Hi all, After going through the NMEA ref.clock driver, it seems that the original author has choosen values 0(GPXXX), 1(GPRMC), 2(GPGGA) and 4(GPGLL) for mode field so that multiple sentences can be selected. As posted earlier reg. using the mode byte/field to support Accord GPS Clock, fourth bit cannot be used to denote the baudrate.
Fourth bit can denote GPZDG(8) (custom NMEA format) while the fifth bit can be used for baudrate 0(4800) and 1(9600). But in this case multiple sentences may be allowed only if the value of last four bits is less than 8, because GPZDG gives GPS time and not UTC like rest of them. So if GPZDG is selected, others sentences should not be selected. Venu _______________________________________________ questions mailing list questions@lists.ntp.org https://lists.ntp.org/mailman/listinfo/questions