| ID |
Date |
Author |
Subject |
|
102
|
Wed Nov 27 16:33:50 2019 |
NH | New Bias & Waveforms |
HV core (-160 V) now attached to bottom 3 FEEs (with grounded kapton)
DSSDs bias OK, leakages unchanged
No appreciable change in waveforms
Some estimates
aida01/aida05/aida09 VHF noise: 5 channels frequency = 10 MHz ?
All FEEs:
Oscillation at ~25-35 channels = 1.4 to 2 MHz ?
Varies a bit with each FEE.
No obvious issue with upper FEEs unsure why 10 MHz is present - fee09 has been replaced but showed it before as well.
Lower frequency noise on every FEE may be ground noise from e.g. switching PSU?
No more access to S4 to check thoroughly again.
|
| Attachment 1: waves_new_odd.png
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| Attachment 2: waves_new_even.png
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106
|
Wed Dec 11 10:58:52 2019 |
NH | Initital Dec. Analysis |
Fig 1: 2D hit pattern of each AIDA DSSD for MBS run 24 (40Ar primary beam, centred)
Low statistics in DSSD2 partly due to low energy deposition
Fig 2: Position according to TPC42 (ca. 2 metres before AIDA)
Fig 3: 2D hit pattern of DSSD 1 for MBS run 37 (34Si fragments, no PID gate)
-
Bottom part of AIDA noticably cut off - rotation in DSSD also noticed (not an issue)
Snout was investigated and platform was discovered to not be fully level by Bogdan using a laser level - he has adjusted it so that the AIDA snout is now level to within 1 mm.
(The beam right side was previous 4-6mm below the beam left side)
Y cut in fragment run is currently of unknown origin. Optics are being investigated
-
Fig 4: Hit pattern of 40Ar with strip offsets fixed (no missing strips)
Fig 5: Energy loss in DSSD1 of 40Ar primary beam
Fig 6: TPC 41, TPC 42, AIDA X comparison
Fig 7: " Y comparison
Fig 8-11: As above for 34Si run
Y cut unknown still.
Statistics of 40Ar file
======================================
AIDA Unpacker Analysis
--------------------------------------
First event: Fri Dec 6 05:21:42 2019
Last event : Fri Dec 6 05:26:17 2019
Duration : 274.604 seconds
--------------------------------------
MBS Events (M): 131808426 (481 kHz)
AIDA Words (W): 110608065 (403 kHz)
ADC Words (A): 36869349 (134 kHz)
ADC Decays (D): 36782621 (134 kHz)
ADC Implants (I): 86728 (316 Hz)
Info Words (F): 73738716 (269 kHz)
SYNC48 Words (S): 36869354 (134 kHz)
SYNC63 Words (s): 36869354 (134 kHz)
PAUSE Words (P): 4 (0 Hz)
RESUME Words (R): 4 (0 Hz)
Discrim Words(D): 0 (0 Hz)
Unknown Words(U): 0 (0 Hz)
Timewarps (T): 0 (0 Hz)
Dead Time (X): 0.113631 s (0.0413799%)
======================================
======================================
Individual FEE Overview
======================================
FEE | W A D I F S s P R D U T X
1 | 4383018 1461006 1439401 21605 2922012 1461006 1461006 0 0 0 0 0 0
2 | 11468351 3822783 3814577 8206 7645568 3822783 3822783 1 1 0 0 0 0.00733666
3 | 4353624 1451208 1428500 22708 2902416 1451208 1451208 0 0 0 0 0 0
4 | 8355002 2785000 2755870 29130 5570002 2785001 2785001 0 0 0 0 0 0
5 | 1133544 377848 376489 1359 755696 377848 377848 0 0 0 0 0 0
6 | 9617940 3205980 3205767 213 6411960 3205980 3205980 0 0 0 0 0 0
7 | 4385477 1461825 1460962 863 2923652 1461826 1461826 0 0 0 0 0 0
