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<!-- Copyright (C) 2003 Red Hat, Inc.                                -->
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<HTML
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><HEAD
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><TITLE
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>SH4/CQ7750 Hardware Setup</TITLE
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><meta name="MSSmartTagsPreventParsing" content="TRUE">
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<META
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"><LINK
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TITLE="eCos User Guide"
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REL="UP"
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TITLE="Target Setup"
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HREF="appendix-target-setup.html"><LINK
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REL="PREVIOUS"
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TITLE="SH3/SE77x9 Hardware Setup"
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HREF="setup-sh-se77x9.html"><LINK
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REL="NEXT"
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TITLE="SH4/SE7751 Hardware Setup"
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HREF="setup-sh-se7751.html"></HEAD
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><BODY
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CLASS="SECT1"
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><TR
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><TH
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COLSPAN="3"
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ALIGN="center"
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>eCos User Guide</TH
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></TR
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><TR
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><TD
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WIDTH="10%"
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ALIGN="left"
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VALIGN="bottom"
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><A
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HREF="setup-sh-se77x9.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-sh-se7751.html"
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ACCESSKEY="N"
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>Next</A
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></TD
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></TR
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></TABLE
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><HR
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ALIGN="LEFT"
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WIDTH="100%"></DIV
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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-SH-CQ7750">SH4/CQ7750 Hardware Setup</H1
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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="AEN4195">Preparing the board</H2
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><P
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>Make sure the DIP switches on the board are set as follows:
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  </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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>SW1-1 ON
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SW1-2 OFF
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SW1-3 ON
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SW1-4 OFF</PRE
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></TD
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></TR
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></TABLE
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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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>SW2-1 ON
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SW2-2 ON
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SW2-3 OFF
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SW2-4 OFF</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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>If you are using a straight through serial cable which has
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flow control lines, you will also need to cut JP12 (5-6) as the
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flow control lines can cause NMIs.</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="AEN4201">eCos GDB Stubs</H2
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><P
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>The eCos installation CD contains a copy of the eCos GDB stubs
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in  binary format which must be programmed into an EPROM or FLASH
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and  installed on the board.</P
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><DIV
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CLASS="SECT3"
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><H3
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CLASS="SECT3"
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><A
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NAME="AEN4204">Preparing the GDB stubs</H3
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><P
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>These stub preparation steps are not strictly necessary as
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the eCos distribution ships with pre-compiled stubs in the directory
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loaders/sh3-cq7708 relative to the installation root.</P
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></DIV
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><DIV
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CLASS="SECT3"
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><H3
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CLASS="SECT3"
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><A
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NAME="AEN4207">Building the GDB stub image with the eCos Configuration Tool</H3
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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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>Start with a new document - selecting the
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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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>File-&#62;New</I
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></SPAN
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>
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 menu item if necessary to do this.</P
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></LI
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><LI
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><P
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>Choose the
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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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>Build-&#62;Templates</I
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></SPAN
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>
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 menu item, and then select the SH3 cq7708 hardware.</P
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></LI
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><LI
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><P
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>While still displaying the
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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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>Build-&#62;Templates</I
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></SPAN
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>
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 dialog box, select the stubs package template to build a GDB stub.
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Click
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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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>OK</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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> Build eCos stubs 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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>Build-&#62;Library</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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> When the build completes, the image files can be found
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in the
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<TT
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CLASS="FILENAME"
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>bin/</TT
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>
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 subdirectory of the install tree. GDB stub images have the prefix
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<TT
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CLASS="FILENAME"
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>gdb_module</TT
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>.</P
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></LI
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></OL
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></DIV
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><DIV
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CLASS="SECT3"
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><H3
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CLASS="SECT3"
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><A
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NAME="AEN4227">Building the GDB stub image with ecosconfig</H3
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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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>Make an empty directory to contain the build tree,
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and cd into it.</P
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></LI
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><LI
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><P
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> To build a GDB stub ROM image, enter the command:
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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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>$ ecosconfig new cq7708 stubs </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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></LI
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><LI
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><P
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> Enter the commands:
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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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>$ ecosconfig tree
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$ make</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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></LI
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><LI
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><P
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>When the build completes, the image files can be found
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in the
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<TT
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CLASS="FILENAME"
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>bin/</TT
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>
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 subdirectory of the install tree. GDB stub images have the prefix
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<TT
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CLASS="FILENAME"
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>gdb_module</TT
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>.  </P
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></LI
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></OL
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></DIV
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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="AEN4242">Programming the stubs in EPROM/FLASH</H2
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><P
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>The board can use different sizes of ROMs. Use this table
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to adjust the board&#8217;s jumpers to the ROM sizes you are
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using.</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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>size(kbit)    JP7   JP9   JP10   JP11
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256           2-3   2-3   open   open
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512           1-2   2-3   open   open
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1000          1-2   open  open   2-3
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2000          1-2   1-2   open   2-3
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4000          1-2   1-2   short  2-3
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8000          1-2   1-2   short  1-2</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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>There are two ways to program the stubs. We advise you to
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use method 1, since it is simpler. Method 2 is unsupported and requires
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a bit of fiddling.</P
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><P
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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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>Method 1: </I
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></SPAN
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> </P
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><P
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>Program the binary stub image into two EPROMs, E and O. EPROM
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E should  contain the even bytes, and O the odd bytes (your EPROM
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programmer should  have the ability to split the image).</P
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><P
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>EPROM E should be installed in socket IC8, and EPROM O should
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be  installed in socket IC4.</P
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><P
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>Set JP6 to 16 bit mode (1-2 soldered, 2-3 cut)  Set SW1-4
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to ON and SW2-1 to OFF.</P
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><P
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></P
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><P
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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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>Method2: </I
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></SPAN
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> </P
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><P
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>Assuming that the stub binary is smaller than 32 KB, you can
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install it in a single EPROM.</P
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><P
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>Compile the <TT
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CLASS="FILENAME"
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>mkcqrom.c</TT
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> program
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found in the <TT
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CLASS="FILENAME"
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>misc</TT
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> directory.</P
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><P
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>Use it to convert the binary image to the required format.
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See the  <TT
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CLASS="FILENAME"
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>mkcqrom.c</TT
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> source for a
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description of what is done, and why it is  necessary. </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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> % mkcqrom gdb_module.bin gdb_mangled.bin</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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>Program the <TT
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CLASS="FILENAME"
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>gdb_mangled.bin</TT
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> file
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into an EPROM and install it in  socket IC4</P
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><P
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>Set JP6 to 8 bit mode (cut 1-2, solder 2-3)</P
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><P
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>The GDB stubs allow communication with GDB using the serial
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port at connector CN7. The communication parameters are fixed at
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38400 baud, 8 data bits, no parity bit and 1 stop bit (8-N-1). No
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flow control is employed. Connection to the host computer should
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be made using a  straight through serial cable.</P
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></DIV
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></DIV
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ALIGN="left"
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VALIGN="top"
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><A
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HREF="setup-sh-se77x9.html"
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ACCESSKEY="P"
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>Prev</A
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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="ecos-user-guide.html"
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>Home</A
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HREF="setup-sh-se7751.html"
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>Next</A
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WIDTH="33%"
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ALIGN="left"
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VALIGN="top"
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>SH3/SE77x9 Hardware Setup</TD
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><TD
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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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ACCESSKEY="U"
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>Up</A
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>SH4/SE7751 Hardware Setup</TD
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