Em Sex, 2011-03-18 às 15:45 -0400, Paul Fox escreveu: > hi -- > > i'm in the market for a scope of some sort, and for me a USB-based > device with linux support would make the most sense. a straight > analyzer wouldn't be as useful. > > the MSO-19 looks like a nice device, and i'm pleased to see it's > getting some sigrok support. > > questions: > - is anything impeding further progress? last commit message implied > that capture works, but not triggers, and other things to make > the captures useful. what kind of help is needed?
Yes, mso-19 development is currently halted because core sigrok doesn't support analog probes. Its all hardcoded (probes, triggers, filters, etc..) for 1 bit per probe. I failed at writing the core changes to include analog support to core sigrok in a way that Biot would accept, and the result is that I'm no longer working on it. But you shouldn't decide against MSO-19 just based on this.. Link Instruments contacted me recently and they want to support mso-19 open source development. You can expect linux software for mso-19, probably not sigrok, and not in the near future, but it will be fully supported by Open Source Software at some point. > - does the stock s/w run under wine? under virtualbox? i could more > easily justify buying something whose linux support is tenuous if > i could make immediate use of it in any case. No, it doesn't run under WINE. And it doesn't run under MONO either. I couldn't run it under Virtualbox, but i haven't really tried much, it should be possible. > - if you have an MSO-19, are there major failings that Link Instruments > might not be mentioning on their website? :-) i guess the single > channel might be the big downside, but i think i can live with that, > most of the time. MSO-19 has 1k samples buffer. It's definitely the biggest downside, this is generally ok for an oscilloscope, but its too small for a logic analyzer. Also, the measured voltages from the oscilloscope aren't very accurate at higher sampling rates. For the same source, at 200Mhz it was giving me values 10% higher than at 100Mhz or less. -- Daniel Ribeiro
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