I understand that it seems a little limited to have a board that only works with the m12+t. The fact is that this is the module I have built into my soekris machine, which I also use for general GPS PPS. I just wanted to clean it up a little and see if there was any interest on the list :)
On Wed, Dec 3, 2014 at 6:18 AM, Bert Kehren via time-nuts < [email protected]> wrote: > In the recent past I did offer a board and parts for some one to take on > the PIC programming for a saw tooth correction board. No takers.My offer > still stands. One of our tem members has a nice working unit in PIC Basic > not > understanding code it does how ever look very simple. I think what would be > nice is a chip that works with the different GPS units. As time nuts > having > hardware saw tooth correction should be of interest. > I also have a ublox design waiting for the PIC code again the same offer. > The code should also have the feature that the GPS engine can be instructed > to do a survey with out having to use a PC. > If any one is interested please contact me off list once we have it working > I will gladly do a board that will work with the units the code has been > written for, after discussion on the list what should be on the board. > Bert Kehren > > > In a message dated 12/3/2014 1:37:03 A.M. Eastern Standard Time, > [email protected] writes: > > Hi Tom, > I would certainly be interested. I have 4 receivers that I would like to > add that feature to. I was thinking of also trying the technique with > other > receivers, such as Trimble Jupiter/SMT or newer Ublox which provide > quantization data so I was thinking of a more generic serial/PPS pass > through > which could handle all those protocols quantization messages. > > > > Le 3 déc. 2014 à 04:56, Tom Wimmenhove <[email protected]> a > écrit : > > > > I'm using a soekris net4501 that I hacked according to > > http://www.febo.com/time-freq/ntp/soekris/ > > I have hacked a Motorola Oncore M12+T receiver inside the case on a > piece > > of veroboard. It's really ugly, using a bunch of discretes for RS232 > > translation and such. > > A BNC on the front privides PPS for use with other external hardware. > > Recenlty I felt the need to add hardware sawtooth correction. I want to > use > > the Dallas DS1023 chip to do this. I designed a little board as a > 'carrier' > > for the motorola, a little micro, the delay line for sawtooth correction > > and rs232 for the soekris (but could, of course, also be used to connect > to > > any other device that has RS232). > > > > I was wondering if there was any interest from other people for a little > > board like this. I don't have the parts yet, but the DS1023 is pretty > much > > the most exotic part on the board. > > > > I have attached some pictures of the design. > > > > Regards, > > Tom > > > > <gps_bottom.png><gps_top.png>_______________________________________________ > > 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.
