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Author: Equizer

Hantek 2C42 random pulses in roll mode

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 Author| Post time 2019-11-10 04:00:11 | Show all posts
Software version 2019103001 nothing has changed, problem is still present!
I waited way more than a several days just to get nothing!

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Post time 2019-11-10 23:34:19 | Show all posts
Edited by OASJ2YSeeEhBQo1 at 2019-11-11 21:44
Equizer replied at 2019-11-10 04:00
Software version 2019103001 nothing has changed, problem is still present!
I waited way more than a  ...

Now I'm curious, what are you measuring that you need so badly to use an oscilloscope with the inputs coupled to ground and set in roll mode?

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 Author| Post time 2019-11-11 23:50:53 | Show all posts
It's not this specific mode I really need to use, it's just very clearly shows the problem that scope has. I use the scope mostly in single trigger mode, so I want it to trigger only on actual signal, not on some software errors. In V02 i can be sure that if I select single trigger mode, DC or AC coupling, and physically connect the probe to ground (or some line in low state) scope will never trigger. On V04 if I do that scope will trigger randomly on nothing and miss the signal.

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Post time 2019-11-13 09:06:44 | Show all posts
Please give me a video to study.

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 Author| Post time 2019-11-15 02:08:39 | Show all posts
Random pulses in roll mode when coupling is set to GND
https://filetransfer.io/data-package/waEo4Ycg?do=download

Random triggering when when coupling is set to GND
https://filetransfer.io/data-package/0NOc6xqx?do=download

Issues happen only on FPGA V04, everything is fine on V02
Upgrading/downgrading versions of STM firmware makes no difference.

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 Author| Post time 2019-11-27 02:13:51 | Show all posts
Firmware 2019110801 problem is still there!
It's definitely an FPGA issue, I already sent you a video of my issues, can I at least get some feedback from actual engineers?

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Post time 2019-11-27 15:09:09 | Show all posts
Yes, engineers are already working on this problem. We can get the result this week.

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 Author| Post time 2019-11-27 19:39:08 | Show all posts
Thank you for your reply!
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