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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 >TX49 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="TX39 Architectural Simulator Setup" HREF="setup-tx39-sim.html"><LINK REL="NEXT" TITLE="VR4300 Hardware Setup" HREF="setup-vr4300-vrc4373.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-tx39-sim.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-vr4300-vrc4373.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><DIV CLASS="SECT1" ><H1 CLASS="SECT1" ><A NAME="SETUP-TX49-REF4955">TX49 Hardware Setup</H1 ><P >The eCos installation CD contains a copy of the eCos GDB stubs in SREC format which must be programmed into the board’s FLASH memory.</P ><DIV CLASS="SECT2" ><H2 CLASS="SECT2" ><A NAME="AEN3296">Preparing the GDB stubs</H2 ><P >These stub preparation steps are not strictly necessary as the eCos distribution ships with pre-compiled stubs in the directory <TT CLASS="FILENAME" >loaders/tx49-ref4955</TT > relative to the installation root.</P ><DIV CLASS="SECT3" ><H3 CLASS="SECT3" ><A NAME="AEN3300">Building the GDB stub image with the eCos Configuration Tool</H3 ><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 TX49 REF4955 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 >Build eCos stubs 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 images have the prefix gdb_module.</P ></LI ></OL ></DIV ><DIV CLASS="SECT3" ><H3 CLASS="SECT3" ><A NAME="AEN3318">Building the GDB stub image with ecosconfig</H3 ><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:</P ><TABLE BORDER="5" BGCOLOR="#E0E0F0" WIDTH="70%" ><TR ><TD ><PRE CLASS="PROGRAMLISTING" >$ ecosconfig new ref4955 stubs </PRE ></TD ></TR ></TABLE ></LI ><LI ><P >Enter the commands:</P ><TABLE BORDER="5" BGCOLOR="#E0E0F0" WIDTH="70%" ><TR ><TD ><PRE CLASS="PROGRAMLISTING" >$ ecosconfig tree $ make</PRE ></TD ></TR ></TABLE ></LI ><LI ><P >When the build completes, the image files can be found in the bin/ subdirectory of the install tree. GDB stub images have the prefix gdb_module.</P ></LI ></OL ></DIV ></DIV ><DIV CLASS="SECT2" ><H2 CLASS="SECT2" ><A NAME="AEN3331">Installing GDB stubs into FLASH</H2 ><P >Boot into the board’s firmware in little-endian mode:</P ><P >Set the switches like this: </P ><P >SW1: 10000000 (first lever up, the rest down) SW2: 10000010</P ><P >Connect serial cable on the lower connector, configure terminal emulator for 38400, 8-N-1.</P ><P >When booting the board, you should get this prompt:</P ><TABLE BORDER="5" BGCOLOR="#E0E0F0" WIDTH="70%" ><TR ><TD ><PRE CLASS="PROGRAMLISTING" >HCP5 rev 0.9B . HCP5?</PRE ></TD ></TR ></TABLE ><P >Select o (option), a (FLASH) and b (boot write). You should see this:</P ><TABLE BORDER="5" BGCOLOR="#E0E0F0" WIDTH="70%" ><TR ><TD ><PRE CLASS="PROGRAMLISTING" >Boot ROM Write ROM address-ffffffffbd000000, Boot Bus-[32bit] ID2 0 4 ffffffffa002ad40 zzz SS-40000 IV-1 CS-20000 CC-2 Flash ROM-[28F640J5], [16bit chip] * 2 * 1 Block size-00040000 count-64 ROM adr ffffffffbd000000-ffffffffbe000000 mask-00fc0000 Send Srecord file sa=00000000 size=ffffffffffffffff ra=fffffffffe000000 </PRE ></TD ></TR ></TABLE ><P >Now send the stub SREC data down to the board using the terminal emulator’s ‘send ASCII’ (or similar) functionality. </P ><P >Red Hat has experienced some sensitivity to how fast the data is written to the board. Under Windows you should configure Minicom to use a line delay of 100 milliseconds. Under Linux, use the slow_cat.tcl script:</P ><TABLE BORDER="5" BGCOLOR="#E0E0F0" WIDTH="70%" ><TR ><TD ><PRE CLASS="PROGRAMLISTING" >% cd BASE_DIR/packages/hal/mips/ref4955/<TT CLASS="REPLACEABLE" ><I ><version></I ></TT >/misc % slow_cat.tcl < [path]/gdb_module.srec > /dev/ttyS0</PRE ></TD ></TR ></TABLE ><P >Power off the board, and change it to boot the GDB stubs in big-endian mode by setting the switches like this:</P ><P >SW1: 00000000 (all levers down) SW2: 10001010</P ><P >The GDB stubs allow communication with GDB using the serial port at connector PJ7A (lower connector). 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 a straight through serial cable.</P ></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-tx39-sim.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-vr4300-vrc4373.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >TX39 Architectural Simulator 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" >VR4300 Hardware Setup</TD ></TR ></TABLE ></DIV ></BODY ></HTML >
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