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Commissioning and Testing
- Trigger Scheduler and Context:
The following table gives a representation of the Trigger Scheduler table and TAM Context information for the LAT muon runs to be taken during Commissioning. Those muon runs are designated by test cases LAT-70x (flight configuration on ground) and LAT-71x (muon calibration). The scheduler is shown in a form compatible with the online tool to generate trigger configurations, where the trigger engines are specified in hierarchical order.
Engine | external | solicited | periodic | CNO | CAL-HI | CAL-LO | TKR | ROI | Zero-supp | Ranges | Prescale | Marker | Inhibit |
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0 | 1 | x | x | x | x | x | x | x | enabled | 1-rng | 0 | 0 | no |
1 | 0 | x | x | x | x | x | 0 | 1 | enabled | 1-rng | 0 | 0 | no |
2 | 0 | 1 | x | x | x | x | x | x | enabled | 1-rng | 0 | 0 | no |
3 | 0 | 0 | 1 | x | x | x | x | x | disabled | 4-rng | 0 | 0 | no |
4 | 0 | 0 | 0 | 1 | x | 1 | 1 | 1 | enabled | 4-rng | 0 | 0 | no |
5 | 0 | 0 | 0 | 1 | x | x | x | x | enabled | 1-rng | 0 | 0 | no |
6 | 0 | 0 | 0 | 0 | 1 | x | x | x | enabled | 1-rng | 0 | 0 | no |
7 | 0 | 0 | 0 | 0 | 0 | x | 1 | 0 | enabled | 1-rng | 0 | 0 | no |
8 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | enabled | 1-rng | 0 | 0 | no |
9 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | enabled | 1-rng | 0 | 0 | no |
10 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | enabled | 1-rng | 0 | 0 | no |
11 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | enabled | 1-rng | 0 | 0 | no |
12-14 |
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| 0 | inhibit |
15 |
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| 5 | no |
In this table, 1 = asserted, 0 = not asserted, and x = "don't care". The Contrigurator evaluates the rule for engine 0 first, and given the rule above assigns 128 combinations of trigger conditions to engine 0. It then evaluates the rule for engine 1, and from the remaining 128 unassigned combinations, it assigns the 32 combinations that are consistent with the rule to engine 1. This continues on through engine 11, where the last of the 256 possible combinations -- in this case, no conditions asserted -- is mapped to engine 11.
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