Data Transfer Issues:
EEMC data errors involving ETOW (towers) or ESMD (all MAPMT FEE, including SMD and Pre/Post-Shower detectors) may arise in either (or both) detector or DAQ systems. In general, if EEMC is configured without problematic errors (and one can redo this as per the instructions below to double check, or if continuing errors), the problem is often with some aspect of DAQ and one should try the DAQ recovery procedures.
From the detector side:
Data from ETOW and ESMD are separately stored and then sent to DAQ from respective data collectors located in crate #91 in the EEMC racks at the WAH west wall.
For some types of errors seen at DAQ, a re-download of the data collector FPGA's may help:
To download FPGA's:
type command "dtdc" [Caution: download proceeds through MVME processor located in VME crate #91 along with the data collectors; pointer to CPU is given by eemc-sc window startup (XDATDIR should be mini).
If processor is "unavailable", may need to reset crate #91 (e.g., via CANBus) then wait several minutes for CPU to reboot and connect. Then try dtdc again].
From DAQ side: