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<!-- Copyright (C) 2003 Red Hat, Inc. --> <!-- This material may be distributed only subject to the terms --> <!-- and conditions set forth in the Open Publication License, v1.0 --> <!-- or later (the latest version is presently available at --> <!-- http://www.opencontent.org/openpub/). --> <!-- Distribution of the work or derivative of the work in any --> <!-- standard (paper) book form is prohibited unless prior --> <!-- permission is obtained from the copyright holder. --> <HTML ><HEAD ><TITLE >SH3/EDK7708 Hardware Setup</TITLE ><meta name="MSSmartTagsPreventParsing" content="TRUE"> <META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+ "><LINK REL="HOME" TITLE="eCos User Guide" HREF="ecos-user-guide.html"><LINK REL="UP" TITLE="Target Setup" HREF="appendix-target-setup.html"><LINK REL="PREVIOUS" TITLE=" Compaq iPAQ PocketPC Hardware Setup" HREF="setup-arm-ipaq.html"><LINK REL="NEXT" TITLE="SH3/CQ7708 Hardware Setup" HREF="setup-sh-cq7708.html"></HEAD ><BODY CLASS="SECT1" BGCOLOR="#FFFFFF" TEXT="#000000" LINK="#0000FF" VLINK="#840084" ALINK="#0000FF" ><DIV CLASS="NAVHEADER" ><TABLE SUMMARY="Header navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TH COLSPAN="3" ALIGN="center" >eCos User Guide</TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="bottom" ><A HREF="setup-arm-ipaq.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" >Appendix A. Target Setup</TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="setup-sh-cq7708.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><DIV CLASS="SECT1" ><H1 CLASS="SECT1" ><A NAME="SETUP-SH-EDK7708">SH3/EDK7708 Hardware Setup</H1 ><P >The eCos Developer’s Kit package comes with a ROM which provides GDB support for the Hitachi EDK7708 board (a big-endian and a little-endian version). Images of these ROMs are also provided at <TT CLASS="FILENAME" >loaders/sh-edk7708/gdbload.bin</TT > and <TT CLASS="FILENAME" >loaders/sh-edk7708le/gdbload.bin</TT > under the root of your eCos installation.</P ><P >The ROM is installed to socket U6 on the board. When using the big-endian ROM, jumper 9 must be set to 2-3. When using the little-endian ROM, jumper 9 must be set to 1-2. Attention should be paid to the correct orientation of the ROM during installation. Only replace the board"s existing ROM using a proper PLCC extraction tool, as the socket would otherwise risk being damaged. </P ><P >If you are going to program a new ROM or FLASH using the binary image, you may have to experiment to get the right byte-order in the device. Depending on the programming software you use, it might be necessary to enable byte-swapping. If the GDB stub ROM/FLASH you program does not work, try reversing the byte-order.</P ><P >The GDB stub in the EPROM allows communication with GDB using the serial port at connector J1. The communication parameters are fixed at 38400 baud, 8 data bits, no parity bit and 1 stop bit (8-N-1). No flow control is employed. Connection to the host computer should be made using the dedicated serial cable included in the EDK package. </P ><DIV CLASS="SECT2" ><H2 CLASS="SECT2" ><A NAME="AEN4067">Installing the Stubs into FLASH</H2 ><DIV CLASS="SECT3" ><H3 CLASS="SECT3" ><A NAME="AEN4069">Preparing the Binaries</H3 ><P >These two binary preparation steps are not strictly necessary as the eCos distribution ships with pre-compiled binaries in the directory loaders/sh-edk7708 and loaders/sh-edk7708le relative to the installation root.</P ><DIV CLASS="SECT4" ><H4 CLASS="SECT4" ><A NAME="AEN4072">Building the ROM images with the eCos Configuration Tool</H4 ><P ></P ><OL TYPE="1" ><LI ><P >Start with a new document - selecting the <SPAN CLASS="emphasis" ><I CLASS="EMPHASIS" >File->New</I ></SPAN > menu item if necessary to do this.</P ></LI ><LI ><P >Choose the <SPAN CLASS="emphasis" ><I CLASS="EMPHASIS" >Build->Templates</I ></SPAN > menu item, and then select the SH EDK7708 hardware.</P ></LI ><LI ><P >While still displaying the <SPAN CLASS="emphasis" ><I CLASS="EMPHASIS" >Build->Templates</I ></SPAN > dialog box, select the “stubs” package template to build a GDB stub. Click <SPAN CLASS="emphasis" ><I CLASS="EMPHASIS" >OK</I ></SPAN >.</P ></LI ><LI ><P >If building a little-endian image, disable the “Use big-endian mode” option in the SH EDK7708 HAL (CYGHWR_HAL_SH_BIGENDIAN).</P ></LI ><LI ><P >Build eCos using <SPAN CLASS="emphasis" ><I CLASS="EMPHASIS" >Build->Library</I ></SPAN >. </P ></LI ><LI ><P >When the build completes, the image files can be found in the bin/ subdirectory of the install tree. GDB stub ROM images have the prefix “gdb_module”.</P ></LI ></OL ></DIV ><DIV CLASS="SECT4" ><H4 CLASS="SECT4" ><A NAME="AEN4092">Building the ROM images with ecosconfig</H4 ><P ></P ><OL TYPE="1" ><LI ><P >Make an empty directory to contain the build tree, and cd into it.</P ></LI ><LI ><P >To build a GDB stub ROM image, enter the command: <TABLE BORDER="5" BGCOLOR="#E0E0F0" WIDTH="70%" ><TR ><TD ><PRE CLASS="PROGRAMLISTING" >$ ecosconfig new edk7708 stubs</PRE ></TD ></TR ></TABLE > </P ></LI ><LI ><P >If building a little-endian image, uncomment the user value in ecos.ecc for CYGHWR_HAL_SH_BIGENDIAN and change it to 0. </P ></LI ><LI ><P >Enter the commands: <TABLE BORDER="5" BGCOLOR="#E0E0F0" WIDTH="70%" ><TR ><TD ><PRE CLASS="PROGRAMLISTING" >$ ecosconfig tree $ make </PRE ></TD ></TR ></TABLE ></P ></LI ><LI ><P >When the build completes, the image files can be found in the bin/ subdirectory of the install tree. GDB stub ROM images have the prefix “gdb_module”.</P ></LI ></OL ></DIV ></DIV ><DIV CLASS="SECT3" ><H3 CLASS="SECT3" ><A NAME="AEN4107">Installing the Stubs into ROM or FLASH</H3 ><P ></P ><OL TYPE="1" ><LI ><P >Program the binary image file gdb_module.bin into ROM or FLASH referring to the instructions of your ROM programmer.</P ></LI ><LI ><P >Plug the ROM/FLASH into socket U6. If the image is little-endian set jumper 9 to 1-2. If the image is big-endian set jumper 9 to 2-3.</P ></LI ></OL ></DIV ></DIV ></DIV ><DIV CLASS="NAVFOOTER" ><HR ALIGN="LEFT" WIDTH="100%"><TABLE SUMMARY="Footer navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><A HREF="setup-arm-ipaq.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="ecos-user-guide.html" ACCESSKEY="H" >Home</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="setup-sh-cq7708.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >Compaq iPAQ PocketPC Hardware Setup</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="appendix-target-setup.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >SH3/CQ7708 Hardware Setup</TD ></TR ></TABLE ></DIV ></BODY ></HTML >