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STcontrol Status Overview

Understand and fix problems, set Vcal at scan initialization, improved electron-to-DAC functions for comparison with TurbDAQ. Most scans yield reasonable results now with channel configuration capability.

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STcontrol Status Overview

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  1. Scan Status Overview • ToT problem understood and fixed • Vcal needs to be set at scan initialization • Was always set to zero in STcontrol • No loop over charge in STcontrol • implemented electrons-to-DAC functions for comparison with TurbDAQ • Most scans yield reasonable results in STcontrol now • STcontrol can now configure the channel to module input is connected to from configuration file Scan Status 06/12/10 M. Wittgen Page 1

  2. Timewalk Scans • Basic configuration • One level 1 trigger • Loop over strobe delay 0-63 on RCE and • Vcal 70 -1000 on host (steered by STcontrol) • VCAL is 10 bit value (0-1023) • Misrepresented as char/octet in PixelModuleConfig.idl • fixed to unsigned long (32bit) Scan Status 06/12/10 M. Wittgen Page 2

  3. STcontrol Status Non-BOC-Scans Scan Status 06/10/10 M. Wittgen Page 3

  4. Scan Setup • Tested with module M511958 with HV connected • one FEC broken • threshold tuned to 3200 electrons with TurboDAQ • ToT tuned to 30 cycles at 20000 electrons • Framework with STcontrol now in place • probably still some more bug • would be good to check the result with the scan experts Scan Status 06/12/10 M. Wittgen Page 4

  5. CORBA Problems • Histograms are published to histogram server • takes several minutes if all histograms are sent • rate in the order of ten per second • 101 bins x (3x ToT + 3 BCID + OCC) = 707 histograms • Alternative (faster) method: download from RCE • CORBA crashes (timeout?) when more then a certain amount (bins>50) of histograms present • For now workaround in STcontrol • download one-bye-one • reasonably fast Scan Status 06/12/10 M. Wittgen Page 5

  6. TurboDAQ/STcontrol GDAC Tune Scan Status 06/12/10 M. Wittgen Page 6

  7. TurboDAQ/STcontrol FDAC Tune Scan Status 06/12/10 M. Wittgen Page 7

  8. GDAC FDAC Tune Scan Status 06/12/10 M. Wittgen Page 8

  9. IF Tune Scan Status 06/12/10 M. Wittgen Page 9

  10. Analog Scan ToT=30 @ 2000 e- Scan Status 06/12/10 M. Wittgen Page 10

  11. ToT vs charge calibration Scan Status 06/12/10 M. Wittgen Page 11

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