[LinuxPPS] Please review LinuxPPS section on time.qnan.org

[Philip M. White]

On Sun, Jun 04, 2006 at 09:38:00PM +0200, Rodolfo Giometti wrote:
> Note that command:
> 
>    $ cat /proc/pps/sources
> 
> now shows a little different output...
> 
> Sentence «as this driver supplies both the GPS time and the PPS signal
> to ntpd» is not true.
> 
> NTPD drivers collect two type of data: PPS signals and GPS time. In
> your system, for example, the NMEA driver reads GPS time from the
> serial line and it reads PPS data from LinuxPPS (which in turn, gets
> the signal from the same serial line too).
> 
> ASCII art time:
> 
>   -------+           +------------+
>          +-- TX/RX --+ /dev/ttyS0 +-----+
>          |           +------------+     |  +-------------+
>   RSR232 |                              +--+ NMEA driver |
>          |           +------------+     |  +-------------+
>          +--- DCD ---+  LinuxPPS  +-----+
>   -------+           +------------+

Perhaps this should have been a wiki. :)

Thanks for clarifying all this; you're strengthening my understanding.

I made the changes.

-- 
Philip
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