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<title>AVRDUDE: 1 Introduction</title>
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<h1>AVRDUDE</h1>
<h3 align="right">A program for download/uploading AVR microcontroller flash and eeprom.</h3>
<h3 align="right">For AVRDUDE, Version 6.99-20211218, 3 March 2022.</h3>
<strong>by Brian S. Dean</strong><br>
<p>Send comments on AVRDUDE to <a href="mailto:<span class="nolinebreak">avrdude-dev</span>@nongnu.org"><span class="nolinebreak">avrdude-dev</span>@nongnu.org</a>.
</p>
<p>Use <a href="http://savannah.nongnu.org/bugs/?group=avrdude">http://savannah.nongnu.org/bugs/?group=avrdude</a> to report bugs.
</p>
<p>Copyright &copy; 2003,2005 Brian S. Dean
</p>
<p>Copyright &copy; 2006 - 2013 J&ouml;rg Wunsch
</p><br>
<br>
<p>Permission is granted to make and distribute verbatim copies of
this manual provided the copyright notice and this permission notice
are preserved on all copies.
</p>
<p>Permission is granted to copy and distribute modified versions of this
manual under the conditions for verbatim copying, provided that the entire
resulting derived work is distributed under the terms of a permission
notice identical to this one.
</p>
<p>Permission is granted to copy and distribute translations of this manual
into another language, under the above conditions for modified versions,
except that this permission notice may be stated in a translation approved
by the Free Software Foundation.
</p><hr>
<a name="Top"></a>
<table class="header" cellpadding="1" cellspacing="1" border="0">
<tr><td valign="middle" align="left">[ &lt;&lt; ]</td>
<td valign="middle" align="left">[ &lt; ]</td>
<td valign="middle" align="left">[ Up ]</td>
<td valign="middle" align="left">[<a href="avrdude_1.html#History" title="Next section in reading order"> &gt; </a>]</td>
<td valign="middle" align="left">[<a href="avrdude_2.html#Command-Line-Options" title="Next chapter"> &gt;&gt; </a>]</td>
<td valign="middle" align="left"> &nbsp; </td>
<td valign="middle" align="left"> &nbsp; </td>
<td valign="middle" align="left"> &nbsp; </td>
<td valign="middle" align="left"> &nbsp; </td>
<td valign="middle" align="left">[<a href="#Introduction" title="Cover (top) of document">Top</a>]</td>
<td valign="middle" align="left">[<a href="avrdude_toc.html#SEC_Contents" title="Table of contents">Contents</a>]</td>
<td valign="middle" align="left">[Index]</td>
<td valign="middle" align="left">[<a href="avrdude_abt.html#SEC_About" title="About (help)"> ? </a>]</td>
</tr></table>
<table class="menu" border="0" cellspacing="0">
<tr><td align="left" valign="top"><a href="#Introduction">1 Introduction</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top"><a href="avrdude_2.html#Command-Line-Options">2 Command Line Options</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top"><a href="avrdude_6.html#Terminal-Mode-Operation">3 Terminal Mode Operation</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top"><a href="avrdude_9.html#Configuration-File">4 Configuration File</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top"><a href="avrdude_14.html#Programmer-Specific-Information">5 Programmer Specific Information</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top"><a href="avrdude_18.html#Platform-Dependent-Information">Appendix A Platform Dependent Information</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top"><a href="avrdude_21.html#Troubleshooting">Appendix B Troubleshooting</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
</table>
<a name="Introduction"></a>
<a name="Introduction-1"></a>
<h1 class="chapter">1 Introduction</h1>
<a name="index-introduction"></a>
<p>AVRDUDE - AVR Downloader Uploader - is a program for downloading and
uploading the on-chip memories of Atmel&rsquo;s AVR microcontrollers. It can
program the Flash and EEPROM, and where supported by the serial
programming protocol, it can program fuse and lock bits. AVRDUDE also
supplies a direct instruction mode allowing one to issue any programming
instruction to the AVR chip regardless of whether AVRDUDE implements
that specific feature of a particular chip.
</p>
<p>AVRDUDE can be used effectively via the command line to read or write
all chip memory types (eeprom, flash, fuse bits, lock bits, signature
bytes) or via an interactive (terminal) mode. Using AVRDUDE from the
command line works well for programming the entire memory of the chip
from the contents of a file, while interactive mode is useful for
exploring memory contents, modifying individual bytes of eeprom,
programming fuse/lock bits, etc.
</p>
<p>AVRDUDE supports the following basic programmer types: Atmel&rsquo;s STK500,
Atmel&rsquo;s AVRISP and AVRISP mkII devices,
Atmel&rsquo;s STK600,
Atmel&rsquo;s JTAG ICE (the original one, mkII, and 3, the latter two also in ISP mode), appnote
avr910, appnote avr109 (including the AVR Butterfly),
serial bit-bang adapters,
and the PPI (parallel port interface). PPI represents a class
of simple programmers where the programming lines are directly
connected to the PC parallel port. Several pin configurations exist
for several variations of the PPI programmers, and AVRDUDE can be
configured to work with them by either specifying the appropriate
programmer on the command line or by creating a new entry in its
configuration file. All that&rsquo;s usually required for a new entry is to
tell AVRDUDE which pins to use for each programming function.
</p>
<p>A number of equally simple bit-bang programming adapters that connect
to a serial port are supported as well, among them the popular
Ponyprog serial adapter, and the DASA and DASA3 adapters that used to
be supported by uisp(1). Note that these adapters are meant to be
attached to a physical serial port. Connecting to a serial port
emulated on top of USB is likely to not work at all, or to work
abysmally slow.
</p>
<p>If you happen to have a Linux system with at least 4 hardware GPIOs
available (like almost all embedded Linux boards) you can do without
any additional hardware - just connect them to the MOSI, MISO, RESET
and SCK pins on the AVR and use the linuxgpio programmer type. It bitbangs
the lines using the Linux sysfs GPIO interface. Of course, care should
be taken about voltage level compatibility. Also, although not strictly
required, it is strongly advisable to protect the GPIO pins from
overcurrent situations in some way. The simplest would be to just put
some resistors in series or better yet use a 3-state buffer driver like
the 74HC244. Have a look at http://kolev.info/blog/2013/01/06/avrdude-linuxgpio/ for a more
detailed tutorial about using this programmer type.
</p>
<p>Under a Linux installation with direct access to the SPI bus and GPIO
pins, such as would be found on a Raspberry Pi, the &ldquo;linuxspi&rdquo;
programmer type can be used to directly connect to and program a chip
using the built in interfaces on the computer. The requirements to use
this type are that an SPI interface is exposed along with one GPIO
pin. The GPIO serves as the reset output since the Linux SPI drivers
do not hold slave select down when a transfer is not occuring and thus
it cannot be used as the reset pin. A readily available level
translator should be used between the SPI bus/reset GPIO and the chip
to avoid potentially damaging the computer&rsquo;s SPI controller in the
event that the chip is running at 5V and the SPI runs at 3.3V. The
GPIO chosen for reset can be configured in the avrdude configuration
file using the <code>reset</code> entry under the linuxspi programmer, or
directly in the port specification. An external pull-up resistor
should be connected between the AVR&rsquo;s reset pin and Vcc. If Vcc is not
the same as the SPI voltage, this should be done on the AVR side of
the level translator to protect the hardware from damage.
</p>
<p>On a Raspberry Pi, header J8 provides access to the SPI and GPIO
lines.
</p>
<p>Typically, pins 19, 21, and 23 are SPI MOSI, MISO, and SCK, while
pins 24 and 26 would serve as CE outputs. So, close to these pins
is pin 22 as GPIO25 which can be used as /RESET, and pin 25 can
be used as GND.
</p>
<p>A typical programming cable would then look like:
</p>
<table>
<tr><td width="15%"><code>J8 pin</code></td><td width="15%"><code>ISP pin</code></td><td width="30%"><code>Name</code></td></tr>
<tr><td width="15%"><code>21</code></td><td width="15%"><code>1</code></td><td width="30%"><code>MISO</code></td></tr>
<tr><td width="15%"><code>-</code></td><td width="15%"><code>2</code></td><td width="30%"><code>Vcc - leave open</code></td></tr>
<tr><td width="15%"><code>23</code></td><td width="15%"><code>3</code></td><td width="30%"><code>SCK</code></td></tr>
<tr><td width="15%"><code>19</code></td><td width="15%"><code>4</code></td><td width="30%"><code>MOSI</code></td></tr>
<tr><td width="15%"><code>22</code></td><td width="15%"><code>5</code></td><td width="30%"><code>/RESET</code></td></tr>
<tr><td width="15%"><code>25</code></td><td width="15%"><code>6</code></td><td width="30%"><code>GND</code></td></tr>
</table>
<p>(Mind the 3.3 V voltage level of the Raspberry Pi!)
</p>
<p>The <code>-P <var>portname</var></code> option defaults to
<code>/dev/spidev0.0:/dev/gpiochip0</code> for this programmer.
</p>
<p>The STK500, JTAG ICE, avr910, and avr109/butterfly use the serial port to communicate with the PC.
The STK600, JTAG ICE mkII/3, AVRISP mkII, USBasp, avrftdi (and derivatives), and USBtinyISP
programmers communicate through the USB, using <code>libusb</code> as a
platform abstraction layer.
The avrftdi adds support for the FT2232C/D, FT2232H, and FT4232H devices. These all use
the MPSSE mode, which has a specific pin mapping. Bit 1 (the lsb of the byte in the config
file) is SCK. Bit 2 is MOSI, and Bit 3 is MISO. Bit 4 usually reset. The 2232C/D parts
are only supported on interface A, but the H parts can be either A or B (specified by the
usbdev config parameter).
The STK500, STK600, JTAG ICE, and avr910 contain on-board logic to control the programming of the target
device.
The avr109 bootloader implements a protocol similar to avr910, but is
actually implemented in the boot area of the target&rsquo;s flash ROM, as
opposed to being an external device.
The fundamental difference between the two types lies in the
protocol used to control the programmer. The avr910 protocol is very
simplistic and can easily be used as the basis for a simple, home made
programmer since the firmware is available online. On the other hand,
the STK500 protocol is more robust and complicated and the firmware is
not openly available.
The JTAG ICE also uses a serial communication protocol which is similar
to the STK500 firmware version 2 one. However, as the JTAG ICE is
intended to allow on-chip debugging as well as memory programming, the
protocol is more sophisticated.
(The JTAG ICE mkII protocol can also be run on top of USB.)
Only the memory programming functionality of the JTAG ICE is supported
by AVRDUDE.
For the JTAG ICE mkII/3, JTAG, debugWire and ISP mode are supported, provided
it has a firmware revision of at least 4.14 (decimal).
See below for the limitations of debugWire.
For ATxmega devices, the JTAG ICE mkII/3 is supported in PDI mode, provided it
has a revision 1 hardware and firmware version of at least 5.37 (decimal).
</p>
<p>The Atmel-ICE (ARM/AVR) is supported (JTAG, PDI for Xmega, debugWIRE, ISP modes).
</p>
<p>Atmel&rsquo;s XplainedPro boards, using EDBG protocol (CMSIS-DAP compliant), are
supported by the &ldquo;jtag3&rdquo; programmer type.
</p>
<p>Atmel&rsquo;s XplainedMini boards, using mEDBG protocol, are also
supported by the &ldquo;jtag3&rdquo; programmer type.
</p>
<p>The AVR Dragon is supported in all modes (ISP, JTAG, PDI, HVSP, PP, debugWire).
When used in JTAG and debugWire mode, the AVR Dragon behaves similar to a
JTAG ICE mkII, so all device-specific comments for that device
will apply as well.
When used in ISP and PDI mode, the AVR Dragon behaves similar to an
AVRISP mkII (or JTAG ICE mkII in ISP mode), so all device-specific
comments will apply there.
In particular, the Dragon starts out with a rather fast ISP clock
frequency, so the <code>-B <var>bitclock</var></code>
option might be required to achieve a stable ISP communication.
For ATxmega devices, the AVR Dragon is supported in PDI mode, provided it
has a firmware version of at least 6.11 (decimal).
</p>
<p>Wiring boards (e.g. Arduino Mega 2560 Rev3) are supported, utilizing
STK500 V2.x protocol, but a simple DTR/RTS toggle to set the boards
into programming mode. The programmer type is &ldquo;wiring&rdquo;. Note that
the -D option will likely be required in this case, because the
bootloader will rewrite the program memory, but no true chip erase can
be performed.
</p>
<p>The Arduino (which is very similar to the STK500 1.x) is supported via
its own programmer type specification &ldquo;arduino&rdquo;. This programmer works for
the Arduino Uno Rev3 or any AVR that runs the Optiboot bootloader.
The number of connection retry attempts can be specified as an
extended parameter. See the section on
<em>extended parameters</em>
below for details.
</p>
<p>The BusPirate is a versatile tool that can also be used as an AVR programmer.
A single BusPirate can be connected to up to 3 independent AVRs. See
the section on
<em>extended parameters</em>
below for details.
</p>
<p>The USBasp ISP and USBtinyISP adapters are also supported, provided AVRDUDE
has been compiled with libusb support.
They both feature simple firmware-only USB implementations, running on
an ATmega8 (or ATmega88), or ATtiny2313, respectively.
</p>
<p>The Atmel DFU bootloader is supported in both, FLIP protocol version 1
(AT90USB* and ATmega*U* devices), as well as version 2 (Xmega devices).
See below for some hints about FLIP version 1 protocol behaviour.
</p>
<p>The MPLAB(R) PICkit 4 and MPLAB(R) SNAP are supported in ISP, PDI and UPDI mode.
The Curiosity Nano board is supported in UPDI mode. It is dubbed &ldquo;PICkit on
Board&rdquo;, thus the name <code>pkobn_updi</code>.
</p>
<p>SerialUPDI programmer implementation is based on Microchip&rsquo;s
<em>pymcuprog</em> (<a href="https://github.com/microchip-pic-avr-tools/pymcuprog">https://github.com/microchip-pic-avr-tools/pymcuprog</a>)
utility, but it also contains some performance improvements included in
Spence Konde&rsquo;s <em>DxCore</em> Arduino core (<a href="https://github.com/SpenceKonde/DxCore">https://github.com/SpenceKonde/DxCore</a>).
In a nutshell, this programmer consists of simple USB-&gt;UART adapter, diode
and couple of resistors. It uses serial connection to provide UPDI interface.
See section <a href="avrdude_17.html#SerialUPDI-programmer">SerialUPDI programmer</a> for more details and known issues.
</p>
<p>The jtag2updi programmer is supported,
and can program AVRs with a UPDI interface.
Jtag2updi is just a firmware that can be uploaded to an AVR,
which enables it to interface with avrdude using the jtagice mkii protocol
via a serial link (<a href="https://github.com/ElTangas/jtag2updi">https://github.com/ElTangas/jtag2updi</a>).
</p>
<p>The Micronucleus bootloader is supported for both protocol version V1
and V2. As the bootloader does not support reading from flash memory,
use the <code>-V</code> option to prevent AVRDUDE from verifing the flash memory.
See the section on <em>extended parameters</em>
below for Micronucleus specific options.
</p>
<p>The Teensy bootloader is supported for all AVR boards.
