Difference between revisions of "OWG meeting 29-Aug-2007"
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* Latest simulation results on occupancies - David L | * Latest simulation results on occupancies - David L | ||
* Constraints from VME and network interfaces - Dave A | * Constraints from VME and network interfaces - Dave A | ||
− | * Recent results on extracting time from ADC data - Simon T | + | * Recent results on extracting time from ADC data - Simon T[http://www.jlab.org/~staylor/fadc_timing.pdf] |
* Design of 125 MHz FADC, FPGA capabilities, etc. relevant for event size - Gerard V | * Design of 125 MHz FADC, FPGA capabilities, etc. relevant for event size - Gerard V | ||
Revision as of 09:56, 29 August 2007
Contents
Overview
This is a special one-topic meeting whose goal is to try to understand the event size given the recent simulation results on occupancies, especially in the FDC. Note that the 2002 Hall D design document lists a 4kB average event size, although it is possible that the FDC itself may take 4kB (or even more). The average event size affects the design of the DAQ system in a number of ways, so this needs to be understood sooner rather than later. Fortunately the DAQ architecture is highly scalable, so accomodating higher event sizes and event rates is not a big problem.
The goal of this meeting is to:
- Understand what we know and do not know about event size, occupancies, etc.
- Devise a plan to learn what we need to learn
Agenda
- Brief intro and overview - Elliott W
- Channel counts, etc. - Fernando B
- Latest simulation results on occupancies - David L
- Constraints from VME and network interfaces - Dave A
- Recent results on extracting time from ADC data - Simon T[1]
- Design of 125 MHz FADC, FPGA capabilities, etc. relevant for event size - Gerard V
Time/Location
1:00pm Wed 29-Aug-2007 Cebaf Center F224
To phone in, send me your telephone number and I'll call you.
Announcements
Next Meeting
- TBD (some of us will be out of town the first week of Sep, and OECM review is second week of Sep)