[time-nuts] Microsemi/Symmetricom date codes?

[Fiorenzo Cattaneo]

I'm wondering, does this apply to old Microsemi/Symmetricom hardware
as well? I have a vintage 2008-2010 PCI (not PCI express) BCP635v2
card, and the serial number does not appear to have a discernible
pattern, that I'm aware of at least ( "10819084" ). I suppose I could
interpret the first two digits as YY, but the remaining digits don't
make much sense.


Kernel log shows PCI_ID = 12E2  ("Datum Inc. Bancomm-Timing Division"
per PCI vendor database).

Serial and Hardware information is as follows:

req 4f firmware revision is->DT10041V12 <-
req f4 assembly is 0
req f5 hardware fab is 0
req f6 model is BC635PCI
req fe serial number is 10819084

=======================================


fio at clepsydra # dmesg | grep btfp0 | head -12
btfp0: btfp_probe
btfp0: btfp_probe
btfp0: btfp_probe: found dev vendor_id=12e2, device_id=12e2
btfp0 mem 0xfebff000-0xfebfffff,0xfebfe000-0xfebfefff irq 20 at device
0.0 on pci6
btfp0: [GIANT-LOCKED]
btfp0: intr setup ok
btfp0: Inarea offset = 102    (0102)
btfp0: Outarea offset = 82    (0082)
btfp0: GPSarea offset = 2    (0002)
btfp0: YRarea offset = 0    (0000)
btfp0: hasGPS = 0
btfp0: making device btfp0
fio at clepsydra #
fio at clepsydra #


fio at clepsydra # sudo ./btfp_test

Open of tfp device /dev/btfp0 is good
This program causes loss of time lock for ~ 2 min
control register = 0xfebff000
control register = 0x7000 [reserved bits zeroed]
    EVENT1 capture lockout = disabled
    EVENT1 source select = event input triggered
    EVENT1 input edge select = falling edge
    EVENT0/1 capture register = disabled
    Strobe output = disabled
    Time coincidence Strobe mode = major & minor time
    Frequency select = 5 Mhz
    EVENT2 capture lockout = disabled
    EVENT2 input edge select = falling edge
    EVENT2 capture register = disabled
    EVENT3 capture lockout = enabled
    EVENT3 input edge select = rising edge
    EVENT3 capture register = enabled
time 1 is 0x5c6b251e, time0 is 0x004682f9
Timesource status is locked
req 10 timesource is external PPS
req 11 time register format is UNIX
Local time is Mon Feb 18 13:35:26 2019
req 14 PPO parms are PPS sync is 1, Divider1 is 100, Divider2 is 100
req 15 input timecode format is IRIG-B
req 16 input timecode modulation is DC level shift PCM
req 17 propagation delay is 0
req 1b output timecode format is IRIG-B
req 21 jamsync enabled is 1
req 4f firmware revision is->DT10041V12 <-
req f4 assembly is 0
req f5 hardware fab is 0
req f6 model is BC635PCI
req fe serial number is 10819084
fio at clepsydra #


-- Fio Cattaneo

Universal AC, can Entropy be reversed? -- "THERE IS AS YET
INSUFFICIENT DATA FOR A MEANINGFUL ANSWER."

On Thu, Feb 14, 2019 at 4:00 PM Brooke Clarke <brooke at pacific.net> wrote:
>
> Hi Tom:
>
> A common date code format is YYMM, 2 digits for the year and two digits for the week number.
>
> --
> Have Fun,
>
> Brooke Clarke
> https://www.PRC68.com
> http://www.end2partygovernment.com/2012Issues.html
> axioms:
> 1. The extent to which you can fix or improve something will be limited by how well you understand how it works.
> 2. Everybody, with no exceptions, holds false beliefs.
>
> -------- Original Message --------
> > Hi All;
> > I sure this is an easy question, On Microsemi/Symmetricom produces I believe the first four serial number digits are date code but from there I am a bit hazy. Are the first two digits year and the second month? Or is it month-year?
> > Thanks;
> >
> >
> > Tom Knox
> >
> > 303-554-0307
> >
> > actast at hotmail.com
> >
> > "Peace is not the absence of violence, but the presence of Justice" Both MLK and Albert Einstein
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