October 1, 2017

Loose ends from the run in Spring 2017

• Communication issues (missing acknowledgments) between TI and TD

- new firmware for TI (tip76) provided by William

(installed on FCAL crates)

- new firmware for TD (tdp 73), includes some debugging features

- initially tested at high rate, have to continue with more tests

• F1TDC initialization issues (32 ns time shift)

- reproduced using the test stand (Ed)

trying to reproduce/fix using BCAL cosmic trigger (work in progress)

• Calibration constants for fadc250 (new firmware)

- new code for the clock distribution (Ben) has been implemented and is being

tested by Hai and Ed (successfully so far)

- additional ADC code will be provided by Ben shortly

- when ready, the new version will be tested using a single crate setup

(consider to install on some Hall-D crates, if successfully tested)

• Performance of CAEN TDCs at high rate

- slows down readout at high trigger rate (R > 70 kHz)

we don't expect to run at these rates during Fall 2017/ Spring 2018

- prepared setup for testing (TOF/Trigger crates)

Other topics

• Implementing SSP (GTP) readout (Ben)

- Ben is working on the new version of SSP now

- waiting for the VME readout function from Brian

• Further optimization of the L1 algorithm for high-lumi runs
• TOF trigger

- already implemented (FDC alignment, hi-pt meson production)

- may require some modification (specs, Iliya)

- test with Play Back, and beam tests

• F1TDC firmware modification

- (suppression headers)

• L1 trigger simulation

- version 0 of the simulation is available

- implement corrections in Geant for MIPs and hadronic showers

initial implementation in the simulation (v1), adopt code from

hyCal (Iliya, Alex)