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Message ID: 407     Entry time: Sat Oct 29 07:26:59 2016
Author: TD 
Subject: AIDA ADC & disc data synchronisation check 
Following analysis of AIDA ADC & disc readout ( see https://elog.ph.ed.ac.uk/AIDA/404 )
changed timestamp resolution from 1us/channel to 20.48us/channel


Offline sort (from disk file)

Attachments 1-3  s1-s32  # ADC data items per FEE64, s100-132  # disc data items per FEE64 (20.48us/channel)

Attachments 4-5  s1000   4 * ( module # - 1 ) + ASIC # versus timestamp (ch 0-95 ADC data, ch 100-195 disc data,
20.48us/channel)

Attachments 6-7  MIDASsort terminal session logs for *offline* sort


Online sort (from TapeServer)

Attachment 8     s1-s32  # ADC data items per FEE64, s100-132  # disc data items per FEE64 (20.48us/channel)

Attachments 9-10 s1000   4 * ( module # - 1 ) + ASIC # versus timestamp (ch 0-95 ADC data, ch 100-195 disc data,
20.48us/channel)

Attachments 11-12 MIDASsort terminal session logs for *online* sort

Attachment 13   MIDASsort FORTRAN sort routine sync.f

Attachment 14   Spectrum titles for the above sort routine

Note

1) data is discontinuous as a function of timestamp because we are sampling buffers
from the TapeServer rather than sorting all data as above
2) a low rate of timewarps is reported which appears to be an artifact of the buffer
sampling - no timewarps reported by analyses of the corresponding data files
 
Attachment 1: 100.png  90 kB  Uploaded Sat Oct 29 08:27:32 2016  | Hide | Hide all | Show all
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Attachment 12: 117.png  96 kB  Uploaded Sat Oct 29 08:43:20 2016  | Show | Hide all | Show all
Attachment 13: sync.f  11 kB  Uploaded Sat Oct 29 08:45:44 2016  | Show | Hide all | Show all
Attachment 14: titles.dat  2 kB  Uploaded Sat Oct 29 08:46:07 2016  | Hide | Hide all | Show all
s1 nnaida1: ADC data items (20us/ch)
s2 nnaida2: ADC data items (20us/ch)
s3 nnaida3: ADC data items (20us/ch)
s4 nnaida4: ADC data items (20us/ch)
s5 nnaida5: ADC data items (20us/ch)
s6 nnaida6: ADC data items (20us/ch)
s7 nnaida7: ADC data items (20us/ch)
s8 nnaida8: ADC data items (20us/ch)
s9 nnaida9: ADC data items (20us/ch)
s10 nnaida10: ADC data items (20us/ch)
s11 nnaida11: ADC data items (20us/ch)
s12 nnaida12: ADC data items (20us/ch)
s13 nnaida13: ADC data items (20us/ch)
s14 nnaida14: ADC data items (20us/ch)
s15 nnaida15: ADC data items (20us/ch)
s16 nnaida16: ADC data items (20us/ch)
s17 nnaida17: ADC data items (20us/ch)
s18 nnaida18: ADC data items (20us/ch)
s19 nnaida19: ADC data items (20us/ch)
s20 nnaida20: ADC data items (20us/ch)
s21 nnaida21: ADC data items (20us/ch)
s22 nnaida22: ADC data items (20us/ch)
s23 nnaida23: ADC data items (20us/ch)
s24 nnaida24: ADC data items (20us/ch)
s25 nnaida25: ADC data items (20us/ch)
s26 nnaida26: ADC data items (20us/ch)
s27 nnaida27: ADC data items (20us/ch)
s28 nnaida28: ADC data items (20us/ch)
s29 nnaida29: ADC data items (20us/ch)
s30 nnaida30: ADC data items (20us/ch)
s31 nnaida31: ADC data items (20us/ch)
s32 nnaida32: ADC data items (20us/ch)

s101 nnaida1: Disc data items (20us/ch)
s102 nnaida2: Disc data items (20us/ch)
s103 nnaida3: Disc data items (20us/ch)
s104 nnaida4: Disc data items (20us/ch)
s105 nnaida5: Disc data items (20us/ch)
s106 nnaida6: Disc data items (20us/ch)
s107 nnaida7: Disc data items (20us/ch)
s108 nnaida8: Disc data items (20us/ch)
s109 nnaida9: Disc data items (20us/ch)
s110 nnaida10: Disc data items (20us/ch)
s111 nnaida11: Disc data items (20us/ch)
s112 nnaida12: Disc data items (20us/ch)
s113 nnaida13: Disc data items (20us/ch)
s114 nnaida14: Disc data items (20us/ch)
s115 nnaida15: Disc data items (20us/ch)
s116 nnaida16: Disc data items (20us/ch)
s117 nnaida17: Disc data items (20us/ch)
s118 nnaida18: Disc data items (20us/ch)
s119 nnaida19: Disc data items (20us/ch)
s120 nnaida20: Disc data items (20us/ch)
s121 nnaida21: Disc data items (20us/ch)
s122 nnaida22: Disc data items (20us/ch)
s123 nnaida23: Disc data items (20us/ch)
s124 nnaida24: Disc data items (20us/ch)
s125 nnaida25: Disc data items (20us/ch)
s126 nnaida26: Disc data items (20us/ch)
s127 nnaida27: Disc data items (20us/ch)
s128 nnaida28: Disc data items (20us/ch)
s129 nnaida29: Disc data items (20us/ch)
s130 nnaida30: Disc data items (20us/ch)
s131 nnaida31: Disc data items (20us/ch)
s132 nnaida32: Disc data items (20us/ch)

s1000 4*(module # - 1) + asic # (0-95 ADC; 100-195 Disc) versus timestamp (20us/ch)

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