As the bootloader does not support reading from flash memory,
use the <code>-V</code> option to prevent AVRDUDE from verifing the flash memory.
See the section on <em>extended parameters</em>
below for Teensy specific options.
</p>
<table class="menu" border="0" cellspacing="0">
<tr><td align="left" valign="top"><a href="avrdude_1.html#History">1.1 History and Credits</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
</table>
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<td valign="middle" align="left">[<a href="avrdude_2.html#Command-Line-Options" title="Next chapter"> &gt;&gt; </a>]</td>
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<a name="History"></a>
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<tr><td valign="middle" align="left">[<a href="avrdude.html#Introduction" title="Beginning of this chapter or previous chapter"> &lt;&lt; </a>]</td>
<td valign="middle" align="left">[<a href="avrdude.html#Introduction" title="Previous section in reading order"> &lt; </a>]</td>
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<td valign="middle" align="left"> &nbsp; </td>
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<td valign="middle" align="left">[<a href="avrdude.html#Introduction" title="Cover (top) of document">Top</a>]</td>
<td valign="middle" align="left">[<a href="avrdude_toc.html#SEC_Contents" title="Table of contents">Contents</a>]</td>
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<td valign="middle" align="left">[<a href="avrdude_abt.html#SEC_About" title="About (help)"> ? </a>]</td>
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<a name="History-and-Credits"></a>
<h2 class="section">1.1 History and Credits</h2>
<p>AVRDUDE was written by Brian S. Dean under the name of AVRPROG to run on
the FreeBSD Operating System. Brian renamed the software to be called
AVRDUDE when interest grew in a Windows port of the software so that the
name did not conflict with AVRPROG.EXE which is the name of Atmel&rsquo;s
Windows programming software.
</p>
<p>The AVRDUDE source now resides in the public CVS repository on
savannah.gnu.org (<a href="http://savannah.gnu.org/projects/avrdude/">http://savannah.gnu.org/projects/avrdude/</a>),
where it continues to be enhanced and ported to other systems. In
addition to FreeBSD, AVRDUDE now runs on Linux and Windows. The
developers behind the porting effort primarily were Ted Roth, Eric
Weddington, and Joerg Wunsch.
</p>
<p>And in the spirit of many open source projects, this manual also draws
on the work of others. The initial revision was composed of parts of
the original Unix manual page written by Joerg Wunsch, the original web
site documentation by Brian Dean, and from the comments describing the
fields in the AVRDUDE configuration file by Brian Dean. The texi
formatting was modeled after that of the Simulavr documentation by Ted
Roth.
</p>
<hr>
<table class="header" cellpadding="1" cellspacing="1" border="0">
<tr><td valign="middle" align="left">[<a href="avrdude.html#Introduction" title="Beginning of this chapter or previous chapter"> &lt;&lt; </a>]</td>
<td valign="middle" align="left">[<a href="avrdude.html#Introduction" title="Previous section in reading order"> &lt; </a>]</td>
<td valign="middle" align="left">[<a href="avrdude.html#Introduction" title="Up section"> Up </a>]</td>
<td valign="middle" align="left">[<a href="avrdude_2.html#Command-Line-Options" title="Next section in reading order"> &gt; </a>]</td>
<td valign="middle" align="left">[<a href="avrdude_2.html#Command-Line-Options" title="Next chapter"> &gt;&gt; </a>]</td>
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<a name="AVRDUDE-Defaults-1"></a>
<h2 class="section">4.1 AVRDUDE Defaults</h2>
<dl compact="compact">
<dt><code>default_parallel = &quot;<var>default-parallel-device</var>&quot;;</code></dt>
<dd><p>Assign the default parallel port device. Can be overridden using the
&lsquo;<samp>-P</samp>&rsquo; option.
</p>
</dd>
<dt><code>default_serial = &quot;<var>default-serial-device</var>&quot;;</code></dt>
<dd><p>Assign the default serial port device. Can be overridden using the
&lsquo;<samp>-P</samp>&rsquo; option.
</p>
</dd>
<dt><code>default_programmer = &quot;<var>default-programmer-id</var>&quot;;</code></dt>
<dd><p>Assign the default programmer id. Can be overridden using the &lsquo;<samp>-c</samp>&rsquo;
option.
</p>
</dd>
<dt><code>default_bitclock = &quot;<var>default-bitclock</var>&quot;;</code></dt>
<dd><p>Assign the default bitclock value. Can be overridden using the &lsquo;<samp>-B</samp>&rsquo;
option.
</p>
</dd>
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<a name="Programmer-Definitions-1"></a>
<h2 class="section">4.2 Programmer Definitions</h2>
<p>The format of the programmer definition is as follows:
</p>
<div class="smallexample">
<pre class="smallexample">programmer
parent &lt;id&gt; # &lt;id&gt; is a quoted string
id = &lt;id1&gt; [, &lt;id2&gt; [, &lt;id3&gt;] ...] ; # &lt;idN&gt; are quoted strings
desc = &lt;description&gt; ; # quoted string
type = &quot;par&quot; | &quot;stk500&quot; | ... ; # programmer type (see below for a list)
baudrate = &lt;num&gt; ; # baudrate for serial ports
vcc = &lt;num1&gt; [, &lt;num2&gt; ... ] ; # pin number(s)
buff = &lt;num1&gt; [, &lt;num2&gt; ... ] ; # pin number(s)
reset = &lt;num&gt; ; # pin number
sck = &lt;num&gt; ; # pin number
mosi = &lt;num&gt; ; # pin number
miso = &lt;num&gt; ; # pin number
errled = &lt;num&gt; ; # pin number
rdyled = &lt;num&gt; ; # pin number
pgmled = &lt;num&gt; ; # pin number
vfyled = &lt;num&gt; ; # pin number
usbvid = &lt;hexnum&gt;; # USB VID (Vendor ID)
usbpid = &lt;hexnum&gt; [, &lt;hexnum&gt; ...]; # USB PID (Product ID)
usbdev = &lt;interface&gt;; # USB interface or other device info
usbvendor = &lt;vendorname&gt;; # USB Vendor Name
usbproduct = &lt;productname&gt;; # USB Product Name
usbsn = &lt;serialno&gt;; # USB Serial Number
;
</pre></div>
<p>If a parent is specified, all settings of it (except its ids) are used for the new
programmer. These values can be changed by new setting them for the new programmer.
</p>
<p>To invert a bit in the pin definitions, use <code>= ~ &lt;num&gt;</code>.
</p>
<p>Not all programmer types can handle a list of USB PIDs.
</p>
<p>Following programmer types are currently implemented:
</p>
<table>
<tr><td width="25%"><code>arduino</code></td><td width="60%">Arduino programmer</td></tr>
<tr><td width="25%"><code>avr910</code></td><td width="60%">Serial programmers using protocol described in application note AVR910</td></tr>
<tr><td width="25%"><code>avrftdi</code></td><td width="60%">Interface to the MPSSE Engine of FTDI Chips using libftdi.</td></tr>
<tr><td width="25%"><code>buspirate</code></td><td width="60%">Using the Bus Pirate&rsquo;s SPI interface for programming</td></tr>
<tr><td width="25%"><code>buspirate_bb</code></td><td width="60%">Using the Bus Pirate&rsquo;s bitbang interface for programming</td></tr>
<tr><td width="25%"><code>butterfly</code></td><td width="60%">Atmel Butterfly evaluation board; Atmel AppNotes AVR109, AVR911</td></tr>
<tr><td width="25%"><code>butterfly_mk</code></td><td width="60%">Mikrokopter.de Butterfly</td></tr>
<tr><td width="25%"><code>dragon_dw</code></td><td width="60%">Atmel AVR Dragon in debugWire mode</td></tr>
<tr><td width="25%"><code>dragon_hvsp</code></td><td width="60%">Atmel AVR Dragon in HVSP mode</td></tr>
<tr><td width="25%"><code>dragon_isp</code></td><td width="60%">Atmel AVR Dragon in ISP mode</td></tr>
<tr><td width="25%"><code>dragon_jtag</code></td><td width="60%">Atmel AVR Dragon in JTAG mode</td></tr>
<tr><td width="25%"><code>dragon_pdi</code></td><td width="60%">Atmel AVR Dragon in PDI mode</td></tr>
<tr><td width="25%"><code>dragon_pp</code></td><td width="60%">Atmel AVR Dragon in PP mode</td></tr>
<tr><td width="25%"><code>flip1</code></td><td width="60%">FLIP USB DFU protocol version 1 (doc7618)</td></tr>
<tr><td width="25%"><code>flip2</code></td><td width="60%">FLIP USB DFU protocol version 2 (AVR4023)</td></tr>
<tr><td width="25%"><code>ftdi_syncbb</code></td><td width="60%">FT245R/FT232R Synchronous BitBangMode Programmer</td></tr>
<tr><td width="25%"><code>jtagmki</code></td><td width="60%">Atmel JTAG ICE mkI</td></tr>
<tr><td width="25%"><code>jtagmkii</code></td><td width="60%">Atmel JTAG ICE mkII</td></tr>
<tr><td width="25%"><code>jtagmkii_avr32</code></td><td width="60%">Atmel JTAG ICE mkII in AVR32 mode</td></tr>
<tr><td width="25%"><code>jtagmkii_dw</code></td><td width="60%">Atmel JTAG ICE mkII in debugWire mode</td></tr>
<tr><td width="25%"><code>jtagmkii_isp</code></td><td width="60%">Atmel JTAG ICE mkII in ISP mode</td></tr>
<tr><td width="25%"><code>jtagmkii_pdi</code></td><td width="60%">Atmel JTAG ICE mkII in PDI mode</td></tr>
<tr><td width="25%"><code>jtagice3</code></td><td width="60%">Atmel JTAGICE3</td></tr>
<tr><td width="25%"><code>jtagice3_pdi</code></td><td width="60%">Atmel JTAGICE3 in PDI mode</td></tr>
<tr><td width="25%"><code>jtagice3_updi</code></td><td width="60%">Atmel JTAGICE3 in UPDI mode</td></tr>
<tr><td width="25%"><code>jtagice3_dw</code></td><td width="60%">Atmel JTAGICE3 in debugWire mode</td></tr>
<tr><td width="25%"><code>jtagice3_isp</code></td><td width="60%">Atmel JTAGICE3 in ISP mode</td></tr>
<tr><td width="25%"><code>linuxgpio</code></td><td width="60%">GPIO bitbanging using the Linux sysfs interface (not available)</td></tr>
<tr><td width="25%"><code>linuxspi</code></td><td width="60%">SPI using Linux spidev driver (not available)</td></tr>
<tr><td width="25%"><code>micronucleus</code></td><td width="60%">Micronucleus Bootloader</td></tr>
<tr><td width="25%"><code>par</code></td><td width="60%">Parallel port bitbanging</td></tr>
<tr><td width="25%"><code>pickit2</code></td><td width="60%">Microchip&rsquo;s PICkit2 Programmer</td></tr>
<tr><td width="25%"><code>serbb</code></td><td width="60%">Serial port bitbanging</td></tr>
<tr><td width="25%"><code>serialupdi</code></td><td width="60%">Driver for SerialUPDI programmers</td></tr>
<tr><td width="25%"><code>stk500</code></td><td width="60%">Atmel STK500 Version 1.x firmware</td></tr>
<tr><td width="25%"><code>stk500generic</code></td><td width="60%">Atmel STK500, autodetect firmware version</td></tr>
<tr><td width="25%"><code>stk500v2</code></td><td width="60%">Atmel STK500 Version 2.x firmware</td></tr>
<tr><td width="25%"><code>stk500hvsp</code></td><td width="60%">Atmel STK500 V2 in high-voltage serial programming mode</td></tr>
<tr><td width="25%"><code>stk500pp</code></td><td width="60%">Atmel STK500 V2 in parallel programming mode</td></tr>
<tr><td width="25%"><code>stk600</code></td><td width="60%">Atmel STK600</td></tr>
<tr><td width="25%"><code>stk600hvsp</code></td><td width="60%">Atmel STK600 in high-voltage serial programming mode</td></tr>
<tr><td width="25%"><code>stk600pp</code></td><td width="60%">Atmel STK600 in parallel programming mode</td></tr>
<tr><td width="25%"><code>teensy</code></td><td width="60%">Teensy Bootloader</td></tr>
<tr><td width="25%"><code>usbasp</code></td><td width="60%">USBasp programmer, see http://www.fischl.de/usbasp/</td></tr>
<tr><td width="25%"><code>usbtiny</code></td><td width="60%">Driver for &quot;usbtiny&quot;-type programmers</td></tr>
<tr><td width="25%"><code>wiring</code></td><td width="60%">http://wiring.org.co/, Basically STK500v2 protocol, with some glue to trigger the bootloader.</td></tr>
<tr><td width="25%"><code>xbee</code></td><td width="60%">XBee Series 2 Over-The-Air (XBeeBoot)</td></tr>
</table>
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<a name="Part-Definitions-1"></a>
<h2 class="section">4.3 Part Definitions</h2>
<div class="smallexample">
<pre class="smallexample">part
id = &lt;id&gt; ; # quoted string
desc = &lt;description&gt; ; # quoted string
family_id = &lt;description&gt; ; # quoted string
has_jtag = &lt;yes/no&gt; ; # part has JTAG i/f
has_debugwire = &lt;yes/no&gt; ; # part has debugWire i/f
has_pdi = &lt;yes/no&gt; ; # part has PDI i/f
has_updi = &lt;yes/no&gt; ; # part has UPDI i/f
has_tpi = &lt;yes/no&gt; ; # part has TPI i/f
devicecode = &lt;num&gt; ; # numeric
stk500_devcode = &lt;num&gt; ; # numeric
avr910_devcode = &lt;num&gt; ; # numeric
signature = &lt;num&gt; &lt;num&gt; &lt;num&gt; ; # signature bytes
usbpid = &lt;num&gt; ; # DFU USB PID
reset = dedicated | io;
retry_pulse = reset | sck;
pgm_enable = &lt;instruction format&gt; ;
chip_erase = &lt;instruction format&gt; ;
chip_erase_delay = &lt;num&gt; ; # micro-seconds
# STK500 parameters (parallel programming IO lines)
pagel = &lt;num&gt; ; # pin name in hex, i.e., 0xD7
bs2 = &lt;num&gt; ; # pin name in hex, i.e., 0xA0
serial = &lt;yes/no&gt; ; # can use serial downloading
parallel = &lt;yes/no/pseudo&gt;; # can use par. programming
# STK500v2 parameters, to be taken from Atmel's XML files
timeout = &lt;num&gt; ;
stabdelay = &lt;num&gt; ;
cmdexedelay = &lt;num&gt; ;
synchloops = &lt;num&gt; ;
bytedelay = &lt;num&gt; ;
pollvalue = &lt;num&gt; ;
pollindex = &lt;num&gt; ;
predelay = &lt;num&gt; ;
postdelay = &lt;num&gt; ;
pollmethod = &lt;num&gt; ;
mode = &lt;num&gt; ;
delay = &lt;num&gt; ;
blocksize = &lt;num&gt; ;
readsize = &lt;num&gt; ;
hvspcmdexedelay = &lt;num&gt; ;
# STK500v2 HV programming parameters, from XML
pp_controlstack = &lt;num&gt;, &lt;num&gt;, ...; # PP only
hvsp_controlstack = &lt;num&gt;, &lt;num&gt;, ...; # HVSP only
hventerstabdelay = &lt;num&gt;;
progmodedelay = &lt;num&gt;; # PP only
latchcycles = &lt;num&gt;;
togglevtg = &lt;num&gt;;
poweroffdelay = &lt;num&gt;;
resetdelayms = &lt;num&gt;;
resetdelayus = &lt;num&gt;;
hvleavestabdelay = &lt;num&gt;;
resetdelay = &lt;num&gt;;
synchcycles = &lt;num&gt;; # HVSP only
chiperasepulsewidth = &lt;num&gt;; # PP only
chiperasepolltimeout = &lt;num&gt;;
chiperasetime = &lt;num&gt;; # HVSP only
programfusepulsewidth = &lt;num&gt;; # PP only
programfusepolltimeout = &lt;num&gt;;
programlockpulsewidth = &lt;num&gt;; # PP only
programlockpolltimeout = &lt;num&gt;;
# JTAG ICE mkII parameters, also from XML files
allowfullpagebitstream = &lt;yes/no&gt; ;
enablepageprogramming = &lt;yes/no&gt; ;
idr = &lt;num&gt; ; # IO addr of IDR (OCD) reg.
rampz = &lt;num&gt; ; # IO addr of RAMPZ reg.
spmcr = &lt;num&gt; ; # mem addr of SPMC[S]R reg.
eecr = &lt;num&gt; ; # mem addr of EECR reg.
