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📁 有关ecos2。0介绍了实时嵌入式的结构以及线程调度的实现和内存的管理等
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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>ARM/ARM7 ARM Evaluator7T</TITLE><meta name="MSSmartTagsPreventParsing" content="TRUE"><METANAME="GENERATOR"CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+"><LINKREL="HOME"TITLE="eCos Reference Manual"HREF="ecos-ref.html"><LINKREL="UP"TITLE="Installation and Testing"HREF="installation-and-testing.html"><LINKREL="PREVIOUS"TITLE="Installation and Testing"HREF="installation-and-testing.html"><LINKREL="NEXT"TITLE="ARM/ARM7+ARM9 ARM Integrator"HREF="integrator.html"></HEAD><BODYCLASS="SECT1"BGCOLOR="#FFFFFF"TEXT="#000000"LINK="#0000FF"VLINK="#840084"ALINK="#0000FF"><DIVCLASS="NAVHEADER"><TABLESUMMARY="Header navigation table"WIDTH="100%"BORDER="0"CELLPADDING="0"CELLSPACING="0"><TR><THCOLSPAN="3"ALIGN="center">eCos Reference Manual</TH></TR><TR><TDWIDTH="10%"ALIGN="left"VALIGN="bottom"><AHREF="installation-and-testing.html"ACCESSKEY="P">Prev</A></TD><TDWIDTH="80%"ALIGN="center"VALIGN="bottom">Chapter 5. Installation and Testing</TD><TDWIDTH="10%"ALIGN="right"VALIGN="bottom"><AHREF="integrator.html"ACCESSKEY="N">Next</A></TD></TR></TABLE><HRALIGN="LEFT"WIDTH="100%"></DIV><DIVCLASS="SECT1"><H1CLASS="SECT1"><ANAME="E7T">ARM/ARM7 ARM Evaluator7T</H1><DIVCLASS="SECT2"><H2CLASS="SECT2"><ANAME="AEN5055">Overview</H2><P>RedBoot supportsboth serial ports for communication and downloads. The default serial portsettings are 38400,8,N,1.</P><P>The following RedBoot configurations are supported:      <DIVCLASS="INFORMALTABLE"><ANAME="AEN5065"><P></P><TABLEBORDER="1"CLASS="CALSTABLE"><THEAD><TR><THALIGN="LEFT"VALIGN="TOP">Configuration</TH><THALIGN="LEFT"VALIGN="TOP">Mode</TH><THALIGN="LEFT"VALIGN="TOP">Description</TH><THALIGN="LEFT"VALIGN="TOP">File</TH></TR></THEAD><TBODY><TR><TDALIGN="LEFT"VALIGN="TOP">ROM</TD><TDALIGN="LEFT"VALIGN="TOP">[ROM]</TD><TDALIGN="LEFT"VALIGN="TOP">RedBoot running from flash address 0x20000, with	      ARM Boot Monitor in flash boot sector.</TD><TDALIGN="LEFT"VALIGN="TOP">redboot_ROMA.ecm</TD></TR></TBODY></TABLE><P></P></DIV></P></DIV><DIVCLASS="SECT2"><H2CLASS="SECT2"><ANAME="AEN5079">Initial Installation</H2><P>RedBoot is installed using the on-board boot environment. See the usermanual for full details.</P></DIV><DIVCLASS="SECT2"><H2CLASS="SECT2"><ANAME="AEN5082">Quick download instructions</H2><P>Here are quick start instructions for downloading the prebuilt Redbootimage:</P><P></P><UL><LI><P>Boot the board and press ENTER:</P><TABLEBORDER="5"BGCOLOR="#E0E0F0"WIDTH="70%"><TR><TD><PRECLASS="SCREEN">&#13;      ARM Evaluator7T Boot Monitor PreRelease 1.00      Press ENTER within 2 seconds to stop autoboot      Boot: </PRE></TD></TR></TABLE></LI><LI><P>Erase the part of the flash where RedBoot will get programmed:</P><TABLEBORDER="5"BGCOLOR="#E0E0F0"WIDTH="70%"><TR><TD><PRECLASS="SCREEN">      Boot: <TTCLASS="USERINPUT"><B>flasherase 01820000 10000</B></TT></PRE></TD></TR></TABLE></LI><LI><P>Prepare to download the UU-encoded version of the RedBootimage:</P><TABLEBORDER="5"BGCOLOR="#E0E0F0"WIDTH="70%"><TR><TD><PRECLASS="SCREEN">      Boot: <TTCLASS="USERINPUT"><B>download 10000</B></TT>      Ready to download. Use 'transmit' option on terminal emulator to download file.