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Mat mat at spoked.ca-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 > No idea, I have only used sam7util (from our git repository) with > the posix mode and /dev/ttyACM0..as device. So the device is really > in the SAM-BA state? Are you sure /dev/ttyACM0 is really coming > from the SIMtrace? Yes, according to Harald, if the device identifies as Atmel Corp. at91sam SAMBA bootloader when issuing lsusb, this confirms it is in SAM-BA state. I quickly tried the dfu-util, and it did not recognize any device. I identified the hanging point to be at the very beginning of samba_init(void) in samba.ca. It stopped at the first if, never being able to read a response from the device. The great news is, I finally flashed it! The second workstation I was working from was Ubuntu 10.10. This time, I tried on another Ubuntu 10.04 workstation, which is in a fairly fresh install state. I I installed dependencies to build the firmware: The arm-elf-toolchain from bsprak PPA, and most importantly (my guess is, this changed something), libusb-dev and NOT libusb-1.0.0-dev. This is might seem strange, but the installed packages are libusb-0.1-4 libusb-1.0.0 and libusb-dev. Maybe this is a meta package and I'm wrong... After I ran strace on sam7 utility and it went much further, finally ending with something about USBDEVFS ressource busy. Simply rmmod cdc_acm and try again, et voila! Flashed! Device now boots with bright red LED and identifies as VOTI. Clearly, this all had to do with the USB interface being picky about something. Maybe someone more knowledgeable can explain. Thanks for all you help, Mat -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.18 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iF4EAREIAAYFAk8naE0ACgkQsluIOvRklphMpQD/VmYICIdITFbmDkjLV7ubHEqH ongjJ4B288t1JzwPfZwA/RME0zt2Tr0tHxUflNjk7DsM3rpxfDTk7USbdlmozxG9 =PcxW -----END PGP SIGNATURE-----