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New entries since:Thu Jan 1 01:00:00 1970
ID Date Author Subjectdown Text Attachments
  847   Tue Oct 26 23:18:32 2021 Javier CaravacaTrigger multiple boards independentlyThank you Stefan. Actually I noticed that the
source code of drs_exam was available after
I started this thread, and that was the solution
  
  848   Wed Oct 27 08:11:42 2021 Stefan RittTrigger multiple boards independentlyI'm not sure if the rate would go up
to 2 kHz (not 2 GHz!). Depends how the USB
hub is designed. What you can do however
  
  717   Sun Sep 23 02:22:46 2018 Gerard Arino-EstradaTrigger OUT pulse width variable from 100 us up to 100 msHello Stefan,

I am using the DRS4 board connected
to a Raspberry PI and through the drsosc
  
  718   Wed Sep 26 14:44:14 2018 Stefan RittTrigger OUT pulse width variable from 100 us up to 100 msThe "Trigger OUT" has changed
recently. It goes high on a new trigger,
but then STAYS high until the board has been
  
  Draft   Wed Sep 26 18:25:07 2018 Gerard Arino-EstradaTrigger OUT pulse width variable from 100 us up to 100 msThank you very much for the answer, I
really appreciate your help.

Thanks!
  
  720   Wed Sep 26 18:28:20 2018 Gerard Arino-EstradaTrigger OUT pulse width variable from 100 us up to 100 msThank you very much for the answer, I really
appreciate your help.

Thanks!
  
  721   Wed Sep 26 19:21:03 2018 Stefan RittTrigger OUT pulse width variable from 100 us up to 100 msIn meantime I even updated the manual.

Stefan

  
  911   Mon Dec 23 19:31:31 2024 Matias HenriquezTrigger OUT pulse width variable from 100 us up to 100 msGiven this new scenario, what is the maximum
rate of events that can be processed then
(a rough estimation would be great, 1/2ms?)?
  
  764   Thu Jul 18 01:03:44 2019 Ismael GarciaTrace Impedance

Hi Steffan,

         
 DRS4_Analog_IN.PNG 
  765   Thu Jul 18 11:37:56 2019 Stefan RittTrace ImpedanceThe requiremnet is the same as for any
high speed analog board, there is othing
special with the DRS4. If you want to terminate
  
  766   Fri Jul 19 01:37:09 2019 Ismael GarciaTrace ImpedanceWhen you're refering to laying a 50
Ohm trace, you're referring to the SMA
input and not the interface between the output
  
  767   Sat Jul 20 12:28:14 2019 Stefan RittTrace ImpedanceThe DRS4 input is high impedance. So if
you like you can terminate it with 100 Ohm
differentially and route it with 100 Ohm.
  
  800   Wed Oct 21 15:03:13 2020 Seiya NozakiTiming diagram of SROUT/SRIN signal to write/read a write shift registerDear Stefan,

I have questions about the timing
 drs4_srin_srout_srclk.pdf 
  801   Tue Oct 27 13:37:23 2020 Stefan RittTiming diagram of SROUT/SRIN signal to write/read a write shift registerDear Seiya,

1) That's correct. SRIN is
ampled at the falling edge. Pleae make sure
 Screenshot_2020-10-27_at_13.45.39_.png 
  802   Tue Oct 27 15:02:09 2020 Seiya NozakiTiming diagram of SROUT/SRIN signal to write/read a write shift registerDear Stefan,

Thank you for your reply.
  
  803   Tue Oct 27 15:24:38 2020 Stefan RittTiming diagram of SROUT/SRIN signal to write/read a write shift registerThis is a static shift register, so you
can make the clock as slow as you want. Actually
I don't use a "clock", I just
  
  804   Wed Oct 28 04:32:19 2020 Seiya NozakiTiming diagram of SROUT/SRIN signal to write/read a write shift registerDear Stefan,

OK, it's good to hear! Thank you!
  
  724   Thu Nov 8 11:44:35 2018 Davide DepaoliTiming IssueHi,

We are using the DRS4 Evaluation Board as
  
  725   Thu Nov 8 11:54:33 2018 Stefan RittTiming IssueThat's not a bug, but a feature of the DRS4
chip. The time bins have different values
by the properties of the chip. They are generated
  
  726   Thu Nov 8 12:02:34 2018 Davide DepaoliTiming IssueThanks a lot for the quick response.
We will do as you suggest.
  
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