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Hacking the Siglent SDM3055 Bench DMM
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rwgast_lowlevellogicdesin:
I have an sdm3045x and am pretty satisfied with it for the most part but, the resistance measurement 2 and 4 wire only measure to 3 digits beyond the decimal in its lowest 600 range, how hard would it be to hack a fourth digit? I'd be willing to upgrade my voltage reference to the max one used in the 3055 if need be!
Muessigb:

--- Quote from: alexvg on November 19, 2019, 09:29:57 am ---Some news :
I'm working on an interface using a HTML/CSS rendering for a more scalable and flexible possibilities/features.
It takes a very long time because the power of the main CPU is very limited: I need to do a high level of optimizations and remove some CSS features (who need too much process time/power).

--- End quote ---
Why put a full HTML/CSS rendering engine on an embedded device. That's really inefficient. I don't like when people do it on Desktop, but it's just awful on embedded.
You can always use SDL or QT embedded to do the GUI.

I've done my own fair share of aftermarket firmware and SDL usually works quite well.
Elasia:

--- Quote from: pipe2null on April 24, 2020, 07:57:17 pm ---"Me Too":  Yes, great work alexvg!  I hope things calm down in the world soon so we can all get back to kewl projects like this one.


--- Quote from: alexvg on February 29, 2020, 05:40:50 pm ---7.5 digits : https://www.eevblog.com/forum/testgear/hacking-the-siglent-sdm3055/msg2612406/#msg2612406

--- End quote ---

I have an SDM3065X-SC and want to try out UI and 7.5 digit FW mods if/when it's possible to do so.  I considered attempting the 7.5 digit hack per the instructions, but since I have a different model, I thought I'd ask first to avoid messing things up.  Is it reasonably "safe" to try out the 7.5 digit mod on a 3065?

--- End quote ---

It's a different main board, i wouldnt normally say this but you got the top of the line model, i'd leave it be since its the flagship less you are out of warranty or the like

You can cross application files across same mainboard revisions safely, beyond that you are on your own, its the reason you can turn the new SSA 3000X Plus into a 3.2Ghz SVA model, same main board, just a different application file
pipe2null:
True on the hardware.  Beyond that it depends on how they architected the firmware/software if the UI code is well separated from the underneath bits.  Most of the firmware hacks I've seen posted are reasonably safe and reversible to try but only for a very specific model.  After I posted I finally saw a note from OP of the "thou shalt not" try on other models...   :palm:  Was hoping it might be possible to safely kill normal UI process and try out OP's much better UI.  Odds of that actually working are low, but thought I'd ask.  I'm not up to speed enough to hack around with it myself yet, need to get through a few more learning curves with JTAG and the like.

(*Sarcastic*) And thanks a lot for bringing up the SSA3000X+ "upgrade".  It took months to convince myself to wait until next year before digging into the RF side of things and getting related "field upgradable" SA/VNA toys...  -ER-, I mean essential tools.   >:D
...  SVA?  Sounds like I'm behind on reading.  But I really, really shouldn't catch up.  Bad idea.  Bad, bad idea.  I don't go to TEA meetings.  I don't have a problem.
alexvg:
Hello,
Just a little message to thank you for your support.
I have been sick with Covid-19 since June. Despite all the precautions taken (mask, distance, hand washing ...), that was not enough.
It's very difficult everyday with a lot of symptoms. The healthcare team is great but clueless.
Please protect each other, take care of yourself.
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