Online telecon notes for June 19, 2002.

Attending:

• Zhigang Wang (UCSC/TKR)
• Connie Houchens (GSFC/ACD)
• Jim La (GSFC/ACD)
• Byron Leas (NRL/CAL)
• Dan Wood (NRL/CAL)
• Curt Brune (SLAC/FSW)
• JJ Russell (SLAC/FSW)
• Mike Huffer (SLAC/ELX)
• Larry Wai (SLAC/I&T-IFCT)
• Eduardo do Couto e Silva (SLAC/I&T-SVAC)
• Selim Tuvi (SLAC/I&T-Online)
• Ric Claus (SLAC/I&T-Online), minutes author

• Python/HippoDraw (data visualization package) interaction work in progress
• Will transfer real time event data from embedded system using sockets to hippodraw
• Will also handle monitoring data
• Dan’s event data server is in the Flight Software code repository
• Will consider ROOT for data visualization as well as Hippo
• Electronics status – Mike
• Mark Freytag is making good progress on the AEM board. Document expected next week
• Changes to the TEM design have required it to go through another layout. Leonid Sapozhnikov expects it to be done by the end of the week.
• To avoid having to support two kinds of TEM, the initial modules will be replaced
• Environmental registers on the TEM have been settled. The TEM document will be updated.
• Curt is making good progress on the tracker portion of the TEM
• Command/Response, event readout, CalStrobe are all working
• Some issues to be resolved with TKR folk
• Zhigang asked about a C language interface to SCL
• There is low performance interface available that is used by LabVIEW and Python to access SCL on NT
• Ric requested clarification of the need in an e-mail
• [Post meeting notes]
1. We don’t provide a VxWorks development license with the test stands
2. Deliverables to I&T are in the form of SCL scripts, not C code
• Progress made on LabVIEW/Embedded system connection performance issues
• taskDelay(1) replaced with padding in Curt’s driver code to cover electronics settling time
• Cost to call Curt’s functions is now ~100 uSecs
• Need to know settling time requirements for all situations
• Byron pointed out that there is a DAC that will cause trouble
• Found a taskDelay(1) in SCL RTE which is invoked for many, but not all, SCL script lines. Trying to resolve this with ICS.
• Logging mechanism for informational messages
• Need to work out calling structure
• Ric will work out a proposal
• Everyone is invited to contribute to the proposal
• This is not a trivial problem and will take some time to solve
• Report generation
• Similar in complexity to the Message Logging problem
• Goddard/ACD – Connie
• Slow response when accessing GARC/GAFE registers
• Successful register updates require two writes
• Trying to understand the issue with ACD’s electronics folk
• Post meeting notes:
1. Perhaps they’re seeing timeouts from Curt’s driver routines? Not obvious on writes. Reads return an error code
2. Selim sees the same effects, but only once, immediately after a power cycle of the electronics
• The other two test stand workstations have been upgraded to the P01-02-00 release and appear to be in good shape
• Have SBC, but no COMM card and no VME crate for these systems
• COMM cards being manufactured [Post meeting note: Mike reports that the new cards have arrived at SLAC. They need some touch-up work and testing.]
• VME crate requests go to Gunther
• Selim reported on Alicia's work on the MS Access configuration database
• A database schema has been worked out
• SCL loading needs to be implemented
• Byron asked about speed of Access access
• Currently NT only solution
• Working on bulk load of VxWorks SCL db
• No performance numbers available yet
• Eduardo wants to discuss EGSE scripts for the Engineering Model next week
• Calibration meeting on Friday
• Mostly TKR & CAL related
• I&T/SVAC and IFCT are clients