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基于AT91SAM7SE512cpu使用SDRAM的例子

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    <h3>IAR 4.31A Download Project <span style='font-family:"Trebuchet MS"'><o:p></o:p></span></h3>
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  <p class=MsoNormal><span style='font-size:7.0pt;font-family:Verdana;
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    <h2><span style='font-size:10.0pt;font-family:Verdana'>Introduction<u1:p></u1:p><o:p></o:p></span></h2>
    <p class=style1>The goal of this project is to download a project build
    under the IAR tools using Flash methods to IAR Flash Tools<u3:p></u3:p></p>
    <h2><span style='font-size:10.0pt;font-family:Verdana'>Use the IAR 4.31A
    Flash feature <u1:p></u1:p><o:p></o:p></span></h2>
    <p class=style1>The IAR Embedded Workbench IDE features a Tools Flash
    utility.</p>
    <p class=style1>This method can write in flash a IAR file format (*.sim)
    (output format generated using option simple-code)</p>
    <p class=style1>The IAR Flash download option to use a flash loader to download
    your application to flash memory. If a flash loader is available for the
    selected chip, it will be used as default. A flash loader can be described
    as being an agent that is downloaded to the target. It fetches the actual
    application from the C-SPY debugger and programs it into flash memory. </p>
    <p class=style1>The flash loader uses the file I/O mechanism to read the
    application program from the host. When the Flash download option is
    enabled, the following steps will be performed when the debug session
    starts:</p>
    <p class=style1>1 C-SPY downloads the flash loader into target RAM.</p>
    <p class=style1>2 C-SPY starts execution of the flash loader.</p>
    <p class=style1>3 The flash loader opens the file holding the application
    code.</p>
    <p class=style1>4 The flash loader reads the application code and programs
    it into flash memory.</p>
    <p class=style1>5 The flash loader terminates.</p>
    <p class=style1>6 C-SPY switches context to the user application.</p>
    <p class=style1>A set of flash loaders for various micro controllers is
    provided with the ARM IAR Embedded Workbench. In addition to these, other
    flash loaders are provided by chip manufacturers and third-party vendors. </p>
    <p class=style1>Two output files must be generated. The first is the usual
    UBROF file (d79) that provides the debugger with debug and symbol
    information. The second file is an IAR file (*.sim) that will be opened and
    read by the flash loader when downloading the application to flash memory.</p>
    <p class=style1><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></p>
    <p class=style1>To create the extra output file, choose Project-&gt;Options
    and select the linker category. Select the Allow C-SPY-specific extra
    output file option. In the Extra Output dialog, select the Generate extra
    output file option. Choose intel-extended output format and format variant
    None. Do not override the default output file. </p>
    <p class=style1>Any errors during the download will be logged to a log
    file. The log file will have the same path and name as the output files but
    with the tail and filename extension _flash.log.</p>
    <h2><span style='font-size:10.0pt;font-family:Verdana'>Process<o:p></o:p></span></h2>
    <ul type=disc>
     <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:
         auto;mso-list:l1 level1 lfo3;tab-stops:list 36.0pt'><span
         class=style11><span style='font-size:10.0pt;font-family:Verdana'>Compile
         the Flash Debug workspace application to generate the IAR file named
         basicIAR.sim and the debug file named basic.d79<o:p></o:p></span></span></li>
    </ul>
    <p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:
    auto;margin-left:18.0pt'><span class=style11><span style='font-size:10.0pt;
    font-family:Verdana'>1)<span style='mso-tab-count:1'>&nbsp; </span>Download
    this application using a JTAG ICE interface with the &quot;Debug&quot;
    command<o:p></o:p></span></span></p>
    <p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:
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    style='font-size:10.0pt;font-family:Verdana'>2)<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;
    </span></span></span><![endif]><span class=style11><span style='font-size:
    10.0pt;font-family:Verdana'>Open the &#8220;Debug Log&#8221; window <o:p></o:p></span></span></p>
    <p class=MsoNormal><![if !supportEmptyParas]>&nbsp;<![endif]><span
    style='font-family:Verdana'><o:p></o:p></span></p>
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