8 | 15105135 5035043 5032985 2058 10070092 5035045 5035045 1 1 0 0 0 0.0126429
9 | 37487211 12495735 12495422 313 24991476 12495736 12495736 2 2 0 0 0 0.0936512
10 | 110316 36772 36772 0 73544 36772 36772 0 0 0 0 0 0
11 | 12329904 4109968 4109763 205 8219936 4109968 4109968 0 0 0 0 0 0
12 | 1878543 626181 626113 68 1252362 626181 626181 0 0 0 0 0 0
Statistics of 34Si file
======================================
AIDA Unpacker Analysis
--------------------------------------
First event: Sat Dec 7 05:20:22 2019
Last event : Sat Dec 7 05:23:51 2019
Duration : 208.635 seconds
--------------------------------------
MBS Events (M): 148639738 (714 kHz)
AIDA Words (W): 132033086 (634 kHz)
ADC Words (A): 44011024 (211 kHz)
ADC Decays (D): 43874168 (210 kHz)
ADC Implants (I): 136856 (657 Hz)
Info Words (F): 88022062 (423 kHz)
SYNC48 Words (S): 44011028 (211 kHz)
SYNC63 Words (s): 44011028 (211 kHz)
PAUSE Words (P): 3 (0 Hz)
RESUME Words (R): 3 (0 Hz)
Discrim Words(D): 0 (0 Hz)
Unknown Words(U): 0 (0 Hz)
Timewarps (T): 0 (0 Hz)
Dead Time (X): 0.0806864 s (0.0386734%)
======================================
======================================
Individual FEE Overview
======================================
FEE | W A D I F S s P R D U T X
1 | 6814953 2271651 2255653 15998 4543302 2271651 2271651 0 0 0 0 0 0
2 | 14012582 4670860 4668280 2580 9341722 4670860 4670860 1 1 0 0 0 0.0088226
3 | 7618290 2539430 2523614 15816 5078860 2539430 2539430 0 0 0 0 0 0
4 | 8928934 2976310 2950380 25930 5952624 2976312 2976312 0 0 0 0 0 0
5 | 1631415 543805 531957 11848 1087610 543805 543805 0 0 0 0 0 0
6 | 10908021 3636007 3633830 2177 7272014 3636007 3636007 0 0 0 0 0 0
7 | 5644296 1881432 1864053 17379 3762864 1881432 1881432 0 0 0 0 0 0
8 | 14863755 4954585 4931620 22965 9909170 4954585 4954585 0 0 0 0 0 0
9 | 36745143 12248379 12244135 4244 24496764 12248380 12248380 2 2 0 0 0 0.0718638
10 | 198573 66191 66191 0 132382 66191 66191 0 0 0 0 0 0
11 | 15101900 5033966 5018830 15136 10067934 5033967 5033967 0 0 0 0 0 0
12 | 9565224 3188408 3185625 2783 6376816 3188408 3188408 0 0 0 0 0 0
All good (no deadtime issues) |
| Attachment 1: AIDA_HitDec19.png
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| Attachment 2: TPCs.png
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| Attachment 3: AIDA-fragments.png
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| Attachment 4: AIDA_XY.png
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| Attachment 5: AIDA_E.png
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| Attachment 6: TPC_41_42_AIDA_X.png
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| Attachment 7: TPC_41_42_AIDA_Y.png
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| Attachment 8: AIDA_XY_34Si.png
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| Attachment 9: AIDA_E_34Si.png
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| Attachment 10: TPC_41_42_AIDA_X_34Si.png
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| Attachment 11: TPC_41_42_AIDA_Y_34Si.png
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108
|
Wed Dec 18 02:44:27 2019 |
NH | 17.12.19, 18.12.19 |
Beam: 238U (850 MeV/u)
Fragment: 168Re
Tuning accelerator and FRS, believed since 3AM we are implanting on AIDA.
