Extracting data from Atmel AVR8/16 .elf project

Before you start:

Step by step manual

STEP-01

Run command prompt

STEP-02

USE “dir” and “cd” commands to get into folder, where the project is saved dir – shows list of files in current folder cd <Folders_name> - will enter the desired folder cd .. - will step out from the current folder

STEP-03

Using the command “avr-readelf -l <project_name.elf>” you can display the program headers and section's header stored in the project file. In other words project contents, that you can extract

STEP-04

use command “avr-objcopy -O binary -j .text <project_name.elf> flash.bin” It will create flash.bin file and extract the flash contents into it.

STEP-05

use command “avr-objcopy -O binary -j .eeprom <project_name.elf> eeprom.bin” Creates eeprom.bin file and extract an eeprom contents into it.

STEP-06

use command “avr-readelf -x .fuse <project_name.elf>” it will display the fuse bits setting.

STEP-07

use command “avr-readelf -x .lock <project_name.elf>” it will display the lock bits setting.

STEP-08

Erase the whole buffer.

STEP-09

Load EEPROM data

STEP-10

Load Flash Data.

STEP-11

Set the correct fuse bit settings.

STEP-12

Set the correct Lock settings.

Presov, January 2012
Update: April 2015
Author: Jan Drab, Elnec