Linux and UNIX Man Pages

Linux & Unix Commands - Search Man Pages

dfu-programmer(1) [debian man page]


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 <> SEE ALSO 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)
Man Page

Featured Tech Videos