| ID | 
Date | 
Author | 
Subject  | 
Text | 
  | 
| 
  116  
 | 
Fri Feb 25 10:13:51 2011 | 
Stefan Ritt | Announcement digital pulse processing workshop | Dear colleague,
 
if you live not so far from Zurich, 
you might be interested in this workshop: | 
   | 
| 
  6  
 | 
Mon Apr 27 15:09:49 2009 | 
Stefan Ritt | Amplitude and Timing calibration for DRS4 Evaluation Board | This is a quick notification to all users 
of the current DRS4 evaluation board.
 
As you all know, the DRS4 chip needs | 
     | 
| 
  584  
 | 
Sat Jan 28 14:11:58 2017 | 
Danny Petschke | AND trigger problems  |  Dear Stefan,
 
 
I have 2 identical pulses as a 
splittet signal with an amplitude of 300mV. | 
   | 
| 
  585  
 | 
Mon Jan 30 16:37:33 2017 | 
Stefan Ritt | AND trigger problems  | In the evaluation board we use an ADCMP601 
comparator, which has a setup and hold time 
of 4.6 ns. So a pulse which exceeds the threshold | 
   | 
| 
  616  
 | 
Thu Jun  8 14:26:23 2017 | 
Rebecca Schmitz | AND Trigger problems with 2-3 channels | Hello,
 
 
I work with the DRS4 Evaluation 
Board V5 and I have a problem with the software. | 
   | 
| 
  617  
 | 
Thu Jun  8 15:52:20 2017 | 
Stefan Ritt | AND Trigger problems with 2-3 channels | Can you post a screenshot where I can see 
the channel waveforms, the configuration 
and the trigger settings? | 
   | 
| 
  618  
 | 
Fri Jun  9 09:44:33 2017 | 
Rebecca Schmitz | AND Trigger problems with 2-3 channels | Hello,
 
 
It 
seems that a coincidence with two fixed channels | 
      | 
| 
  620  
 | 
Thu Jun 22 21:36:08 2017 | 
Stefan Ritt | AND Trigger problems with 2-3 channels | Hi,
 
 
from our screenshots I see the 
following: | 
   | 
| 
  364  
 | 
Thu Aug 21 11:03:36 2014 | 
Martin Petriska | 10GSps on DRS4 Evm with delay cables |  Hi, I read its possible to use channels 
2,4,6 to extend 200ns to 400ns (1024bins 
to 2048). | 
   | 
| 
  365  
 | 
Tue Aug 26 12:32:21 2014 | 
Stefan Ritt | 10GSps on DRS4 Evm with delay cables | 
 
 
    
 
 
       
 
             | 
   | 
| 
  697  
 | 
Thu May 17 13:29:34 2018 | 
Stefan Ritt | "Symmetric spikes" fixed | Good news for all DRS4 users. After many 
years, I finally understand where the "symmetric 
spikes" come from and how to fix them. | 
      | 
| 
  714  
 | 
Mon Sep  3 11:17:26 2018 | 
Martin Petriska | "Symmetric spikes" fixed | Hi,
 
 
Is it possible to fix it by FPGA 
changes?  I see readout cycle (proc_drs_reedout) in | 
   | 
| 
  715  
 | 
Tue Sep  4 13:04:30 2018 | 
Stefan Ritt | "Symmetric spikes" fixed | Yes it's possible, but I have to find 
time for that. The software of the evaluation 
board takes care of the spikes ("remove | 
   | 
| 
  716  
 | 
Thu Sep 13 18:09:13 2018 | 
Martin Petriska | "Symmetric spikes" fixed | Ok, so I made it ... and Yes it works :), 
 
 
https://youtu.be/0noy4CoFoh8 
 
 
here is changed part in drs4_eval4_app.vhd | 
   | 
| 
  106  
 | 
Wed Jul 21 10:46:32 2010 | 
Jinhong Wang |  ENOB of DRS |  Hi, Stefan, I see in your ppt "Design 
and performance of 6 GSPS waveform digitizing 
chip DRS4" , you define DRS4 ENOB as | 
   | 
| 
  107  
 | 
Wed Jul 21 10:58:20 2010 | 
Stefan Ritt |  ENOB of DRS | 
 
 
    
 
 
       
 
             | 
   | 
| 
  402  
 | 
Thu Apr  9 11:46:33 2015 | 
Felix Bachmair |  DRSBoard::SetTriggerSource | Hi
 
 
I have a question about the function 
SetTriggerSource in the class DRSBoard (DRS.h/DRS.cpp) | 
   | 
| 
  405  
 | 
Tue Apr 21 12:01:45 2015 | 
Stefan Ritt |  DRSBoard::SetTriggerSource | Your first assumption is correct, e.g.
 
 
source = 00000000'00000001 
= 0x0001 ==> CH1 | 
   | 
| 
  257  
 | 
Sun May 26 13:08:52 2013 | 
tmiron alon |   | Hallo,
 
I'm using DRS4 Evaluation Board Rev 
4.0 and I'm trying to  change the output | 
   | 
| 
  258  
 | 
Fri Jun  7 10:22:48 2013 | 
Stefan Ritt |   | 
 
 
    
 
 
       
 
             | 
   |