Novatech409b control breaks in ARTIQ 7 release

[connorgoham]

Bug Report

One-Line Summary

Novatech409b control breaks in stable release of ARTIQ 7.

Issue Details

Pinging the novatech409b fails when using artiq_session or when starting the controller manager manually and calling ping via sipyco_rcptool.

Everything seems to work normally when using ARTIQ v7.8050.8599be5.beta. I have not tracked down for which commit the problem starts with.

Steps to Reproduce

1. running aqctl_novatech409b --device hwgrep://SER=AL02C9M5 -p 3255 for my particular novatech
2. then running sipyco_rpctool ::1 3255 call ping returns False
3. Rolling back ARTIQ in the nix flake to inputs.artiq.url = "git+https://github.com/m-labs/artiq?ref=master&rev=8599be55505c7d91a4ce183d1bc8053effcd3c72"; and repeating the above steps, pinging the device returns True

Expected Behavior

Pinging the device in the stable release of ARTIQ returns True, as it does for ARTIQ v7.8050.8599be5.beta.

Your System (omit irrelevant parts)

• Operating System: Ubuntu 20.04.4 LTS
• ARTIQ version: ARTIQ v7.8114.30cb821
• Hardware involved: Novatech409b

[sbourdeauducq]

I have not tracked down for which commit the problem starts with.

I don't have the hardware and I think many people also stopped using this device. So if you don't debug this, nobody will.

[sbourdeauducq]

Moved to m-labs/novatech409b#2