Dan exactly my thinking. I will guess it wants the string that says I have a 3d position lock. Something like @@ and 30-40 characters that would be fixed.I think there is a CRC at the end. But all of the message can be copied from a real oncore or simply monitor what comes out of the KS GPS unit. Hard to say whats needed but a good discussion. Be it any number of uProcs they can all easily do a fixed string. Regards Paul WB8TSL
On Fri, Aug 7, 2015 at 5:13 PM, D W <[email protected]> wrote: > Yes, I'm hoping that it just wants a dummy string to say GPS is ok, and > doesn't actually use any information in it. If that's the case, code can be > developed for PIC and AVR that will work for just about anyone, using a ~$1 > chip. > > Even if the string does need to contain real GPS info, it should still be > quite easy to do. > > A while back I wrote some code to parse the serial string from a Jupiter-T > and display the information on a 4 line LCD display. It worked very nicely > but I never did anything useful with it. I think I'll take Bob's notes and > incorporate the REF-0. That would make for a very compact setup. > > Dan > > > On Aug 7, 2015, at 2:06 PM, paul swed <[email protected]> wrote: > > > > Looking forward to the notes. > > Yes it could be fairly simple if what ref 0 wants is a string that > > essentially says the system is fixed with 3 d accuracy. Perhaps after > that > > the ref 0 makes no checks other then the string keeps coming with the > > correct quality. Not to push a particular proc but any of the low end > ones > > will do that stunt very easily. > > That would be pretty sweet. > > Paul > > WB8TSL > > > >> On Fri, Aug 7, 2015 at 10:13 AM, Bob Camp <[email protected]> wrote: > >> > >> Hi > >> > >> Ok, I will write something up and post it here. It will probably take a > >> few days > >> to get it all into a form that answers most of the questions. > >> > >> What you will need: > >> > >> 1) A working REF-0 > >> 2) A PIC or other micro to get things going > >> 3) A GPS with a PPS output (any will do) > >> 4) Code specific to your GPS and the needs of the REF-0 > >> > >> Since the Oncore needs to be set up each time it’s booted, there is no > real > >> advantage to using one. You still need an MCU in the mix. > >> > >> More to follow. > >> > >> Bob > >> > >>> On Aug 7, 2015, at 5:24 AM, Graham <[email protected]> wrote: > >>> > >>> Bob, > >>> > >>> I would like that information too please and thank you. > >>> > >>> I have a pair that is working quite well and I also have a second REF-0 > >> that I want to start testing but just haven't got round to it yet to > figure > >> out what is needed. > >>> > >>> cheers, Graham ve3gtc > >>> > >>> > >>>> On 2015-08-07 02:39, Bob Camp wrote: > >>>> Hi > >>>> > >>>> You need to get the Oncore running with the correct position locked in > >> and spitting out the right strings. > >>>> That’s all done by the CPU in the REF-1 unit. The REF-0 simply grabs > >> the data off of the string > >>>> as it comes by. > >>>> > >>>> I’ll see if I can dig out the information and send it to you off list. > >> It’s buried around here somewhere. > >>>> > >>>> Bob > >>>> > >>>>> On Aug 6, 2015, at 10:02 PM, Edesio Costa e Silva < > >> [email protected]> wrote: > >>>>> > >>>>> Thanks. > >>>>> > >>>>> I have some Motorola Oncore available. > >>>>> > >>>>> Can you detail this "fairly simple manipulation of the signal lines"? > >>>>> > >>>>> Regards, > >>>>> > >>>>> Edésio > >>>>> > >>>>>> On Thu, Aug 06, 2015 at 09:57:20PM -0400, Bob Camp wrote: > >>>>>> Hi > >>>>>> > >>>>>> People got a bit ???excited??? about the level of KS box > discussions. > >> All of the work decoding > >>>>>> the 15 pin connector and how to drive the REF-0 was taken off list. > >>>>>> > >>>>>> Simple answer: > >>>>>> > >>>>>> Yes you can run a REF-0 by it???s self. It needs a dummy string that > >> looks like the output > >>>>>> of a Motorola Oncore to feed it and some fairly simple manipulation > >> of the signal lines. > >>>>>> It will then quite happily discipline to the pps you feed it. > >>>>>> > >>>>>> Bob > >>>>>> > >>>>>>> On Aug 6, 2015, at 7:27 PM, Edesio Costa e Silva < > >> [email protected]> wrote: > >>>>>>> > >>>>>>> Hello Fellows! > >>>>>>> > >>>>>>> Had anyone managed to run the KS-24361 REF-0, the one without GPS, > >> as a > >>>>>>> standalone unit? If so, can you provide some links on how to > >> configure it? > >>>>>>> > >>>>>>> The reason to try this is cost. The REF-0 unit costs USD 25 + USD > >> 52.30 > >>>>>>> (shipping to Brazil) and I have to pay the same amount as custom > >> taxes. > >>>>>>> > >>>>>>> Right now the REF-0/REF-1 pair would be too expensive. > >>>>>>> > >>>>>>> Regards, > >>>>>>> > >>>>>>> Edésio > >>>>>>> _______________________________________________ > >>>>>>> time-nuts mailing list -- [email protected] > >>>>>>> To unsubscribe, go to > >> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > >>>>>>> and follow the instructions there. > >>>> _______________________________________________ > >>>> time-nuts mailing list -- [email protected] > >>>> To unsubscribe, go to > >> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > >>>> and follow the instructions there. > >>> > >>> _______________________________________________ > >>> time-nuts mailing list -- [email protected] > >>> To unsubscribe, go to > >> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > >>> and follow the instructions there. > >> > >> _______________________________________________ > >> time-nuts mailing list -- [email protected] > >> To unsubscribe, go to > >> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > >> and follow the instructions there. > > _______________________________________________ > > time-nuts mailing list -- [email protected] > > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > > and follow the instructions there. > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
