Products > Test Equipment

DsLogic Plus - Trigger on high signal on any of 4 channels

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LarryMartin:

--- Quote from: eTobey on December 05, 2024, 06:18:35 pm ---And how much effort would it be to change the program, instead of checking 2, to checking at least 4 channels for this case? Probably would take 10 Minutes at most.

--- End quote ---

You're in luck, the source is available at https://github.com/DreamSourceLab/DSView.  ;)

NE666:

--- Quote from: thm_w on December 05, 2024, 11:31:00 pm ---ok but its not $500, its $400, we don't include taxes in price comparisons.

--- End quote ---

Feel free to use your own basis of comparison in your own posts but, as a private individual purchasing for hobby use, that extra 100 USD comes out of my bank account and isn't then available for anything else, so yes, it is entirely relevant to my assessment of value for money.

And yes, Sigrok and DSview software have decent protocol decoding capabilities. But their LA triggering isn't nearly as good as those of the 'boat anchors', and the former doesn't compensate for the latter if you need those capabilities. This probably represents the shift in architecture and tool chains over the years, with greater use of serial buses and protocols, and less assembly level coding and debug being done.

ebastler:

--- Quote from: thm_w on December 05, 2024, 11:31:00 pm ---OP didn't spend 400, the dslogic plus can be had for as little as $85.

--- End quote ---

Oh, I actually got that mixed up with LarryMartin's U3Pro16. So maybe the U3Pro16 (which has a proper FPGA on board to my knowledge) supports all the multi-channel triggers, while the Plus model has limitations which are not reflected in the GUI?

For the Plus model, triggering might actually happen on the PC side -- with the data always being streamed, but only stored after a trigger event has been detected? Just guessing here... Edit: Scratch that, according to available teardown photos the Plus model is also based on a Spartan-6, like the U3Pro variants. That also makes it unlikely that there is a fundamental difference in the trigger implementation.


--- Quote from: NE666 on December 06, 2024, 09:49:41 am ---Sigrok and DSview software have decent protocol decoding capabilities. But their LA triggering isn't nearly as good as those of the 'boat anchors', and the former doesn't compensate for the latter if you need those capabilities.

--- End quote ---

Since I have been pondering the U3Pro16 for a while, I am curious about its capabilities and about the limitations you perceive. From the screenshots which were shared here and from the (mediocre) manual it seems that one can define pretty complex patterns that need to occur on the signal channels in parallel, and then up to 16 stages of these which need to occur sequentially, to define a trigger condition. Alternatively to the parallel patterns, decoded serial protocol events can be defined at each stage.

That sounds pretty decent. What are the key gaps you see in the triggering functionality?

2N3055:

--- Quote from: NE666 on December 06, 2024, 09:49:41 am ---
--- Quote from: thm_w on December 05, 2024, 11:31:00 pm ---ok but its not $500, its $400, we don't include taxes in price comparisons.

--- End quote ---

Feel free to use your own basis of comparison in your own posts but, as a private individual purchasing for hobby use, that extra 100 USD comes out of my bank account and isn't then available for anything else, so yes, it is entirely relevant to my assessment of value for money.

And yes, Sigrok and DSview software have decent protocol decoding capabilities. But their LA triggering isn't nearly as good as those of the 'boat anchors', and the former doesn't compensate for the latter if you need those capabilities. This probably represents the shift in architecture and tool chains over the years, with greater use of serial buses and protocols, and less assembly level coding and debug being done.

--- End quote ---

But problem is that all the asked for triggering can be accomplished. And more.
Nobody understands what the complaint is all about.
Take a look at manual attached in post above. It is all there and triggering is quite sophisticated.
Manual reading and understanding of how something works is needed before you can use it.

eTobey:

--- Quote from: LarryMartin on December 05, 2024, 11:43:53 pm ---You're in luck, the source is available at https://github.com/DreamSourceLab/DSView.  ;)

--- End quote ---

Nope, i checked that already... That repo is NOT up to date... (yes that would be a complain too).

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