 Wed Oct 25 19:52:33 2023, John Westmoreland, WaveDREAM Design
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Stefan,
Oh, didn't realize that.
Thanks! |
 Fri Oct 13 03:39:01 2017, Jonathan Wapman, Raspberry Pi Connection Failure
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I am currently attempting to use a raspberry pi to connect to the DRS 4 board. I whenever I try to use the DRS Command Line TOol, Revision 21435 to connect
to the drs board, I get the error
"musb_open: libusb_open() error -3" |
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Wed Jun 13 13:23:17 2018, Julian Kemp, Maximum analog input voltage
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Dear all,
I have been wondering what the maximum analog input voltage for the DRS4 V5 evaluation board is. It came with a sticker indicating that it is
"2.5V pk Max". On the other hand, when checking the manual (https://www.psi.ch/drs/DocumentationEN/manual_rev50.pdf), it says maximum allowed |
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Wed Jun 13 16:34:28 2018, Julian Kemp, Maximum analog input voltage
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Thank you! That solves my problem.
Stefan
Ritt wrote:
In principle the numbers in the manual are correct. But they relate |
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Sun Apr 5 22:16:48 2015, Julien Wulf, DRS4 Evaluation Board Baseline/Voltage Calibration
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Hi,
I`m trying to calibrate my DRS4 evoluation board to an input range of 0-1V but it doesn`t work.
1) First I tried to calibrate it with the drsosc (version 5.0.3) Software. The -0.5V - 0.5V calibration works, but during the 0 - 1V calibration |
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Thu May 21 07:18:48 2020, Keita Mizukoshi, DRS4 Evaluation board control tool 'drscl' with macro file
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Dear experts,
I would like to use DRS4 evaluation board as DAQ system for small, table-top experiment. |
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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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Mon May 25 03:36:12 2020, Keita Mizukoshi, DRS4 Evaluation board control tool 'drscl' with macro file
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Thank you very much. That is what I wanted.
Stefan
Ritt wrote:
There is an example program in the distribution under software/drscl/drs_exam.cpp |
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Thu Oct 14 15:19:00 2021, Keita Mizukoshi, livetime (or deadtime) of DRS4 evaluation board
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Dear experts,
I would like to use the DRS4 evaluation board for actual physics experiment. |
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Thu Oct 14 18:03:52 2021, Keita Mizukoshi, livetime (or deadtime) of DRS4 evaluation board
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Thank you very much for your response.
Excuse me for my very stupid confirmation.
If I take N events finally and the hardware scaler value is M, the livetime is realtime*(N/M). Is this correct? |
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Fri Oct 15 06:15:53 2021, Keita Mizukoshi, livetime (or deadtime) of DRS4 evaluation board
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Thank you very much.
Stefan
Ritt wrote:
I would say not exactly, but it's a good approximation. |
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Tue Mar 1 19:03:37 2022, Keita Mizukoshi, Scaler issue to evaluate live time
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Hi. I'm trying to evaluate livetime of the evaluation board with the hardware scaler. I'm facing a strange issue.
I took the rate with the function, DRS->GetScaler(int channel).
I guess that channels 0--3 mean the rate for the channel, and channel 4 means the counter of the trigger. |
Fri Mar 4 03:55:33 2022, Keita Mizukoshi, Scaler issue to evaluate live time 
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Thank you very much for your explanation.
I would like to show you a pulse example ('black line is the threshold). |
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Fri Apr 15 12:58:46 2016, Konstantin Gusev, DRS4 purchase information
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Hi,
I can't contact with Anita Van Loon about DSR4 chip's price and delivery.
Did you still sell it? Can you provide me this information? |
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Tue Sep 27 10:17:58 2022, Kunal Shinde, Required Firmware for DRS4 Evaluation Board Version 2.0
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Hi, I am working on an old DRS4 board Version "2.0" with firmware revision "13191", I was unable to find this specific firmware source
files ("VHDL source code"), please help me where could I find this or send me the required.
Regards, |
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Tue Sep 27 10:52:41 2022, Kunal Shinde, Required Firmware for DRS4 Evaluation Board Version 2.0
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I checked the link you provided but it seems that the link doesnt exist please send me valid one.
Regards,
Kunal |
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Fri Nov 18 05:52:45 2016, Kurtis Nishimura, Channel offsets in GetTime()
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Hello,
I have a question about the GetTime() method in DRS.cpp. I understand how the DT values are applied for all channels, and I also understand
from the evaluation board manual that the timing of each channel is synchronized at sample 0, so samples should really be aligned from channel-to-channel |
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Thu Apr 21 22:16:43 2016, Kyle Weinfurther, Negative fCellDT values from GetTimeCalibration()
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Hello Stefan,
I am using four DRS4 v5 eval boards to digitize 16 channels of data. I have recently changed from saving the timing information of the waveform
using GetTime() to GetTimeCalibration(). When changing over, I noticed that some values for fCellDT for cell 498 are negative. Over the 16 channels used, |
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Wed Jan 6 15:51:58 2016, Larry Byars, Use of Channel Cascading in drs_exam.cpp
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Hello Stefan,
Here in Rockford, TN we just got a new DRS4 evaluation board (Serail # 2612, Board Type 9, Firmware 21305) which is labeled as combined 2048.
It looks like the drs_exam.cpp only works with 1024 samples per channel. We'd like to be able to get 2048 samples from each of the four channels |
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Tue Jan 12 15:42:31 2016, Larry Byars, Use of Channel Cascading in drs_exam.cpp
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An update. I have been successful in making modifications to drs_exam.cpp so that I can get 2048 samples per channel.. The main changes were to the size
of the time_array and wave_array and adding a call to Set ChannelConfig(0,8,4). It was also necessary to change the parameters to GetWave so that the Trigger
Cell and WSR values were passed to get the channel combinations correct (2048 channel.ppt). |