FEE issues:
One HEC in aida03 seems to be empty - LEC channel fills
aida09 has a lot of weird channels, check/load doesn't seem to fix
aida10 still no data after cable replaced
DSSD leakages OK - slightly higher now
Temps good
Fig 4: Rates 14:32
Leakages and temps good AS Before
Checking if we are implanting properly - possibly into the first DSSD at the moment
Fig 5 FRS PID
Fig 6 DSSD
Fig 7 DSSD (PID gated) |
| Attachment 1: 1812-stats.png
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| Attachment 2: 1812-leakages.png
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| Attachment 3: 1812-temps.png
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| Attachment 4: 1812v2-Rates.png
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| Attachment 5: nh_1712_zaoq.png
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| Attachment 6: nh_1712_dssd.png
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| Attachment 7: nh_1712_dssd_id.png
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118
|
Fri Dec 20 10:19:29 2019 |
NH | Alpha Analysis (Pre Run) |
======================================
AIDA Unpacker Analysis
--------------------------------------
First event: Fri Dec 13 15:34:12 2019
Last event : Tue Dec 17 08:52:14 2019
Duration : 321482 seconds = 90 hours
--------------------------------------
MBS Events (M): 1748810227 (5 kHz)
AIDA Words (W): 1748072047 (5 kHz)
ADC Words (A): 785414339 (2 kHz)
-- Decays (D): 771101846 (2 kHz)
-- Implants (I): 14312493 (44 Hz)
Info Words (F): 962657708 (2 kHz)
-- SYNC48 (S): 2012396012 (6 kHz)
-- SYNC63 (s): 2012396012 (6 kHz)
-- PAUSE (P): 2925640 (9 Hz)
-- RESUME (R): 2925667 (9 Hz)
-- Discrim (D): 1226981673 (3 kHz)
-- Unknown (U): 0 (0 Hz)
Timewarps (T): 2 (0 Hz)
Dead Time (X): 4336.67292 s (1.34896%)
======================================
Possibly one bond wire loss in DSSD 1
Possibly a few lost in DSSD 3 (X)
DSSD 2 is OK.
Will update with post run data for additional statistics |
| Attachment 1: Alphas.png
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| Attachment 2: Alphas_E.png
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120
|
Wed Jan 15 14:53:41 2020 |
NH | AIDA Noise 14.01.2019 |
Checking noise
DESPEC crate entirely offline except:
VME Crate (for VETAR2)
AIDA (All)
Figs 1-2: Waveforms (Odd/Even)
Figs 3-4: Zoomed In (Odd/Even)
Fig 5: Good Event Stats
Fig 6: Merger Rate
Noise still present, despite nothing on DESPEC.
Things to check:
Turn off VME (kills time stamps but might be OK for waveform test?)
Check floor PSU under AIDA is offline too
Not sure that other FRS systems (e.g. Ion Catcher) is offline - I think RF may be on. |
| Attachment 1: Waves_Odd.png
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| Attachment 2: Waves_even.png
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| Attachment 3: WavesZ_Odd.png
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| Attachment 4: WavesZ_Even.png
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| Attachment 5: EvtStas0xA.png
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| Attachment 6: Merger0XA.png
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121
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Mon Jan 20 14:01:23 2020 |
NH | AIDA Noise 20.01.2019 |
> Checking noise
>
> DESPEC crate entirely offline except:
> VME Crate (for VETAR2)
> AIDA (All)
>
> Figs 1-2: Waveforms (Odd/Even)
> Figs 3-4: Zoomed In (Odd/Even)
> Fig 5: Good Event Stats
> Fig 6: Merger Rate
>
> Noise still present, despite nothing on DESPEC.
>
> Things to check:
> Turn off VME (kills time stamps but might be OK for waveform test?)
> Check floor PSU under AIDA is offline too
>
> Not sure that other FRS systems (e.g. Ion Catcher) is offline - I think RF may be on.
