Yes, I've used sigrok and sat on their IRC channel for quite a while. I've used the gpib analyser and extended a DMM driver to cover the hp34401A. The logic analyser client is probably the best application and is comparable with Saleae's own client. The streaming cli clients are also good, but I think the scope client is behind Zonenberg's glscopeclient.
Sigrok is generally pretty good but is suffering developer shortage at present. The code quality is very good so this doesn't create a bug fixing issue but it does mean some recent feature additions haven't made it to the mainstream. If you (or anyone) has a taste for code reviewing I believe you'd be very welcome to help. I've also seen a recent patch to make it easier to use out-of-tree drivers for this very reason. I don't know much about that but it's an op[tion if you want to use the rasbperry pico as an acquisition engine. Open source and cross-platform credentials are excellent : in fact this causes a slight problem, as the Cypress FX3 which would otherwise be a good candidate as an acquisition engine can only be shipped with closed-source proprietary blobs, which stops it being used by sigrok. Any errors in the above are my own.. On Tue, Mar 14, 2023 at 2:39 PM Paul Koning via cctalk < cctalk@classiccmp.org> wrote: > > > > On Mar 14, 2023, at 1:38 AM, Steve Lewis via cctalk < > cctalk@classiccmp.org> wrote: > > > > ... > > Anyway, as an option slightly cheaper than the Saleae, I'm trying the > > 32-channel version of the DreamSourceLab U3Pro32. It's not horrible, > I've > > 24 pins hooked up so far. I debated on if 2x16's would be better. > > Amazon is good about returns, but this little DSL probe is good enough, > > I'll be keeping it. > > > > DreamSourceLab DSLogic U3Pro32 USB-Based Logic Analyzer with 1GHz > Sampling > > Rate, 2Gbits Memory, USB 3.0 Interface, 32 Channels > > Thanks everyone. Some reactions to what I heard: > > The U3Pro32 happens to be what I was looking at when I spotted the link to > sigrok.org. (Does anyone here have experience with that software?) > Among other things, it has a long list of supported devices, a lot of logic > analyzers of various specs, many that look like the sort of low cost > choices I was looking for. I saw DreamSourceLab, Hantek, and a bunch of > others offering 32 bit wide analyzers. > > On HP: yes, perhaps. I used one of those back at DEC, in the mid 1980s. > Nice machine, but my suspicion is that I'd run into the small memory > problem again that plagues me with the Philips/Fluke analyzer I use right > now. > > I can see lots of 16 channel options including mixed oscilloscopes. That > doesn't work for what I need, because I have (a) a control interface (EPP > mode parallel port, so that's about 12-14 wires right there) plus the > resulting internal signals I want to see, plus a serial data link going the > other way. 32 channels is what I have right now and that's comfortable; > 16 would mean a lot of fiddling around to keep switching which subset I can > see. Also, I have a Tek DAS602 so a new scope isn't all that appealing, > especially the lower cost ones (much less bandwidth, though admittedly more > memory) -- and while Rigol is less expensive than Tek it still has a fairly > substantial price tag. > > I noticed the sigrok.org devices list mentions one that is open source > hardware, that sounds a bit like what Sytse was talking about. > > paul > > > >
