avrdude
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avrdude
Read flash and eeprom contents
Using the usbasp ISP
avrdude -c usbasp -p m328p -P USB -b 57600 -U flash:r:/tmp/flash.txt:i avrdude -c usbasp -p m328p -P USB -b 57600 -U eeprom:r:/tmp/eeprom.txt:i
Write hex file
The hexfile can be generated with the Arduion IDE with the command Export compiled Binary CTRL+ALT+S wich can be found under the Sketch menu item
Write a hex file to an ATmega 328p
avrdude -c usbasp -p m328p -P USB -b 57600 -U flash:w:Blink.ino.standard.hex
Errors form AVRdude
Can not connect
When you get
avrdude: auto set sck period (because given equals null) avrdude: warning: cannot set sck period. please check for usbasp firmware update. avrdude: error: program enable: target doesn't answer. 0 avrdude: initialization failed, rc=-1 Double check connections and try again, or use -F to override this check.
do
Disconnect the power from the Arduino / AT328p setup, wait a few seconds, connect the power and try again
Errors reading fuses
When you get
avrdude: Warning: cannot query manufacturer for device: error sending control message: Operation not permitted avrdude: Warning: cannot query product for device: error sending control message: Operation not permitted avrdude: error: could not find USB device with viBODLEVEL 2:0 Fusesd=0x16c0 pid=0x5dc vendor='www.fischl.de' product='USBasp'
Do as root
groupadd usbasp usermod -G usbasp -a user vi /etc/udev/rules.d/41-usbasp.rules (and add the following three lines to the 41-usbasp.rules file) ## USBAsp AVR VUSB Device ATTRS{idVendor}=="16c0", ATTRS{idProduct}=="05dc", MODE="0664", GROUP="usbasp" Make sure the empy line is there Save the file and close vi with **:x** Reboot
Useful links
AVR Tutorial
SPM Store Program Memory
How to change fuse bits of AVR Atmega328p 8bit microcontroller
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avrdude.txt · Last modified: 27-11-2021 16:01 by wim