===== AVRdude & Arduino ===== AVRDUDE is a command line tool to program AVR chips. It runs in the background of the Arduino IDE. When burning the bootloader on an Arduino clone it is somtimes necessary to erase a chip or set the fuse bits manualy - that's when the AVRdude comes handy. Dokumentations:\\ [[http://www.nongnu.org/avrdude/user-manual/avrdude.html]]\\ Command description:\\ [[http://www.nongnu.org/avrdude/user-manual/avrdude_4.html]]\\ ---- **avrdude -C /hardware/tools/avrdude.conf -v -p -c -P -b 115200 -U flash:w::i** |-C |specify location of configuration file| |-v|verbose output-v, in case you want to debug something| |-p |specify AVR devicee could be atmega328p or m8u, ...| |-c |specify programmer type could be stk500v1 or stk500v2, ...| |-P |specify connection port could be /dev/ttyACMx (Linux $ ls /dev), or COMx (Win)| |-b |override RS-232 baud rate| |-U :r w v:[:format]|memory operation specification, the is either flash or eeprom; r,w,v means r (read) w (write) or v (verify)| ||is the hex filename and location| The fuse settings are in /Arduino/hardware/arduino/avr/board.txt\\ **ATmega32U4**\\ To erase the chip: sudo avrdude -p m32u4 -c stk500v2 -P /dev/ttyACM0 -e -F **ATmega328p**\\ To erase the chip: sudo avrdude -p m328p -c stk500v2 -P /dev/ttyACM0 -e -F **ATmega168**\\ set the fuse bits: avrdude -c stk500v2 -p m168 -P /dev/ttyACM0 -B 6 -v -U lock:w:0x3f:m -U lfuse:w:0xff:m -U hfuse:w:0xdf:m -U efuse:w:0x0:m **Atmega8u2**\\ It is the chip for serial to USB on the Arduino Uno and on the Usb2Serial board. >On the Arduino Usb2Serial Light Board the ISP header is marked wrong, pin 1 is the nearest one to the Atmega8u2 chip. Burning Serial to USB:\\ The hex file is in the arduino folder: cd /usr/share/arduino/hardware/arduino/firmwares/atmegaxxu2/arduino-usbserial/ sudo avrdude -p m8u2 -c stk500v2 -P /dev/ttyACM0 -b115200 -U flash:w:Arduino-usbserial-uno.hex:i Burning Serial to USB on Sparkfun Atmega8u2 Breakout Board: sudo avrdude -p m8u2 -c stk500v2 -P /dev/ttyACM0 -U flash:w:Arduino-usbserial-uno.hex:i Burning Serial to Midi:\\ The hex file is here: [[http://hunt.net.nz/users/darran/weblog/52882/Arduino_UNO_MIDI_USB_version_02.html]] sudo avrdude -p m8u2 -c stk500v2 -P /dev/ttyACM0 -b115200 -U flash:w:MIDI_Firmware/Arduino-usbmidi-0.2.hex:i ---- ==== License ==== This manual was made by **Wolfgang Spahn** 2011-20.\\ It is licensed under a [[http://creativecommons.org/licenses/by-nc-sa/4.0/"|Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License]].

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