Agenda

Announcements -
Review of minutes from 28-Oct-2009 meeting
Update from DAQ Group - Dave A
Linux ROC development - Bryan
Brief report from EPICS collaboration meeting and ICALEPCS 2009 conference - Elliott
Coil test update - Elliott
Other electronics and trigger status reports - Chris, Ben, Ed, Alex, Dave

Time/Location

1:30 PM Wed 11-Nov-2009 CC F326

1:30 PM Wed 9-Dec-2009

11nov2009_moffit.pdf Attendees: Elliott W, Simon T, Mark I, Alex S, Bryan M, Carl t, Dave A, Ed J, Eugent C.

DAQ Update

Dave A discussed the current status of and recent project in the JLab DAQ group:

DAQ goup now fully staffed, recent hires Bryan Moffit and William Gu.
Have enough staff to meet 12 GeV obligations and deliver CODA 3 on time.
Bryan recently working on Linux ROC, William working on TI and TD boards.
CODA 2.6.1 release soon, COOL-based run control state machine.
- uses latest cMsg and AFECS
Haven't started working on farm software yet.
Carl is working on fixing remaining cMsg VxWorks bugs.

Linux ROC

See Bryan's slides (link above) for more details;
Using the GE FANUC dual-core VME board.
Has 4 GB flash memory, Tempe chip (interface to VME).
Supports 2ESST.
Has longer interrupt latency and DMA setup than the Motorola PowerPC board, but this is not an issue.
Bryan had to modify the GE-supplied software to get better performance, including the Tempe libs.
The F1, FADC, and TI libs now work with the GE FANUC board.
Worked on scheduling, latencies, DMA speeds.
Improving core mgmt for threads gained 20 micro-sec.
Not using any version of real-time Linux, only real-time extensions.

ICALEPCS 2009

Elliott reported on the EPICS collaboration meeting and ICALEPCS 2009 conference held in Kobe, Japan. See his slides (link above) for details.

Coil Test

Elliott gave a brief update on the status of the coil test.

Steady progress in controls, but problems being found in the coils themselves.
Solenoid review coming up next week.
Should be able to use QWeak area nearby.
New tech hires helping a lot!
Most instrumentation ordered, a few items left.
Incorrect wire used for cryo sensors, must be replaced in all four coils.
Planning to work on three coils for other reasons so replacing wire not a problem.
Will have to open coil 4 just to replace wire.
Coil test schedule now extending into late 2010 or beyond.