L2 Status

1
L2 Status

• James T. Linnemann
• MSU
• PMG
• September 20, 2001

2
Alpha

• First Production 4-6 fully work break/fix
  about 1/week
• Second Production
• Pre-production boards work
• DMA fixes incorporated in layout
• Learned can successfully replace CIA BGA (better
  than unreliable socket!)
• new supplier for raw boards, better assembly
  (failures diagnosed site visits)
• 11 more being built now 5-7 arrive Sep 26
  remainder Oct 5
• PIO to Alpha not working (firmware) early
  October
• Need 15 for nominal system (7 for test stand)
• concentrate on 1 Alpha/crate firstOK for low
  rate
• Add processors to meet throughput demands as
  available
• Beta replacement
• prototype December 01, production Summer 02

3
MBTworkhorse I/O card

• cards in hand
• Before install stable SCL firmware Sept/Oct
• firmware all written being debugged (good
  turnaround)
• Scl_init sequence L1, L2 busy (easier)
• Multi-card broadcast need testing at FNAL
• 128 bit fanout needs testing at FNAL with
  Edmunds Oct
• Some marginal timing being chased
• Results write to Global needs to be
  re-integrated
• tweaking output amplitude
• Monitoring functions need to test at FNAL

4
FIC G-link receiver(all crates but muon)

• FPGA code being tweaked
• Some vme problems remain
• commissioning modes only progress being made
• G-link data problems fixed (tested BER lt E-10)
• Need pin reassignment for monitoring FPGA
• Will swap for faster chip (socketed)
• FPGA compiler problems probably resolved
• Fermilab/ESE support for commissioning
• Met last week with Saclay experts
• Consult on design fixed 3 dead channels

5
L2 Muon Cards

• CIC (L2Mu input card) installed inputs
  cabled
• SLIC (L2 Mu processor card) ready to cable up
• Algorithms being downloaded already
• SFO (fanout) all but 2 at Fermi
• Needed by Muon system, and test stand
• Very useful for commissioning
• May have other uses during running
• All cards work in most important modes
• For one mode, have to hand-select cards
• Only need 2 working in 112 fanout mode
• Investigating why only half do, but half of 25 is
  plenty
• why error rate different in Nebraska?

6
Miscellaneous Interface Hardware

• 16 to 128 bit mux add-on to MBT (UMd)
• Returns L2 trigger mask to L2HWFW Sep/Oct
• L1HWFW to L2 Global (via FIC) (MSU)
• Optical Split L1 trigger mask
  Aug/Oct
• dummy content fixed event ID
• Monitoring of Alphas by L1 Scalers (MSU)
• Passive cable formatting card Oct

7
CommissioningAt Last

• L1SCL-MBT-Alpha-VBD-L3 milestone met
• One channel data, real frame software, in MCH
• Need to verify format from SAM
• Muon system has seen real inputs-CIC-SLIC
• L1 format needs correction
• Scint format OK but L2timing interfere errors
• MDT format OK
• PDT unformatted October?
• Current tests
• SCL_INIT for MBT-Alpha (for permanent MCH
  running)
• Add 2nd channel of data (FIC-MBT-Alpha-VBD-L3)
• real algorithms into SLIC timing Fwd Mu already
• Muon 2nd or 3rd input CIC-SLIC-MBT-Alpha-VBD-L3
  
• One event pushed through STT prototype vertical
  slice
• FRC, STC, TFC CTT roads, SMT clusters, fit

8
Summary

• Commissioning is underway in earnest
• Some real inputsneed more to do physics
• Mu, cal, ctt, cps is probable order
• Most hardware in hand
• Remaining alphas soon, I hope
• Final cabling in October
• Firmware written commissioning it now
• MBT, Alpha, FIC
• Crucial scale-up tests in coming weeks
• All hardware in crates
• Multiple inputs
• Algorithm downloads coming
• Muon started last week continue thru shutdown
• code running in simulator already

9
Arrival of L2 Inputs

• When inputs steadily available (subset, full)
• L1 Trigger Mask to Global (August, October)
• Cal (September?, November?)
• Muon
• Trigger (L2 software not tested) (June, November)
• Detector (August,October?)
• CTT,CPS (October,November)
• FPS (November,December)
• COOR programming September?

10
Online Software Plans

• ?Event data flow late Aug
• Worker with filter code Sept
• Multi-alpha (as available) Oct/Nov
• interrupts for speed as needed Dec/Jan
• Coor script downloading via TCC Late Sept
• Till then, configure from hand-edited file
• Online and in TSIM
• Data Flow Monitoring test Sept/Oct
• Errorlogger to screen/S.E.S. Oct/Dec?
• Global Preprocessor Oct-Nov
• FILTERING! (if have enough inputs)
• Verification online vs. TSIM
• 1st version running now testing data capture
• Needs pretty good data to be useful Oct/Nov?