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Calibration Procedures



PPM: Energy, BCID and Timing Calibration


May not be required/doable for the slice test? Requires Calo calibration systems - though analogue input of some kind will be available?


Can be done one PP/ROD crate at a time (but note orthogonal division of PP and Calo partitions).



PPM-CPM/JEM Timing and Connections


Needs coherent events read from PP RODs and CP/JEP RODs.



CP and JEP Backplane Checks


Can be done one ROD crate at a time.



CMM-CTP Transmission Checks


Needs events from at least two ROD crates.



Trigger Functionality


Needs coherent events from all available ROD crates.


Performance? For test data, rate will be limited by the speed of loading new test vectors.


Load 128 slices in all PPM channels. Run 8 L1As then stop triggers. CTP deadtime then gives 88us to load next 128 slices in 64 channels in 16 PPMs per crate (about 128kb/crate).


Q: for final system, if we could run at max L1 rate, can we use custom level 2 algorithm to check expected outputs?


next up previous
Next: Calibration via RODs or Up: l1soft_1102_daqplan Previous: Database
Murrough Landon (m.p.j.landon@qmw.ac.uk)