[LinuxPPS] gps_nmea error

[Udo van den Heuvel]

Ritter, Nicholas wrote:
>> What driver? WHat patch?
> 
> I think that is part of my problem then...I patched the ntp4.2.4p4
> source with the nmea.patch found at 
> http://ftp.enneenne.com/pub/misc/linuxpps/refclocks/nmea/
> 
> I did not take into consideration that 4.2.4p4 has a nmea driver (20)
> already, I am guesing that the driver was merged into the ntp tree
> sometime after 4.2.4p2?

Nope.
The driver has been there for some time and needs slight adaptation.

>> If PPS: Carrier Detect lighting on and off?
> The LED is blink for PPS signal, once a second, as it should. I am using
> the qnan.org design.

Does your serial port see the PPS as well? That is the curcial question
here.
Do we see CD go on and off?

>> Could the DATUM setting and NMEA version setting of the GPS have an 
>> impact? In that NTP would not be able to parse a particular datum 
>> string format?
> 
>> ?
> 
> There are two settings in the Garmin 18 that I was not sure about:
> 
> Earth Datum index (currently set to "WGS 84")
> NMEA 2.30 Mode (currently set to "Off")

I never fiddled with those.

Udo