Update with different sampling rates (in order)
10 (200 ns)
100 (2 us)
1000 (20 us)
Note that some waveforms didn't update very reliably
In particular aida11 does not seem right at large sample rates |
| Attachment 1: Odd_10_Z.png
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| Attachment 2: Even_10_Z.png
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| Attachment 3: Odd_100_Z.png
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| Attachment 4: Even_100_Z.png
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| Attachment 5: Odd_1000_Z.png
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| Attachment 6: Even_1000_Z.png
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122
|
Wed Jan 29 12:22:13 2020 |
NH | aida10 troubleshooting |
aida10 has no ASIC events when running without pulser
DSSD ribbon cable was replaced, no change
29.01.2020 - change AIDA half adapter board, no change
Swapped HV (braid) from aida10 to aida12 - no change in leakage current, now testing data...
Looks the same (no data) fig 2
Very hot channel in aida08 as well:
- Channel 104 in histogram Stat = 4.7.L fig 1
Change FEE64 card?
Any other checks possible?
31.01.2020:
Installed new FEE64 card aida10: d8:80:39:41:ba:89
Updated dhcpd.conf
System boots OK.
returned bias ground to aida10 for symmetry reasons
Firmware updated from 0x12110103 to 0x18430701
Left recording alpha data over the weekend:
See stats in fig 3
DSSD 1 and 2 look excellent (one broken strip in DSSd 1)?
aida10 still no counts?
aida09 looks very... weird as well?
aida11 and aida12 seem ok?
Detector fault? |
| Attachment 1: aida08-noise.png
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| Attachment 2: aida10-noitems.png
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| Attachment 3: Stats.png
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124
|
Wed Jan 29 19:09:51 2020 |
NH | aida10 troubleshooting |
> aida10 has no ASIC events when running without pulser
>
> DSSD ribbon cable was replaced, no change
>
> 29.01.2020 - change AIDA half adapter board, no change
>
> Swapped HV (braid) from aida10 to aida12 - no change in leakage current, now testing data...
> Looks the same (no data) fig 2
>
> Very hot channel in aida08 as well:
> - Channel 104 in histogram Stat = 4.7.L fig 1
>
> Change FEE64 card?
> Any other checks possible?
when running the pulser in 10 do all the channels respond correctly ?
what happens if you drop the shaper threshold into the noise ? |
|
125
|
Fri Feb 14 12:50:29 2020 |
NH | AIDA Noise 14.02.2020 |
Electricians changed the grounding for the DESPEC platform to a large pillar that goes deep into soil
Change in grounding was apparently successful at reducing the noise complaints in Cave C (R3B)
AIDA:
Fig 1 & 2: Waveforms (Odd/Even)
Fig 3 & 4: Waveforms Zoomed
Fig 5: Good Event Rate
Fig 6: Merger Rate: 2 M items/sec
Fig 7: HV supply (no change)
There does seem to be a modest improvement (Merger rate down from 3 million, good event rates seem *better*)
(Reminder: AIDA@GSI sends 3 items per each ADC event, so merger rate is higher)
Not sure if this is still where it should stand? |
| Attachment 1: wavesOdd.png
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| Attachment 2: wavesEven.png
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| Attachment 3: wavesOddZ.png
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| Attachment 4: stats_goodevents.png
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| Attachment 5: mergerstats.png
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| Attachment 6: hv.png
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126
|
Mon Feb 17 09:48:34 2020 |
NH | Report: aida09 Kernel Panic & Lost WR |
aida09 crashed over the weekend and automatically rebooted.
