 Wed Sep 27 16:11:03 2017, Yoni Sher, Event acquisition pace for irregular timing
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Hi,
I'm running a LIDAR application that requires that every outgoing pulse be captured. My current setup firess sets of 20-50 pulses at
1 ms intervals, about 10 times a second, but only 10-20 pulses a second are captured. |
 Wed Dec 20 15:30:38 2017, Yoni Sher, cascading -- DRS4 Osci.cpp & DRS.cpp
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Hi,
I'm trying to do the same thing (get 1 channel with 8192 bins), but I'm having some trouble with it. When I call SetChannelConfig(0,
8, 1) as suggeted, I get output that looks like noise on all readouts. Could you please explain what is supposed to happen in this case? |
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Wed Dec 20 16:30:45 2017, Yoni Sher, cascading -- DRS4 Osci.cpp & DRS.cpp
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Hi,
The board is modified (and checks out with the DRSScope program). Could you please point me to the drs_exam_2048.cpp file? I can't seem to
fine the most up-to-date git repository.... |
Thu Jun 28 19:55:45 2018, Woon-Seng Choong, Negative Bin Width 
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I am using a DRS4 Evaluation Board v5 and running the drsosc.exe version 5.06 on a Window 7 machine. I have performed the voltage and timing calibration.
With test pulses on channel 1 and 2, I collected binary data file with all 4 channels active sampling at 5GSPS.
Attached is a distribution of the bin_width vs. cell # for all the 4 channels. Note that there are few cells with bin_width < 10 ps. |
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Mon Jul 16 19:39:35 2018, Woon-Seng Choong, Effect of interpolation on timing
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Using a test pulse split into two channels of the DRS4 Evaluation Board v5, I looked at the time resolution using a leading edge threshold.
The voltage and timing calibration was performed. One method (1) is to linearly interpolate between two points of the raw waveform that
is above and below the threshold (this is exactly the algorithm given in read_binary.c in the drs4 source distribution); and another (2) is to |
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Fri Jul 20 00:44:13 2018, Woon-Seng Choong, Effect of interpolation on timing
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Just a follow-up update.
It turns out that I was using a cubic spline interpolation with smoothing. If I required the cubic spline to go through the sampled points, then
I obtained similar time resolution as the simple linear interpolation. |
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Wed Mar 6 10:09:01 2019, Willy Chang, drscl "no board found" in some Win7 or Win8.X PCs
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Hi all,
When connecting the board and running the Zadig program, some Windows PCs may return "driver installation failed." I coudn't
find the solution from their download website. So I started the drscl first. Apparently it shows: Successfully scanned, but |
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Tue Nov 3 22:37:56 2015, Will Flanagan, Latest macro for DRS4 V5
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Hi DRS4 Experts,
I have an extremely naive question: Is there any official macro to unpack the DRS4 binary files? All I am looking to do is to plot a few of my
waveforms and manipulate them in root. I am using OSX 10.10 and ROOT 5.34. |
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Tue Nov 3 23:15:38 2015, Will Flanagan, Latest macro for DRS4 V5
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I should of course mention that I looked through the DRS4 website and didn't see anything obvious: https://www.psi.ch/drs/evaluation-board
Thanks,
Will |
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Thu Nov 5 00:18:42 2015, Will Flanagan, Latest macro for DRS4 V5
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Hi Stefan,
This is absolutely perfect.
Thanks, |
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Wed Oct 5 22:43:29 2016, Will Flanagan, Timestamp for each DRS4 waveform
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Hi DRS4 Experts,
I have been analyzing DRS4 binary data with scripts based on Stefan's (very helpful!) macro:
https://midas.psi.ch/elogs/DRS4+Forum/361 |
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Thu Oct 6 15:23:18 2016, Will Flanagan,
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Hi Stefan,
That is exactly what I'm looking for. Thanks again!
Will |
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Wed Mar 14 00:38:15 2018, Will Flanagan, sub-ms precision timestamps?
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Dear DRS4 community,
Is there a way to extract timestamps with sub-ms precision? The milliseconds of an event is clearly given when unpacking the header. I would
like to determine how far apart events are when they are within the same millisecond. |
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Wed Apr 16 03:22:43 2014, Wang , why is the first channel output error?
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Hi,
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Thu Apr 17 12:02:28 2014, Wang , The first channel is wrong.
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Hi,
I want to describe this phenomenon again. The diagram |
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Thu Jul 20 13:00:44 2017, Volodymyr Rodin, Driver installation on Windows 10
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Dear Laura
You need to disable driver signature enforcement. Then try again with path option.
It helped me. |
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Fri Jul 21 09:16:02 2017, Volodymyr Rodin, Time output
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Hello Stefan
I tried to convert binary to a simple txt file and found next problem - strange time output.
Here is output from little modification for read_binary.cpp (Its last output line also is strange: dT = -1.#IOns +- -1.$ps) |
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Tue Jul 25 14:47:05 2017, Volodymyr Rodin, Time output
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Hi again.
Okay, it works with 5.05 version very good and it is enough for me.
Besides, |
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Tue Oct 17 14:58:58 2017, Vadym Denysenko, Time offset
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Hello.
I have a simple question, can I set SetTriggerDelayNs() more than 1631 ns? |
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Wed Oct 18 11:48:14 2017, Vadym Denysenko, Time offset
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Thank you for your reply!
Stefan
Ritt wrote:
No this is not possible. But you can delay your signal externally (like |