Search/Navigation:
Related:
SLAC
/EPP/HPS Public
Jefferson Lab/Hall B/HPS Run Wiki
S30XL-LESA/LDMX
Fibers were tested in fixed locations on the RTM. To ensure that things are working as expected from this table, they should be placed in the same locations on the RTM according to the 2021 mapping.
| Fiber / RTM combination | Status |
|---|---|
| A | OK |
| B | OK |
| C | OK |
| D | OK |
| E | OK |
| F | OK |
| G | ? |
| H | Possible issue |
QA of Flange Board ↔ FE0Bs
| FEB | Flange Board (HW) | Flange Channel | I At Boot (AnaN, AnaP, Digi) | I Mod ON | I Mod ON + Config | Ctrl Ch (dpm / ch) (1 is top cob) | Fiber (ctrl / Data) | jTag OK | Feb Address | Data Taking | Comment |
|---|---|---|---|---|---|---|---|---|---|---|---|
| L0-1t | 2 | 2 | 0.242 - 1.212 - 1.250 | 0.292 - 2.317 - 1.392 | 0.292 - 2.833 - 1.322 | 0 / 3 | D / H | Y | 0 | OK | |
| L2-3t | 3 | 0 | 0.256 - 1.248 - 1.239 | 0.317 - 2.319 - 1.314 | 0.313 - 3.112 - 1.313 | 0 / 8 | D / H | Y | 2 | OK | |
| L5t | 0 | 0 | 0.236 - 1.216 - 1.287 | 0.272 - 2.101 - 1.334 | 0.271 - 2.715 - 1.334 | 1 / 5 | A / E | Y | 6 | OK | |
| L6t | 0 | 1 | 0.249 - 1.222 - 1.362 | 0.313 - 2.743 - 1.434 | 0.308 - 3.539 - 1.434 | 1 / 4 | A / E | Y | 8 | OK | |
| L4b ( In EPICS is L4t) | 2 | 1 | 0.248 - 1.241 - 1.248 | 0 / 4 | C / G | Y | 5 | Hybrid 1 and Hybrid 3 give check transaction errors at the power up. Those correspond to Ly6 hybrids in the test setup..Probably broken feb? Also noticed two HV pins missing. | |||
| L4t ( In EPICS is L4b) | 1 | 0 | 0.252 1.153 1.374 | 0.307 - 2.8755 - 1.448 | 0.304 - 3.564 - 1.449 | 1 / 8 | B / F | Y | 4 | OK | |
| L5b | 1 | 1 | 0.246 - 1.169 - 1.243 | 0.306 - 2.242 - 1.346 | 0.302 - 3.063 - 1.321 | 1 / 7 | B / F | Y | 7 | ||
| L6b | 1 | 2 | 0.248-1.199-1.278 | 0.307 - 2.705 -1.345 | 0.304 - 3.525 - 1.348 | 1 / 6 | B / F | Y | 9 | ||
| L0-1b | 2 | 0 | 0.241 - 1.284 - 1.313 | 0.293 - 2.235 - 1.394 | 0.293 - 2.931 - 1.394 | 0 / 5 | C / G | Y | 1 | ||
| L2-3b | 3 | 1 | 0.248 - 1.122 - 1.195 | 0.308 - 2.324 - 1.267 | 0.305 - 3.153 - 1.267 | 0 / 7 | D / H | Y | 3 | NO | Timeouts on DPM |
Current Issues with Back-end.
List of issues we observed during local data taking relative to the Back - End.
NOTICE!!! The dpm numbers in the daq map after 7 are off by one. Example: DataDpm[13] in the DAQ Map is hostname dpm14.
1)
| RCE | Data path | Issue |
|---|---|---|
| Dpm[6] | 0 | Feb3 (L2-3b) connected. Observed timeout waiting for data. Observed TriggersOut lagging wrt TriggerIn during local data taking (96 vs 891 expected). Doesn't lose sync. |
| Dpm[6] | 1 | Feb3 (L2-3b) connected. SampleExtractor shows triggers out lagging wrt Trigger In. Doesn't lose sync. |
Attempts to diagnose the error:
- Swap fiber H with F (changes channels in the RTM).
- Reset COBs to change DaqMap. Now Feb3 is on dpm13 and dpm14. Observed timeout waiting for data.
- We moved the hybrids to top FEBs. (L01-t and L23-t). Reset COBs. We observed the same issue on L23-t => possibly related to the hybrids or flange board.
- Moved Layer0 modules on L23-t FEB. That FEB is on flange 3. Copied updated config with module swap to rce-test-eel-swap.yml. Same errors. We suspect the flange board but we see no errors on the dpm data links. So that's odd.
- Moved Layer0 modules on Ly01-t FEB. Worked fine. Also tested hybrid L23 on L23-t Feb: all OK
- Tested L23 on FEB L23b and saw timeout on data dpms.
- Changed flange-board from 3 to 2. Saw timeout on data dpms. Suspect FEB
- Changed data fiber from F to E. Saw timeout errors on data dpms. Observed increasing RxFrame and RxCell Error counts during data taking on dpm[9] data link 1.
Test outcome: we think that FEB 23B (SN 14) has some issue we need to discuss with Ben.
Situation at the end of the run: Link errors on dpm[9] Pgp link 1. No other apparent issue observed.
Overview
Content Tools