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• Matt's timing system firmware is available in GitHub here:  https://github.com/slaclab/l2si-drp/releases/tag/v4.0.2
• When only one datadev device is found in /dev or /proc when two are expected, the BIOS PCIe bifurcation parameter may need to be changed from "auto" or "x16" to "x8x8" for the NUMA node (slot) containing the PCIe bus holding the KCU card
  • If the BIOS PCIe bifurcation parameter seems to be missing (was the case for the SRCF DRP machines), the BIOS version may be out of date and need updating.  See Updating the BIOS.
• kcuSim -t (resets timing counters)
• In some cases has fixed link-unlocked issues: kcuSim -T (reset timing PLL)
• kcuSim -s (dumps stats)
• kcuSim -c (setup clock synthesizers)
• Watch for these errors: RxDecErrs 0 RxDspErrs 0
• reload the driver with "systemctl restart tdetsim"
• currently driver is in /usr/local/sbin/datadev.ko, should be in /lib/modules/<kernel>/extra/
• reloading the driver does a soft-reset of the KCU (resetting buffer pointers etc.).
• if the soft-reset doesn't work, power-cycle is the hard-reset.
• program with this command:  "python software/scripts/updatePcieFpga.py --path ~weaver/mcs/drp --dev /dev/datadev_1" (datadev_1 if we're overwriting a TDET kcu, or could be a datadev_0 if we're overwriting another firmware image)

Using TDet with pgpread

Need to enable DrpTDet detectors with "kcuSim -C 2" or "kcuSim -C 2,0,0" where second argument is sim-length (0 for real data) and third arg is linkmask (can be in hex).  first arg is readout group.  use readout group >7 to disable,  e.g. kcuSim -C 8,0,0xff to disable all

Fiber Optic Powers

To see the optical powers Matt says we should run the software in psdaq/psdaq/pykcu (the second argument is a base name for exported epics vars).  Same commands work for hsd kcu1500.  NOTE: cpo thinks that we may have to use datadev_1 here.  I tried with datadev_0 but received an epics timeout from pvget. NOTE: Fiber power readout only works with QSFP's not the "SFP converter" modules we typically use for tdetsim kcu's.

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