After the reboot the WR timestamp sent to the merger is in the future and hence incorrect
Reset/Setup did not fix issue
Sync ASICs did not fix issue
GSI White Rabbit control page shows a correct WR timestamp
Attach 1: ttyUSB12 (aida09 log with kernel panic)
Attach 2: GSI White Rabbit control page
Attach 3: "Collect All WR Timestamps"
Attach 4: RAW Display for aida09
WR Time Item 0x80500232 0x0de48000; Time (48:63)=0x232; Time (28:47)=0x20310; Time (0:27)=0x0de48000
WR Time Item 0x80420310 0x0de48000; Time (28:47)=0x20310; Time (0:27)=0x0de48000
WR Timestamp = 0x23220310de48000 * 10 = 0x15F541EA 8AED0000 = 2020-02-21 CET 01:01:59.699537920
c.f. "GSI page" timestamp starting 0x15F427F5
Attach 5: Timestamp shown by merger |
| Attachment 1: ttyUSB12
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| Attachment 2: GSI_WR.png
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| Attachment 3: GSI_WR2.png
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| Attachment 4: GSI_WR4.png
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| Attachment 5: GSI_WR3.png
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129
|
Fri Feb 21 09:21:10 2020 |
NH | (Early) Alpha Analysis |
Overnight alpha data
======================================
AIDA Unpacker Analysis
--------------------------------------
First event: Thu Feb 20 17:46:47 2020
Last event : Fri Feb 21 10:07:57 2020
Duration : 58869.9 seconds
--------------------------------------
MBS Events (M): 1248648 (21 Hz)
AIDA Words (W): 10222680133 (27 kHz)
ADC Words (A): 3407431088 (-15076 Hz)
-- Decays (D): 3407017078 (-15083 Hz)
-- Implants (I): 414010 (7 Hz)
Info Words (F): 6815249045 (-30146 Hz)
-- SYNC48 (S): 3407559635 (-15074 Hz)
-- SYNC63 (s): 3407559635 (-15074 Hz)
-- PAUSE (P): 614 (0 Hz)
-- RESUME (R): 614 (0 Hz)
-- Discrim (D): 128547 (2 Hz)
-- Unknown (U): 0 (0 Hz)
Timewarps (T): 79 (0 Hz)
Dead Time (X): 26.8658 s (0.04563588%)
======================================
======================================
Individual FEE Overview
======================================
FEE | W A D I F S s P R D U T X
1 | 5025 1246 1093 153 3779 1675 1675 0 0 429 0 0 0
2 | 6180 991 851 140 5189 2060 2060 0 0 1069 0 0 0
3 | 7692461404 2564028610 2564028286 324 5128432794 2564153392 2564153392 614 614 124782 0 58 26.8658
4 | 2277 642 581 61 1635 759 759 0 0 117 0 0 0
5 | 6174 1249 1010 239 4925 2058 2058 0 0 809 0 0 0
6 | 2467062 822244 822191 53 1644818 822354 822354 0 0 110 0 0 0
7 | 2484 740 701 39 1744 828 828 0 0 88 0 0 0
8 | 358445004 119481621 119069026 412595 238963383 119481668 119481668 0 0 47 0 1 0
9 | 7134 1530 1243 287 5604 2378 2378 0 0 848 0 0 0
10 | 2168031885 722677295 722677295 0 1445354590 722677295 722677295 0 0 0 0 20 0
11 | 3981 1252 1190 62 2729 1327 1327 0 0 75 0 0 0
12 | 1241523 413668 413611 57 827855 413841 413841 0 0 173 0 0 0
**** DESPECAnalysis: PostLoop
A few FEEs running "hot", maybe check. 3 had some alignment issues may need rechecking.
Timewarps somehow in aida03 and aida10 but may be code mistake - must check.
Only aida03 ran fast enough to have dead time.
aida10 shows decay data now - DSSD seems ok
Fig 1: DSSD 1D hit pattern
Fig 2: DSSD Energy
Fig 3: Single channel in aida03 that is hot
Fig 4: Channels 48-64 in aida08 are hot (wiring?)
Fig 5: Channels 17, 19 (crosstalk?) and 27, 33, 38, 39
All otehr channels quiet and OK. |
| Attachment 1: DSSD_1d_HP.png
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| Attachment 2: DSSD_E.png
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| Attachment 3: FEE3_43_Hot.png
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| Attachment 4: fee8_hot.png
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| Attachment 5: Fee10_hot.png
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133
|
Tue Feb 25 09:55:59 2020 |
NH | HV Scope Traces |
Looking at the HV bias in a scope to see if it is the source of noise especially on the p+n side
Channel 1: HV Core channel 4
Channel 2: HV Braid Channel 4
Math: Ch1 - Ch2
100V bias (100 uA leakage current for 1 MOhm)
No obvious frequency components or large frequency components?
