Unruh wrote: [] > The other problem is that the the voltage levels might be wrong. A > serial > port is supposed to be -12V to 12V, not the 0-5V that the PPS line on > the garmin delivers. Now some serial ports are OK with the 0-5V but > that is pretty > unusual. YOu either need a voltage converter, or you need to use the > parallel port instead, which takes 0-5V.
You are technically correct, but I haven't found a serial port yet which doesn't work correctly when fed with 0..5V. Cheers, David _______________________________________________ questions mailing list [email protected] https://lists.ntp.org/mailman/listinfo/questions
