| ID | 
Date  | 
Author | 
Subject | 
Text | 
  | 
| 
  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 | 
   | 
| 
  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 | 
   | 
| 
  886  
 | 
Tue Jul 19 02:35:04 2022 | 
Jingyu Zhang | Increase event rate, use ROI mode, and install sw from source in Mac | Dear 
experts, 
 
 
 | 
   | 
| 
  885  
 | 
Fri Jun 24 09:57:36 2022 | 
LynseyShun | Spikes/noise sensitive to clock settings? | Hello, I now have periodic spikes in CH0 
and CH1 output. How can I eliminate 
these spikes? I'm sorry I didn't | 
   | 
| 
  884  
 | 
Thu Jun 16 05:31:25 2022 | 
LynseyShun |   | Thank you very much for your help!
 
 
 
	
 
		
 
			 | 
   | 
| 
  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 | 
   | 
| 
  882  
 | 
Tue Apr 12 10:40:36 2022 | 
LynseyShun |   | Hello, I am Lynsey. now I set A3-A0 to 
1001 in ROI mode, but only OUT0 has output, 
and the other seven channels(OUT1-OUT7) do | 
   | 
| 
  881  
 | 
Tue Mar 15 13:07:50 2022 | 
Matias Senger | Time calibration and the C++ API | Thanks for your help. If I look into the 
app the behavior for the 4 channels is exactly 
as you show: | 
   | 
| 
  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, | 
     | 
| 
  879  
 | 
Sat Mar 12 16:52:36 2022 | 
Matias Senger | Time calibration and the C++ API | Dear Stefan,
 
 
For the time of each bin I am using 
the values returend by `GetTime` without | 
   | 
| 
  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 | 
   | 
| 
  877  
 | 
Fri Mar 11 17:26:15 2022 | 
Matias Senger | Time calibration and the C++ API | I am using the V5 board at a fixed sampling 
frequency. With the `drsosc` app I have executed 
the time calibration at 5 GS/s (actually | 
   | 
| 
  876  
 | 
Tue Mar  8 12:20:00 2022 | 
Matias Senger | Why does not trigger at higher sampling frequencies? | Sorry for the spam. Just want to let you 
know that I was able to solve the problem, 
it was all due to a `float` being casted | 
   | 
| 
  875  
 | 
Tue Mar  8 00:25:56 2022 | 
Matias Senger | Why does not trigger at higher sampling frequencies? | I have seen in the app that the trigger 
source buttons do something different than 
the "or" and "transparent | 
   | 
| 
  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 | 
     | 
| 
  873  
 | 
Mon Mar  7 13:38:03 2022 | 
Radoslaw Marcinkowski | Problems with DRS4 Evaluation Board after Windows 10 upgrade - share of experiences  | Dear DRS4 Users,
 
 
I would like to share my expireinces 
with using of DRS4 Evaluation Board software | 
   | 
| 
  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, | 
   | 
| 
  871  
 | 
Sun Mar  6 17:54:47 2022 | 
Matias Senger | Why does not trigger at higher sampling frequencies? | I have connected 3 signals to the DRS4 
Evaluation Board V5 which look like this 
in the drsosc app: | 
   | 
| 
  870  
 | 
Fri Mar  4 03:55:33 2022 | 
Keita Mizukoshi | Scaler issue to evaluate live time  | Thank you very much for your explanation.
 
 
 
 
 
I would like to show you a pulse | 
     | 
| 
  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 | 
   |