01:03 <dingwat> azonenberg: ok, thanks for the direction there, will try it out. I would certainly like to generalize it further in the future, e.g. sweeping a supply voltage and plotting frequency measurements as a function of voltage, or sweeping a load current and plotting voltage ripple measurements. It would definitely motivate me to add support for the various meters/supplies/loads I have access to

01:17 <dingwat> why do I still try to build on Windows

01:33 <_whitenotifier-8> [scopehal] rfdonnelly commented on issue #996: LeCroy WaveSurfer 3054z - Crash on acquisition - https://github.com/ngscopeclient/scopehal/issues/996#issuecomment-3157126662

01:34 <_whitenotifier-8> [scopehal] rfdonnelly edited a comment on issue #996: LeCroy WaveSurfer 3054z - Crash on acquisition - https://github.com/ngscopeclient/scopehal/issues/996#issuecomment-3157126662

02:02 <dingwat> azonenberg: forgive me, this feels like a phenomenally dumb question, but if I hit "Restart" on the ScalarStairstep filter, I should see the "data" pin start stepping, right?

02:10 <azonenberg> dingwat: you need to have the filter graph running, hit the trigger button?

02:10 <azonenberg> if you hit stop it freezes everything including any waveform generation filters

02:11 <azonenberg> (the docs for these features have definitely not caught up with capabilities yet)

05:25 <ablu> azonenberg: Thanks! Will check it out.

05:53 <azonenberg> ablu: the important bit is you need to bump the version number on the waveform object

05:53 <azonenberg> so filters know that the input has changed and it'll refresh properly as new dat acomes in

05:53 <azonenberg> essentially you just add to the existing waveform object in AcquireData instead of overwriting it

05:54 <azonenberg> and i think it might require some magic for history to work right but i would have to check the code to remember the specifics

06:00 <ablu> azonenberg: Yeah it looks straightforward enough. I assumed I would have to keep adding things in "Acquire". But it looks like it Acquires in small blocks and then does the append in "PopPendingWaveform".

06:02 <azonenberg> ah i remember... yeah the idea is to maximize parallelism

08:30 <_whitenotifier-8> [scopehal-apps] Ablu opened issue #878: SEGV on close with demo oscilloscope + socketcan scope - https://github.com/ngscopeclient/scopehal-apps/issues/878

08:54 <_whitenotifier-8> [scopehal] azonenberg pushed 1 commit to master [+0/-0/±1] https://github.com/ngscopeclient/scopehal/compare/b880eeb6b4fb...b83f92549486

08:54 <_whitenotifier-8> [scopehal] azonenberg b83f925 - Updated to latest logtools

08:55 <_whitenotifier-8> [scopehal-apps] azonenberg pushed 1 commit to master [+0/-0/±3] https://github.com/ngscopeclient/scopehal-apps/compare/b16786acfb66...37cb3aa16910

08:55 <_whitenotifier-8> [scopehal-apps] azonenberg 37cb3aa - LogViewer: added filter rules and severity adjustment. See #875.

09:13 <_whitenotifier-8> [scopehal-apps] azonenberg pushed 1 commit to master [+0/-0/±1] https://github.com/ngscopeclient/scopehal-apps/compare/37cb3aa16910...ab7b1e8488e3

09:13 <_whitenotifier-8> [scopehal-apps] azonenberg ab7b1e8 - Fixed use of Text instead of TextUnformatted in LogViewerDialog

15:06 <dingwat> azonenberg: that was it, but I am still a little confused. https://i.imgur.com/S2sww2A.png

15:07 <dingwat> I see a pulse when the stairstep changes, and I can delay that pulse, but regardless of whether I gate the XY sweep or not, I don't get any plot on the XY sweep output

16:23 <dingwat> ugh. This Prologix clone is causing me endless problems. Anyone got a recommendation for the cheapest IEEE4888 to USB adapter I can buy that works?

16:26 <dingwat> $40 NI GPIB-USB-HS clone from China? Or $50 GPIB-USB-HS clone from US? Or $120 Agilent 82357B clone from China?