 Mon Oct 25 18:48:04 2021, Javier Caravaca, Trigger multiple boards independently
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Hello,
I recently acquired 4 DRS4 boards and I wanted to ask if it was possible to trigger them independently from the same computer.
I know that you can daisy-chain boards and trigger them all at the same time, but in my case, each of my boards record independent events, so |
 Tue Oct 26 23:18:32 2021, Javier Caravaca, Trigger multiple boards independently
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Thank you Stefan. Actually I noticed that the source code of drs_exam was available after I started this thread, and that was the solution that
occurred to me too. I'll give that a try.
A related question is: if the 4 boards are triggering at max rate (500Hz), would the total data throughtput (of the four boards together) be |
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Fri Jun 9 04:11:40 2023, Javier Caravaca, Different sampling rates in multi-board configuration
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Hello,
Is it possible to have different sampling rates in multi-board configuration? I tried using the scope application but I am unable to change
the sampling rate independently. |
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Tue Nov 16 01:27:51 2021, Jacquelynne Vaughan, V3 board, only one channel works, all components at each channel input working
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Hi everyone,
I'm still looking through the forum for an answer to this question, but thought I'd go ahead and post anyway just in case it hasn't
been answered yet. If it has I can take this post down. |
Thu Sep 29 17:26:13 2016, Jacob Hwang, Output Timing Drifting 
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Hello,
I have designed four DRS4 chips (36 channels) on my board running at 1GHz (REFCLK=488.28KHz) and ROI mode. All 4 chips' REFCLK, DWRITE, RSRLOAD,
and SRCLK are buffer driven by the same source. SRCLK is set to 40MHz to reduce the readout time. |
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Tue Jan 12 17:57:03 2016, Jack Bargemann, Compiling DRS-exam
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I am trying to compile drs-exam, but am getting an error message I do not understand:
1>musbstd.obj : error LNK2019: unresolved external symbol _usb_open referenced in function _musb_open
1>musbstd.obj : error LNK2019: unresolved external symbol _usb_close referenced in function _musb_close |
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Wed Jun 20 10:40:21 2012, Ivan Petrov, triger for measuring time between pulses in channels
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Stefan Ritt wrote:
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Wed Jun 20 14:36:01 2012, Ivan Petrov, triger for measuring time between pulses in channels
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Stefan Ritt wrote:
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Mon Jul 9 14:14:48 2012, Ivan Petrov, Problem compiling drs_exam.cpp on windows
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Hello again. I have not got evaluation board yet, but already faced some difficulties:) I'm trying to compile drs_exam.cpp on Windows 7 using dev-c++
with imagelib-2 and WxWindows 2.4.2 DevPaks installed, but nothing works. Compile log is attached. Honestly, I'm not very familiar with c++, so any suggestions
will be helpful. Thank you. |
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Wed Jul 11 10:04:51 2012, Ivan Petrov, Problem compiling drs_exam.cpp on windows
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Stefan Ritt wrote:
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Thu Jul 18 01:03:44 2019, Ismael Garcia, Trace Impedance
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Hi Steffan,
I'm an engineer at UCLA developing a board with the DRS4 chip. Our team has a question on |
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Fri Jul 19 01:37:09 2019, Ismael Garcia, Trace Impedance
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When you're refering to laying a 50 Ohm trace, you're referring to the SMA input and not the interface between the output of the Op-AMP(THS4508)
buffer
and the inputs of the DRS4(IN0-IN8). Is there a recommended diffential impedance for IN0-IN8? |
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Tue May 19 14:14:45 2015, Ilja Bekman, DRS4 firmware UCF constraints
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Hello, I'm using two DRS4 rev.5 boards for 8ch readout and triggering.
I needed to modify the trigger logic and implement some tweaks in the firmware, and noticed that
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Wed Oct 7 13:06:34 2015, Ilja Bekman, Voltage Calibration with signal on the input
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Sun May 2 18:36:14 2010, Ignacio Diéguez Estremera, DRS4 chip model
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Hi all,
i'm an electronics engineering student at UCM (Madrid) working on my master's thesis within the CTA collaboration. I'm designing the readout electronics
for the telescope's camera, and i'm focusing in using GAPDs instead of PMTs and using the domino chip for the sampling of the signal. I was wondering if |
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Mon May 3 17:06:02 2010, Ignacio Diéguez Estremera, DRS4 chip model
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Stefan Ritt wrote:
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Mon May 3 23:21:55 2010, Ignacio Diéguez Estremera, DRS4 chip model
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Stefan Ritt wrote:
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Tue May 4 16:23:16 2010, Ignacio Diéguez Estremera, DRS4 chip model
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Stefan Ritt wrote:
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Wed May 5 22:30:50 2010, Ignacio Diéguez Estremera, Random noise spec in datasheet
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Hi,
According to DRS4's datasheet, the random noise is 0.35mVrms. Is this the input equivalent noise voltage? It is computed over the 0-950MHz frequency
band? |
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Fri Nov 3 12:11:14 2017, Håkan Wennlöf, Triggering using AND
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Hi!
I'm using the DRSOsc program, and I have a question that I need a bit clarified;
When triggering using AND between two channels, am I then triggering on rising/falling edge of both channels, or on the actual values? |