[Xastir] restore from backup, now does not find GPS

[Jason KG4WSV]

of those 12 NMEA sentences only 4 of them pass a superficial inspection
(starts with $GPxxx and ends with *HH) and i wouldn't place any large
wagers on them having a valid checksum.

maybe your "power spike" took out the GPS?

or maybe something else is reading data from the GPS at the same time? you
can't share a GPS by letting multiple processes read from it at the same
time. one process gets some of the data, the other process gets the rest.
it can look a lot like the data you've shown here.

-Jason
kg4wsv



On Wed, Mar 25, 2020 at 5:23 PM Rodney D. Myers <RodneyMyers60 at yahoo.com>
wrote:

> raspian -> VERSION="9 (stretch)"
> xastir         2.0.8-2+b1
> raspberry pi 3+
> pi-tnc
>
> upgrading breaks the once working setup.
>
> A power spike trashed the working sdcard, so restored ffrom when my call
> sign changed. Now xastir won't receive any info from USB gps. It is
> point to the correct device. In a terminal, I can ;
>
>         cat /dev/ttyACM1
> PRMC,221803.00,A,3600.11867,N,08353.75092,W,0.807,,250320,,,A*69
> VTG,,T,,M,0.807,N,1.495,K,A*25
> GA,221803.00,3600.11867,N,08353.75092,W,1,06,2.01,287.5,M,-32.2,M,,*6F
> GSA,A,3,19,07,17,30,01,06,,,,,,,4.26,2.01,3.75*0D
> $GPGSV,4,1,14,01,31,044,18,03,23,098,,06,26,208,28,07,09,170,26*7E
> SV,4,2,14,11,03,052,,13,04,254,,17,63,313,19,19,46,278,12*75
> GPGSV,4,3,14,22,21,071,21,24,05,323,,28,75,036,08,30,35,190,30*77
> $GPGSV,4,4,14,46,27,240,,51,41,216,*79
> $GPGLL,3600.11867,N,08353.75092,W,221803.00,A,A*79
> $GPRMC,221804.00,A,3600.11872,N,08353.75094,W,0.491,,250320,,,A*6F
> VTG,,T,,M,0.491,N,0.910,K,A*27
> $GPGGA,221804.00,3600.11872,N,08353
>
>
>
> as you can see I am pointing to the correct usb device. I am unable to
> find the howto(s) I use initially, 2 plus years ago, other wise I'd
> start fresh on buster.
>
> any idea(s) as to why xastir is unable to find the gps?
>
> thanks
>
> --
> Rodney D. Myers <WG4USA at arrl.net> - wg4usa
>
> They that can give up essential liberty to obtain a
> little temporary safety deserve neither liberty nor safety.
>         Ben Franklin - 1759
>
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> Xastir at lists.xastir.org
> http://xastir.org/mailman/listinfo/xastir
>


-- 
-Jason
kg4wsv