I do not know how this compares to RIKEN or STFC-DL
Updated to put the right frequency range (misread before)
Fig 3-4: Normalish looking data
Fig 5-6: Examples of noise appearing randomly on math line
Fig 7: 1ms long trace, noise stopped appearing
Update 26.02.2020
Fig 8: Trace with all 4 HV channels off
Fig 9: Trace with only oscilloscope biased
Fig 10: Trace with braids unplugged from all 3 FEE64s (only channel 4 connected)
Things to try:
Joining clean earth & chassis ground?
Checking HV jumper?
Finding 'scope probes and testing NIM socket? |
| Attachment 1: SCRN0057.PNG
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| Attachment 2: SCRN0054.PNG
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| Attachment 3: SCRN0059.PNG
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| Attachment 4: SCRN0060.PNG
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| Attachment 5: SCRN0071.PNG
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| Attachment 6: SCRN0073.PNG
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| Attachment 7: SCRN0075.PNG
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| Attachment 8: SCRN0078.PNG
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| Attachment 9: SCRN0079.PNG
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| Attachment 10: SCRN0080.PNG
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134
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Sat Feb 29 10:56:38 2020 |
NH | Alpha Hit Pattern |
Circa 700 GB of data
A few channels in DSSD 1 missing? Otherwise seems OK |
| Attachment 1: alphas_1d.pdf
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135
|
Mon Mar 9 12:47:18 2020 |
NH | Report: Unusual AIDA Timestamp Error |
Noted using my AIDA event builder code, a timewarp was reported and I noticed the ADC event had a different timestamp LSB to the "WR" markers preceding it, which I didn't think was possible in the merger as it stands
aida event 875015fa 0f68098c | INFO 5 SYNC6348 08 015fa
aida event 8744b164 0f68098c | INFO 4 SYNC4828 08 4b164
event time: 15fa4b164f68098c
aida event c1f6851b 0f68098c | ADC 08:54 L 851b
event time: 15fa4b164f68098c
aida event 875015fa 0f68115c | INFO 5 SYNC6348 08 015fa
aida event 8744b164 0f68115c | INFO 4 SYNC4828 08 4b164
event time: 15fa4b164f68115c
aida event c1ef8238 0f68115c | ADC 08:47 L 8238
event time: 15fa4b164f68115c
aida event 875015fa 0f68115c | INFO 5 SYNC6348 08 015fa
aida event 8744b164 0f68115c | INFO 4 SYNC4828 08 4b164
event time: 15fa4b164f68115c
aida event c1f884b0 0f68115c | ADC 08:56 L 84b0
event time: 15fa4b164f68115c
aida event 8a5015fa 0f681382 | INFO 5 SYNC6348 11 015fa
aida event 8a44b164 0f681382 | INFO 4 SYNC4828 11 4b164
event time: 15fa4b164f681382
aida event c2817dc8 0f681382 | ADC 11:01 L 7dc8
event time: 15fa4b164f681382
aida event 875015fa 0f68192c | INFO 5 SYNC6348 08 015fa
aida event 8744b164 0f68192c | INFO 4 SYNC4828 08 4b164
event time: 15fa4b164f68192c
aida event c1f9849c 0f68192c | ADC 08:57 L 849c
event time: 15fa4b164f68192c
aida event 815015fa 0f681f94 | INFO 5 SYNC6348 02 015fa
aida event 8144b164 0f681f94 | INFO 4 SYNC4828 02 4b164
event time: 15fa4b164f681f94
aida event c0568084 04b6854a | ADC 02:22 L 8084
event time: 15fa4b1644b6854a
AIDA Timewarp (15fa4b1644b6854a before 15fa4b164f68192c)
Event reported errors, skipping this file...
