Guete Morge! On Sun, 17 Jan 2016 07:24:32 +0100 Magnus Danielson <mag...@rubidium.dyndns.org> wrote:
> >> Have you tried swapping "role" of the SR620? > > > > Yes, I've done that. Both SR620's lose some samples, but only one of > > them loses significantly more than the other. > > OK. So, the dropping follows the counter rather than the role? Yes. > >> Have you tried grabbing data in the Linux environment? > > > > Nope. I couldn't find any tool for linux that worked. > > I also tried to run Timelabs in Wine, but that segfaults on start. > > Do you have any recommendation for a tool? > > You don't need anything fancy. A small program to talk to the serial > port should do it. If you could use talk only, I would just pipe it to a > file and compare them later. Hmm.. good idea. > I really wish TimeLab existed directly on Linux. Last time I tried > running it under Wine, it worked but didn't draw things properly for me. It's like Lady Heather, it needs to be ported to Qt ;-) > >> Have you tried feeding timelab two streams generated on the linux side? > > > > What do you mean by that? > > If you generate data that looks like real data and then mock the serial > ports to make TimeLab beleive it is real counters, you can now see if > the dataflow themselves causes issues over the Linux/Windows border and > into TimeLab. Ah.. unfortunately this would need a bit more fiddling and tool building than I have time for. I'm only here for another week and have to spend most of the time learning how to do ASICs. > > Due to the problems I had with the SR620s and what the group at the TU > > Vienna > > experienced (I am currently using their equipment), we started to ponder > > whether we should build our own, multi-input TICs. Especially considering > > that we are about to design some ASICs which we expect to be synced up > > better than 100ps (somewhere around 20-50ps, limited by the delay > > uncertainty > > of the cables). > > Well, building your own TIC would naturally be interesting, but adds > another aspect in that you will have to verifiy them extensively. It > will be another factor of uncertainty to consider. Yes. It wouldn't be something that is done fast. I expect it to take at least half a year with a couple of highly motivated people as a team. A year would be probably more realistic. And after that, comes a whole lot of verification and qualification. But that could probably be done together with PTB or CERN. Attila Kinali -- It is upon moral qualities that a society is ultimately founded. All the prosperity and technological sophistication in the world is of no use without that foundation. -- Miss Matheson, The Diamond Age, Neil Stephenson _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.