xyz-2041 wrote:
On Feb 14, 4:58 pm, David Lord <sn...@lordynet.org> wrote:
xyz-2041 wrote:
Thanks for your responses, guys. Will reply in the future.
Tried Garmin software to try to talk to the unit on a
Windows box:
<https://buy.garmin.com/shop/store/downloadsUpdates.jsp?
product=010-00124-00&cID=170&pID=70>
None of these 3 programs worked.
Tried MS Hyperterminal. No good.
Tried RealTerm (<http://realterm.sourceforge.net/>). Got to see
the messages once I got it working at 4800. RealTerm shows
the dataflow just like a breakout box. Saw that it is *not* sending
PPS on pin 1. Just sending messages on pin 2.
What sentences is it sending NMEA or binary?
How do you have the unit wired to the serial port?
The JST has pins 1-12 1=TxD2 2=RxD2 3=PPS 4=TxD1 5=TxD2
6=PD 7=AuxBat 8=GND 9/10=3.6 to 6V 11=nc 12=NMEA-out(cmos)
You need to check on below, it's best I can work out
ie JSTpin D9pin
3 --------- 1
4 --------- 2
5 --------- 3
8 ---+----- 5
|
+---- 0V
10 -------- +3.6 to +6V
CMOS generated RS232 levels should be ok but depends on
serial port of your pc. PPS out to DCD is given as 700mVp-p
into 50r so will need converting to rs232.
Tried to send a message to change to 9600, and turn PPS on.
Ignored messages because of improper syntax. Needs
proper checksum.
I have a gwbasic program for working out required messages.
GPSD will do it for you. Garmin site also have a windows
utility for generating required commands with checksum.
Does anyone know of software that actually works with this
unit?
GPSD?
David
Changed back to the Oncore:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# GPS Oncore driver
# server 127.127.30.0 prefer
server 127.127.30.0
fudge 127.127.30.0 refid GPSo
# PPS driver:
server 127.127.22.0 prefer
fudge 127.127.22.0 refid PPS
# Generic NMEA GPS Receiver:
# server 127.127.20.0
# fudge 127.127.20.0 time1 0.752 refid NMEA
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Pin 1 = PPS (Light is blinking once per second
for about 200 ms)
Pin 2 = Data: GPS -> PC (Light blinks once per second--after pin 1--
for about 300-400 ms)
Pin 3 = Data: PC -> GPS
Pin 5 = Ground
Installed:
pkg_info | grep gpsd
gpsd-2.90 Daemon that monitors one or more GPSes attached to
a host c
# ls -lta /dev | grep cua
crw-rw---- 1 uucp dialer 0, 41 Feb 15 00:33 cuad0
lrwxr-xr-x 1 root wheel 5 Feb 14 15:42 gps0 -> cuad0
lrwxr-xr-x 1 root wheel 5 Feb 14 15:42 oncore.pps.0 -
cuad0
lrwxr-xr-x 1 root wheel 5 Feb 14 15:42 oncore.serial.
0 -> cuad0
lrwxr-xr-x 1 root wheel 5 Feb 14 15:42 pps0 -> cuad0
lrwxr-xr-x 1 root wheel 5 Feb 14 15:42 refclock-0 ->
cuad0
crw-rw---- 1 uucp dialer 0, 42 Feb 14 15:42 cuad0.init
crw-rw---- 1 uucp dialer 0, 43 Feb 14 15:42 cuad0.lock
gpsd outputs nothing at all:
# /usr/local/sbin/gpsd /dev/cuad0
#
# /usr/local/bin/gpscat -s 9600N1 /dev/cuad0
Get some HEX output once per second:
\x08'\xa2\x03\x08#\xa2\x06\x00\x00 \x08\x081\xa2\x17\x00\x00\x00\x1c
\x00\x00\x00\x08*
@@Ea\x02\x0f\x07\xda\x004+\x00\x02\xea\xb1\x08\xce,\xbf\xec>
\x0f0\x00\x00N\xb3\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01
remote refid st t when poll reach delay
offset jitter
==============================================================================
...
GPS_ONCORE(0) .GPSo. 0 l - 16 0 0.000
0.000 0.001
PPS(0) .PPS. 0 l - 64 0 0.000
0.000 0.001
How can it be getting data on the serial port but NTP
can't seem to see it?
Wrong baud rate and/or Oncore set to a config that
gpsd doesn't support?
If it still works from Windows is it possible to reset
to defaults that are supported by gpsd or NMEA drivers.
David
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