# (only when != 0x3c)
is_at90s1200 = &lt;yes/no&gt; ; # AT90S1200 part
is_avr32 = &lt;yes/no&gt; ; # AVR32 part
memory &lt;memtype&gt;
paged = &lt;yes/no&gt; ; # yes / no
size = &lt;num&gt; ; # bytes
page_size = &lt;num&gt; ; # bytes
num_pages = &lt;num&gt; ; # numeric
min_write_delay = &lt;num&gt; ; # micro-seconds
max_write_delay = &lt;num&gt; ; # micro-seconds
readback_p1 = &lt;num&gt; ; # byte value
readback_p2 = &lt;num&gt; ; # byte value
pwroff_after_write = &lt;yes/no&gt; ; # yes / no
read = &lt;instruction format&gt; ;
write = &lt;instruction format&gt; ;
read_lo = &lt;instruction format&gt; ;
read_hi = &lt;instruction format&gt; ;
write_lo = &lt;instruction format&gt; ;
write_hi = &lt;instruction format&gt; ;
loadpage_lo = &lt;instruction format&gt; ;
loadpage_hi = &lt;instruction format&gt; ;
writepage = &lt;instruction format&gt; ;
;
;
</pre></div>
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<a name="Parent-Part-1"></a>
<h3 class="subsection">4.3.1 Parent Part</h3>
<p>Parts can also inherit parameters from previously defined parts
using the following syntax. In this case specified integer and
string values override parameter values from the parent part. New
memory definitions are added to the definitions inherited from the
parent.
</p>
<div class="smallexample">
<pre class="smallexample"> part parent &lt;id&gt; # quoted string
id = &lt;id&gt; ; # quoted string
&lt;any set of other parameters from the list above&gt;
;
</pre></div>
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<a name="Instruction-Format-1"></a>
<h3 class="subsection">4.3.2 Instruction Format</h3>
<p>Instruction formats are specified as a comma separated list of string
values containing information (bit specifiers) about each of the 32 bits
of the instruction. Bit specifiers may be one of the following formats:
</p>
<dl compact="compact">
<dt><code>1</code></dt>
<dd><p>The bit is always set on input as well as output
</p>
</dd>
<dt><code>0</code></dt>
<dd><p>the bit is always clear on input as well as output
</p>
</dd>
<dt><code>x</code></dt>
<dd><p>the bit is ignored on input and output
</p>
</dd>
<dt><code>a</code></dt>
<dd><p>the bit is an address bit, the bit-number matches this bit specifier&rsquo;s
position within the current instruction byte
</p>
</dd>
<dt><code>a<var>N</var></code></dt>
<dd><p>the bit is the <var>N</var>th address bit, bit-number = N, i.e., <code>a12</code>
is address bit 12 on input, <code>a0</code> is address bit 0.
</p>
</dd>
<dt><code>i</code></dt>
<dd><p>the bit is an input data bit
</p>
</dd>
<dt><code>o</code></dt>
<dd><p>the bit is an output data bit
</p>
</dd>
</dl>
<p>Each instruction must be composed of 32 bit specifiers. The instruction
specification closely follows the instruction data provided in Atmel&rsquo;s
data sheets for their parts. For example, the EEPROM read and write
instruction for an AT90S2313 AVR part could be encoded as:
</p>
<div class="smallexample">
<pre class="smallexample">
read = &quot;1 0 1 0 0 0 0 0 x x x x x x x x&quot;,
&quot;x a6 a5 a4 a3 a2 a1 a0 o o o o o o o o&quot;;
write = &quot;1 1 0 0 0 0 0 0 x x x x x x x x&quot;,
&quot;x a6 a5 a4 a3 a2 a1 a0 i i i i i i i i&quot;;
</pre></div>
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<a name="Other-Notes-1"></a>
<h2 class="section">4.4 Other Notes</h2>
<ul>
<li>
The <code>devicecode</code> parameter is the device code used by the STK500
and is obtained from the software section (<code>avr061.zip</code>) of
Atmel&rsquo;s AVR061 application note available from
<a href="http://www.atmel.com/dyn/resources/prod_documents/doc2525.pdf">http://www.atmel.com/dyn/resources/prod_documents/doc2525.pdf</a>.
</li><li>
Not all memory types will implement all instructions.
</li><li>
AVR Fuse bits and Lock bits are implemented as a type of memory.
</li><li>
Example memory types are: <code>flash</code>, <code>eeprom</code>, <code>fuse</code>,
<code>lfuse</code> (low fuse), <code>hfuse</code> (high fuse), <code>efuse</code>
(extended fuse), <code>signature</code>, <code>calibration</code>, <code>lock</code>.
</li><li>
The memory type specified on the AVRDUDE command line must match one of
the memory types defined for the specified chip.
</li><li>
The <code>pwroff_after_write</code> flag causes AVRDUDE to attempt to power
the device off and back on after an unsuccessful write to the affected
memory area if VCC programmer pins are defined. If VCC pins are not
defined for the programmer, a message indicating that the device needs a
power-cycle is printed out. This flag was added to work around a
problem with the at90s4433/2333&rsquo;s; see the at90s4433 errata at:
<p> <a href="http://www.atmel.com/dyn/resources/prod_documents/doc1280.pdf">http://www.atmel.com/dyn/resources/prod_documents/doc1280.pdf</a>
</p>
</li><li>
The boot loader from application note AVR109 (and thus also the AVR
Butterfly) does not support writing of fuse bits. Writing lock bits
is supported, but is restricted to the boot lock bits (BLBxx). These
are restrictions imposed by the underlying SPM instruction that is used
to program the device from inside the boot loader. Note that programming
the boot lock bits can result in a &ldquo;shoot-into-your-foot&rdquo; scenario as
the only way to unprogram these bits is a chip erase, which will also
erase the boot loader code.
<p>The boot loader implements the &ldquo;chip erase&rdquo; function by erasing the
flash pages of the application section.
</p>
<p>Reading fuse and lock bits is fully supported.
</p>
</li></ul>
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<h1 class="chapter">5 Programmer Specific Information</h1>
<table class="menu" border="0" cellspacing="0">
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</td></tr>
<tr><td align="left" valign="top"><a href="avrdude_16.html#Atmel-DFU-bootloader-using-FLIP-version-1">5.2 Atmel DFU bootloader using FLIP version 1</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top"><a href="avrdude_17.html#SerialUPDI-programmer">5.3 SerialUPDI programmer</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
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<a name="Atmel-STK600-1"></a>
<h2 class="section">5.1 Atmel STK600</h2>
<p>The following devices are supported by the respective STK600 routing
and socket card:
</p>
<table>
<thead><tr><th width="25%">Routing card</th><th width="25%">Socket card</th><th width="50%">Devices</th></tr></thead>
<tr><td width="25%"><code></code></td><td width="25%"><code>STK600-ATTINY10</code></td><td width="50%">ATtiny4 ATtiny5 ATtiny9 ATtiny10</td></tr>
<tr><td width="25%"><code>STK600-RC008T-2</code></td><td width="25%"><code>STK600-DIP</code></td><td width="50%">ATtiny11 ATtiny12 ATtiny13 ATtiny13A ATtiny25 ATtiny45 ATtiny85</td></tr>
<tr><td width="25%"><code>STK600-RC008T-7</code></td><td width="25%"><code>STK600-DIP</code></td><td width="50%">ATtiny15</td></tr>
<tr><td width="25%"><code>STK600-RC014T-42</code></td><td width="25%"><code>STK600-SOIC</code></td><td width="50%">ATtiny20</td></tr>
<tr><td width="25%"><code>STK600-RC020T-1</code></td><td width="25%"><code>STK600-DIP</code></td><td width="50%">ATtiny2313 ATtiny2313A ATtiny4313</td></tr>
<tr><td width="25%"><code></code></td><td width="25%"><code>STK600-TinyX3U</code></td><td width="50%">ATtiny43U</td></tr>
<tr><td width="25%"><code>STK600-RC014T-12</code></td><td width="25%"><code>STK600-DIP</code></td><td width="50%">ATtiny24 ATtiny44 ATtiny84 ATtiny24A ATtiny44A</td></tr>
<tr><td width="25%"><code>STK600-RC020T-8</code></td><td width="25%"><code>STK600-DIP</code></td><td width="50%">ATtiny26 ATtiny261 ATtiny261A ATtiny461 ATtiny861 ATtiny861A</td></tr>
<tr><td width="25%"><code>STK600-RC020T-43</code></td><td width="25%"><code>STK600-SOIC</code></td><td width="50%">ATtiny261 ATtiny261A ATtiny461 ATtiny461A ATtiny861 ATtiny861A</td></tr>
<tr><td width="25%"><code>STK600-RC020T-23</code></td><td width="25%"><code>STK600-SOIC</code></td><td width="50%">ATtiny87 ATtiny167</td></tr>
<tr><td width="25%"><code>STK600-RC028T-3</code></td><td width="25%"><code>STK600-DIP</code></td><td width="50%">ATtiny28</td></tr>
<tr><td width="25%"><code>STK600-RC028M-6</code></td><td width="25%"><code>STK600-DIP</code></td><td width="50%">ATtiny48 ATtiny88 ATmega8 ATmega8A ATmega48 ATmega88 ATmega168 ATmega48P ATmega48PA ATmega88P ATmega88PA ATmega168P ATmega168PA ATmega328P</td></tr>
<tr><td width="25%"><code></code></td><td width="25%"><code>QT600-ATTINY88-QT8</code></td><td width="50%">ATtiny88</td></tr>
<tr><td width="25%"><code>STK600-RC040M-4</code></td><td width="25%"><code>STK600-DIP</code></td><td width="50%">ATmega8515 ATmega162</td></tr>
<tr><td width="25%"><code>STK600-RC044M-30</code></td><td width="25%"><code>STK600-TQFP44</code></td><td width="50%">ATmega8515 ATmega162</td></tr>
<tr><td width="25%"><code>STK600-RC040M-5</code></td><td width="25%"><code>STK600-DIP</code></td><td width="50%">ATmega8535 ATmega16 ATmega16A ATmega32 ATmega32A ATmega164P ATmega164PA ATmega324P ATmega324PA ATmega644 ATmega644P ATmega644PA ATmega1284P</td></tr>
<tr><td width="25%"><code>STK600-RC044M-31</code></td><td width="25%"><code>STK600-TQFP44</code></td><td width="50%">ATmega8535 ATmega16 ATmega16A ATmega32 ATmega32A ATmega164P ATmega164PA ATmega324P ATmega324PA ATmega644 ATmega644P ATmega644PA ATmega1284P</td></tr>
<tr><td width="25%"><code></code></td><td width="25%"><code>QT600-ATMEGA324-QM64</code></td><td width="50%">ATmega324PA</td></tr>
<tr><td width="25%"><code>STK600-RC032M-29</code></td><td width="25%"><code>STK600-TQFP32</code></td><td width="50%">ATmega8 ATmega8A ATmega48 ATmega88 ATmega168 ATmega48P ATmega48PA ATmega88P ATmega88PA ATmega168P ATmega168PA ATmega328P</td></tr>
<tr><td width="25%"><code>STK600-RC064M-9</code></td><td width="25%"><code>STK600-TQFP64</code></td><td width="50%">ATmega64 ATmega64A ATmega128 ATmega128A ATmega1281 ATmega2561 AT90CAN32 AT90CAN64 AT90CAN128</td></tr>
<tr><td width="25%"><code>STK600-RC064M-10</code></td><td width="25%"><code>STK600-TQFP64</code></td><td width="50%">ATmega165 ATmega165P ATmega169 ATmega169P ATmega169PA ATmega325 ATmega325P ATmega329 ATmega329P ATmega645 ATmega649 ATmega649P</td></tr>
<tr><td width="25%"><code>STK600-RC100M-11</code></td><td width="25%"><code>STK600-TQFP100</code></td><td width="50%">ATmega640 ATmega1280 ATmega2560</td></tr>
<tr><td width="25%"><code></code></td><td width="25%"><code>STK600-ATMEGA2560</code></td><td width="50%">ATmega2560</td></tr>
<tr><td width="25%"><code>STK600-RC100M-18</code></td><td width="25%"><code>STK600-TQFP100</code></td><td width="50%">ATmega3250 ATmega3250P ATmega3290 ATmega3290P ATmega6450 ATmega6490</td></tr>
<tr><td width="25%"><code>STK600-RC032U-20</code></td><td width="25%"><code>STK600-TQFP32</code></td><td width="50%">AT90USB82 AT90USB162 ATmega8U2 ATmega16U2 ATmega32U2</td></tr>
<tr><td width="25%"><code>STK600-RC044U-25</code></td><td width="25%"><code>STK600-TQFP44</code></td><td width="50%">ATmega16U4 ATmega32U4</td></tr>
<tr><td width="25%"><code>STK600-RC064U-17</code></td><td width="25%"><code>STK600-TQFP64</code></td><td width="50%">ATmega32U6 AT90USB646 AT90USB1286 AT90USB647 AT90USB1287</td></tr>
<tr><td width="25%"><code>STK600-RCPWM-22</code></td><td width="25%"><code>STK600-TQFP32</code></td><td width="50%">ATmega32C1 ATmega64C1 ATmega16M1 ATmega32M1 ATmega64M1</td></tr>
<tr><td width="25%"><code>STK600-RCPWM-19</code></td><td width="25%"><code>STK600-SOIC</code></td><td width="50%">AT90PWM2 AT90PWM3 AT90PWM2B AT90PWM3B AT90PWM216 AT90PWM316</td></tr>
<tr><td width="25%"><code>STK600-RCPWM-26</code></td><td width="25%"><code>STK600-SOIC</code></td><td width="50%">AT90PWM81</td></tr>
<tr><td width="25%"><code>STK600-RC044M-24</code></td><td width="25%"><code>STK600-TSSOP44</code></td><td width="50%">ATmega16HVB ATmega32HVB</td></tr>
<tr><td width="25%"><code></code></td><td width="25%"><code>STK600-HVE2</code></td><td width="50%">ATmega64HVE</td></tr>
<tr><td width="25%"><code></code></td><td width="25%"><code>STK600-ATMEGA128RFA1</code></td><td width="50%">ATmega128RFA1</td></tr>
<tr><td width="25%"><code>STK600-RC100X-13</code></td><td width="25%"><code>STK600-TQFP100</code></td><td width="50%">ATxmega64A1 ATxmega128A1 ATxmega128A1_revD ATxmega128A1U</td></tr>
<tr><td width="25%"><code></code></td><td width="25%"><code>STK600-ATXMEGA1281A1</code></td><td width="50%">ATxmega128A1</td></tr>
<tr><td width="25%"><code></code></td><td width="25%"><code>QT600-ATXMEGA128A1-QT16</code></td><td width="50%">ATxmega128A1</td></tr>
<tr><td width="25%"><code>STK600-RC064X-14</code></td><td width="25%"><code>STK600-TQFP64</code></td><td width="50%">ATxmega64A3 ATxmega128A3 ATxmega256A3 ATxmega64D3 ATxmega128D3 ATxmega192D3 ATxmega256D3</td></tr>
<tr><td width="25%"><code>STK600-RC064X-14</code></td><td width="25%"><code>STK600-MLF64</code></td><td width="50%">ATxmega256A3B</td></tr>
