The GltSim follows the hardware closelyIt attempts to match the spatial and angular location of calorimeter towers and DCH tracks. This results in 24 trigger lineswhich are sent to the FcsSim to issue the L1Atime
The 9 primitives are:
A B Ap M E G X Y U
The Match and Combine Objects are:
AM BM ApM BMX EM A* B* M* G*
4
The Clocks
Emt Clk4 ->Clk8
Glti
TSF Clk4 ->Clk8
Blt Clk8
Zpd
Clk8 ->Clk4
Clk4 ->Clk8
Clk8 ->Clk16
5
Glt LUT Configuration
The Glt is configured from the DB for more than2 years now1) L1GltConfigP_001 2) LineConfigP New code to generate the lut is moved to L1GltOnlineand used by the online/offline(sim) Online:The Glt Lut is generated on the fly using theBase lut bin file & the config pars from the DB->xtcOffline:Base lut is generated on the fly & the config parsfrom the DB
6
Glt Lut
Luts were tested on and offline the results are identical
Plan: have the base lut online generated on the fly as in the offline
We have two keys with PTD/ZPD configurationThe keys are Main problem this is private code since commitingWill create conflicts it depends on the L1DctTeststandcode
26
Tcl parameters
•The input delays in the Glti are set with tcls parameters and a switch depending if ZPD/PTD are going to be used
•The time adjustment for the the DAQ window
27
Conclusion/Plan
• The code will be tested against the
Glt calibration in the teststand• Final 1 tick aligment of the Glt Blt inputs