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<a name="Windows-1"></a>
<h2 class="section">A.2 Windows</h2>
<table class="menu" border="0" cellspacing="0">
<tr><td align="left" valign="top"><a href="#Windows-Installation">A.2.1 Installation</a></td><td> </td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top"><a href="#Windows-Configuration-Files">A.2.2 Configuration Files</a></td><td> </td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top"><a href="#Windows-Port-Names">A.2.3 Port Names</a></td><td> </td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top"><a href="#Documentation">A.2.4 Documentation</a></td><td> </td><td align="left" valign="top">
</td></tr>
</table>
<hr>
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<a name="Installation"></a>
<h3 class="subsection">A.2.1 Installation</h3>
<p>A Windows executable of avrdude is included in WinAVR which can be found at
<a href="http://sourceforge.net/projects/winavr">http://sourceforge.net/projects/winavr</a>. WinAVR is a suite of executable,
open source software development tools for the AVR for the Windows platform.
</p>
<p>There are two options to build avrdude from source under Windows.
The first one is to use Cygwin (<a href="http://www.cygwin.com/">http://www.cygwin.com/</a>).
</p>
<p>To build and install from the source tarball for Windows (using Cygwin):
</p>
<div class="example">
<pre class="example">$ set PREFIX=<your install directory path>
$ export PREFIX
$ gunzip -c avrdude-6.99-20211218.tar.gz | tar xf -
$ cd avrdude-6.99-20211218
$ ./configure LDFLAGS="-static" --prefix=$PREFIX --datadir=$PREFIX
--sysconfdir=$PREFIX/bin --enable-versioned-doc=no
$ make
$ make install
</pre></div>
<p>Note that recent versions of Cygwin (starting with 1.7) removed the
MinGW support from the compiler that is needed in order to build a
native Win32 API binary that does not require to install the Cygwin
library <code>cygwin1.dll</code> at run-time. Either try using an older
compiler version that still supports MinGW builds, or use MinGW
(<a href="http://www.mingw.org/">http://www.mingw.org/</a>) directly.
</p>
<hr>
<a name="Windows-Configuration-Files"></a>
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</tr></table>
<a name="Configuration-Files"></a>
<h3 class="subsection">A.2.2 Configuration Files</h3>
<table class="menu" border="0" cellspacing="0">
<tr><td align="left" valign="top"><a href="#Configuration-file-names">A.2.2.1 Configuration file names</a></td><td> </td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top"><a href="#How-AVRDUDE-finds-the-configuration-files_002e">A.2.2.2 How AVRDUDE finds the configuration files.</a></td><td> </td><td align="left" valign="top">
</td></tr>
</table>
<hr>
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</tr></table>
<a name="Configuration-file-names-1"></a>
<h4 class="subsubsection">A.2.2.1 Configuration file names</h4>
<p>AVRDUDE on Windows looks for a system configuration file name of
<code>avrdude.conf</code> and looks for a user override configuration file of
<code>avrdude.rc</code>.
</p>
<hr>
<a name="How-AVRDUDE-finds-the-configuration-files_002e"></a>
<table class="header" cellpadding="1" cellspacing="1" border="0">
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</tr></table>
<a name="How-AVRDUDE-finds-the-configuration-files_002e-1"></a>
<h4 class="subsubsection">A.2.2.2 How AVRDUDE finds the configuration files.</h4>
<p>AVRDUDE on Windows has a different way of searching for the system and
user configuration files. Below is the search method for locating the
configuration files:
</p>
<ol>
<li>
Only for the system configuration file:
<code><directory from which application loaded>/../etc/avrdude.conf</code>
</li><li>
The directory from which the application loaded.
</li><li>
The current directory.
</li><li>
The Windows system directory. On Windows NT, the name of this directory
is <code>SYSTEM32</code>.
</li><li>
Windows NT: The 16-bit Windows system directory. The name of this
directory is <code>SYSTEM</code>.
</li><li>
The Windows directory.
</li><li>
The directories that are listed in the PATH environment variable.
</li></ol>
<hr>
<a name="Windows-Port-Names"></a>
<table class="header" cellpadding="1" cellspacing="1" border="0">
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</tr></table>
<a name="Port-Names"></a>
<h3 class="subsection">A.2.3 Port Names</h3>
<table class="menu" border="0" cellspacing="0">
<tr><td align="left" valign="top"><a href="#Serial-Ports">A.2.3.1 Serial Ports</a></td><td> </td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top"><a href="#Parallel-Ports">A.2.3.2 Parallel Ports</a></td><td> </td><td align="left" valign="top">
</td></tr>
</table>
<hr>
<a name="Serial-Ports"></a>
<table class="header" cellpadding="1" cellspacing="1" border="0">
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</tr></table>
<a name="Serial-Ports-1"></a>
<h4 class="subsubsection">A.2.3.1 Serial Ports</h4>
<p>When you select a serial port (i.e. when using an STK500) use the
Windows serial port device names such as: com1, com2, etc.
</p>
<hr>
<a name="Parallel-Ports"></a>
<table class="header" cellpadding="1" cellspacing="1" border="0">
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</tr></table>
<a name="Parallel-Ports-1"></a>
<h4 class="subsubsection">A.2.3.2 Parallel Ports</h4>
<p>AVRDUDE will accept 3 Windows parallel port names: lpt1, lpt2, or
lpt3. Each of these names corresponds to a fixed parallel port base
address:
</p>
<dl compact="compact">
<dt><code>lpt1</code></dt>
<dd><p>0x378
</p>
</dd>
<dt><code>lpt2</code></dt>
<dd><p>0x278
</p>
</dd>
<dt><code>lpt3</code></dt>
<dd><p>0x3BC
</p>
</dd>
</dl>
<p>On your desktop PC, lpt1 will be the most common choice. If you are
using a laptop, you might have to use lpt3 instead of lpt1. Select the
name of the port the corresponds to the base address of the parallel
port that you want.
</p>
<p>If the parallel port can be accessed through a different
address, this address can be specified directly, using the common C
language notation (i. e., hexadecimal values are prefixed by <code>0x</code>).
</p>
<hr>
<a name="Documentation"></a>
<table class="header" cellpadding="1" cellspacing="1" border="0">
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</tr></table>
<a name="Documentation-1"></a>
<h3 class="subsection">A.2.4 Documentation</h3>
<p>AVRDUDE installs a manual page as well as info, HTML and PDF
documentation. The manual page is installed in
<code>/usr/local/man/man1</code> area, while the HTML and PDF documentation
is installed in <code>/usr/local/share/doc/avrdude</code> directory. The
info manual is installed in <code>/usr/local/info/avrdude.info</code>.
</p>
<p>Note that these locations can be altered by various configure options
such as ‘<samp>--prefix</samp>’ and ‘<samp>--datadir</samp>’.
</p>
<hr>
<table class="header" cellpadding="1" cellspacing="1" border="0">
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