<tr><td width="25%"><code>STK600-RC044X-15</code></td><td width="25%"><code>STK600-TQFP44</code></td><td width="50%">ATxmega32A4 ATxmega16A4 ATxmega16D4 ATxmega32D4</td></tr>
<tr><td width="25%"><code></code></td><td width="25%"><code>STK600-ATXMEGAT0</code></td><td width="50%">ATxmega32T0</td></tr>
<tr><td width="25%"><code></code></td><td width="25%"><code>STK600-uC3-144</code></td><td width="50%">AT32UC3A0512 AT32UC3A0256 AT32UC3A0128</td></tr>
<tr><td width="25%"><code>STK600-RCUC3A144-33</code></td><td width="25%"><code>STK600-TQFP144</code></td><td width="50%">AT32UC3A0512 AT32UC3A0256 AT32UC3A0128</td></tr>
<tr><td width="25%"><code>STK600-RCuC3A100-28</code></td><td width="25%"><code>STK600-TQFP100</code></td><td width="50%">AT32UC3A1512 AT32UC3A1256 AT32UC3A1128</td></tr>
<tr><td width="25%"><code>STK600-RCuC3B0-21</code></td><td width="25%"><code>STK600-TQFP64-2</code></td><td width="50%">AT32UC3B0256 AT32UC3B0512RevC AT32UC3B0512 AT32UC3B0128 AT32UC3B064 AT32UC3D1128</td></tr>
<tr><td width="25%"><code>STK600-RCuC3B48-27</code></td><td width="25%"><code>STK600-TQFP48</code></td><td width="50%">AT32UC3B1256 AT32UC3B164</td></tr>
<tr><td width="25%"><code>STK600-RCUC3A144-32</code></td><td width="25%"><code>STK600-TQFP144</code></td><td width="50%">AT32UC3A3512 AT32UC3A3256 AT32UC3A3128 AT32UC3A364 AT32UC3A3256S AT32UC3A3128S AT32UC3A364S</td></tr>
<tr><td width="25%"><code>STK600-RCUC3C0-36</code></td><td width="25%"><code>STK600-TQFP144</code></td><td width="50%">AT32UC3C0512 AT32UC3C0256 AT32UC3C0128 AT32UC3C064</td></tr>
<tr><td width="25%"><code>STK600-RCUC3C1-38</code></td><td width="25%"><code>STK600-TQFP100</code></td><td width="50%">AT32UC3C1512 AT32UC3C1256 AT32UC3C1128 AT32UC3C164</td></tr>
<tr><td width="25%"><code>STK600-RCUC3C2-40</code></td><td width="25%"><code>STK600-TQFP64-2</code></td><td width="50%">AT32UC3C2512 AT32UC3C2256 AT32UC3C2128 AT32UC3C264</td></tr>
<tr><td width="25%"><code>STK600-RCUC3C0-37</code></td><td width="25%"><code>STK600-TQFP144</code></td><td width="50%">AT32UC3C0512 AT32UC3C0256 AT32UC3C0128 AT32UC3C064</td></tr>
<tr><td width="25%"><code>STK600-RCUC3C1-39</code></td><td width="25%"><code>STK600-TQFP100</code></td><td width="50%">AT32UC3C1512 AT32UC3C1256 AT32UC3C1128 AT32UC3C164</td></tr>
<tr><td width="25%"><code>STK600-RCUC3C2-41</code></td><td width="25%"><code>STK600-TQFP64-2</code></td><td width="50%">AT32UC3C2512 AT32UC3C2256 AT32UC3C2128 AT32UC3C264</td></tr>
<tr><td width="25%"><code>STK600-RCUC3L0-34</code></td><td width="25%"><code>STK600-TQFP48</code></td><td width="50%">AT32UC3L064 AT32UC3L032 AT32UC3L016</td></tr>
<tr><td width="25%"><code></code></td><td width="25%"><code>QT600-AT32UC3L-QM64</code></td><td width="50%">AT32UC3L064</td></tr>
</table>
<p>Ensure the correct socket and routing card are mounted <em>before</em>
powering on the STK600. While the STK600 firmware ensures the socket
and routing card mounted match each other (using a table stored
internally in nonvolatile memory), it cannot handle the case where a
wrong routing card is used, e. g. the routing card
<code>STK600-RC040M-5</code> (which is meant for 40-pin DIP AVRs that have
an ADC, with the power supply pins in the center of the package) was
used but an ATmega8515 inserted (which uses the &ldquo;industry standard&rdquo;
pinout with Vcc and GND at opposite corners).
</p>
<p>Note that for devices that use the routing card <code>STK600-RC008T-2</code>,
in order to use ISP mode, the jumper for <code>AREF0</code> must be removed
as it would otherwise block one of the ISP signals. High-voltage
serial programming can be used even with that jumper installed.
</p>
<p>The ISP system of the STK600 contains a detection against shortcuts
and other wiring errors. AVRDUDE initiates a connection check before
trying to enter ISP programming mode, and display the result if the
target is not found ready to be ISP programmed.
</p>
<p>High-voltage programming requires the target voltage to be set to at
least 4.5 V in order to work. This can be done using
<em>Terminal Mode</em>, see <a href="avrdude_6.html#Terminal-Mode-Operation">Terminal Mode Operation</a>.
</p>
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<a name="Atmel-DFU-bootloader-using-FLIP-version-1-1"></a>
<h2 class="section">5.2 Atmel DFU bootloader using FLIP version 1</h2>
<p>Bootloaders using the FLIP protocol version 1 experience some very
specific behaviour.
</p>
<p>These bootloaders have no option to access memory areas other than
Flash and EEPROM.
</p>
<p>When the bootloader is started, it enters a <em>security mode</em> where
the only acceptable access is to query the device configuration
parameters (which are used for the signature on AVR devices). The
only way to leave this mode is a <em>chip erase</em>. As a chip erase
is normally implied by the &lsquo;<samp>-U</samp>&rsquo; option when reprogramming the
flash, this peculiarity might not be very obvious immediately.
</p>
<p>Sometimes, a bootloader with security mode already disabled seems to
no longer respond with sensible configuration data, but only 0xFF for
all queries. As these queries are used to obtain the equivalent of a
signature, AVRDUDE can only continue in that situation by forcing the
signature check to be overridden with the &lsquo;<samp>-F</samp>&rsquo; option.
</p>
<p>A <em>chip erase</em> might leave the EEPROM unerased, at least on some
versions of the bootloader.
</p>
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<a name="SerialUPDI-programmer-1"></a>
<h2 class="section">5.3 SerialUPDI programmer</h2>
<p>SerialUPDI programmer can be used for programming UPDI-only devices
using very simple serial connection.
You can read more about the details here
<a href="https://github.com/SpenceKonde/AVR-Guidance/blob/master/UPDI/jtag2updi.md">https://github.com/SpenceKonde/AVR-Guidance/blob/master/UPDI/jtag2updi.md</a>
</p>
<p>SerialUPDI programmer has been tested using FT232RL USB-&gt;UART interface
with the following connection layout (copied from Spence Kohde&rsquo;s page linked
above):
</p>
<div class="example">
<pre class="example">-------------------- To Target device
DTR| __________________
Rx |--------------,------------------| UPDI---\/\/----------&gt;
Tx---/\/\/\---Tx |-------|&lt;|---' .--------| Gnd 470 ohm
resistor Vcc|---------------------------------| Vcc
1k CTS| .` |__________________
Gnd|--------------------'
--------------------
</pre></div>
<p>There are several limitations in current SerialUPDI/AVRDUDE integration,
listed below.
</p>
<p>At the end of each run there are fuse values being presented to the user.
For most of the UPDI-enabled devices these definitions (low fuse, high
fuse, extended fuse) have no meaning whatsoever, as they have been
simply replaced by array of fuses: fuse0..9. Therefore you can simply
ignore this particular line of AVRDUDE output.
</p>
<p>Currently available devices support only UPDI NVM programming model 0
and 2, but there is also experimental implementation of model 3 - not
yet tested.
</p>
<p>One of the core AVRDUDE features is verification of the connection by
reading device signature prior to any operation, but this operation
is not possible on UPDI locked devices. Therefore, to be able to
connect to such a device, you have to provide &lsquo;<samp>-F</samp>&rsquo; to override
this check.
</p>
<p>Please note: using &lsquo;<samp>-F</samp>&rsquo; during write operation to locked device
will force chip erase. Use carefully.
</p>
<p>Another issue you might notice is slow performance of EEPROM writing
using SerialUPDI for AVR Dx devices. This can be addressed by changing
<em>avrdude.conf</em> section for this device - changing EEPROM page
size to 0x20 (instead of default 1), like so:
</p>
<div class="example">
<pre class="example">#------------------------------------------------------------
# AVR128DB28
#------------------------------------------------------------
part parent &quot;.avrdx&quot;
id = &quot;avr128db28&quot;;
desc = &quot;AVR128DB28&quot;;
signature = 0x1E 0x97 0x0E;
memory &quot;flash&quot;
size = 0x20000;
offset = 0x800000;
page_size = 0x200;
readsize = 0x100;
;
memory &quot;eeprom&quot;
size = 0x200;
offset = 0x1400;
page_size = 0x1;
readsize = 0x100;
;
;
</pre></div>
<p>USERROW memory has not been defined for new devices except for
experimental addition for AVR128DB28. The point of USERROW is to
provide ability to write configuration details to already locked
device and currently SerialUPDI interface supports this feature,
but it hasn&rsquo;t been tested on wide variety of chips. Treat this as
something experimental at this point. Please note: on locked devices
it&rsquo;s not possible to read back USERROW contents when written, so
the automatic verification will most likely fail and to prevent
error messages, use &lsquo;<samp>-V</samp>&rsquo;.
</p>
<p>Please note that SerialUPDI interface is pretty new and some
issues are to be expected. In case you run into them, please
make sure to run the intended command with debug output enabled
(&lsquo;<samp>-v -v -v</samp>&rsquo;) and provide this verbose output with your
bug report. You can also try to perform the same action using
<em>pymcuprog</em> (<a href="https://github.com/microchip-pic-avr-tools/pymcuprog">https://github.com/microchip-pic-avr-tools/pymcuprog</a>)
utility with &lsquo;<samp>-v debug</samp>&rsquo; and provide its output too.
You will notice that both outputs are pretty similar, and this
was implemented like that on purpose - it was supposed to make
analysis of UPDI protocol quirks easier.
</p>
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<a name="Platform-Dependent-Information-1"></a>
<h1 class="appendix">Appendix A Platform Dependent Information</h1>
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</td></tr>
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<a name="Unix-1"></a>
<h2 class="section">A.1 Unix</h2>
<table class="menu" border="0" cellspacing="0">
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</td></tr>
<tr><td align="left" valign="top"><a href="#Unix-Configuration-Files">A.1.2 Unix Configuration Files</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top"><a href="#Unix-Port-Names">A.1.3 Unix Port Names</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top"><a href="#Unix-Documentation">A.1.4 Unix Documentation</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
</table>
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<a name="Unix-Installation-1"></a>
<h3 class="subsection">A.1.1 Unix Installation</h3>
<p>To build and install from the source tarball on Unix like systems:
</p>
<div class="example">
<pre class="example">$ gunzip -c avrdude-6.99-20211218.tar.gz | tar xf -
$ cd avrdude-6.99-20211218
$ ./configure
$ make
$ su root -c 'make install'
</pre></div>
<p>The default location of the install is into <code>/usr/local</code> so you
will need to be sure that <code>/usr/local/bin</code> is in your <code>PATH</code>
environment variable.
</p>
<p>If you do not have root access to your system, you can do the
following instead:
</p>
<div class="example">
<pre class="example">$ gunzip -c avrdude-6.99-20211218.tar.gz | tar xf -
$ cd avrdude-6.99-20211218
$ ./configure --prefix=$HOME/local
$ make
$ make install
</pre></div>
<table class="menu" border="0" cellspacing="0">
<tr><td align="left" valign="top"><a href="#FreeBSD-Installation">A.1.1.1 FreeBSD Installation</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top"><a href="#Linux-Installation">A.1.1.2 Linux Installation</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
</table>
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<a name="FreeBSD-Installation-1"></a>
<h4 class="subsubsection">A.1.1.1 FreeBSD Installation</h4>
<p>AVRDUDE is installed via the FreeBSD Ports Tree as follows:
</p>
<div class="example">
<pre class="example">% su - root
# cd /usr/ports/devel/avrdude
# make install
</pre></div>
<p>If you wish to install from a pre-built package instead of the source,
you can use the following instead:
</p>
<div class="example">
<pre class="example">% su - root
# pkg_add -r avrdude
</pre></div>
<p>Of course, you must be connected to the Internet for these methods to
work, since that is where the source as well as the pre-built package is
obtained.
</p>
<hr>
<a name="Linux-Installation"></a>
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<a name="Linux-Installation-1"></a>
<h4 class="subsubsection">A.1.1.2 Linux Installation</h4>
<p>On rpm based Linux systems (such as RedHat, SUSE, Mandrake, etc.), you
can build and install the rpm binaries directly from the tarball:
</p>
<div class="example">
<pre class="example">$ su - root
# rpmbuild -tb avrdude-6.99-20211218.tar.gz
# rpm -Uvh /usr/src/redhat/RPMS/i386/avrdude-6.99-20211218-1.i386.rpm
</pre></div>
<p>Note that the path to the resulting rpm package, differs from system
to system. The above example is specific to RedHat.
</p>
<hr>
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</tr></table>
<a name="Unix-Configuration-Files-1"></a>
<h3 class="subsection">A.1.2 Unix Configuration Files</h3>
<p>When AVRDUDE is build using the default &lsquo;<samp>--prefix</samp>&rsquo; configure
option, the default configuration file for a Unix system is located at
<code>/usr/local/etc/avrdude.conf</code>. This can be overridden by using the
&lsquo;<samp>-C</samp>&rsquo; command line option. Additionally, the user&rsquo;s home directory
is searched for a file named <code>.avrduderc</code>, and if found, is used to
augment the system default configuration file.
</p>
<table class="menu" border="0" cellspacing="0">
<tr><td align="left" valign="top"><a href="#FreeBSD-Configuration-Files">A.1.2.1 FreeBSD Configuration Files</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top"><a href="#Linux-Configuration-Files">A.1.2.2 Linux Configuration Files</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
</table>
<hr>
<a name="FreeBSD-Configuration-Files"></a>
<table class="header" cellpadding="1" cellspacing="1" border="0">
<tr><td valign="middle" align="left">[<a href="avrdude_18.html#Platform-Dependent-Information" title="Beginning of this chapter or previous chapter"> &lt;&lt; </a>]</td>
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<td valign="middle" align="left">[<a href="#Unix-Configuration-Files" title="Up section"> Up </a>]</td>
<td valign="middle" align="left">[<a href="#Linux-Configuration-Files" title="Next section in reading order"> &gt; </a>]</td>
<td valign="middle" align="left">[<a href="avrdude_21.html#Troubleshooting" title="Next chapter"> &gt;&gt; </a>]</td>
<td valign="middle" align="left"> &nbsp; </td>
<td valign="middle" align="left"> &nbsp; </td>
<td valign="middle" align="left"> &nbsp; </td>
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</tr></table>
<a name="FreeBSD-Configuration-Files-1"></a>
<h4 class="subsubsection">A.1.2.1 FreeBSD Configuration Files</h4>
<p>When AVRDUDE is installed using the FreeBSD ports system, the system
configuration file is always <code>/usr/local/etc/avrdude.conf</code>.
</p>
<hr>
<a name="Linux-Configuration-Files"></a>
<table class="header" cellpadding="1" cellspacing="1" border="0">
<tr><td valign="middle" align="left">[<a href="avrdude_18.html#Platform-Dependent-Information" title="Beginning of this chapter or previous chapter"> &lt;&lt; </a>]</td>
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<td valign="middle" align="left">[<a href="#Unix-Configuration-Files" title="Up section"> Up </a>]</td>
<td valign="middle" align="left">[<a href="#Unix-Port-Names" title="Next section in reading order"> &gt; </a>]</td>
<td valign="middle" align="left">[<a href="avrdude_21.html#Troubleshooting" title="Next chapter"> &gt;&gt; </a>]</td>
<td valign="middle" align="left"> &nbsp; </td>
<td valign="middle" align="left"> &nbsp; </td>
<td valign="middle" align="left"> &nbsp; </td>
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<td valign="middle" align="left">[Index]</td>
<td valign="middle" align="left">[<a href="avrdude_abt.html#SEC_About" title="About (help)"> ? </a>]</td>
</tr></table>
<a name="Linux-Configuration-Files-1"></a>
<h4 class="subsubsection">A.1.2.2 Linux Configuration Files</h4>
<p>When AVRDUDE is installed using from an rpm package, the system
configuration file will be always be <code>/etc/avrdude.conf</code>.
</p>
<hr>
<a name="Unix-Port-Names"></a>
<table class="header" cellpadding="1" cellspacing="1" border="0">
<tr><td valign="middle" align="left">[<a href="avrdude_18.html#Platform-Dependent-Information" title="Beginning of this chapter or previous chapter"> &lt;&lt; </a>]</td>
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<td valign="middle" align="left">[<a href="#Unix" title="Up section"> Up </a>]</td>
<td valign="middle" align="left">[<a href="#Unix-Documentation" title="Next section in reading order"> &gt; </a>]</td>
<td valign="middle" align="left">[<a href="avrdude_21.html#Troubleshooting" title="Next chapter"> &gt;&gt; </a>]</td>
<td valign="middle" align="left"> &nbsp; </td>
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<td valign="middle" align="left"> &nbsp; </td>
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<td valign="middle" align="left">[<a href="avrdude.html#Introduction" title="Cover (top) of document">Top</a>]</td>
<td valign="middle" align="left">[<a href="avrdude_toc.html#SEC_Contents" title="Table of contents">Contents</a>]</td>
<td valign="middle" align="left">[Index]</td>
<td valign="middle" align="left">[<a href="avrdude_abt.html#SEC_About" title="About (help)"> ? </a>]</td>
</tr></table>
<a name="Unix-Port-Names-1"></a>
<h3 class="subsection">A.1.3 Unix Port Names</h3>
<p>The parallel and serial port device file names are system specific.
The following table lists the default names for a given system.
</p>
<table>
<tr><td width="30%"><strong>System</strong></td><td width="30%"><strong>Default Parallel Port</strong></td><td width="30%"><strong>Default Serial Port</strong></td></tr>
<tr><td width="30%">FreeBSD</td><td width="30%"><code>/dev/ppi0</code></td><td width="30%"><code>/dev/cuad0</code></td></tr>
<tr><td width="30%">Linux</td><td width="30%"><code>/dev/parport0</code></td><td width="30%"><code>/dev/ttyS0</code></td></tr>
<tr><td width="30%">Solaris</td><td width="30%"><code>/dev/printers/0</code></td><td width="30%"><code>/dev/term/a</code></td></tr>
</table>
<p>On FreeBSD systems, AVRDUDE uses the ppi(4) interface for
accessing the parallel port and the sio(4) driver for serial port
access.
</p>
<p>On Linux systems, AVRDUDE uses the ppdev interface for
accessing the parallel port and the tty driver for serial port
access.
</p>
<p>On Solaris systems, AVRDUDE uses the ecpp(7D) driver for
accessing the parallel port and the asy(7D) driver for serial port
access.
</p>
<hr>
<a name="Unix-Documentation"></a>
<table class="header" cellpadding="1" cellspacing="1" border="0">
<tr><td valign="middle" align="left">[<a href="avrdude_18.html#Platform-Dependent-Information" title="Beginning of this chapter or previous chapter"> &lt;&lt; </a>]</td>
<td valign="middle" align="left">[<a href="#Unix-Port-Names" title="Previous section in reading order"> &lt; </a>]</td>
<td valign="middle" align="left">[<a href="#Unix" title="Up section"> Up </a>]</td>
<td valign="middle" align="left">[<a href="avrdude_20.html#Windows" title="Next section in reading order"> &gt; </a>]</td>
<td valign="middle" align="left">[<a href="avrdude_21.html#Troubleshooting" title="Next chapter"> &gt;&gt; </a>]</td>
<td valign="middle" align="left"> &nbsp; </td>
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<td valign="middle" align="left"> &nbsp; </td>
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<td valign="middle" align="left">[<a href="avrdude.html#Introduction" title="Cover (top) of document">Top</a>]</td>
<td valign="middle" align="left">[<a href="avrdude_toc.html#SEC_Contents" title="Table of contents">Contents</a>]</td>
<td valign="middle" align="left">[Index]</td>
<td valign="middle" align="left">[<a href="avrdude_abt.html#SEC_About" title="About (help)"> ? </a>]</td>
</tr></table>
<a name="Unix-Documentation-1"></a>
<h3 class="subsection">A.1.4 Unix 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 &lsquo;<samp>--prefix</samp>&rsquo;.
</p>
<hr>
<table class="header" cellpadding="1" cellspacing="1" border="0">
<tr><td valign="middle" align="left">[<a href="avrdude_18.html#Platform-Dependent-Information" title="Beginning of this chapter or previous chapter"> &lt;&lt; </a>]</td>
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<td valign="middle" align="left">[<a href="#Unix" title="Up section"> Up </a>]</td>
<td valign="middle" align="left">[<a href="avrdude_20.html#Windows" title="Next section in reading order"> &gt; </a>]</td>
<td valign="middle" align="left">[<a href="avrdude_21.html#Troubleshooting" title="Next chapter"> &gt;&gt; </a>]</td>
</tr></table>
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<a name="Command-Line-Options-1"></a>
<h1 class="chapter">2 Command Line Options</h1>
<a name="index-options"></a>
<table class="menu" border="0" cellspacing="0">
<tr><td align="left" valign="top"><a href="avrdude_3.html#Option-Descriptions">2.1 Option Descriptions</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top"><a href="avrdude_4.html#Programmers-accepting-extended-parameters">2.2 Programmers accepting extended parameters</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top"><a href="avrdude_5.html#Example-Command-Line-Invocations">2.3 Example Command Line Invocations</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
</table>
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<a name="Windows"></a>
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<tr><td valign="middle" align="left">[<a href="avrdude_18.html#Platform-Dependent-Information" title="Beginning of this chapter or previous chapter"> &lt;&lt; </a>]</td>
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<td valign="middle" align="left">[<a href="avrdude_18.html#Platform-Dependent-Information" title="Up section"> Up </a>]</td>
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<td valign="middle" align="left">[<a href="avrdude.html#Introduction" title="Cover (top) of document">Top</a>]</td>
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<td valign="middle" align="left">[<a href="avrdude_abt.html#SEC_About" title="About (help)"> ? </a>]</td>
</tr></table>
<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>&nbsp;&nbsp;</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>&nbsp;&nbsp;</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>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top"><a href="#Documentation">A.2.4 Documentation</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
</table>
<hr>
<a name="Windows-Installation"></a>
<table class="header" cellpadding="1" cellspacing="1" border="0">
<tr><td valign="middle" align="left">[<a href="avrdude_18.html#Platform-Dependent-Information" title="Beginning of this chapter or previous chapter"> &lt;&lt; </a>]</td>
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</tr></table>
<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=&lt;your install directory path&gt;
$ export PREFIX
$ gunzip -c avrdude-6.99-20211218.tar.gz | tar xf -
$ cd avrdude-6.99-20211218
$ ./configure LDFLAGS=&quot;-static&quot; --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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<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>&nbsp;&nbsp;</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>&nbsp;&nbsp;</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">
<tr><td valign="middle" align="left">[<a href="avrdude_18.html#Platform-Dependent-Information" title="Beginning of this chapter or previous chapter"> &lt;&lt; </a>]</td>
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<td valign="middle" align="left">[<a href="#Windows-Configuration-Files" title="Up section"> Up </a>]</td>
<td valign="middle" align="left">[<a href="#Windows-Port-Names" title="Next section in reading order"> &gt; </a>]</td>
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<td valign="middle" align="left"> &nbsp; </td>
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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>&lt;directory from which application loaded&gt;/../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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<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>&nbsp;&nbsp;</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>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
</table>
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<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>
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<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>
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<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 &lsquo;<samp>--prefix</samp>&rsquo; and &lsquo;<samp>--datadir</samp>&rsquo;.
</p>
<hr>
<table class="header" cellpadding="1" cellspacing="1" border="0">
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<a name="Troubleshooting-1"></a>
<h1 class="appendix">Appendix B Troubleshooting</h1>
<p>In general, please report any bugs encountered via
<br>
<a href="http://savannah.nongnu.org/bugs/?group=avrdude">http://savannah.nongnu.org/bugs/?group=avrdude</a>.
</p>
<ul>
<li>
Problem: I&rsquo;m using a serial programmer under Windows and get the following
error:
<p><code>avrdude: serial_open(): can't set attributes for device &quot;com1&quot;</code>,
</p>
<p>Solution: This problem seems to appear with certain versions of Cygwin. Specifying
<code>&quot;/dev/com1&quot;</code> instead of <code>&quot;com1&quot;</code> should help.
</p>
</li><li>
Problem: I&rsquo;m using Linux and my AVR910 programmer is really slow.
<p>Solution (short): <code>setserial <var>port</var> low_latency</code>
</p>
<p>Solution (long):
There are two problems here. First, the system may wait some time before it
passes data from the serial port to the program. Under Linux the following
command works around this (you may need root privileges for this).
</p>
<p><code>setserial <var>port</var> low_latency</code>
</p>
<p>Secondly, the serial interface chip may delay the interrupt for some time.
This behaviour can be changed by setting the FIFO-threshold to one. Under Linux this
can only be done by changing the kernel source in <code>drivers/char/serial.c</code>.
Search the file for <code>UART_FCR_TRIGGER_8</code> and replace it with <code>UART_FCR_TRIGGER_1</code>. Note that overall performance might suffer if there
is high throughput on serial lines. Also note that you are modifying the kernel at
your own risk.
</p>
</li><li>
Problem: I&rsquo;m not using Linux and my AVR910 programmer is really slow.
<p>Solutions: The reasons for this are the same as above.
If you know how to work around this on your OS, please let us know.
</p>
</li><li>
Problem: Updating the flash ROM from terminal mode does not work with the
JTAG ICEs.
<p>Solution: None at this time. Currently, the JTAG ICE code cannot
write to the flash ROM one byte at a time.
</p>
</li><li>
Problem: Page-mode programming the EEPROM (using the -U option) does
not erase EEPROM cells before writing, and thus cannot overwrite any
previous value != 0xff.
<p>Solution: None. This is an inherent feature of the way JTAG EEPROM
programming works, and is documented that way in the Atmel AVR
datasheets.
In order to successfully program the EEPROM that way, a prior chip
erase (with the EESAVE fuse unprogrammed) is required.
This also applies to the STK500 and STK600 in high-voltage programming mode.
</p>
</li><li>
Problem: How do I turn off the <var>DWEN</var> fuse?
<p>Solution: If the <var>DWEN</var> (debugWire enable) fuse is activated,
the <var>/RESET</var> pin is not functional anymore, so normal ISP
communication cannot be established.
There are two options to deactivate that fuse again: high-voltage
programming, or getting the JTAG ICE mkII talk debugWire, and
prepare the target AVR to accept normal ISP communication again.
</p>
<p>The first option requires a programmer that is capable of high-voltage
programming (either serial or parallel, depending on the AVR device),
for example the STK500. In high-voltage programming mode, the
<var>/RESET</var> pin is activated initially using a 12 V pulse (thus the
name <em>high voltage</em>), so the target AVR can subsequently be
reprogrammed, and the <var>DWEN</var> fuse can be cleared. Typically, this
operation cannot be performed while the AVR is located in the target
circuit though.
</p>
<p>The second option requires a JTAG ICE mkII that can talk the debugWire
protocol. The ICE needs to be connected to the target using the
JTAG-to-ISP adapter, so the JTAG ICE mkII can be used as a debugWire
initiator as well as an ISP programmer. AVRDUDE will then be activated
using the <var>jtag2isp</var> programmer type. The initial ISP
communication attempt will fail, but AVRDUDE then tries to initiate a
debugWire reset. When successful, this will leave the target AVR in a
state where it can accept standard ISP communication. The ICE is then
signed off (which will make it signing off from the USB as well), so
AVRDUDE has to be called again afterwards. This time, standard ISP
communication can work, so the <var>DWEN</var> fuse can be cleared.
