SoLID DAQ » SoLID preRD

h1. 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