[time-nuts] How to get PPS from ublox mini-PCI GPS to APU2 SoC serial port for ntpd

Attila Kinali attila at kinali.ch
Sun Aug 14 08:00:10 EDT 2016

On Sun, 14 Aug 2016 08:29:48 +0000
"STR ." <strykar at hotmail.com> wrote:

> Serial port 3 and 4 are provided via the GPIO pins connected to an NCT5104D I/O controller which is 5V tolerant.
> http://datasheet.octopart.com/NCT5104D-Nuvoton-datasheet-38893851.pdf
> I believe that's why it was suggested to avoid the 3V-5V conversion.

Oops.. I missed that the other UARTs were connected to the GPIO header.

If you use those, you can directly connect the LEA outputs, as the LEA
does use 3.3V CMOS for I/O.

			Attila Kinali
Malek's Law:
        Any simple idea will be worded in the most complicated way.

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