.net - Is there a PTP (Precision Time Protocol | IEEE 1588) library? -

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i've been tasked syncing time critical process logging data plc ptp (precision time protocol, ieee 1588) time source.

a quick @ available libraries turn nothing ivi-c , ivi-com based implementations.

is there managed library supports ptp missed, or need find method use theivi-com library designed labview in application?

i had reffered, following answer site http://code.google.com/p/ptpv2d/wiki/introduction, gave me clear idea on ptpv2d, hope clear information, this.

pls refer http://code.google.com/p/ptpv2d/

ptpv2d gpl licensed open source code of ieee 1588 version 1, version 2 , ieee 802.1as including hardware timestamping freescale mpc831x family of processors.

the ptpv2d precision time protocol has following features:

  1. the user mode application runs under standard linux, modular design ensures easy portation additional operating systems.
  2. an extensive optional print-to-console debug message function. message functionality can added or omitted @ compile time. if included, output level command-line selectable. debug messages uniformly formatted quicker, easier analysis. posix socket calls used retrive messages. message handling contained in separate module ensure easy portation desired operating system.
  3. freescale mpc8313e ethernet port driver full support ptp version 1 , version 2 message hardware time stamping.
  4. ability adjust hardware clock precisely (as precise 1 part per billion). software algorithm fine (as small 1 part per billion) adjustment of hardware clock .
  5. ability report detected variances grandmaster clock in parts per million
  6. command line ability set 4 different debug output levels: none, basic, verbose, , message 7.ability set sync/follow-up transmit time values of less 1 second. allows multiple sync/follow-ups per second, provides enhanced accuracy , tracking of "slave" system "grandmaster" system.
  7. additional run time options , support code include:
  8. selection of ptp version 1 or version 2 encapsulation , protocol 10.selection of ieee 1588 ptp on ipv4/udp, ieee p1588 ptp on ethernet (draft 2.2)or ieee p802.1as encapsulation , protocol(draft 1.0) user specified clock period synthesize other base clocks, not @ 10 mhz.

these features have gone through extensive testing using dual mpc8313e-rdb boards running both ptp , ping traffic. on freescale mpc8313e-rdb board running 8 sync/follow-up messages per second, support plus or minus 50 nanosecond offset master more 99.9% of time. @ 128 sync/follow-ups per seconds, system synchronize within 16 nanoseconds of "grandmaster" system.


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