Paul, I wasn't talking about putting the d-psk-r software on the Blue Pill board. The d-psk-r software will be on the Arduino board.
What I was thinking of doing was putting a single NEMA message on the Blue Pill board. Then connect the UART transmit line to the Arduino in place of the GPS UART line. That way I could send the same NEMA message without having it change every minute. I would count 60 (or maybe 62) pps coming from the GPS and I would know the Arduino was ready for the next NEMA message. Initially I will use the GPS UART transmit line to confirm the Arduino/GPS combo works. Then play with sending my own NEMA GPRMC message from the Blue Pill board. It appears your software simply reads the TX buffer of the GPS until it is empty once per minute and then proceeds to parse the NEMA time/date information out one bit per second. However, the La Crosse Ultratomic clock would not work with this data stream since you are stripping the phase reversals out. Is that correct? I want to extract the time information only. So I would feed the 60 kHz sine wave into the preamp wire on the flipper board. Is that correct? Ray, AB7HE -------- Original Message -------- Subject: Re: [time-nuts] WWVB PM Time Questions From: paul swed <paulsw...@gmail.com> Date: Thu, July 30, 2020 5:14 pm To: Discussion of precise time and frequency measurement <time-nuts@lists.febo.com> Ray Are you speaking to the d-psk-r software? Its quite a bit more involved than what you mentioned. Its in the coding sequence. But could it be put on a bluepill absolutely. Its worked on all of the arduinos we have tried. The other thing is that by feeding a 60 KHz CW signal into the d-psk-r modulator/flipper it turns the signal into a wwvb bpsk signal. No AM modulation. But for bench testing its a noise free signal. But I am interested in the approach you are trying to develop that I guess might be a SDR solution. Good luck looking forward to your success. Regards Paul. _______________________________________________ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there. _______________________________________________ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.