Rigol MSO5000 Bug Bonanza

Not good enough for a numbered video.
40 minutes of Dave rambling about some bugs in the new Rigol MSO5000 scope in the Logic Analsyer, serial decoder, and possibly the Auto mode trigger system.
If you don't like this style of rambling video, don't watch.
NOTE: This is potentially a pre-production model and does not have the latest firmware.

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[zenseidk]

Love this scope. Fantastic value for money. Bugs are fixed.

[mikeselectricstuff]

Data:<char> in ASCII mode - WHY?

[waew]

Looks like AUTO mode is masking a true trigger event while it's busy processing the 20M points that were auto-triggered. I seem to recall you saw a similar issue on another vendors scope a few years ago (AUTO trigger interfering with catching an infrequent signal).

[finkelmana]

Use Monster audio cables for your probes. That solves all the problems.

[mikeselectricstuff]

Holy crap they are wasting half the space on the decode with that D: nonsense

[mikeselectricstuff]

MSO glitches are often down to probe grounding, in particular not having every probe ground connected - you can usually tweak threshold to get clean signals.

[cubeistgames]

When you were zooming in around 28:00 you were sometimes looking at the falling edge, which didn’t have the glitch. The glitch was only on the rising edge.

[Tool-Meister]

Have you revisited these bugs with the latest firmware revisions? It would be interesting to see if Rigol listened. I just purchased a MSO-5074 off RIGOL’s “Clearance Center”. I got a great price with the “-bund” trigger, decoding, and AWG options included. Still finding my way around all the features, but it seems to be solid. Through the magic of the EEVBLOG, all the options now show “Forever” and the bandwidth shows “350 MHz”. I’m happy so far...

[gblargg]

Paying to install memory via a USB drive. Who said you can't make those satirical "download memory for your computer" sites come true?

[SteveBlue]

@32:21 with the logic probes, the Rigol shows 8GSa/s, but the keysight is showing 1.5GSa/s. The Rigol is detecting an edge ring below logic threshold due to the higher sample rate, the keysight is missing it. The keysight is also trigger off the rise and and the ring randomly when you do multiple runs. An analogue channel would probably show the ringing. I could be wrong, but that would be my best guess and thing I'd check (though I guess you have sent it on now).
The spurious edge in the middle of the other one went away with the logic level going back to 1.4V rather than 0.9V, I'd still bet higher sample rate and maybe noise across channels?
The zooming does look.... buggered, I kept watching the time bar at the top and it was confusing the hell out of me as it seemed like it was zooming into the time point at the centre yet the signals were moving.

[amciaapple]

It looks like Rigol has written this firmware in Java and cross-compiled it to VHDL...and the dim high-gloss display is a screen from a second-hand market.

[whatevernamegoeshere]

22:47 When you move it around you also see it triggering on falling edge when it's set to rising lol

[marcdavis]

Auto mode shouldn't be used for serial decode.You tend to get the data slapped all over the screen regardless of the trigger point. Serial is bursty, normal trigger mode is perfect for that.

[martinda]

PS Dave had to say your channel just gets better and better. You have become a phenomenon.(The first internet engineering overlord). I'm very pleased I watched you over the years. Remarkable really, and it can be seen that it was a lot of hard work. Respect.

[eddnshoulders]

Thanks for the video, along with the other review video. I would be really useful if you could get hold of one of these again and give an update now after 19months and several firmware updates released. I'm guessing that like the 1054z, this could well become the best bang-for-buck hobbiest scope once the firmware has matured.

[omegacsblog]

My MSO3000 does a lot of the same stuff, and has for quite a while with no fixes to the firmware. For real work I no longer will touch a Rigol scope. I even communicated with them about the triggering problem, and got a useless response. In my experience it simply won't show a serial decode on screen unless the trigger point is well to the right of the first gridline, and if you zoom or scroll the stopped data after that point the serial display is likely to simply vanish and never come back, which makes inspecting a rare event nearly impossible. The horrible display of the serial information has caused me a fair bit of trouble. It's also just riddled with inconsistencies: the list of source channels for any given function can take 2 or 3 different forms, some of them have analog channels at the top, some at the bottom, etc etc. Given that the new MSO5000 seems to exhibit the *exact* same bugs, I can easily decide that I will never buy another "high end" Rigol scope...

[paulround]

The logic analyser functionality on this scope is totally broken, I bought it with the LA probes and ended up giving up on it after weeks of frustration. Total waste of time.

[ws_stelzi]

Hey Dave are you paid to alpha test this scope? This scope seems to be not tested by any competent engineer or at least quickly looked at one if it is behaving as it should.

[BradsGuitarGarage]

Anyone have any idea if they've sorted out any of this crap as of the current Rigol MSO-5074 model?

[chris]

When you went into the trigger menu I was expecting to see it set to TWIL. Trigger Whenever I Like