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event_filter [2015/10/31 14:14] pereira [TPPACs packet] |
event_filter [2015/10/31 17:02] pereira [TPPACs packet] |
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| 0 | 0 | 0 | 0 | X | X | X | X | X | X | X | X | X | X | X | X | | | 0 | 0 | 0 | 0 | X | X | X | X | X | X | X | X | X | X | X | X | | ||
| 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | | | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | | ||
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+ | ==== Hodoscope packet ==== | ||
+ | The Filter parses the [[Detectors# | ||
+ | [[S800 USB DAQ data format#Tag 0x7165: Phillips 7164 ADC module for hodoscope energies 0 through 15|Phillips 7164 ADCs]] and re-formats the data in three packets, two with the energies of the two groups crystals (from 1 to 16 and from 17 to 32), and the third one with the hit pattern recorded in the [[S800 USB DAQ data format#Tag 0x4448: LeCroy4448 coincidence register module for hodoscope hit pattern|LeCroy 4448 coincidence-register module]]. | ||
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+ | Each of the two first packets look like: | ||
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+ | * **Packet Length** (self-inclusive) | ||
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+ | ^ A number from 5 to 325 ^^^^^^^^^^^^^^^| | ||
+ | | 0 | 0 | 0 | 0 | 0 | 0 | 0 | X | X | X | X | X | X | X | X | X | | ||
+ | | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | | ||
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+ | * **Packet Tag** | ||
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+ | ^ 0x58B0 | ||
+ | | 0 | 1 | 0 | 1 | 1 | 0 | 0 | 0 | 1 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | | ||
+ | | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | | ||
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+ | * **Hodoscope Sub-packet " | ||
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+ | ^ 0x0000 or 0x0001 | ||
+ | | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | X | | ||
+ | | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | | ||
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+ | where 0x0000 labels the energy sub-packet of the first group of crystals from 1 to 16, and 0x00001 labels the second group of crystals from 17 to 32. | ||
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