DFU-PROGRAMMER(1)														 DFU-PROGRAMMER(1)

NAME

       dfu-programmer - USB firmware upgrading for Atmel microcontrollers

SYNOPSIS

       dfu-programmer target command [options] [parameters]

DESCRIPTION

       dfu-programmer  is  a  Linux  command line Device Firmware Upgrade (DFU) based programmer for the flash memory on Atmel AVR, AVR32 and 8051
       based microcontrollers which ship with a USB boot loader.  It supports In System Programming (ISP) for developers and  potentially  product
       updates	in  the  field.   Those  boot  loaders	are patterned after the standard USB DFU 1.0 class specification, but depend on extensions
       defined by Atmel to the extent that standard DFU drivers will not work.

       To use it, first connect the device to be programmed and ensure that it comes up in DFU mode.  The microcontrollers come up in that mode as
       shipped	by  Atmel;  or	they  may  reenter  that  mode	after a special hardware reset.  Then invoke this program to issue one or more DFU
       commands.  You will normally need to start by issuing the "erase" command; the default security policies prevent  extracting  firmware,	to
       prevent reverse engineering of what is usually proprietary code.

SUPPORTED MICROCONTROLLERS

       These chip names are used as the command line "target" parameter.

       8051 based controllers:
	      at89c51snd1c, at89c51snd2c, at89c5130, at89c5131, and at89c5132.

       AVR based controllers:
	      at90usb1287,  at90usb1286,  at90usb647,  at90usb646,  at90usb162,  at90usb82,  atmega32u6,  atmega32u2,  atmega32u4,  atmega8u2  and
	      atmega16u4.

       AVR32 based controllers:
	      at32uc3a0128, at32uc3a1128, at32uc3a0256, at32uc3a1256, at32uc3a0512,  at32uc3a1512,  at32uc3a0512es,  at32uc3a1512es,  at32uc3a364,
	      at32uc3a364s,  at32uc3a3128,  at32uc3a3128s,  at32uc3a3256,  at32uc3a3256s,  at32uc3b064,  at32uc3b164,  at32uc3b0128, at32uc3b1128,
	      at32uc3b0256, at32uc3b1256, at32uc3b0256es, at32uc3b1256es, at32uc3b1512,  at32uc3b0512,	at32uc3c064,  at32uc3c0128,  at32uc3c0256,
	      at32uc3c0512, at32uc3c164, at32uc3c1128, at32uc3c1256, at32uc3c1512, at32uc3c264, at32uc3c2128, at32uc3c2256 and at32uc3c2512.

USAGE

       There  are  no  mechanisms for selecting which single device should be programmed, or to implement gang programming.  Accordingly, you will
       usually avoid connecting more than one device of a given family (AVR, AVR32 or 8051) at a time.

       All of these commands support the "global options".  Unless you override it, commands which write to the  microcontroller  will	perform  a
       validation step that rereads the data which was written, compares it to the expected result, and reports any errors.

       configure register [--suppress-validation] data
	      Bootloaders for 8051 based controllers support writing certain configuration bytes.

       dump
	      Reads all the available flash memory, and writes it as binary data to stdout.

       dump-eeprom
	      Reads all the available eeprom memory, and writes it as binary data to stdout.

       dump-user
	      Reads the user space flash on the AVR32 chips and writes it as binary data to stdout.

       erase [--suppress-validation]
	      Erases all the flash memory.  This is required before the bootloader will perform other commands.

       flash [--suppress-validation] [--suppress-bootloader-mem] file or STDIN
	      Writes   flash   memory.	  The	input  file  (or  stdin)  must	use  the  "ihex"  file	format	convention  for  a  memory  image.
	      --suppress-bootloader-mem ignores any data written to the bootloader  memory  space  when  flashing  the	device.   This	option	is
	      particularly useful for the AVR32 chips trampoline code.

       flash-user [--suppress-validation] file or STDIN
	      Writes  to  user	space flash on the AVR32 chips.  This block of flash is out of the normal range of flash blocks and is designed to
	      contain configuration parameters.  The input file (or stdin) mus use the "ihex" file format convention for a memory image.

       eeprom-flash [--suppress-validation] file or STDIN
	      Writes to eeprom memory.	The input file (or stdin) must use the "ihex" file format convention for a memory image.

       get register
	      Displays various product identifier bytes.

       reset
	      Resets microcontroller using watchdog timer

       start
	      Starts the application firmware by having the microcontroller jump to address zero.

       version
	      This prints a string identifying the version of this utility.

   Global Options
       --quiet - minimizes the output

       --debug level - enables verbose output at the specified level

   Configure Registers
       The standard bootloader for 8051 based chips supports writing data bytes which are not relevant for the AVR based chips.

       BSB - boot status byte
       SBV - software boot vector
       SSB - software security byte
       EB  - extra byte
       HSB - hardware security byte

   Get Register
       bootloader-version - currently flashed bootloader version
       ID1 - device boot identification 1
       ID2 - device boot identification 2
       manufacturer - the hardware manufacturer code
       family - the product family code
       product-name - the product name
       product-revision - the product revision
       HSB - same as the configure_register version
       BSB - same as the configure_register version
       SBV - same as the configure_register version
       SSB - same as the configure_register version
       EB  - same as the configure_register version

BUGS

       None known.

KNOWN ISSUES

       The at90usb series chips do not make available any read/write protect flags so the dump or flash command may fail with a less than  helpful
       error message.

       To remove any write or read protection from any chips, a full chip erasure is required.

       You may need to be a member of the uucp group in order to have access to the device without needing to be root.

AUTHOR

       Weston Schmidt <weston_schmidt@alumni.purdue.edu>

SEE ALSO

       http://dfu-programmer.sourceforge.net http://atmel.com/dyn/resources/prod_documents/doc7745.pdf

COPYRIGHT

       Copyright (C) 2005-2008 Weston Schmidt

       This  program  is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by
       the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

       This program is distributed in the hope that it	will  be  useful,  but	WITHOUT  ANY  WARRANTY;  without  even	the  implied  warranty	of
       MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more details.

       You  should  have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation,
       Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA

DFU-PROGRAMMER							 December 10, 2008						 DFU-PROGRAMMER(1)