</p>
<p>The pin mapping for the JTAG-to-ISP adapter is:
</p>
<table>
<tr><td width="20%"><strong>JTAG pin</strong></td><td width="20%"><strong>ISP pin</strong></td></tr>
<tr><td width="20%">1</td><td width="20%">3</td></tr>
<tr><td width="20%">2</td><td width="20%">6</td></tr>
<tr><td width="20%">3</td><td width="20%">1</td></tr>
<tr><td width="20%">4</td><td width="20%">2</td></tr>
<tr><td width="20%">6</td><td width="20%">5</td></tr>
<tr><td width="20%">9</td><td width="20%">4</td></tr>
</table>
</li><li>
Problem: Multiple USBasp or USBtinyISP programmers connected simultaneously are not
found.
<p>Solution: The USBtinyISP code supports distinguishing multiple
programmers based on their bus:device connection tuple that describes
their place in the USB hierarchy on a specific host. This tuple can
be added to the <var>-P usb</var> option, similar to adding a serial number
on other USB-based programmers.
</p>
<p>The actual naming convention for the bus and device names is
operating-system dependent; AVRDUDE will print out what it found
on the bus when running it with (at least) one <var>-v</var> option.
By specifying a string that cannot match any existing device
(for example, <var>-P usb:xxx</var>), the scan will list all possible
candidate devices found on the bus.
</p>
<p>Examples:
</p><div class="example">
<pre class="example">avrdude -c usbtiny -p atmega8 -P usb:003:025 (Linux)
avrdude -c usbtiny -p atmega8 -P usb:/dev/usb:/dev/ugen1.3 (FreeBSD 8+)
avrdude -c usbtiny -p atmega8 \
-P usb:bus-0:\\.\libusb0-0001--0x1781-0x0c9f (Windows)
</pre></div>
</li><li>
Problem: I cannot do &hellip; when the target is in debugWire mode.
<p>Solution: debugWire mode imposes several limitations.
</p>
<p>The debugWire protocol is Atmel&rsquo;s proprietary one-wire (plus ground)
protocol to allow an in-circuit emulation of the smaller AVR devices,
using the <var>/RESET</var> line.
DebugWire mode is initiated by activating the <var>DWEN</var>
fuse, and then power-cycling the target.
While this mode is mainly intended for debugging/emulation, it
also offers limited programming capabilities.
Effectively, the only memory areas that can be read or programmed
in this mode are flash ROM and EEPROM.
It is also possible to read out the signature.
All other memory areas cannot be accessed.
There is no
<em>chip erase</em>
functionality in debugWire mode; instead, while reprogramming the
flash ROM, each flash ROM page is erased right before updating it.
This is done transparently by the JTAG ICE mkII (or AVR Dragon).
The only way back from debugWire mode is to initiate a special
sequence of commands to the JTAG ICE mkII (or AVR Dragon), so the
debugWire mode will be temporarily disabled, and the target can
be accessed using normal ISP programming.
This sequence is automatically initiated by using the JTAG ICE mkII
or AVR Dragon in ISP mode, when they detect that ISP mode cannot be
entered.
</p>
</li><li>
Problem: I want to use my JTAG ICE mkII to program an
Xmega device through PDI. The documentation tells me to use the
<em>XMEGA PDI adapter for JTAGICE mkII</em> that is supposed to ship
with the kit, yet I don&rsquo;t have it.
<p>Solution: Use the following pin mapping:
</p>
<table>
<tr><td width="20%"><strong>JTAGICE</strong></td><td width="20%"><strong>Target</strong></td><td width="20%"><strong>Squid cab-</strong></td><td width="20%"><strong>PDI</strong></td></tr>
<tr><td width="20%"><strong>mkII probe</strong></td><td width="20%"><strong>pins</strong></td><td width="20%"><strong>le colors</strong></td><td width="20%"><strong>header</strong></td></tr>
<tr><td width="20%">1 (TCK)</td><td width="20%"></td><td width="20%">Black</td><td width="20%"></td></tr>
<tr><td width="20%">2 (GND)</td><td width="20%">GND</td><td width="20%">White</td><td width="20%">6</td></tr>
<tr><td width="20%">3 (TDO)</td><td width="20%"></td><td width="20%">Grey</td><td width="20%"></td></tr>
<tr><td width="20%">4 (VTref)</td><td width="20%">VTref</td><td width="20%">Purple</td><td width="20%">2</td></tr>
<tr><td width="20%">5 (TMS)</td><td width="20%"></td><td width="20%">Blue</td><td width="20%"></td></tr>
<tr><td width="20%">6 (nSRST)</td><td width="20%">PDI_CLK</td><td width="20%">Green</td><td width="20%">5</td></tr>
<tr><td width="20%">7 (N.C.)</td><td width="20%"></td><td width="20%">Yellow</td><td width="20%"></td></tr>
<tr><td width="20%">8 (nTRST)</td><td width="20%"></td><td width="20%">Orange</td><td width="20%"></td></tr>
<tr><td width="20%">9 (TDI)</td><td width="20%">PDI_DATA</td><td width="20%">Red</td><td width="20%">1</td></tr>
<tr><td width="20%">10 (GND)</td><td width="20%"></td><td width="20%">Brown</td><td width="20%"></td></tr>
</table>
</li><li>
Problem: I want to use my AVR Dragon to program an
Xmega device through PDI.
<p>Solution: Use the 6 pin ISP header on the Dragon and the following pin mapping:
</p>
<table>
<tr><td width="20%"><strong>Dragon</strong></td><td width="20%"><strong>Target</strong></td></tr>
<tr><td width="20%"><strong>ISP Header</strong></td><td width="20%"><strong>pins</strong></td></tr>
<tr><td width="20%">1 (MISO)</td><td width="20%">PDI_DATA</td></tr>
<tr><td width="20%">2 (VCC)</td><td width="20%">VCC</td></tr>
<tr><td width="20%">3 (SCK)</td><td width="20%"></td></tr>
<tr><td width="20%">4 (MOSI)</td><td width="20%"></td></tr>
<tr><td width="20%">5 (RESET)</td><td width="20%">PDI_CLK / RST</td></tr>
<tr><td width="20%">6 (GND)</td><td width="20%">GND</td></tr>
</table>
</li><li>
Problem: I want to use my AVRISP mkII to program an
ATtiny4/5/9/10 device through TPI. How to connect the pins?
<p>Solution: Use the following pin mapping:
</p>
<table>
<tr><td width="20%"><strong>AVRISP</strong></td><td width="20%"><strong>Target</strong></td><td width="20%"><strong>ATtiny</strong></td></tr>
<tr><td width="20%"><strong>connector</strong></td><td width="20%"><strong>pins</strong></td><td width="20%"><strong>pin #</strong></td></tr>
<tr><td width="20%">1 (MISO)</td><td width="20%">TPIDATA</td><td width="20%">1</td></tr>
<tr><td width="20%">2 (VTref)</td><td width="20%">Vcc</td><td width="20%">5</td></tr>
<tr><td width="20%">3 (SCK)</td><td width="20%">TPICLK</td><td width="20%">3</td></tr>
<tr><td width="20%">4 (MOSI)</td><td width="20%"></td><td width="20%"></td></tr>
<tr><td width="20%">5 (RESET)</td><td width="20%">/RESET</td><td width="20%">6</td></tr>
<tr><td width="20%">6 (GND)</td><td width="20%">GND</td><td width="20%">2</td></tr>
</table>
</li><li>
Problem: I want to program an ATtiny4/5/9/10 device using a serial/parallel
bitbang programmer. How to connect the pins?
<p>Solution: Since TPI has only 1 pin for bi-directional data transfer, both
<var>MISO</var> and <var>MOSI</var> pins should be connected to the <var>TPIDATA</var> pin
on the ATtiny device.
However, a 1K resistor should be placed between the <var>MOSI</var> and <var>TPIDATA</var>.
The <var>MISO</var> pin connects to <var>TPIDATA</var> directly.
The <var>SCK</var> pin is connected to <var>TPICLK</var>.
</p>
<p>In addition, the <var>Vcc</var>, <var>/RESET</var> and <var>GND</var> pins should
be connected to their respective ports on the ATtiny device.
</p>
</li><li>
Problem: How can I use a FTDI FT232R USB-to-Serial device for bitbang programming?
<p>Solution: When connecting the FT232 directly to the pins of the target Atmel device,
the polarity of the pins defined in the <code>programmer</code> definition should be
inverted by prefixing a tilde. For example, the <var>dasa</var> programmer would
look like this when connected via a FT232R device (notice the tildes in
front of pins 7, 4, 3 and 8):
</p>
<div class="example">
<pre class="example">programmer
id = &quot;dasa_ftdi&quot;;
desc = &quot;serial port banging, reset=rts sck=dtr mosi=txd miso=cts&quot;;
type = serbb;
reset = ~7;
sck = ~4;
mosi = ~3;
miso = ~8;
;
</pre></div>
<p>Note that this uses the FT232 device as a normal serial port, not using the
FTDI drivers in the special bitbang mode.
</p>
</li><li>
Problem: My ATtiny4/5/9/10 reads out fine, but any attempt to program
it (through TPI) fails. Instead, the memory retains the old contents.
<p>Solution: Mind the limited programming supply voltage range of these
devices.
</p>
<p>In-circuit programming through TPI is only guaranteed by the datasheet
at Vcc = 5 V.
</p>
</li><li>
Problem: My ATxmega&hellip;A1/A2/A3 cannot be programmed through PDI with
my AVR Dragon. Programming through a JTAG ICE mkII works though, as does
programming through JTAG.
<p>Solution: None by this time (2010 Q1).
</p>
<p>It is said that the AVR Dragon can only program devices from the A4
Xmega sub-family.
</p>
</li><li>
Problem: when programming with an AVRISPmkII or STK600, AVRDUDE hangs
when programming files of a certain size (e.g. 246 bytes). Other
(larger or smaller) sizes work though.
<p>Solution: This is a bug caused by an incorrect handling of zero-length
packets (ZLPs) in some versions of the libusb 0.1 API wrapper that ships
with libusb 1.x in certain Linux distributions. All Linux systems with
kernel versions &lt; 2.6.31 and libusb &gt;= 1.0.0 &lt; 1.0.3 are reported to be
affected by this.
</p>
<p>See also: <a href="http://www.libusb.org/ticket/6">http://www.libusb.org/ticket/6</a>
</p>
</li><li>
Problem: after flashing a firmware that reduces the target&rsquo;s clock
speed (e.g. through the <code>CLKPR</code> register), further ISP connection
attempts fail.
<p>Solution: Even though ISP starts with pulling <var>/RESET</var> low, the
target continues to run at the internal clock speed as defined by the
firmware running before. Therefore, the ISP clock speed must be
reduced appropriately (to less than 1/4 of the internal clock speed)
using the -B option before the ISP initialization sequence will
succeed.
</p>
<p>As that slows down the entire subsequent ISP session, it might make
sense to just issue a <em>chip erase</em> using the slow ISP clock
(option <code>-e</code>), and then start a new session at higher speed.
Option <code>-D</code> might be used there, to prevent another unneeded
erase cycle.
</p>
</li></ul>
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<a name="Programmers-accepting-extended-parameters"></a>
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<a name="Programmers-accepting-extended-parameters-1"></a>
<h2 class="section">2.2 Programmers accepting extended parameters</h2>
<dl compact="compact">
<dt><code>JTAG ICE mkII/3</code></dt>
<dt><code>AVR Dragon</code></dt>
<dd>
<p>When using the JTAG ICE mkII/3 or AVR Dragon in JTAG mode, the
following extended parameter is accepted:
</p><dl compact="compact">
<dt><code>&lsquo;<samp>jtagchain=UB,UA,BB,BA</samp>&rsquo;</code></dt>
<dd><p>Setup the JTAG scan chain for <var>UB</var> units before, <var>UA</var> units
after, <var>BB</var> bits before, and <var>BA</var> bits after the target AVR,
respectively.
Each AVR unit within the chain shifts by 4 bits.
Other JTAG units might require a different bit shift count.
</p></dd>
</dl>
</dd>
<dt><code>AVR910</code></dt>
<dd>
<p>The AVR910 programmer type accepts the following extended parameter:
</p><dl compact="compact">
<dt><code>&lsquo;<samp>devcode=VALUE</samp>&rsquo;</code></dt>
<dd><p>Override the device code selection by using <var>VALUE</var>
as the device code.
The programmer is not queried for the list of supported
device codes, and the specified <var>VALUE</var>
is not verified but used directly within the
<code>T</code> command sent to the programmer.
<var>VALUE</var> can be specified using the conventional number notation of the
C programming language.
</p></dd>
<dt><code>&lsquo;<samp>no_blockmode</samp>&rsquo;</code></dt>
<dd><p>Disables the default checking for block transfer capability.
Use
&lsquo;<samp>no_blockmode</samp>&rsquo; only if your &lsquo;<samp>AVR910</samp>&rsquo;
programmer creates errors during initial sequence.
</p></dd>
</dl>
</dd>
<dt><code>Arduino</code></dt>
<dd>
<p>The Arduino programmer type accepts the following extended parameter:
</p><dl compact="compact">
<dt><code>&lsquo;<samp>attemps=VALUE</samp>&rsquo;</code></dt>
<dd><p>Overide the default number of connection retry attempt by using <var>VALUE</var>.
</p></dd>
</dl>
</dd>
<dt><code>BusPirate</code></dt>
<dd>
<p>The BusPirate programmer type accepts the following extended parameters:
</p><dl compact="compact">
<dt><code>&lsquo;<samp>reset=cs,aux,aux2</samp>&rsquo;</code></dt>
<dd><p>The default setup assumes the BusPirate&rsquo;s CS output pin connected to
the RESET pin on AVR side. It is however possible to have multiple AVRs
connected to the same BP with MISO, MOSI and SCK lines common for all of them.
In such a case one AVR should have its RESET connected to BusPirate&rsquo;s
<em>CS</em>
pin, second AVR&rsquo;s RESET connected to BusPirate&rsquo;s
<em>AUX</em>
pin and if your BusPirate has an
<em>AUX2</em>
pin (only available on BusPirate version v1a with firmware 3.0 or newer)
use that to activate RESET on the third AVR.
</p>
<p>It may be a good idea to decouple the BusPirate and the AVR&rsquo;s SPI buses from
each other using a 3-state bus buffer. For example 74HC125 or 74HC244 are some
good candidates with the latches driven by the appropriate reset pin (cs,
aux or aux2). Otherwise the SPI traffic in one active circuit may interfere
with programming the AVR in the other design.
