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ID Date Author Subjectdown Text Attachments
  470   Tue Jan 12 16:06:07 2016 Stefan RittUse of Channel Cascading in drs_exam.cppHi Larry,

sorry my late reply, swamped with
work here. You were right in the modifictions
  
  820   Wed Apr 7 03:29:39 2021 Sean QuinnUnexpected noise in muxout: t_samp related?Dear DRS4 team,

I'm experiencing some issues
that seem to be isolated to the ASIC, and
 transp_example.PNGtransp_readout_example_noise.PNGdrs_datasheet_fig11.PNGr0_r1_delay.png 
  821   Wed Apr 7 08:26:12 2021 Stefan RittUnexpected noise in muxout: t_samp related?Dear Sean,

noise in transparent mode comes
from some coupling to your system clock.
  
  822   Fri Apr 9 20:22:13 2021 Sean QuinnUnexpected noise in muxout: t_samp related?Hi Stefan,

 

Thanks much for the quick reply.
 ex_cal_wave.png 
  824   Fri Apr 9 20:55:28 2021 Stefan RittUnexpected noise in muxout: t_samp related?If you do the cell calibration correctly,
your noise should be ~0.4 mV. You seem to
be 2-3x larger. The periodic negative spikes
  
  826   Fri Apr 9 21:56:54 2021 Sean QuinnUnexpected noise in muxout: t_samp related?Yes, there is some systematic board noise
on this prototype, unfortunately 
  
  927   Mon Aug 18 06:52:51 2025 Jonathan BradshawUnexpected behaviour following RSRLOADHello

I'm working to bring up a new
capture board using a DRS4 and I'm having
  
  928   Tue Aug 19 02:40:58 2025 Jonathan BradshawUnexpected behaviour following RSRLOADSome images

Notes:


top of the puicture shows
 6x 
  929   Tue Aug 19 23:10:30 2025 Jonathan BradshawUnexpected behaviour following RSRLOADTurns out it was a damaged DRS4 IC.

I ported the drs4_eval5_app code
onto our board and observed much the same
  
  783   Mon Mar 23 15:03:28 2020 Ajay KrishnamurthyUSB trigger issueHello,

I had forgotten to disable the
turn off the power to the USB drive on Windows
  
  292   Tue Sep 10 10:31:30 2013 Akira OkumuraUSB connection stopsHello the DRS4 team,

I and some of my colleagues are using DRS4
 drs_simple.cpp 
  293   Wed Sep 11 02:41:28 2013 Andrey KuznetsovUSB connection stopsHi,

although I don't have a chance to test your
  
  297   Wed Sep 25 14:42:00 2013 Akira OkumuraUSB connection stopsHello Andrey,

Thank you for your advise. But we never terminated
  
  324   Wed Jan 15 15:48:55 2014 Stefan RittUSB connection stopsHi,

finally I found some time to look into this
  
  377   Tue Oct 7 14:09:02 2014 Stephane DebieuxUSB Microcontroller firmwareHi,
I'm trying to recompile the USB microcontroller
firmware starting from the drs_eval.c file
  
  378   Mon Oct 13 16:46:56 2014 Stefan RittUSB Microcontroller firmware

    

       
            
  
  379   Mon Oct 13 17:08:40 2014 Stephane DebieuxUSB Microcontroller firmware

    

       
            
  
  380   Mon Oct 13 17:14:58 2014 Stefan RittUSB Microcontroller firmware

    

       
            
  
  381   Tue Oct 14 16:21:07 2014 Stephane DebieuxUSB Microcontroller firmware

    

       
            
  
  382   Tue Oct 14 16:29:12 2014 Stefan RittUSB Microcontroller firmware

    

       
            
  
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