Events: 506459240 506459240 (0 errors)
Unsure if the cause, easily handled by ignoring such events but should be "impossible" |
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156
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Mon Mar 16 07:25:24 2020 |
NH | End of Experiment |
08:25 Beam Stopped, end of S480
Tape Server stopped at R12_2097
Started again in no storage mode
Will leave compressing runs |
|
159
|
Tue Jul 7 08:04:57 2020 |
NH | Power failure in Messhuette |
Last week there was a power failure in Messhuette (FRS control room) - AIDA-3 and MBS were affected.
AIDA itself and S4 equipment is on UPS and was not shut down.
AIDA-3 has been restarted and MIDAS restarted. All seems OK
S4 conditions: 24.2 C / 33.5% RH / Td = 7.1 C |
|
160
|
Tue Jul 7 08:50:27 2020 |
NH | nnrpi2 does not boot |
MIDAS was not working properly on nnrpi2 - power cycled. Now system does not boot properly, it gets stuck trying to login claiming "PAM critical error" - probable file system corruption?
Will investigate if SD card can be checked and repaired |
|
161
|
Tue Oct 6 15:48:06 2020 |
NH | nnrpi kernel update |
FYI:
The SD card on nnrpi2 was full again causing issues, the log files in /var/log (kern.log & messages) were *huge* and filled with the same error many times a second
Oct 4 15:01:22 raspberrypi kernel: [1030048.603846]
Oct 4 15:01:22 raspberrypi kernel: [1030048.607742] WARN::dwc_otg_handle_mode_mismatch_intr:68: Mode Mismatch Interrupt: currently in Host mode
Oct 4 15:01:22 raspberrypi kernel: [1030048.607742]
Oct 4 15:01:22 raspberrypi kernel: [1030048.667755] WARN::dwc_otg_handle_mode_mismatch_intr:68: Mode Mismatch Interrupt: currently in Host mode
Oct 4 15:01:22 raspberrypi kernel: [1030048.667755]
Oct 4 15:01:22 raspberrypi kernel: [1030048.667848] WARN::dwc_otg_handle_mode_mismatch_intr:68: Mode Mismatch Interrupt: currently in Host mode
Oct 4 15:01:22 raspberrypi kernel: [1030048.667848]
Oct 4 15:01:22 raspberrypi kernel: [1030048.731753] WARN::dwc_otg_handle_mode_mismatch_intr:68: Mode Mismatch Interrupt: currently in Host mode
Oct 4 15:01:22 raspberrypi kernel: [1030048.731753]
A google issue showed that this was fixed in an update to Linux kernel, so I updated the kernel to the latest version.
now the message doesn't seem to appear so hopefully the pis won't break so rapidly. |
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162
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Tue Nov 24 13:10:42 2020 |
NH | Waveforms with frame grounded |
AIDA Frame is now grounded to platform (will add photo later)
Waveforms improved from April (c.f. https://elog.ph.ed.ac.uk/DESPEC/125) but comparison not truly fair (other systems may be offline now) |
| Attachment 1: waves_odd.png
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| Attachment 2: waves_even.png
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| Attachment 3: 20201124_164416.jpg
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| Attachment 4: 20201124_164413.jpg
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Mon Feb 1 15:19:07 2021 |
NH | AIDA Status Feb 2021 |
01.02.2021 - Four new sets of PSU, HDMI & Ethernet cables were ran from the DESPEC rack to the AIDA frame, in preparation for 4 new FEE64s.
A new 7 port USB hub has also been placed for the last few serial connections.
For the first experiment this year, we will run with a narrow AIDA configuration as in 2020. (12 FEEs)
The system has been powered up and biased successfully. To be monitored over the next few days.
A lot of the FEE serial monitors are missing, I think a hub has been disconnected from nnrpi1. This will be investigated on Wednesday.
The rack will also be grounded properly on Wednesday to investigate the impact on the noise.
A single new water line (feed and return) needs to be installed for the 16th FEE, this will be done once the hose is found/ordered...
The 4 new FEE64s will be mounted and powered up at some point to obtain the MAC addresses, and possibly check MIDAS merging 16 FEE64s.
Waveform data will be taken wednesday before & after grounding the rack to see noise situation currently |