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km4ack / pi-build

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NMEA and PPS different with build a pi #504

Open mikey1963 opened 1 year ago

mikey1963 commented 1 year ago

Without this build my pps time signal works fine but when build a pi is installed my pps signal just times out and is therefore unusable. Also my NMEA output seems to be significantly slower than internet connected devices. Without build a pi my gps whoops internet connected devices. Having scanned thru the code I can't see anything affecting it, anyone else throw any light on this? image

km4ack commented 1 year ago

There is only one section in the code where BAP modifies things pertaining to the GPS.

https://github.com/km4ack/pi-build/blob/master/functions/base.function#L74-L85

You might compare /etc/default/gpsd.org to the current gpsd file to see if any of the BAP changes are causing this.

mikey1963 commented 1 year ago

Thanks I had already found this and like you , I can’t see anything in there to effect it. I think the only other thing to try is to not use shared memory segments. Perhaps use some other directly device addressing line in the chrome conf file I guess. I will keep investigating. Thanks for a great script. Mike de M0JUJ

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On 10 Mar 2023, at 19:07, KM4ACK @.***> wrote:



There is only one section in the code where BAP modifies things pertaining to the GPS.

https://github.com/km4ack/pi-build/blob/master/functions/base.function#L74-L85

You might compare /etc/default/gpsd.org to the current gpsd file to see if any of the BAP changes are causing this.

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