| ID |
Date |
Author |
Subject |
Text |
 |
|
855
|
Mon Jan 3 17:13:41 2022 |
Stefan Ritt | DRS4 request assistance | 1. fDOMINO is defined as fREFCLK * 2048
2. Good values can be derived from
the evaluation board schematics: C1=4.7nF, |
|
|
857
|
Sat Jan 15 10:50:47 2022 |
Stefan Ritt | I want to know about the readout |
student_riku |
|
|
859
|
Tue Jan 25 14:34:42 2022 |
Stefan Ritt | Regarding measuring for a set time | drsosc is a graphical application contiously
acquiring data from the board, and drscl
is a command line tool for debugging, as |
|
|
864
|
Tue Feb 15 12:02:29 2022 |
Stefan Ritt | Cannot trigger on pulses, have to trigger on undershoot | The trigger comparator is a ADCMP601 unit
which requires a minimum pulse width of 3-4
ns. I see that your pulses are only 1-2 ns |
|
|
868
|
Thu Mar 3 13:47:26 2022 |
Stefan Ritt | How to convert samples to volt? | The 'drscl' tool is more for experts,
normal users are advised to use the DRSOsc
oscilloscope. |
|
|
869
|
Thu Mar 3 16:14:16 2022 |
Stefan Ritt | Scaler issue to evaluate live time | The scalers are read out 10x per seconds,
so they have an accuracy of 10 Hz. I tried
a 50 Hz pulser, and measured 40 Hz, I tried |
|
|
872
|
Mon Mar 7 08:45:32 2022 |
Stefan Ritt | Why does not trigger at higher sampling frequencies? | Unfortunately I have not idea what the
problem could be. In principle the trigger
should be independent of the sampling speed, |
|
|
874
|
Mon Mar 7 16:37:54 2022 |
Stefan Ritt | Scaler issue to evaluate live time | I tried your measurement with the DRSOscilloscope
app (see below), and I measure a constant
difference of 10 Hz among the whole range |
|
|
878
|
Sat Mar 12 10:13:24 2022 |
Stefan Ritt | Time calibration and the C++ API | DRSBoard::GetTime is declared in DRS.h
line 720.
If you want to measure timing down |
|
|
880
|
Mon Mar 14 08:59:51 2022 |
Stefan Ritt | Time calibration and the C++ API | Looks like you have the some time calibration,
not sure if it's the correct one. Sample
the sine wave from the calibration clock, |
|
|
883
|
Tue Apr 12 10:49:27 2022 |
Stefan Ritt | | A3-A0 = 1001 should be all you need to
activate OUT0-OUT7. It works in our designs.
Maybe double check the address lines with |
|
|
887
|
Fri Jul 29 14:09:35 2022 |
Stefan Ritt | Increase event rate, use ROI mode, and install sw from source in Mac | The firmware from the website always reads
1024 bins. You have to modify it to stop
before that, like reading only 128 samples |
|
|
888
|
Fri Jul 29 17:23:43 2022 |
Stefan Ritt | Spikes/noise sensitive to clock settings? | Look at the DRS4 data sheet, Figure 12.
You see there the rising SRCLK pulse which
outputs the next analog value. You also see |
|
|
891
|
Tue Sep 27 10:37:11 2022 |
Stefan Ritt | Required Firmware for DRS4 Evaluation Board Version 2.0 | You find each software version at the usual
download location at
https://www.dropbox.com/home/drs/drs4/distribution/Download/Linux |
|
|
893
|
Tue Sep 27 15:20:55 2022 |
Stefan Ritt | Required Firmware for DRS4 Evaluation Board Version 2.0 | Sorry, got the wrong link. Here the right
one: https://www.dropbox.com/sh/clqo7ekr0ysbrip/AACoWJzrQAbf3WiBJHG89bGGa?dl=0
If you untar the archive, you will |
|
|
896
|
Mon Oct 24 12:50:24 2022 |
Stefan Ritt | Channel Cascading Option in the 2048-bin | The board is delivered in one or the other
mode and not meant to be changed by the user,
since this requires very delicate soldering |
|
|
897
|
Mon Feb 6 13:28:28 2023 |
Stefan Ritt | DRS4 installation via tar in ubuntu not working | I fixed the described error. Can you try
the new version from https://bitbucket.org/ritt/drs4eb/commits/80b3af753ed32eb365725f0f3244a4109347c01b
|
|
|
899
|
Mon Jun 12 14:22:04 2023 |
Stefan Ritt | Different sampling rates in multi-board configuration | No, that's unfortunately not possible.
Stefan
|
|
|
902
|
Wed Sep 13 13:18:45 2023 |
Stefan Ritt | Input range switch added in Version 2.1.3 | To achieve an input range of -1V to 0V,
you need an external buffer which can shift
this range into the DRS4 range of -0.5V to |
|
|
904
|
Wed Oct 25 19:47:23 2023 |
Stefan Ritt | WaveDREAM Design | No. This is a proprietary design.
Best,
Stefan |
|