</p>
</dd>
<dt><code>&lsquo;<samp>spifreq=<var>0..7</var></samp>&rsquo;</code></dt>
<dd><table>
<tr><td width="5%"><code>0</code></td><td width="30%">30 kHz (default)</td></tr>
<tr><td width="5%"><code>1</code></td><td width="30%">125 kHz</td></tr>
<tr><td width="5%"><code>2</code></td><td width="30%">250 kHz</td></tr>
<tr><td width="5%"><code>3</code></td><td width="30%">1 MHz</td></tr>
<tr><td width="5%"><code>4</code></td><td width="30%">2 MHz</td></tr>
<tr><td width="5%"><code>5</code></td><td width="30%">2.6 MHz</td></tr>
<tr><td width="5%"><code>6</code></td><td width="30%">4 MHz</td></tr>
<tr><td width="5%"><code>7</code></td><td width="30%">8 MHz</td></tr>
</table>
</dd>
<dt><code>&lsquo;<samp>rawfreq=0..3</samp>&rsquo;</code></dt>
<dd><p>Sets the SPI speed and uses the Bus Pirate&rsquo;s binary &ldquo;raw-wire&rdquo; mode instead
of the default binary SPI mode:
</p>
<table>
<tr><td width="5%"><code>0</code></td><td width="30%">5 kHz</td></tr>
<tr><td width="5%"><code>1</code></td><td width="30%">50 kHz</td></tr>
<tr><td width="5%"><code>2</code></td><td width="30%">100 kHz (Firmware v4.2+ only)</td></tr>
<tr><td width="5%"><code>3</code></td><td width="30%">400 kHz (v4.2+)</td></tr>
</table>
<p>The only advantage of the &ldquo;raw-wire&rdquo; mode is that different SPI frequencies
are available. Paged writing is not implemented in this mode.
</p>
</dd>
<dt><code>&lsquo;<samp>ascii</samp>&rsquo;</code></dt>
<dd><p>Attempt to use ASCII mode even when the firmware supports BinMode (binary
mode).
BinMode is supported in firmware 2.7 and newer, older FW&rsquo;s either don&rsquo;t
have BinMode or their BinMode is buggy. ASCII mode is slower and makes
the above
&lsquo;<samp>reset=</samp>&rsquo;, &lsquo;<samp>spifreq=</samp>&rsquo;
and
&lsquo;<samp>rawfreq=</samp>&rsquo;
parameters unavailable. Be aware that ASCII mode is not guaranteed to work
with newer firmware versions, and is retained only to maintain compatibility
with older firmware versions.
</p>
</dd>
<dt><code>&lsquo;<samp>nopagedwrite</samp>&rsquo;</code></dt>
<dd><p>Firmware versions 5.10 and newer support a binary mode SPI command that enables
whole pages to be written to AVR flash memory at once, resulting in a
significant write speed increase. If use of this mode is not desirable for some
reason, this option disables it.
</p>
</dd>
<dt><code>&lsquo;<samp>nopagedread</samp>&rsquo;</code></dt>
<dd><p>Newer firmware versions support in binary mode SPI command some AVR Extended
Commands. Using the &ldquo;Bulk Memory Read from Flash&rdquo; results in a
significant read speed increase. If use of this mode is not desirable for some
reason, this option disables it.
</p>
</dd>
<dt><code>&lsquo;<samp>cpufreq=<var>125..4000</var></samp>&rsquo;</code></dt>
<dd><p>This sets the <em>AUX</em> pin to output a frequency of <var>n</var> kHz. Connecting
the <em>AUX</em> pin to the XTAL1 pin of your MCU, you can provide it a clock,
for example when it needs an external clock because of wrong fuses settings.
Make sure the CPU frequency is at least four times the SPI frequency.
</p>
</dd>
<dt><code>&lsquo;<samp>serial_recv_timeout=<var>1...</var></samp>&rsquo;</code></dt>
<dd><p>This sets the serial receive timeout to the given value.
The timeout happens every time avrdude waits for the BusPirate prompt.
Especially in ascii mode this happens very often, so setting a smaller value
can speed up programming a lot.
The default value is 100ms. Using 10ms might work in most cases.
</p>
</dd>
</dl>
</dd>
<dt><code>Micronucleus bootloader</code></dt>
<dd>
<p>When using the Micronucleus programmer type, the
following optional extended parameter is accepted:
</p><dl compact="compact">
<dt><code>&lsquo;<samp>wait=<var>timeout</var></samp>&rsquo;</code></dt>
<dd><p>If the device is not connected, wait for the device to be plugged in.
The optional <var>timeout</var> specifies the connection time-out in seconds.
If no time-out is specified, AVRDUDE will wait indefinitely until the
device is plugged in.
</p></dd>
</dl>
</dd>
<dt><code>Teensy bootloader</code></dt>
<dd>
<p>When using the Teensy programmer type, the
following optional extended parameter is accepted:
</p><dl compact="compact">
<dt><code>&lsquo;<samp>wait=<var>timeout</var></samp>&rsquo;</code></dt>
<dd><p>If the device is not connected, wait for the device to be plugged in.
The optional <var>timeout</var> specifies the connection time-out in seconds.
If no time-out is specified, AVRDUDE will wait indefinitely until the
device is plugged in.
</p></dd>
</dl>
</dd>
<dt><code>Wiring</code></dt>
<dd>
<p>When using the Wiring programmer type, the
following optional extended parameter is accepted:
</p><dl compact="compact">
<dt><code>&lsquo;<samp>snooze=<var>0..32767</var></samp>&rsquo;</code></dt>
<dd><p>After performing the port open phase, AVRDUDE will wait/snooze for
<var>snooze</var> milliseconds before continuing to the protocol sync phase.
No toggling of DTR/RTS is performed if <var>snooze</var> &gt; 0.
</p></dd>
</dl>
</dd>
<dt><code>PICkit2</code></dt>
<dd><p>Connection to the PICkit2 programmer:
</p><table>
<tr><td width="5%"><code>(AVR)</code></td><td width="30%"><code>(PICkit2)</code></td></tr>
<tr><td width="5%"><code>RST</code></td><td width="30%"><code>VPP/MCLR (1) </code></td></tr>
<tr><td width="5%"><code>VDD</code></td><td width="30%"><code>VDD Target (2) -- possibly optional if AVR self powered </code></td></tr>
<tr><td width="5%"><code>GND</code></td><td width="30%"><code>GND (3) </code></td></tr>
<tr><td width="5%"><code>MISO</code></td><td width="30%"><code>PGD (4) </code></td></tr>
<tr><td width="5%"><code>SCLK</code></td><td width="30%"><code>PDC (5) </code></td></tr>
<tr><td width="5%"><code>OSI</code></td><td width="30%"><code>AUX (6) </code></td></tr>
</table>
<p>Extended command line parameters:
</p><dl compact="compact">
<dt><code>&lsquo;<samp>clockrate=<var>rate</var></samp>&rsquo;</code></dt>
<dd><p>Sets the SPI clocking rate in Hz (default is 100kHz). Alternately the -B or -i options can be used to set the period.
</p></dd>
<dt><code>&lsquo;<samp>timeout=<var>usb-transaction-timeout</var></samp>&rsquo;</code></dt>
<dd><p>Sets the timeout for USB reads and writes in milliseconds (default is 1500 ms).
</p></dd>
</dl>
</dd>
<dt><code>USBasp</code></dt>
<dd><p>Extended parameters:
</p><dl compact="compact">
<dt><code>&lsquo;<samp>section_config</samp>&rsquo;</code></dt>
<dd><p>Programmer will erase
configuration section with option &rsquo;-e&rsquo; (chip erase),
rather than entire chip.
Only applicable to TPI devices (ATtiny 4/5/9/10/20/40).
</p></dd>
</dl>
</dd>
<dt><code>xbee</code></dt>
<dd><p>Extended parameters:
</p><dl compact="compact">
<dt><code>&lsquo;<samp>xbeeresetpin=<var>1..7</var></samp>&rsquo;</code></dt>
<dd><p>Select the XBee pin <code>DIO&lt;1..7&gt;</code> that is connected to the MCU&rsquo;s
/RESET line. The programmer needs to know which DIO pin to use to
reset into the bootloader. The default (3) is the <code>DIO3</code> pin
(XBee pin 17), but some commercial products use a different XBee
pin.
</p>
<p>The remaining two necessary XBee-to-MCU connections are not selectable
- the XBee <code>DOUT</code> pin (pin 2) must be connected to the MCU&rsquo;s
RXD line, and the XBee <code>DIN</code> pin (pin 3) must be connected to
the MCU&rsquo;s TXD line.
</p></dd>
</dl>
</dd>
<dt><code>serialupdi</code></dt>
<dd><p>Extended parameters:
</p><dl compact="compact">
<dt><code>&lsquo;<samp>rtsdtr=low|high</samp>&rsquo;</code></dt>
<dd><p>Forces RTS/DTR lines to assume low or high state during the whole
programming session. Some programmers might use this signal to
indicate UPDI programming state, but this is strictly hardware
specific.
</p>
<p>When not provided, driver/OS default value will be used.
</p></dd>
</dl>
</dd>
</dl>
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<a name="Example-Command-Line-Invocations-1"></a>
<h2 class="section">2.3 Example Command Line Invocations</h2>
<p>Download the file <code>diag.hex</code> to the ATmega128 chip using the
STK500 programmer connected to the default serial port:
</p>
<div class="smallexample">
<table class="cartouche" border="1"><tr><td>
<pre class="smallexample">% avrdude -p m128 -c stk500 -e -U flash:w:diag.hex
avrdude: AVR device initialized and ready to accept instructions
Reading | ################################################## | 100% 0.03s
avrdude: Device signature = 0x1e9702
avrdude: erasing chip
avrdude: done.
avrdude: performing op: 1, flash, 0, diag.hex
avrdude: reading input file &quot;diag.hex&quot;
avrdude: input file diag.hex auto detected as Intel Hex
avrdude: writing flash (19278 bytes):
Writing | ################################################## | 100% 7.60s
avrdude: 19456 bytes of flash written
avrdude: verifying flash memory against diag.hex:
avrdude: load data flash data from input file diag.hex:
avrdude: input file diag.hex auto detected as Intel Hex
avrdude: input file diag.hex contains 19278 bytes
avrdude: reading on-chip flash data:
Reading | ################################################## | 100% 6.83s
avrdude: verifying ...
avrdude: 19278 bytes of flash verified
avrdude done. Thank you.
%
</pre></td></tr></table>
</div>
<p>Upload the flash memory from the ATmega128 connected to the STK500
programmer and save it in raw binary format in the file named
<code>c:/diag flash.bin</code>:
</p>
<div class="smallexample">
<table class="cartouche" border="1"><tr><td>
<pre class="smallexample">% avrdude -p m128 -c stk500 -U flash:r:&quot;c:/diag flash.bin&quot;:r
avrdude: AVR device initialized and ready to accept instructions
Reading | ################################################## | 100% 0.03s
avrdude: Device signature = 0x1e9702
avrdude: reading flash memory:
Reading | ################################################## | 100% 46.10s
avrdude: writing output file &quot;c:/diag flash.bin&quot;
avrdude done. Thank you.
%
</pre></td></tr></table>
</div>
<p>Using the default programmer, download the file <code>diag.hex</code> to
flash, <code>eeprom.hex</code> to EEPROM, and set the Extended, High, and Low
fuse bytes to 0xff, 0x89, and 0x2e respectively:
</p>
<div class="smallexample">
<table class="cartouche" border="1"><tr><td>
<pre class="smallexample">
% avrdude -p m128 -u -U flash:w:diag.hex \
&gt; -U eeprom:w:eeprom.hex \
&gt; -U efuse:w:0xff:m \
&gt; -U hfuse:w:0x89:m \
&gt; -U lfuse:w:0x2e:m
avrdude: AVR device initialized and ready to accept instructions
Reading | ################################################## | 100% 0.03s
avrdude: Device signature = 0x1e9702
avrdude: NOTE: FLASH memory has been specified, an erase cycle will be performed
To disable this feature, specify the -D option.
avrdude: erasing chip
avrdude: reading input file &quot;diag.hex&quot;
avrdude: input file diag.hex auto detected as Intel Hex
avrdude: writing flash (19278 bytes):
Writing | ################################################## | 100% 7.60s
avrdude: 19456 bytes of flash written
avrdude: verifying flash memory against diag.hex:
avrdude: load data flash data from input file diag.hex:
avrdude: input file diag.hex auto detected as Intel Hex
avrdude: input file diag.hex contains 19278 bytes
avrdude: reading on-chip flash data:
Reading | ################################################## | 100% 6.84s
avrdude: verifying ...
avrdude: 19278 bytes of flash verified
[ ... other memory status output skipped for brevity ... ]
avrdude done. Thank you.
%
</pre></td></tr></table>
</div>
<p>Connect to the JTAG ICE mkII which serial number ends up in 1C37 via
USB, and enter terminal mode:
</p>
<div class="smallexample">
<table class="cartouche" border="1"><tr><td>
<pre class="smallexample">
% avrdude -c jtag2 -p m649 -P usb:1c:37 -t
avrdude: AVR device initialized and ready to accept instructions
Reading | ################################################## | 100% 0.03s
avrdude: Device signature = 0x1e9603
[ ... terminal mode output skipped for brevity ... ]
avrdude done. Thank you.
</pre></td></tr></table>
</div>
<p>List the serial numbers of all JTAG ICEs attached to USB. This is
done by specifying an invalid serial number, and increasing the
verbosity level.
</p>
<div class="smallexample">
<table class="cartouche" border="1"><tr><td>
<pre class="smallexample">
% avrdude -c jtag2 -p m128 -P usb:xx -v
[...]
Using Port : usb:xxx
Using Programmer : jtag2
avrdude: usbdev_open(): Found JTAG ICE, serno: 00A000001C6B
avrdude: usbdev_open(): Found JTAG ICE, serno: 00A000001C3A
avrdude: usbdev_open(): Found JTAG ICE, serno: 00A000001C30
avrdude: usbdev_open(): did not find any (matching) USB device &quot;usb:xxx&quot;
</pre></td></tr></table>
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<a name="Terminal-Mode-Operation-1"></a>
<h1 class="chapter">3 Terminal Mode Operation</h1>
<p>AVRDUDE has an interactive mode called <var>terminal mode</var> that is
enabled by the &lsquo;<samp>-t</samp>&rsquo; option. This mode allows one to enter
interactive commands to display and modify the various device memories,
perform a chip erase, display the device signature bytes and part
parameters, and to send raw programming commands. Commands and
parameters may be abbreviated to their shortest unambiguous form.
Terminal mode also supports a command history so that previously entered
commands can be recalled and edited.
</p>
<table class="menu" border="0" cellspacing="0">
<tr><td align="left" valign="top"><a href="avrdude_7.html#Terminal-Mode-Commands">3.1 Terminal Mode Commands</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top"><a href="avrdude_8.html#Terminal-Mode-Examples">3.2 Terminal Mode Examples</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
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<a name="Terminal-Mode-Commands-1"></a>
<h2 class="section">3.1 Terminal Mode Commands</h2>
<p>The following commands are implemented:
</p>
<dl compact="compact">
<dt><code>dump <var>memtype</var> <var>addr</var> <var>nbytes</var></code></dt>
<dd><p>Read <var>nbytes</var> from the specified memory area, and display them in
the usual hexadecimal and ASCII form.
</p>
</dd>
<dt><code>dump</code></dt>
<dd><p>Continue dumping the memory contents for another <var>nbytes</var> where the
previous dump command left off.
</p>
</dd>
<dt><code>write <var>memtype</var> <var>addr</var> <var>byte1</var> &hellip; <var>byteN</var></code></dt>
<dd><p>Manually program the respective memory cells, starting at address addr,
using the values <var>byte1</var> through <var>byteN</var>. This feature is not
implemented for bank-addressed memories such as the flash memory of
ATMega devices.
</p>
</dd>
<dt><code>erase</code></dt>
<dd><p>Perform a chip erase.