</PRE></TD></TR></TABLE></LI><LI><P>Either use ASCII transmit option in the terminal emulator,or on Linux, simply cat the file to the serial port:<TABLEBORDER="5"BGCOLOR="#E0E0F0"WIDTH="70%"><TR><TD><PRECLASS="SCREEN">      $ <TTCLASS="USERINPUT"><B>cat redboot.UU &#62; /dev/ttyS0</B></TT></PRE></TD></TR></TABLE>When complete, you shouldsee:<TABLEBORDER="5"BGCOLOR="#E0E0F0"WIDTH="70%"><TR><TD><PRECLASS="SCREEN">      Loaded file redboot.bin at address 000100000, size = 41960      Boot:</PRE></TD></TR></TABLE></P></LI><LI><P>Program the flash:<TABLEBORDER="5"BGCOLOR="#E0E0F0"WIDTH="70%"><TR><TD><PRECLASS="SCREEN">      Boot: <TTCLASS="USERINPUT"><B>flashwrite 01820000 10000 10000</B></TT></PRE></TD></TR></TABLE></P></LI><LI><P>And verify that the module is available:<TABLEBORDER="5"BGCOLOR="#E0E0F0"WIDTH="70%"><TR><TD><PRECLASS="SCREEN">      Boot: <TTCLASS="USERINPUT"><B>rommodules</B></TT>      Header   Base     Limit      018057c8 01800000 018059e7 BootStrapLoader v1.0 Apr 27 2000 10:33:58      01828f24 01820000 0182a3e8 RedBoot              Apr  5 2001</PRE></TD></TR></TABLE></P></LI><LI><P>Reboot the board and you should see the RedBoot banner.</P></LI></UL></DIV><DIVCLASS="SECT2"><H2CLASS="SECT2"><ANAME="AEN5112">Special RedBoot Commands</H2><P>None.</P></DIV><DIVCLASS="SECT2"><H2CLASS="SECT2"><ANAME="AEN5115">Memory Maps</H2><P>RedBoot sets up the following memory map on the E7T board. <DIVCLASS="NOTE"><BLOCKQUOTECLASS="NOTE"><P><B>NOTE: </B>The virtual memory maps in this section use a C and B column to indicatewhether or not the region is cached (C) or buffered (B).</P></BLOCKQUOTE></DIV>  <TABLEBORDER="5"BGCOLOR="#E0E0F0"WIDTH="70%"><TR><TD><PRECLASS="PROGRAMLISTING">Physical Address Range  C B  Description----------------------- - -  -----------0x00000000 - 0x0007ffff Y N  SDRAM0x03ff0000 - 0x03ffffff N N  Microcontroller registers0x01820000 - 0x0187ffff N N  System flash (mirrored)</PRE></TD></TR></TABLE></P></DIV><DIVCLASS="SECT2"><H2CLASS="SECT2"><ANAME="AEN5122">Rebuilding RedBoot</H2><P>These shell variables provide the platform-specific informationneeded for building RedBoot according to the procedure described in<AHREF="rebuilding-redboot.html">Chapter 3</A>:<TABLEBORDER="5"BGCOLOR="#E0E0F0"WIDTH="70%"><TR><TD><PRECLASS="PROGRAMLISTING">export TARGET=e7texport ARCH_DIR=armexport PLATFORM_DIR=e7t</PRE></TD></TR></TABLE></P><P>The names of configuration files are listed above with thedescription of the associated modes.</P></DIV></DIV><DIVCLASS="NAVFOOTER"><HRALIGN="LEFT"WIDTH="100%"><TABLESUMMARY="Footer navigation table"WIDTH="100%"BORDER="0"CELLPADDING="0"CELLSPACING="0"><TR><TDWIDTH="33%"ALIGN="left"VALIGN="top"><AHREF="installation-and-testing.html"ACCESSKEY="P">Prev</A></TD><TDWIDTH="34%"ALIGN="center"VALIGN="top"><AHREF="ecos-ref.html"ACCESSKEY="H">Home</A></TD><TDWIDTH="33%"ALIGN="right"VALIGN="top"><AHREF="integrator.html"ACCESSKEY="N">Next</A></TD></TR><TR><TDWIDTH="33%"ALIGN="left"VALIGN="top">Installation and Testing</TD><TDWIDTH="34%"ALIGN="center"VALIGN="top"><AHREF="installation-and-testing.html"ACCESSKEY="U">Up</A></TD><TDWIDTH="33%"ALIGN="right"VALIGN="top">ARM/ARM7+ARM9 ARM Integrator</TD></TR></TABLE></DIV></BODY></HTML>
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