Products > Test Equipment

Hantek 6022BE 20MHz USB DSO

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horo:

--- Quote from: Cliff Matthews on November 18, 2019, 05:10:22 pm ---... I opened the source zip and copied it from docs. Hopefully you do not object to me posting them here for the benefit of others?

--- End quote ---
No problem, Cliff - but if you want to follow the development more closely, you will find much more information on github.
About the scope software:
https://github.com/OpenHantek/OpenHantek6022
https://github.com/OpenHantek/OpenHantek6022/tree/master/docs
Some more HW info:
https://github.com/Ho-Ro/Hantek6022API

Martin

Tj80:
Hi Martin,

Many thanks for your fantastic work on this! :) I've just got hold of a 6022be and have begun playing with your software - so much better than Hantek's effort.

I have just one problem - the Y scale grid dots are not visible for some reason! I can see the small lines on the Y axis but not the main grid (which threw me for a while as I was misreading the voltage scale!). I've tried this on two different Windows 10 machines, and with 3 different monitors - they're definitely missing not just hard to see. Changing the grid colour in settings has no effect. I do have to run with the --useGLES flag, otherwise I get an OpenGL compilation error - I wonder if this is causing a problem rendering the grid for some reason?

Appreciate any thoughts you or or anyone else may have!

BR,
Tim

horo:
Hi Tim,

it's (kind of) solved with build b200, see this screen shot of a Linux machine (please ignore the missing top icons, that issue is not related but I have no better pic): https://user-images.githubusercontent.com/10123911/70485729-a654ce80-1b54-11ea-80de-1c8b6754bd56.png

But I detected that on a Windows machine the dots (also on a screenshot) are very hard to see while on Linux clearly visible on the same screenshot, https://user-images.githubusercontent.com/52634569/70429012-58838c00-1aaa-11ea-8cea-bf35f070ebf8.png

Get the latest build: https://ci.appveyor.com/api/buildjobs/0ulm3x45c667nv0o/artifacts/build_x64%2Fopenhantek%2FOpenHantek-Win-x64-Release-b200.zip
Get earlier builds:
https://ci.appveyor.com/project/Ho-Ro/openhantek6022/history

Martin

horo:
Version 3.0.1 is out:

--- Code: ---3.0.1
2019-12-13
More robust USB handling for all OSs
Improve manipulation and export of frozen or single traces
Export XY display
Automatic icon selection for light/dark themes
Eye candy
Automatic start after FW upload
--- End code ---



German, French, Italian and Portuguese localisation available, German is complete, the other languages are WIP (volunteers wanted):

LINUX5045:
This is an amazing piece of work! Thank you everyone involved.

I was going to wait till the new dummy/ test mode enhancement was implemented so I could try out the software but the price of the Hantek is so low I purchased one anyway. Arrived today:



I've got several other USB scopes but this is my favourite Linux solution so far.

Before this scope I'd used a Picoscope but their Linux software is a CPU monster on our system with 390%+ usage. Seems one or two others have reported the same, with high fan /heat, an unusable system and eventual thermal shutdown of the machine.

No problems with OpenHantek in this respect at all. Typically ~50% CPU usage; Highest CPU usage noted so far is ~97% of one core with only slightly elevated fan speed.  8)


If needed, the cpulimit program on Linux can help contain a program's CPU usage. For example:

1. install cpulimit:

--- Quote ---sudo apt-get install cpulimit
--- End quote ---
2. start the program:

--- Quote ---OpenHantek
--- End quote ---
3. In a new terminal window run top to view OpenHantek cpu usage:

--- Quote ---top -c -p $(pgrep -d',' -f OpenHantek)
--- End quote ---
4. In another window run cpulimit:

--- Quote ---cpulimit -e OpenHantek -l 70
--- End quote ---
With -l being the % limit required. You might need to run this one with sudo depending on your permissions.


Note that it results in a stuttering of the waveform, a sort of a rapid 'pause/play' effect as cpulimit cyclically freezes then releases the process under the PID to reduce CPU usage.

Also, I would like to be able to change the waveform line thickness like in other software. Is this a possibility? Thanks again!

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