</p>
</dd>
<dt><code>send <var>b1</var> <var>b2</var> <var>b3</var> <var>b4</var></code></dt>
<dd><p>Send raw instruction codes to the AVR device. If you need access to a
feature of an AVR part that is not directly supported by AVRDUDE, this
command allows you to use it, even though AVRDUDE does not implement the
command. When using direct SPI mode, up to 3 bytes
can be omitted.
</p>
</dd>
<dt><code>sig</code></dt>
<dd><p>Display the device signature bytes.
</p>
</dd>
<dt><code>spi</code></dt>
<dd><p>Enter direct SPI mode. The <em>pgmled</em> pin acts as slave select.
<em>Only supported on parallel bitbang programmers, and partially by USBtiny.</em>
Slave Select must be externally held low for direct SPI when
using USBtinyISP, and send must be a multiple of four bytes.
</p>
</dd>
<dt><code>part</code></dt>
<dd><p>Display the current part settings and parameters. Includes chip
specific information including all memory types supported by the
device, read/write timing, etc.
</p>
</dd>
<dt><code>pgm</code></dt>
<dd><p>Return to programming mode (from direct SPI mode).
</p>
</dd>
<dt><code>verbose [<var>level</var>]</code></dt>
<dd><p>Change (when <var>level</var> is provided), or display the verbosity
level.
The initial verbosity level is controlled by the number of <code>-v</code> options
given on the command line.
</p>
</dd>
<dt><code>?</code></dt>
<dt><code>help</code></dt>
<dd><p>Give a short on-line summary of the available commands.
</p>
</dd>
<dt><code>quit</code></dt>
<dd><p>Leave terminal mode and thus AVRDUDE.
</p>
</dd>
</dl>
<p>In addition, the following commands are supported on the STK500
and STK600 programmer:
</p>
<dl compact="compact">
<dt><code>vtarg <var>voltage</var></code></dt>
<dd><p>Set the target&rsquo;s supply voltage to <var>voltage</var> Volts.
</p>
</dd>
<dt><code>varef [<var>channel</var>] <var>voltage</var></code></dt>
<dd><p>Set the adjustable voltage source to <var>voltage</var> Volts.
This voltage is normally used to drive the target&rsquo;s
<em>Aref</em> input on the STK500 and STK600.
The STK600 offers two reference voltages, which can be
selected by the optional parameter <var>channel</var> (either
0 or 1).
</p>
</dd>
<dt><code>fosc <var>freq</var>[<code>M</code>|<code>k</code>]</code></dt>
<dd><p>Set the master oscillator to <var>freq</var> Hz.
An optional trailing letter <code>M</code>
multiplies by 1E6, a trailing letter <code>k</code> by 1E3.
</p>
</dd>
<dt><code>fosc off</code></dt>
<dd><p>Turn the master oscillator off.
</p>
</dd>
<dt><code>sck <var>period</var></code></dt>
<dd><p><em>STK500 and STK600 only:</em>
Set the SCK clock period to <var>period</var> microseconds.
</p>
<p><em>JTAG ICE only:</em>
Set the JTAG ICE bit clock period to <var>period</var> microseconds.
Note that unlike STK500 settings, this setting will be reverted to
its default value (approximately 1 microsecond) when the programming
software signs off from the JTAG ICE.
This parameter can also be used on the JTAG ICE mkII/3 to specify the
ISP clock period when operating the ICE in ISP mode.
</p>
</dd>
<dt><code>parms</code></dt>
<dd><p><em>STK500 and STK600 only:</em>
Display the current voltage and master oscillator parameters.
</p>
<p><em>JTAG ICE only:</em>
Display the current target supply voltage and JTAG bit clock rate/period.
</p>
</dd>
</dl>
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<a name="Terminal-Mode-Examples-1"></a>
<h2 class="section">3.2 Terminal Mode Examples</h2>
<p>Display part parameters, modify eeprom cells, perform a chip erase:
</p>
<div class="smallexample">
<table class="cartouche" border="1"><tr><td>
<pre class="smallexample">% avrdude -p m128 -c stk500 -t
avrdude: AVR device initialized and ready to accept instructions
avrdude: Device signature = 0x1e9702
avrdude: current erase-rewrite cycle count is 52 (if being tracked)
avrdude&gt; part
&gt;&gt;&gt; part
AVR Part : ATMEGA128
Chip Erase delay : 9000 us
PAGEL : PD7
BS2 : PA0
RESET disposition : dedicated
RETRY pulse : SCK
serial program mode : yes
parallel program mode : yes
Memory Detail :
Page Polled
Memory Type Paged Size Size #Pages MinW MaxW ReadBack
----------- ------ ------ ---- ------ ----- ----- ---------
eeprom no 4096 8 0 9000 9000 0xff 0xff
flash yes 131072 256 512 4500 9000 0xff 0x00
lfuse no 1 0 0 0 0 0x00 0x00
hfuse no 1 0 0 0 0 0x00 0x00
efuse no 1 0 0 0 0 0x00 0x00
lock no 1 0 0 0 0 0x00 0x00
calibration no 1 0 0 0 0 0x00 0x00
signature no 3 0 0 0 0 0x00 0x00
avrdude&gt; dump eeprom 0 16
&gt;&gt;&gt; dump eeprom 0 16
0000 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |................|
avrdude&gt; write eeprom 0 1 2 3 4
&gt;&gt;&gt; write eeprom 0 1 2 3 4
avrdude&gt; dump eeprom 0 16
&gt;&gt;&gt; dump eeprom 0 16
0000 01 02 03 04 ff ff ff ff ff ff ff ff ff ff ff ff |................|
avrdude&gt; erase
&gt;&gt;&gt; erase
avrdude: erasing chip
avrdude&gt; dump eeprom 0 16
&gt;&gt;&gt; dump eeprom 0 16
0000 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |................|
avrdude&gt;
</pre></td></tr></table>
</div>
<p>Program the fuse bits of an ATmega128 (disable M103 compatibility,
enable high speed external crystal, enable brown-out detection, slowly
rising power). Note since we are working with fuse bits the -u (unsafe)
option is specified, which allows you to modify the fuse bits. First
display the factory defaults, then reprogram:
</p>
<div class="smallexample">
<table class="cartouche" border="1"><tr><td>
<pre class="smallexample">% avrdude -p m128 -u -c stk500 -t
avrdude: AVR device initialized and ready to accept instructions
avrdude: Device signature = 0x1e9702
avrdude: current erase-rewrite cycle count is 52 (if being tracked)
avrdude&gt; d efuse
&gt;&gt;&gt; d efuse
0000 fd |. |
avrdude&gt; d hfuse
&gt;&gt;&gt; d hfuse
0000 99 |. |
avrdude&gt; d lfuse
&gt;&gt;&gt; d lfuse
0000 e1 |. |
avrdude&gt; w efuse 0 0xff
&gt;&gt;&gt; w efuse 0 0xff
avrdude&gt; w hfuse 0 0x89
&gt;&gt;&gt; w hfuse 0 0x89
avrdude&gt; w lfuse 0 0x2f
&gt;&gt;&gt; w lfuse 0 0x2f
avrdude&gt;
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<a name="Configuration-File-1"></a>
<h1 class="chapter">4 Configuration File</h1>
<p>AVRDUDE reads a configuration file upon startup which describes all of
the parts and programmers that it knows about. The advantage of this is
that if you have a chip that is not currently supported by AVRDUDE, you
can add it to the configuration file without waiting for a new release
of AVRDUDE. Likewise, if you have a parallel port programmer that is
not supported by AVRDUDE, chances are good that you can copy and
existing programmer definition, and with only a few changes, make your
programmer work with AVRDUDE.
</p>
<p>AVRDUDE first looks for a system wide configuration file in a platform
dependent location. On Unix, this is usually
<code>/usr/local/etc/avrdude.conf</code>, while on Windows it is usually in the
same location as the executable file. The name of this file can be
changed using the &lsquo;<samp>-C</samp>&rsquo; command line option. After the system wide
configuration file is parsed, AVRDUDE looks for a per-user configuration
file to augment or override the system wide defaults. On Unix, the
per-user file is <code>.avrduderc</code> within the user&rsquo;s home directory. On
Windows, this file is the <code>avrdude.rc</code> file located in the same
directory as the executable.
</p>
<table class="menu" border="0" cellspacing="0">
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<tr><td valign="middle" align="left">[<a href="avrdude.html#Introduction" title="Cover (top) of document">Top</a>]</td>
<td valign="middle" align="left">[<a href="#SEC_Contents" title="Table of contents">Contents</a>]</td>
<td valign="middle" align="left">[Index]</td>
<td valign="middle" align="left">[<a href="avrdude_abt.html#SEC_About" title="About (help)"> ? </a>]</td>
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<h1>Table of Contents</h1>
<div class="contents">
<ul class="no-bullet">
<li><a name="toc-Introduction-1" href="avrdude.html#Introduction">1 Introduction</a>
<ul class="no-bullet">
<li><a name="toc-History-and-Credits" href="avrdude_1.html#History">1.1 History and Credits</a></li>
</ul></li>
<li><a name="toc-Command-Line-Options-1" href="avrdude_2.html#Command-Line-Options">2 Command Line Options</a>
<ul class="no-bullet">
<li><a name="toc-Option-Descriptions-1" href="avrdude_3.html#Option-Descriptions">2.1 Option Descriptions</a></li>
<li><a name="toc-Programmers-accepting-extended-parameters-1" href="avrdude_4.html#Programmers-accepting-extended-parameters">2.2 Programmers accepting extended parameters</a></li>
<li><a name="toc-Example-Command-Line-Invocations-1" href="avrdude_5.html#Example-Command-Line-Invocations">2.3 Example Command Line Invocations</a></li>
</ul></li>
<li><a name="toc-Terminal-Mode-Operation-1" href="avrdude_6.html#Terminal-Mode-Operation">3 Terminal Mode Operation</a>
<ul class="no-bullet">
<li><a name="toc-Terminal-Mode-Commands-1" href="avrdude_7.html#Terminal-Mode-Commands">3.1 Terminal Mode Commands</a></li>
<li><a name="toc-Terminal-Mode-Examples-1" href="avrdude_8.html#Terminal-Mode-Examples">3.2 Terminal Mode Examples</a></li>
</ul></li>
<li><a name="toc-Configuration-File-1" href="avrdude_9.html#Configuration-File">4 Configuration File</a>
<ul class="no-bullet">
<li><a name="toc-AVRDUDE-Defaults-1" href="avrdude_10.html#AVRDUDE-Defaults">4.1 AVRDUDE Defaults</a></li>
<li><a name="toc-Programmer-Definitions-1" href="avrdude_11.html#Programmer-Definitions">4.2 Programmer Definitions</a></li>
<li><a name="toc-Part-Definitions-1" href="avrdude_12.html#Part-Definitions">4.3 Part Definitions</a>
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<li><a name="toc-Parent-Part-1" href="avrdude_12.html#Parent-Part">4.3.1 Parent Part</a></li>
<li><a name="toc-Instruction-Format-1" href="avrdude_12.html#Instruction-Format">4.3.2 Instruction Format</a></li>
</ul></li>
<li><a name="toc-Other-Notes-1" href="avrdude_13.html#Other-Notes">4.4 Other Notes</a></li>
</ul></li>
<li><a name="toc-Programmer-Specific-Information-1" href="avrdude_14.html#Programmer-Specific-Information">5 Programmer Specific Information</a>
<ul class="no-bullet">
<li><a name="toc-Atmel-STK600-1" href="avrdude_15.html#Atmel-STK600">5.1 Atmel STK600</a></li>
<li><a name="toc-Atmel-DFU-bootloader-using-FLIP-version-1-1" href="avrdude_16.html#Atmel-DFU-bootloader-using-FLIP-version-1">5.2 Atmel DFU bootloader using FLIP version 1</a></li>
<li><a name="toc-SerialUPDI-programmer-1" href="avrdude_17.html#SerialUPDI-programmer">5.3 SerialUPDI programmer</a></li>
</ul></li>
<li><a name="toc-Platform-Dependent-Information-1" href="avrdude_18.html#Platform-Dependent-Information">Appendix A Platform Dependent Information</a>
<ul class="no-bullet">
<li><a name="toc-Unix-1" href="avrdude_19.html#Unix">A.1 Unix</a>
<ul class="no-bullet">
<li><a name="toc-Unix-Installation-1" href="avrdude_19.html#Unix-Installation">A.1.1 Unix Installation</a>
<ul class="no-bullet">
<li><a name="toc-FreeBSD-Installation-1" href="avrdude_19.html#FreeBSD-Installation">A.1.1.1 FreeBSD Installation</a></li>
<li><a name="toc-Linux-Installation-1" href="avrdude_19.html#Linux-Installation">A.1.1.2 Linux Installation</a></li>
</ul></li>
<li><a name="toc-Unix-Configuration-Files-1" href="avrdude_19.html#Unix-Configuration-Files">A.1.2 Unix Configuration Files</a>
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<li><a name="toc-FreeBSD-Configuration-Files-1" href="avrdude_19.html#FreeBSD-Configuration-Files">A.1.2.1 FreeBSD Configuration Files</a></li>
<li><a name="toc-Linux-Configuration-Files-1" href="avrdude_19.html#Linux-Configuration-Files">A.1.2.2 Linux Configuration Files</a></li>
</ul></li>
<li><a name="toc-Unix-Port-Names-1" href="avrdude_19.html#Unix-Port-Names">A.1.3 Unix Port Names</a></li>
<li><a name="toc-Unix-Documentation-1" href="avrdude_19.html#Unix-Documentation">A.1.4 Unix Documentation</a></li>
</ul></li>
<li><a name="toc-Windows-1" href="avrdude_20.html#Windows">A.2 Windows</a>
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<li><a name="toc-Installation" href="avrdude_20.html#Windows-Installation">A.2.1 Installation</a></li>
<li><a name="toc-Configuration-Files" href="avrdude_20.html#Windows-Configuration-Files">A.2.2 Configuration Files</a>
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<li><a name="toc-Configuration-file-names-1" href="avrdude_20.html#Configuration-file-names">A.2.2.1 Configuration file names</a></li>
<li><a name="toc-How-AVRDUDE-finds-the-configuration-files_002e-1" href="avrdude_20.html#How-AVRDUDE-finds-the-configuration-files_002e">A.2.2.2 How AVRDUDE finds the configuration files.</a></li>
</ul></li>
<li><a name="toc-Port-Names" href="avrdude_20.html#Windows-Port-Names">A.2.3 Port Names</a>
<ul class="no-bullet">
<li><a name="toc-Serial-Ports-1" href="avrdude_20.html#Serial-Ports">A.2.3.1 Serial Ports</a></li>
<li><a name="toc-Parallel-Ports-1" href="avrdude_20.html#Parallel-Ports">A.2.3.2 Parallel Ports</a></li>
</ul></li>
<li><a name="toc-Documentation-1" href="avrdude_20.html#Documentation">A.2.4 Documentation</a></li>
</ul>
</li>
</ul></li>
<li><a name="toc-Troubleshooting-1" href="avrdude_21.html#Troubleshooting">Appendix B Troubleshooting</a></li>
</ul>
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