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to the eCos installation directory.</P
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><P
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>If necessary, the ROM image can be re-built as follows:</P
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><P
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></P
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><OL
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TYPE="1"
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><LI
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><P
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>               On Windows hosts, open a Bash session using
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<SPAN
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CLASS="emphasis"
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><I
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CLASS="EMPHASIS"
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>Start-&#62;Programs-&#62;Red Hat eCos-&#62;eCos
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Development Environment</I
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></SPAN
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></P
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></LI
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><LI
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><P
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>Create a build directory and cd into it</P
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></LI
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><LI
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><P
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>Run (all as one line):
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><TR
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><TD
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><PRE
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CLASS="PROGRAMLISTING"
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>cygtclsh80 BASE_DIR/packages/pkgconf.tcl                          \
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  --target=mn10300_am33 --platform stb --startup rom              \
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  --disable-kernel --disable-uitron --disable-libc --disable-libm \
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  --disable-io --disable-io_serial --disable-wallclock
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--disable-watchdog</PRE
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></TD
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></TR
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></TABLE
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>
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            </P
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><P
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>where BASE_DIR is the path to the eCos installation
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directory.</P
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></LI
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><LI
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><P
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>Edit the configuration file
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<TT
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CLASS="FILENAME"
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>pkgconf/hal.h</TT
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>
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 in the build directory tree by ensuring the following configuration
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options are set as follows:
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<TABLE
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><TR
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><TD
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><PRE
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CLASS="PROGRAMLISTING"
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>#define CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS
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#define CYGDBG_HAL_DEBUG_GDB_BREAK_SUPPORT
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#undef  CYGDBG_HAL_DEBUG_GDB_CTRLC_SUPPORT
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#define CYGDBG_HAL_DEBUG_GDB_THREAD_SUPPORT
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#define CYG_HAL_ROM_MONITOR</PRE
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></TD
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></TR
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></TABLE
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>
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            </P
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></LI
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><LI
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><P
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>Run: make</P
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></LI
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><LI
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><P
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>Run: make -C hal/common/current/current/src/stubrom</P
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></LI
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><LI
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><P
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>The file
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<TT
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CLASS="FILENAME"
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>hal/common/current/src/stubrom</TT
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>
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 will be an ELF format executable of the ROM image. Use mn10300-elf-objcopy to
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convert this to the appropriate format for loading into the Matsushita
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FLASH ROM programmer, mode &#8220;binary&#8221; in this case:
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<TABLE
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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="PROGRAMLISTING"
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>$ mn10300-elf-objcopy -O binary hal/common/current/src/stubrom/ \
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  stubrom stubrom.img</PRE
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></TD
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></TR
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></TABLE
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ALIGN="left"
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><A
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HREF="setup-mn10300-sim.html"
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ACCESSKEY="P"
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>Prev</A
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WIDTH="34%"
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ALIGN="center"
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><A
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HREF="ecos-user-guide.html"
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>Home</A
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HREF="setup-tx39-jmr3904.html"
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>Next</A
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><TR
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><TD
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WIDTH="33%"
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ALIGN="left"
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>MN10300 Architectural Simulator Setup</TD
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><TD
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WIDTH="34%"
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ALIGN="center"
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VALIGN="top"
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><A
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HREF="appendix-target-setup.html"
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>Up</A
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><TD
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>TX39 Hardware Setup</TD
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