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Entry  Sun Apr 5 22:16:48 2015, Julien Wulf, DRS4 Evaluation Board Baseline/Voltage Calibration  
    Reply  Tue Apr 21 12:52:18 2015, Stefan Ritt, DRS4 Evaluation Board Baseline/Voltage Calibration  
       Reply  Tue Apr 21 13:03:38 2015, Daniel Stricker-Shaver, DRS4 Evaluation Board Baseline/Voltage Calibration  
          Reply  Tue Apr 21 13:06:39 2015, Stefan Ritt, DRS4 Evaluation Board Baseline/Voltage Calibration  
Message ID: 401     Entry time: Sun Apr 5 22:16:48 2015     Reply to this: 406
Author: Julien Wulf 
Subject: DRS4 Evaluation Board Baseline/Voltage Calibration  

Hi,

I`m trying to calibrate my DRS4 evoluation board to an input range of 0-1V but it doesn`t work.

1) First I tried to calibrate it with the drsosc (version 5.0.3) Software. The -0.5V - 0.5V calibration works, but during the 0 - 1V calibration the Software crashes.

2) I also tried to calibrate the input range with a C++ DAQ Package (based on drs_exam). Here the code of the calibration:

    ....

    b->SetInputRange(0.) (Center at 0 V )

    b->CalibrateVolt(NULL);

   ....

   Calibration Works

   ....

   b->SetInputRange(0.5) (Center at 0.5 V )

   b->CalibrateVolt(NULL);

  ....

   Results in: Found 4096 stuck pixels on this board.

Did I do a mistake or is this a normal behaviour of the board? Also the board often crashes and I get a magic number 0000 after restarting the DAQ. Then the board needs to be restarted via pulling the plug. ( I ensured that I terminate the USB connection before I close the program with "delete drs"). Is there a possibility to avoid this error?

My OS: Ubuntu 14.04 LTS.

Ciao,

Julien

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