iceprog .. Can't find iCE FTDI USB device (Linux permission issue??)

Question

I recently installed yosys on Ubuntu 15.1 (32-bit Arm-7 machine) and I compiled my first small project for a Lattice ice40hx8k dev board. However, the programming stage fails with:

iceprog counter.bin
Can't find iCE FTDI USB device (vedor_id 0x0403, device_id 0x6010).
ABORT.

It appears to be a permission problem, because if I run the programming stage as root, it works fine.

I created this udef file as part of the installation process:

cat /etc/udev/rules.d/53-lattice-ftdi.rules 
ACTION=="add", ATTR{idVendor}

and also this file:

cat /etc/udev/rules.d/50-lattice-ftdi.rules 
# FTDI USB-Serial
SUBSYSTEM=="usb", ATTRS{idVendor}=="0403", ATTRS{idProduct}=="6010", GROUP="users", MODE="0666"

Can someone help me fix this non-root user programming permission problem?

Thanks :)

score 1 · Answer 1 · answered Apr 16 '16 at 12:55

Your /etc/udev/rules.d/53-lattice-ftdi.rules file seems to be truncated for some reason. The contents of this file should be:

ACTION=="add", ATTR{idVendor}=="0403", ATTR{idProduct}=="6010", MODE:="666"

After fixing that file, and disconnecting and reconnecting the device, you should be able to program the FPGA as normal user without sudo.

iceprog .. Can't find iCE FTDI USB device (Linux permission issue??)

1 Answers1