Timing Week Ahead
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David Cussans is inviting you to a scheduled Zoom meeting.
Topic: DUNE Timing System Week Ahead
Time: Jan 17, 2022 11:00 AM London
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Meeting ID: 656 1190 7988
Passcode: 959532
Present: David Cussans(DGC), Diana Antic (DA), Dennis Lindebaum(DL),Jon Sensenig(JS), Sudan P, Jim Mateyack (JM), Stoyan T, Aaron B., Jean-Pierre Martin (JPM)
Update on plans for NP04 - DGC showed some slides with his assumptions about ramp-up to NP04 (see attached slides). Corrections from DL.
Update on iPRR - DGC showed the "charge letter" and invited comments. DGC will check with Alessandro Thea the state of recommendations from timing system FDR.
Technical Coordination meeting - We are asked for a short presentation on preparation for iPRR. DGC will prepare and circulate tomorrow.
Round Table.
ST - Started debugging MIB MMC in uTCA crate. No communication with crate with either main MMC code or the image downloaded code. With the MIB plugged into the crate, the AVR programmer didn’t see the 3.3V. Possibly the uC is not getting power.
SP - No time for DUNE work in last week. Will have a couple of hours tomorrow to work on iPRR documentation.
DL - Documenting what timing hardware is where. No new failures in soak test ( except for one endpoint lost lock. Happened at the same time that DA and DGC were moving equipment about ). GIB - MIB RTT measurement still unreliable.
JS - No time to work on GIB firmware in last week. Hopefully this week.
AB - Investigating routing of timing fibres etc. ( DL pointed out a spreadsheet that exists showing mapping)
JM - He and Kevin Fahey have "signed off" on QA/QC plan. DGC expressed thanks and said that it would be passed onto new technical lead when one is appointed.
DGC - Has been working through detailed comments from Terri Shaw and Linda Bagby about electrical safety of AFC. ( e.g. power trace/via current handling. Calculating power pin de-rating from Samtec datasheets and FNAL guidance ).
JPM- Reported on progress with precision phase measurement. Replicated the phase measurement circuit with 90-degree clock to be able to work around 0 and 180 degree non-linearity. Intermittent problems with I2C ACK failures. ( DGC urged JPM to post details to #timing-developers the next time faults occur )
DA - Chasing customs clearance of units shipped to CERN and LIP. Documenting what has been shipped where. Working on OKS. Still struggling to get a clean build. Asked Gordon Crone for some "pair programming" time.