Difference between revisions of "DAQ Testing/20181106"
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* Channel 0 is a twisted pair, takes Tstable and triggers the entire DAQ based off of this | * Channel 0 is a twisted pair, takes Tstable and triggers the entire DAQ based off of this | ||
** Tsettle's falling edge is chosen as the t=0 reference point for all diagrams (since it indicates the beginning of a new Helicity window) | ** Tsettle's falling edge is chosen as the t=0 reference point for all diagrams (since it indicates the beginning of a new Helicity window) | ||
| − | *** Tsettle has a glitch, where a substantial fraction of the signals are smaller in magnitude (from 40 us onward, for a given messed up pulse) - see [[:media:Timing-Injector-TsettleWiggle. | + | *** Tsettle has a glitch, where a substantial fraction of the signals are smaller in magnitude (from 40 us onward, for a given messed up pulse) - see [[:media:Timing-Injector-TsettleWiggle.JPG|here]]. Is this an issue? A symptom of a bigger problem? This NIM crate was found to have serious problems a few months ago, are they back? |
*** 500 us wide in standard running mode (currently used by Hall B runnning) | *** 500 us wide in standard running mode (currently used by Hall B runnning) | ||
** Channel 0's Tstable is the complement of Tsettle and it's falling edge indicates when it is safe to begin integrating HEL dependent data | ** Channel 0's Tstable is the complement of Tsettle and it's falling edge indicates when it is safe to begin integrating HEL dependent data | ||
Revision as of 13:24, 7 November 2018
Back to Main Page >> DAQ Documentation Portal >> DAQ Testing >> DAQ Commissioning Notes
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November 6th, 2018 Testers: Bob, Cameron
Goals
- Update Injector DAQ Timing Diagrams (see all in DAQ Layouts)
- TI (External gated standalone mode input)
- TI CRL outputs (overall busy out, vqwk wait, vqwk read, vqwk clear)
- QWeak ADCs gate
- SIS3801 Scaler
- STR7200 Scaler (needs spare)
- FLEXIO Scaler
Tests
TI ext standalone trigger mode (not receiving Trigger Supervisor trigger signal)
- Channel 0 is a twisted pair, takes Tstable and triggers the entire DAQ based off of this
- Tsettle's falling edge is chosen as the t=0 reference point for all diagrams (since it indicates the beginning of a new Helicity window)
- Tsettle has a glitch, where a substantial fraction of the signals are smaller in magnitude (from 40 us onward, for a given messed up pulse) - see here. Is this an issue? A symptom of a bigger problem? This NIM crate was found to have serious problems a few months ago, are they back?
- 500 us wide in standard running mode (currently used by Hall B runnning)
- Channel 0's Tstable is the complement of Tsettle and it's falling edge indicates when it is safe to begin integrating HEL dependent data
- 500 us after Tsettle (as expected)
- Tsettle's falling edge is chosen as the t=0 reference point for all diagrams (since it indicates the beginning of a new Helicity window)
- Timing Diagram, Injector, TIR ext mode
