 Tue Sep 22 17:45:26 2020, Elmer Grundeman, External triggering
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Dear all,
I had a question about timing jitter and external triggering.
I trigger the board externally with a 3V pulse from a DG645 delay generator and as a test I use the gated charge function to integrate another |
 Wed Oct 7 11:17:52 2020, Elmer Grundeman, External triggering
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I will try that, thanks!
Stefan
Ritt wrote:
The trigger is there only to trigger the chip, but cannot be used as |
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Tue May 27 13:46:18 2014, Dominik Neise, Spikes in DRS4 data on custom baord.
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We see quite some spikes in our DRS4 sampled data in FACT. We see different types of spikes:
single cell spikes, usually showing a large amplitude of 200mV
double cell spikes, usually only in the order of 20mV.
Even triple and quadro cell spikes are rarely seen.
The double cell spikes often occur as symmetrical double cell spikes mirrored |
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Fri Mar 11 19:50:18 2016, Dominik Neise,
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Hello Stefan,
I just stumbled again over a phrase in the DRS4 datasheet I never really understood, but didn't find the time to ask.
On page 8 it says: "An internal circuit ensures that the write signal is always 16 cells wide." |
Wed Jun 1 22:29:01 2016, Dominik Neise, problems when stop cell >= 767 ?? 
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Hello Stefan,
some colleages told me a story, I was neither able to confirm nor find anything in the datsheet about. According to them:
For some internal reason of the DRS4, if the “stop capacitor” of the DRS4 is >= 767, the true stop channel is one |
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Mon Feb 29 12:58:17 2016, Dmitry Philippov, baseline shift
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Hello! My name is Dmitry. I am from SiPM Lab is NRNU MEPhI (Russia, Moscow). We bought DRS4 evaluation board V5 with firmware 21305. We use 5.0.4 build
21911 2015-11-23 software version (and before that we used 5.0.3 build 21508, 2014-10-15) with Windows 7 32bit.
We observe some strange behaviour. When we save waveforms (in xml or binary data) we see that some of them have the baseline shifted of about |
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Thu Feb 28 10:47:14 2013, Dmitry Hits, clock and trigger outs
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Hi,
I am considering using the DRS4 evaluation board as an ADC card for the wire chamber in the physics lab (VP) experiment at ETH. However, the wire
chamber has 8 outputs, so I would need to have two of such boards. Is it possible to synchronise them, online or offline? From the website, it looks
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Mon Apr 8 18:11:02 2013, Dmitry Hits, binary to root
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Hi,
Does anyone has a program that converts a binary file from drsosc output to a ROOT tree format? |
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Tue Jul 9 11:40:00 2013, Dmitry Hits, cannot save in binary format
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Hi,
I would like to save the waveform in a binary format. When I click Save then change format from xml to dat in the menu. I still get xml format
but with dat extension. |
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Tue Jul 9 14:00:49 2013, Dmitry Hits, cannot save in binary format
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Stefan Ritt wrote:
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Wed Nov 6 11:53:28 2013, Dmitry Hits, flickering screen for drsosc
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Hi,
I have install drs software on ASUS EeeBox with Ubuntu 12.04 LTS. When I try to use ./drsosc the oscilloscope window flickers. Can you suggest |
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Mon Nov 18 11:20:15 2013, Dmitry Hits, flickering screen for drsosc
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Stefan Ritt wrote:
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Mon Nov 18 15:49:01 2013, Dmitry Hits, synchronisation of readouts of two boards for offline analysis
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Dear Stefan,
I am trying to synchronise the readout of two test boards, one is the DRS4 test board, the other is PSI46 test board (used for the readout of CMS
pixel chip) for the offline analysis. I think that the most secure way to accomplish this is to pass a trigger number from one test board to the other. |
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Tue Nov 26 15:36:39 2013, Dmitry Hits, reducing sampling speed
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Dear Stefan
Is there an easy way to reduce sampling speed below 0.7 GSPS? I would like to record traces up to 5 usec long.
Thank you |
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Fri Dec 13 10:37:18 2013, Dmitry Hits, input protection in DRS4 evaluation board
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Dear Stefan
Last month I was using a DRS4 evaluation board to digitise the signal from the charged particles in piM1 beam line at PSI. The beam in piM1 is
a mixture of pions with a small percentage of protons. Pions are close to minimum ionising and were producing the signals on the order of 250 mV (Landau |
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Mon Dec 16 11:09:25 2013, Dmitry Hits, synchronisation of readouts of two boards for offline analysis
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Stefan Ritt wrote:
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Fri Sep 12 11:52:21 2014, Dmitry Hits, synchronizing two DRS4 evaluation boards readout with one computer
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Hi everyone,
Has anyone tried to synchronize 2 (two) DRS4 evaluation boards readout by the same computer? I have read about some attempts on this board in the
past, but I do not know if they have succeeded. If yes, could you share your experience and/or software. |
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Fri Sep 12 13:37:42 2014, Dmitry Hits, synchronizing two DRS4 evaluation boards readout with one computer
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Stefan Ritt wrote:
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Fri Sep 12 14:57:22 2014, Dmitry Hits, compilation error for v5.0.2
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Hi,
I am getting the following compilation error when trying to compile version 5.0.2 software:
src/DOFrame.cpp:617:14: error: invalid conversion from ‘char*’ to ‘wxChar {aka wchar_t}’ [-fpermissive]
I |
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Fri Sep 12 16:38:24 2014, Dmitry Hits, compilation error for v5.0.2
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Stefan Ritt wrote:
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