Problem flashing ARTIQ-6: No device found / unable to open ftdi device

melanieAQ

This is my first time flashing our Sinara system. I've encountered system problems and my intent is to retreat to a pre-build stable version, and verify that everything is working.

I performed these steps, I also added my user to the plugdev group:
sudo cp /nix/store/a9z2g2g70h3ci32cqf6ymnypc29yz6al-openocd-bscanspi/share/openocd/contrib/60-openocd.rules /etc/udev/rules.d sudo udevadm trigger nix-channel --add https://nixbld.m-labs.hk/channel/custom/artiq/full/artiq-full nix-channel --update nix-env -iA artiq-full.artiq-env nix-shell my-artiq-env.nix

A copy-paste of the Linux (Ubuntu 20.04) console is here.

My artiq-env file is here

I do have the USB cable connected between the Linux box and the Sinara front panel

How can I solve this problem? Thanks for your support.

sb10q

melanieAQ I do have the USB cable connected between the Linux box and the Sinara front panel

Is the cable OK? Does the Kasli show up in lsusb?

melanieAQ

lsusb reports this, what should I expect? Do I need to do something before running this (other than making sure the cable is connected)? I think the cable is OK. I can try a different one.
lsusb
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 413c:2105 Dell Computer Corp. Model L100 Keyboard
Bus 001 Device 004: ID 8087:0026 Intel Corp.
Bus 001 Device 002: ID 0461:4d22 Primax Electronics, Ltd USB Optical Mouse
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

melanieAQ

The beta manual suggests using flterm when flashing, I tried these but unsuccessful:
serial.serialutil.SerialException: [Errno 2] could not open port /dev/ttyUSB1: [Errno 2] No such file or directory: '/dev/ttyUSB1' sinara@system76-pc:~/_melanie/sandbox/artiq$ !!:p flterm /dev/ttyUSB1 sinara@system76-pc:~/_melanie/sandbox/artiq$ ls /dev | grep -y usb

So perhaps it's the serial connection.

melanieAQ

Is it OK to leave the USB cable running from host to Sinara box at all times, or should I remove the cable after flashing? For example, does the presence of the cable interfere with Sinara power cycle/booting?

sb10q

melanieAQ For example, does the presence of the cable interfere with Sinara power cycle/booting?

No. You can leave the cable connected.

From what you are describing, USB is not working at all e.g. your cable is faulty or if you are using a VM the port is not redirected. There is no point trying any of the ARTIQ/flterm commands until a new entry shows up in lsusb.

melanieAQ

OK I have fiddled with the cable and I am able to flash ARTIQ-6 using the pre-built package from the nix channel. The led experiment is working and I can see it blinking. Thanks for the advice!

Now I would like to build the same version of ARTIQ-6 from source and flash it as well. Will you please tell me how to checkout this ARTIQ-6 version: ARTIQ v6.7648.f49f1fcb

sb10q

git checkout f49f1fcb