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Team A: VME+1/[4-9] (ME+1 far side)

Team A: VME+1/[4-9] (ME+1 far side). Goal: Determine synchronization parameters good enough to take data See https://cmsdaq.cern.ch/elog/CSC/3014. Team A: Nick Kypreos (Florida), Shih-Chuan Kao (UCR). Communication phase parameters measured for VME+1/[4-9].

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Team A: VME+1/[4-9] (ME+1 far side)

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  1. Team A:VME+1/[4-9] (ME+1 far side) • Goal: Determine synchronization parameters good enough to take data • See https://cmsdaq.cern.ch/elog/CSC/3014 Team A: Nick Kypreos (Florida), Shih-Chuan Kao (UCR) G. Rakness (UCLA)

  2. Communication phase parameters measured for VME+1/[4-9] Values measured for ALCT  TMB, CFEB  TMB, and RAT  TMB crate communication. All OK except: • VMEp1_5…  • +1/2/14, slot 14 all CFEBs not OK  • +1/1/13, slot 4, ALCT tx/rx not OK • VMEp1_6…  • +1/1/17, slot 6, CFEB0 not OK (likely cable)  • +1/2/15, slot 8, CFEB4 not OK (likely cable) • VMEp1_7…  • +1/3/20, slot 20, ALCT tx/rx not OK, all CFEB not OK (suspect fuse) • VMEp1_8…  • +1/2/21, slot 8, CFEB3 not OK (likely cable) Need to run with TMB default configuration (empty userPROM) in order to perform CFEB rx delay scans… G. Rakness (UCLA)

  3. chamber CFEB TMB   ALCT -----------   ----    ---- ----+1/2/9      -1      -1    -3+1/2/10      0      -1    -3+1/2/11     +1     -1    -2+1/3/9      +1      -1    -2+1/3/10     +1      -1    -3+1/3/11      0      -1    -2+1/1/9       0      -1    -2 Synchronization L1A delay values: Difference between measured values and predicted values... • To expedite Local Run… Choose to use predicted values modified by… • tmb_lct_cable_delay = tmb_lct_cable_delay_predicted • tmb_l1a_delay = tmb_l1a_delay_predicted  1 • alct_l1a_delay = alct_l1a_delay  2 G. Rakness (UCLA)

  4. First look at TMB and DDU counters • HV on with “radioactive trigger” • 1 layer ALCT*1 layer CLCT • TMB counters • TMB and ALCT L1A delay parameters OK • Recall: 7bx wide windows… • DDU counters • CFEB-L1A timing needs adjustment on several chambers • DAV bits for CFEB and ALCT for many chambers • 52 LIVE INPUT CHANNELS TOTAL found on DDUs  • 53 expected (+1/3/20 masked out…) Expect ~morning to address timing issues, ready for Local Run tomorrow afternoon (?) G. Rakness (UCLA)

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