Difference between revisions of "October 1, 2017"

Revision as of 09:26, 2 October 2017

Loose ends from the Spring 2017 run

• 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 being

tested by Hai and Ed (so far successfully)

- 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 crates)

• Topics for summer

Understanding (improving) performance at high rate

- busy distribution (possible crashes at high data rate)

- performance of CAEN TDCs

Emulation of the trigger algorithm

Implementing SSP/GTP readout (Ben)

calibration constants for fadc250 (new firmware)

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)

- test with Play Back

F1TDC firmware modification

- (suppression headers)

L1 trigger simulation