-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 It looks like it affects truetime XL-DC's I just noticed it at my house as well :(
On 8/11/13 07:09:40, Magnus Danielson wrote: > If Furuno can supply the FW to update with, we would be more than > happy. > > A slight alteration of the code would suffice... > > if (week < 729) week += 2048; else week += 1024; > > Which would keep them floating for another 1024 weeks. If they then > let us know where the two constats is located so we could modify it > again ourselves we be very happy. > > Cheers, Magnus > > On 08/11/2013 01:29 PM, Azelio Boriani wrote: >> OK, good, found the bug. Now, iwe wish it were possible to >> download the firmware, make the correction and then upload... >> >> On Sun, Aug 11, 2013 at 1:14 PM, Magnus Danielson >> <mag...@rubidium.dyndns.org> wrote: >>> On 08/11/2013 05:18 AM, Mark C. Stephens wrote: >>>> Okay this is what worked for me: >>>> >>>> 1. Removed power and antenna. 2. apply power with no >>>> antenna. 3. send :GPS:INIT:DATE 2007,08,11 4. plug antenna >>>> back in. >>>> >>>> For some reason if I used the correct date, the Z3815A warped >>>> back to 1993. >>>> >>>> But I am curious why did this happen today? >>> GPS weeks begin on sundays. Today is first day of week 1753: >>> >>> http://csrc.ucsd.edu/scripts/convertDate.cgi?time=2013+08+11 >>> >>> Going back 1024 days gives you week 729 day 0, which occurs on >>> 1993 12 26: >>> http://csrc.ucsd.edu/scripts/convertDate.cgi?time=1993+12+26 >>> >>> A simple way to compensate for the lack of bits is to assume >>> wrapping occurs, so week numbers lower than som value actually >>> lacks 1024 weeks. A trivial code like this fixes this: >>> >>> if (week < 729) week += 1024; >>> >>> Brilliant until you reach week 1753. >>> >>> I've seen this happen at 500 and 512. >>> >>> Cheers, Magnus >>> >>>> >>>> --marki >>>> >>>> -----Original Message----- From: time-nuts-boun...@febo.com >>>> [mailto:time-nuts-boun...@febo.com] On Behalf Of Mark C. >>>> Stephens Sent: Sunday, 11 August 2013 1:06 PM To: Discussion >>>> of precise time and frequency measurement Subject: Re: >>>> [time-nuts] Warped back to 1993 >>>> >>>> Hal, I can't get it to take, I keep getting E-350 and the >>>> time does not change. Did you unplug the antenna or anything >>>> while you changed date? >>>> >>>> >>>> >>>> >>>> >>>> -----Original Message----- From: time-nuts-boun...@febo.com >>>> [mailto:time-nuts-boun...@febo.com] On Behalf Of Hal Murray >>>> Sent: Sunday, 11 August 2013 12:54 PM To: Discussion of >>>> precise time and frequency measurement Subject: Re: >>>> [time-nuts] Warped back to 1993 >>>> >>>> >>>> ma...@non-stop.com.au said: >>>>> A Z3805A, a Z3815A and 58534A integrated timing antenna all >>>>> think it's 26 Dec 1993. What happened?! >>>>> _______________________________________________ >>>> Is that off by 1024 weeks? (Looks close, but I haven't >>>> checked the details.) >>>> >>>> There is a week field in the GPS data stream. It's only 10 >>>> bits. >>>> >>>> I had that problem on a Z3801A. It did the right thing after >>>> I told it the date. :GPS:INIT:DATE 2011,12,26 >>>> >>>> >>>> >>> _______________________________________________ time-nuts >>> mailing list -- time-nuts@febo.com To unsubscribe, go to >>> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and >>> follow the instructions there. >> _______________________________________________ time-nuts mailing >> list -- time-nuts@febo.com To unsubscribe, go to >> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and >> follow the instructions there. > > _______________________________________________ time-nuts mailing > list -- time-nuts@febo.com To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow > the instructions there. > -----BEGIN PGP SIGNATURE----- Version: GnuPG/MacGPG2 v2.0.17 (Darwin) Comment: GPGTools - http://gpgtools.org Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQEcBAEBAgAGBQJSFRYKAAoJEHJ/lMQe1SM00eQIAKdWyxF+S02ggU6QV6Y8koTk uZgSsJdbJDi2jyq/m1mcN7ywqj2QuOQY87r+Hqcqcz6Ym0D3MinINOKggszUYXDA HGH3thUZt086LtD+znUgQbDIrctzRdnQldVcx8ueEb1TIq+9pT1Y71J42LcxLmjl zaP7QM/ol9tEYZro2ARQHqztE/HwEcpXm7ESLCaFu3av0thGLaON89gdcToRdKOp KmMMtVNr2A6onlYX+OLqDDZcfcLulM4wvhZxuqwQVMDaUAlb8jyhKoKCgHdUsZd1 BNPZqOw2gkJPjyz13XaS7wE51OjKsgJmYrLPE+KzoSetBuqApkMdrCOQgR+jKE4= =pEef -----END PGP SIGNATURE----- _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.