I have an Arduino R1 board (the very first one) and I managed to solder the resistor into Arduino's Atmega8u2 (I went to a specialist in order to do that). Then I reset atmega8u2 and by wiring the pins mentioned in: https://www.arduino.cc/en/Hacking/DFUProgramming8U2
I can confirm it via this message over my GNU/Linux machine by running dmesg:
[ 1544.679504] usb 1-6: new full-speed USB device number 42 using xhci_hcd
[ 1544.808341] usb 1-6: New USB device found, idVendor=03eb, idProduct=2ff7
[ 1544.808350] usb 1-6: New USB device strings: Mfr=0, Product=1, SerialNumber=0
[ 1544.808356] usb 1-6: Product: Arduino Uno DFU
I also to confirm that I run lsusb and I got the following result:
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 002: ID 248a:8367
Bus 001 Device 058: ID 03eb:2ff7 Atmel Corp.
Bus 001 Device 003: ID 058f:6362 Alcor Micro Corp. Flash Card Reader/Writer
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Further indicating to me that arduino is in DFU mode over my ubuntu 16.04 machine. Also I further verify via dfu-util -l command:
Copyright 2005-2009 Weston Schmidt, Harald Welte and OpenMoko Inc.
Copyright 2010-2014 Tormod Volden and Stefan Schmidt
This program is Free Software and has ABSOLUTELY NO WARRANTY
Please report bugs to [email protected]
Found DFU: [03eb:2ff7] ver=0000, devnum=63, cfg=1, intf=0, alt=0, name="UNKNOWN", serial="UNKNOWN"
The I try to run:
sudo dfu-programmer atmega8u2 erase
But for some reason I get the following error:
dfu-programmer: no device present.
Do you know why I get this error and how I can fix it?
Edit 1
I installed the latest version of dfu-programmer and compiled from source via https://sourceforge.net/projects/dfu-programmer/files/dfu-programmer/0.7.2/ but still I get the error. I also tried to compile it with libusb-1.0.0
Edit2
I also tried this version with libusb-1.0.0 but still the same error occurs.
Edit 3
As many suggest I tried to do multiple times but still I get this error.
Edit 4
I also used dfu-util and I try to insert the data into the atmega8u2 via:
sudo dfu-util -d 03eb:2ff7 -D ./Arduino-usbserial-uno.hex -R
But I get the error:
dfu-util 0.8
Copyright 2005-2009 Weston Schmidt, Harald Welte and OpenMoko Inc.
Copyright 2010-2014 Tormod Volden and Stefan Schmidt
This program is Free Software and has ABSOLUTELY NO WARRANTY
Please report bugs to [email protected]
dfu-util: Invalid DFU suffix signature
dfu-util: A valid DFU suffix will be required in a future dfu-util release!!!
Opening DFU capable USB device...
ID 03eb:2ff7
Run-time device DFU version 0100
Claiming USB DFU Interface...
Setting Alternate Setting #0 ...
Determining device status: state = dfuIDLE, status = 0
dfuIDLE, continuing
DFU mode device DFU version 0100
Device returned transfer size 3072
Copying data from PC to DFU device
Download [ ] 0% 0 bytesdfu-util: Error during download
dfu-util: can't detach
Resetting USB to switch back to runtime mode
