Changes between Initial Version and Version 1 of HCALFrontEndDebugLog


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Timestamp:
Mar 28, 2017, 9:08:39 AM (6 years ago)
Author:
Eric Hazen
Comment:

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  • HCALFrontEndDebugLog

    v1 v1  
     1Nav:  [[HCALFrontEnd]]
     2
     3'''2017-02-10'''
     4
     5There are 39 ohm series R on BKP-JTAG-TCK on the control board (R2).  Replace with larger value, certainly improves signal integrity.  See eLog:  [http://cmsonline.cern.ch/cms-elog/966892 966892].  Tullio suggests further work, see [http://joule.bu.edu/~hazen/CMS/HCAL_FE/JTAG_Email_11Feb2017.txt eMails].
     6
     7
     8schematics:
     9* HBHE ngCCM: https://cms-docdb.cern.ch/cgi-bin/DocDB/ShowDocument?docid=13096
     10* HBHE backplane: https://cms-docdb.cern.ch/cgi-bin/DocDB/ShowDocument?docid=12784
     11* HBHE QIE card: https://cms-docdb.cern.ch/cgi-bin/DocDB/ShowDocument?docid=12782 (pag2 B2 you can see the 0ohm resistors Joe was pointing to)
     12* https://indico.cern.ch/event/507473/ Useful PRR talks
     13
     14svn repository:
     15* ngFEC: https://svnweb.cern.ch/trac/cms-firmwsrc/browser/hcal/HCAL_ngFEC_fc7/trunk
     16* ngCCM: https://svnweb.cern.ch/trac/cms-firmwsrc/browser/hcal/HBHE_ngCCM
     17* https://svnweb.cern.ch/trac/cms-firmwsrc/browser/hcal/HF_ngCCM/igloo2_UMD_mezz