October 28th 2021¶

• Updates
  • VMM
    • issue with connector tolerance - solution using fixed and floating connectors
    • send power board end of week
    • gave VMM Eval board to Xinzhan
    • Got 2nd VMM, working on software to
    • Radioactive source area
    • ArCO2 gas
    • can look at signal from VMM
    • Friday to Monday in UVA - to setup X-ray
    • VERSO : could use
  • APV
    • working in Hall A 5.2 KHz 6 samples
  • FADC
    • driver for ethernet adapater not loaded correctly - and should work - might need new kernel
  • VTP
    • New firmware is ready for multicrate ECAL trigger testing (fixed a bug with it early this week)
    • Trying to get solidvtp1 and 2 root mounts to be same as Hall A VTPs. solidvtp1 seems to mount it now, solidvtp2 doesn't
    • These VTPs we're (kernel) crashing often before, so this is why I want to run the same mounts as the Hall A VTPs (where we don't see this). Not sure if the issue will be gone after this mount change - if not I'll check if Bryan can figure it out and probably we can run as-is if we can at least get the VME crates online so we can remotely power cycle to recover

• new funding request
  • will test radiation hardness next week
  • new bPOL supply, GBT ordered
  • might need to switch to lpGBT and VTRx+
  • TMR commercial software - evaluate cost
  • filtering of VMM : ferrite saturates - air core inductors are big - might be better if far from supply - could use linear regulator -
  • TDIS : flex circuit board to get signal out