EEVblog #44 - Part 2 - Logic Analyzer Tutorial

Part two of Dave's Logic Analyzer tutorial / monologue

[WooShell]

Most cheap USB LAs may be a toy, but they're great for non- or semi-professional work. I've been using the 20$ 16-channel Saleae clones for reverse engineering tons of great junkyard stuff, and they've served that purpose really well. And I'm not even going to mention all the Arduino tinkering and the recent upsurge in hobbyist project platforms. Really shows that this video is a few years old already - perhaps EEVblog will come around to revisiting that topic in that new light.

[rij]

I'm just beginning to understand electronics and your tutorials have been absolutely amazing!  Thanks Dave!

[HeilmanHackatronics]

Thanks for the information on logic analyzers Dave.
I will keep what you said in mind when I purchase one (which I know will happen, given time)

[toadiri]

i think u have a cricket in your room in the last part of your video there Dave.

[EEVblog]

@mctylr Well said. @averagemale2000 There is no point talking semantics, people search for the word "tutorial" much more often than "lecture".

[jackevans]

For years I used 74HCT86 EXOR gates to multiply the number of digital channels on my 2 channel scope.
As long as I could recognize the signal on the scopes display, it's inverted or non inverted image was not a problem.

[Hulahoopish]

Thank you! I studied mechanical engineering and now I'm working in controls design for some reason, and I am in way over my head.

[MrGeekGamer]

I just acquired a Sony/Tektronix 338, which appears to date from 1984. I guess that works a whole lot differently to the more modern USB ones.

[OQP]

One thing that Dave doesn't mention here is that a compression sampling doesn't just record the state change data. It has to store somekind of a timestamp of when that state change occur. Depending on the formating and depth of this timestamp, this will also define compression sampling as an advantage or a disadvantage.

[Shinika]

Excellent video, valuable informations! Thank you for this!
I would have looove a video to show in real time the difference between each one (cheap USB, good USB, Oscilloscope) in real situation !

[alectrossaurogamer]

Great video. Is it possible to decode a rf signal with a logic analyzer, I mean to know 0 and 1 from the rf signal?

[flesvik]

You skipped an important part of what many hobbyists are using logic analyzers for. And that is for revers engineering stuff by sniffing the serial commands between different IC's. And for this purpose a cheap USB logic analyzer is usually more than god enough.

[serapas]

Can you use oscilloscope to check logic analyzer if it modifies signals too much?

[BuFuO]

lol, there's a faulty fan in your video, I thought my pc has some dying fan

[LateralThinkerer]

This is more of a rant against logic analyzer use.  Perhaps a good thing to discourage those prone to needlessly getting more toys, but more of a user tutorial would be nice.

[krisiluttinen]

Would you consider the Owon MSO8102T 100MHz Mixed Logic Analyzer - Oscilloscope a good scope & logic analyzer to buy?

[jcbritobr]

I use a very cheap one and I can do lots of work. Works for me for iot. May be 15 years ago that was very hard to got a cheap one that works .

[SWECKHOFF]

Hey why can't I get this channel on cable. This is real TV if your asking me. Thanks for sharing.

[Tigrou]

I expected Dave to show the analyser he hold in his hands actually measuring something (showing the software etc)..

[Firstner]

audio is somewhat messed up, hope this is not from new camera :(