 Wed Apr 7 08:26:12 2021, Stefan Ritt, Unexpected noise in muxout: t_samp related?
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Dear Sean,
noise in transparent mode comes from some coupling to your system clock. But 3.5 mV RMS seems rather hight to me. You should get it to below
1 mV if the DRS4 input is clean (try to short it). |
Fri Apr 9 20:22:13 2021, Sean Quinn, Unexpected noise in muxout: t_samp related? 
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Hi Stefan,
Thanks much for the quick reply. Ok, yes, things do seem ok after the offset calibration. I am running into some other issues I could use your |
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Fri Apr 9 20:55:28 2021, Stefan Ritt, Unexpected noise in muxout: t_samp related?
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If you do the cell calibration correctly, your noise should be ~0.4 mV. You seem to be 2-3x larger. The periodic negative spikes come if you dont'
sample at the right time. Adjust t_samp until they are gone.
Stefan |
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Fri Apr 9 21:56:54 2021, Sean Quinn, Unexpected noise in muxout: t_samp related?
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Yes, there is some systematic board noise on this prototype, unfortunately
Ok, then it seems the other post I made might still belong in this thread after all. |
 Mon Mar 23 15:03:28 2020, Ajay Krishnamurthy, USB trigger issue
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Hello,
I had forgotten to disable the turn off the power to the USB drive on Windows and DRS4 stopped triggering. Now, we are all on quarantine and
I am unable to reset the board to normal function. Are there any commands to reset the board remotely. I tried all of the default Windows based solutions |
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Tue Sep 10 10:31:30 2013, Akira Okumura, USB connection stops
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Hello the DRS4 team,
I and some of my colleagues are using DRS4 evaluation boards (ver. 3) for the R&D of the Cherenkov Telescope Array project. During
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Wed Sep 11 02:41:28 2013, Andrey Kuznetsov, USB connection stops
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Hi,
although I don't have a chance to test your code, it looks very similar to what I am using.
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Wed Sep 25 14:42:00 2013, Akira Okumura, USB connection stops
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Hello Andrey,
Thank you for your advise. But we never terminated the program before closing and deleting the DRS object. What we did was just executing the program multiple |
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Wed Jan 15 15:48:55 2014, Stefan Ritt, USB connection stops
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Hi,
finally I found some time to look into this problem, sorry for the late delay.
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Tue Oct 7 14:09:02 2014, Stephane Debieux, USB Microcontroller firmware
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Hi,
I'm trying to recompile the USB microcontroller firmware starting from the drs_eval.c file but I'm not able to get a .iic file close to the one
provided with the eval board. It seems to me that this drs_eval.iic file does not match the drs_eval.c and drs_eval.hex files or that I'm doing something |
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Mon Oct 13 16:46:56 2014, Stefan Ritt, USB Microcontroller firmware
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Stephane Debieux wrote:
Hi, |
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Mon Oct 13 17:08:40 2014, Stephane Debieux, USB Microcontroller firmware
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Stefan Ritt wrote:
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Mon Oct 13 17:14:58 2014, Stefan Ritt, USB Microcontroller firmware
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Stephane Debieux wrote:
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Tue Oct 14 16:21:07 2014, Stephane Debieux, USB Microcontroller firmware
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Stefan Ritt wrote:
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Tue Oct 14 16:29:12 2014, Stefan Ritt, USB Microcontroller firmware
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Stephane Debieux wrote:
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Tue Oct 14 16:34:45 2014, Stephane Debieux, USB Microcontroller firmware
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Stefan Ritt wrote:
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Tue Oct 14 16:38:14 2014, Stefan Ritt, USB Microcontroller firmware
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Stephane Debieux wrote:
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Tue Oct 14 16:51:37 2014, Stephane Debieux, USB Microcontroller firmware
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Stefan Ritt wrote:
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Thu May 21 07:38:05 2020, Keita Mizukoshi, Type check at DOFrame.h in official software
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Hi,
I've failured to compile official software. The cause is the following line. |
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Fri May 22 13:24:51 2020, Stefan Ritt, Type check at DOFrame.h in official software
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The software is a bit outdated, I will soon make a new release.
In meantime, you can replace that like with
bool GetRefclk(int board) { return m_refClk[board]; } |