Online telecon notes for August 21, 2002

Attending:

• Zhigang Wang (UCSC/TKR)
• Johann COHEN-TANUGI (PISA-ITA/TKR)
• Connie Houchens (GSFC/ACD)
• Glen Unger (GSFC/ACD)
• Byron Leas (NRL/CAL)
• Dan Wood (NRL/CAL)
• Mike Huffer (SLAC/ELX)
• Curt Brune (ELX/FSW)
• Alicia Kavelaars (SLAC/I&T-SVAC)
• Selim Tuvi (SLAC/I&T-Online), minutes author
   

• Core Online (Selim, Alicia)
  • Selim continued work on the event capture for tracker. The code was tested against the tracker hardware and hippodraw was used to plot the results with success. More error checks may be needed to handle the UDP transport. Byron asked the rate that events were received. Selim estimates it is around 10 events/sec. Post-meeting comment: This may be due to the slow commanding performance since the DAC value was being set and a script was being executed to trigger each event.
  • Alicia commented on the new LabVIEW browser VIs for CAL, AEM and TKR for reading and writing registers. They will be included in the next EM1 release.
  • Alicia is working on the GLAT configuration app in QT.
     
• CAL (Byron)
  • Byron started work on speeding up commanding performance. He setup a 91 register decom frame
  • The problem he is having is the fact that he wanted to get the GCFE status after each read and decomming doesn't have a way of returning this information. So he is working on creating a set of RTDD status records and do the read in a script and decommutate both the register values and the status values. Downside of this is waste of storage since only 4 bits are needed per status value.
  • Byron also added a flag at the end of the decom frame record to determine when the decomming  finishes on the NT side. But he is having problems in reading this flag. Selim sent him a debug version of the TelemetryClient that displays incoming packet data.
  • Parity bit issue. Curt implemented functions to manipulate the parity bit that Byron needs. Need to discuss with Ric the best way to expose these methods in SCL. Mike thinks this should be addressed sooner or later since it is going to affect TKR & ACD as well.
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• TKR (Zhigang, Johann)

  • Shipment status and electronic readiness on the TEM board. .
    • For tracker no shipment was scheduled before the end of the year.
    • Get together with tracker people and decide when and how they need TEMs delivered. Talk with Dave and Mike
    • Discuss with Roberto the necessities and what to expect for March'03
  • SLAC visit from Pisa by middle of October
  • Johann will install the teststands tomorrow. Will check if they have received any SBC boards.
  • Possibility of providing training to the summer student (Carmelo). Discuss with Ric to setup a time table.
  • ZhiGang tested received and tested the new versions of the front end chips using the comm card interface and python. SCL not used yet. The chips tested OK.
• ELX (Mike)
  • TEM
    • TEM boards due from production next week
    • Curt is reporting good progress on the test and validation of the new features (environmental and new GTIC tkr trigger masks)
    • Mike is going to issue a new version of the TEM document
  • AEM
    • Nothing new
  • PSA & Transition Board
    • PSA will be ready soon.
    • Prototype for a PSA enclosure is in the works
    • Transition board work on hold because of the TEM work, new set of cabling
    • No TEM boards go out without a transition board
  • LCB
    • Gunther hired 4 new EE to get boards fabricated
    • To relieve pressure on Leonid a new engineer will be assigned to LCB
    • Delivery will be delayed due to the new engineer roughly until second week of September
• ACD (Connie)
  • Connie is working on the decom frame records, having problems with the packet size, will check the record definition.
  • In contact with Dave Sheppard for a test plan.