Download presentation
Presentation is loading. Please wait.
Published byClaude Turner Modified over 8 years ago
1
R. Michaels, JLAB PREX Mtg, July 2008 Compton DAQ (General) Remaining experts : Sirish Nanda, Alexandre Camsonne, me Recent Exercises Port to vxWorks 5.5 -- went ok, except one I/O not addressable -- may need faster cpu’s on ROC1/2 Incorporate FADC DAQ into General DAQ Speed Tests (goal: to do oversampling for PREX) -- 180 Hz may be possible (oversample 6) -- Not done yet, in contact with Damien Neyret.
2
R. Michaels, JLAB PREX Mtg, July 2008
3
R. Michaels, JLAB PREX Mtg, July 2008 ROC 1 / 2 : Photon and Electron Detector (the main VME crate)
4
R. Michaels, JLAB PREX Mtg, July 2008 Software on ROC1 / 2 DMA mgt of photon & electron data Scaler readout, and informs mailbox read is done Acquisition state machine mgt Online computing, prepares buffers for event builder
5
R. Michaels, JLAB PREX Mtg, July 2008 TLOOP Process on ROC 1 / 2
6
R. Michaels, JLAB PREX Mtg, July 2008 “ADC0” : a customized card involved in the trigger (no longer an ADC, it has FPGA and NIM I/O)
7
R. Michaels, JLAB PREX Mtg, July 2008
8
R. Michaels, JLAB PREX Mtg, July 2008
9
R. Michaels, JLAB PREX Mtg, July 2008
10
R. Michaels, JLAB PREX Mtg, July 2008
11
R. Michaels, JLAB PREX Mtg, July 2008 Compton Integrating DAQ CMU group & me
12
R. Michaels, JLAB PREX Mtg, July 2008 Conclusions -- Compton DAQ Priority: Implement new ETROC (electron detector) Speed tests (might prove we need 2 new 6100 cpu’s) Calibration of FADC data (photon detector) -- need trigger / time-correlation Complex system : -- replace obsolete / slow parts ? -- spares situation ? -- need improved in-house expertise Alex’s talk
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.