March 26, 2008 online meeting minutes

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present: Sergey Boyarinov, Valeri Koubarovski,

1. New level1 trigger system has been installed; it includes following components:

  • clastrig2: CAEN v1495 logic unit with 2 daughter cards: 8 NIM input card and 32 ECL output card
  • sc2: 6 OR modules
  • outputs from TOF and ST pretrigger discriminators were rerouted to the v1495 board: ST directly, TOF through OR modules making OR of all channels in one sector (Sergey B.)
  • Valeri and Pavel developed the photon level 1 trigger logic diagram
  • Ben programmed v1495 module with desired logic and produced Windows-based GUI to control the logic
  • Sergey B. developed vxWorks-side supporting library including tcp server to support Windows-vxWorks communication
  • Sergey B., Nerses and Hovanes implemented EPICS support for the new electronics, including ioc in clastrig2

System is in commissioning right now, EPICS part still under development; full system testing will be conducted during 3 following days

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