STT meeting
===========
    
   Friday, 12 May 2000, at 3:30pm CDT (4:30 EDT)
             in the Ninth Circle
Agenda: 
   * STT simulator status [SilviaTR]
   * news on monitoring/downloading  [BillL]
   * AoB

 (with video-conferencing to Columbia)

People present at meeting:
Brian Connolly, Hal Evans (via video-link), John Hobbs, Bill Lee, 
Harrison Prosper, Wendy Taylor, Silvia Tentindo-Repond, 
Horst Wahl

(1) crates,...
    The eight Columbia-bought VIPA crates have been tested at PREP.
    Marvin Johnson suggests to send them to D0, c/o Ed Arko.
    One of these crates needs then to be sent back to ColumbiaU.
 The best/safest  place to store them would be
the racks M202, M203, M204 which are foreseen for the STT.

Ed Arko has already installed power supply supports in these racks, and 
Marvin would be very happy (and it would everybody's life much simpler) if
we could sign off on these powersupply supports.
They consist of trays which provide room for 4 powersupplies; each of the
4 "boxes" (trays) has the (inner) dimensions 8 1/2"(w) x 6"(h) x 13" (d).
Note that the height of 6" also has to accommodate room for the mains 
powercable, i.e. about 5 1/2 " can actually be used for powersupply.
This is big enough to accommodate, e.g. ACDC 5V,200A powersupplies.

We need to compile information about power needs of various cards in
STT crate:
how many different voltages do we need? +- 5V, +-3.3V?
   - note 12 V is a VME standard -- do we also need that?
   - does power PC need 12V? (answer provided by Bill Lee: no - only needs +5V)
  John Hobbs will check with Chuck Pancake about STC needs, and Hal Evans will
   provide estimate for FRC. 
 
(2) STT simulator status [SilviaTR]
(see Silvia's transparencies at
 http://d0server1.fnal.gov/projects/Stt/Webdoc/sttsimul/str000512.ppt,
 http://d0server1.fnal.gov/projects/Stt/Webdoc/sttsimul/str000512.pdf)
 - need to find out about SimSMTHitChunk -- how is it filled (ask Serban)
 - plan to make next release with RawDataChunk (if SMT one is OK)
 
(3) Monitoring/downloading news (Bill Lee)
  - Axel Naumann, a new grad student at U. Nijmwegen, will be at Fermilab
  starting mid June; he will help Bill;
  in addition, there will also be a new FSU student (Craig Group) at Fermilab 
  from mid-May (i.e. next week) to mid August. The plan is for these three to 
  become apprentices of Fritz Bartlett in June, to learn everything there is 
  to know about EPICS and related subjects.
  
  - Bill has been in touch with Dave Buchholz and is continuing to learn about
    the 2nd data path and the related hardware.
    
  - Bill would like input about the tools that will need to be developed to run
  under VxWorks on the CPU, e.g.
     - downloading tools,
     - tools to initialize PCI bus,
     - .....
  - should also complete list of things to download (plus size)
  - question from Georg: how does FRC tell CPU about need to read out monitoring
       information?  Bill thinks that sending interrupt over VME should be OK.
       Have to understand implications on deadtime;
       - do we need special wire connection from FRC to CPU for this purpose?