Well, it looks like bps rates aren't the issue. I got the port set for
9600 and
ntp.conf listing (mode 16) and still no dice.
NOTES:
------------
# ntp.conf entry
#
#
server 127.127.20.0 minpoll 4 mode 16 prefer
#
#
godzilla# stty -a -f /dev/cuau0
speed 9600 baud; 0 rows; 0 columns;
lflags: icanon isig iexten echo echoe -echok echoke -echonl echoctl
-echoprt -altwerase -noflsh -tostop -flusho -pendin -nokerninfo
-extproc
iflags: -istrip icrnl -inlcr -igncr ixon -ixoff ixany imaxbel -ignbrk
brkint -inpck -ignpar -parmrk
oflags: opost onlcr -ocrnl tab0 -onocr -onlret
cflags: cread cs8 -parenb -parodd hupcl clocal -cstopb -crtscts -dsrflow
-dtrflow -mdmbuf
cchars: discard = ^O; dsusp = ^Y; eof = ^D; eol = <undef>;
eol2 = <undef>; erase = ^?; erase2 = ^H; intr = ^C; kill = ^U;
lnext = ^V; min = 1; quit = ^\; reprint = ^R; start = ^Q;
status = ^T; stop = ^S; susp = ^Z; time = 0; werase = ^W;
godzilla#
godzilla#
godzilla# cu -l /dev/cuau0 -s 9600
Connected
$GPGGA,045400.000,3903.1320,N,07729.1216,W,1,6,2.57,59.6,M,-33.4,M,,*58
$GPGSA,A,3,19,13,06,03,23,07,,,,,,,3.50,2.57,2.38*04
$GPGSV,3,1,12,19,75,077,20,07,70,314,16,03,40,050,33,13,37,217,29*7A
$GPGSV,3,2,12,11,34,159,,08,32,315,,06,27,048,26,16,19,075,*79
$GPGSV,3,3,12,48,17,246,,23,16,192,15,01,13,164,,28,10,273,*75
$GPRMC,045400.000,A,3903.1320,N,07729.1216,W,0.58,124.13,200212,,,A*74
$GPGGA,045401.000,3903.1317,N,07729.1216,W,1,6,2.57,59.7,M,-33.4,M,,*5C
$GPGSA,A,3,19,13,06,03,23,07,,,,,,,3.50,2.57,2.38*04
$GPGSV,3,1,12,19,75,077,20,07,70,314,15,03,40,050,33,13,37,217,29*79
$GPGSV,3,2,12,11,34,159,,08,32,315,,06,27,048,26,16,19,075,*79
$GPGSV,3,3,12,48,17,246,,23,16,192,15,01,13,164,,28,10,273,*75
$GPRMC,045401.000,A,3903.1317,N,07729.1216,W,0.58,124.07,200212,,,A*74
godzilla#
godzilla# /etc/rc.d/ntpd start
Starting ntpd.
godzilla# ntpq -p
remote refid st t when poll reach delay offset
jitter
==============================================================================
GPS_NMEA(0) .GPS. 0 l - 16 0 0.000 0.000
0.002
godzilla#
godzilla#
godzilla# ntpdc -c kerninfo
pll offset: 0 s
pll frequency: -12.503 ppm
maximum error: 0.021516 s
estimated error: 1.6e-05 s
status: 2340 unsync ppssignal ppsjitter nano
pll time constant: 0
precision: 1e-09 s
frequency tolerance: 496 ppm
pps frequency: -12.503 ppm
pps stability: 0.000 ppm
pps jitter: 0 s
calibration interval: 4 s
calibration cycles: 0
jitter exceeded: 0
stability exceeded: 0
calibration errors: 0
godzilla#
godzilla#
-Alby
On Sun, Feb 19, 2012 at 11:18 PM, Dave Hart <[email protected]> wrote:
> On Mon, Feb 20, 2012 at 02:51, AlbyVA <[email protected]> wrote:
> > Now I know I can see data from /dev/cuau0 (a /dev/gps0 link points to
> > /dev/cuau0) when I cat the port.
> > But when I start up the NTP daemon, I get nothing.
>
> Perhaps cat and ntpd are reading the port at different speeds?
> Double-check the mode value for 127.127.20.0 in ntp.conf specifies the
> same rate the GPS is sending.
>
> BTW, the questions@ list is a better fit for this discussion.
>
> Cheers,
> Dave Hart
>
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