Questions tagged [gpsd]
Questions pertaining gpsd, a daemon that receives data from a GPS receiver, and provides the data back to multiple applications such as Kismet or GPS navigation software.
18
questions
0
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0answers
33 views
GPSNMEA: symbol not found error
This is similar to the issue posted here. I'm trying to run a binary(gpslogger) of the following type:
ELF 64-bit LSB executable, ARM aarch64, version 1 (SYSV), dynamically linked, interpreter /lib/ld-...
0
votes
1answer
309 views
Emulating an AARCH64 Binary calling libgps on x86_64 Ubuntu using QEMU gives “Error relocating: symbol not found” Errors
This is similar to the issue posted here and here. I want to reverse engineer a binary called gpslogger but before debugging it using GDB, I wish to simply emulate it using QEMU (qemu-aarch64) since ...
0
votes
0answers
297 views
Accessing USB GPS device from Python program running on virtual server
I have a ublox ZED-F9P GPS connected to the USB port on a Raspberry Pi that is successfully working with version 3.19 of the GPSD library. I can boot up the Pi and see the GPS info from cgps.
I have a ...
0
votes
0answers
163 views
UART connection to GPS not working on Linux
I have a little problem with the GPS on my Beaglebone. I am trying to get a serial communication on one of the UARTs. However I do not get any response when I try to use cat. With the screen command I ...
1
vote
0answers
361 views
gpsd fails to start on boot, but does manually
Ok, I know there are variations of this problem out there. I have looked at nearly every one that looks like it might be pertinent and nothing works.
I have a USB serial device that I set up to be on ...
1
vote
1answer
277 views
Feeding “mixed” NMEA to NTP for time correction
I am trying to correct the time on my Raspberry pi by feeding NTPD with GPS nmea data (via serial) and PPS (via GPIO pin) using the following tutorial via shared memory "SHM".
http://www.unixwiz.net/...
0
votes
1answer
399 views
GPS starts emitting data as soon as I kill GPSD
I can't really figure out how GPSD works. If I start gpsmon nothing happens. But if I run sudo killall gpsd immediately position starts to appear on screen.
The same happens in my node app. I start ...
2
votes
0answers
1k views
GPS device not detected by gpsctl
My GPS device (/dev/ttyUSB2) outputs NMEA sentences when connected to with minicom or cat, but when using gpsctl with gpsd (running gpsd /dev/ttyUSB2) the following output is generated:
gpsctl: no ...
2
votes
0answers
775 views
preventing udev symlink overwrite
I built a PPS-capable GPS clock on my Raspberry Pi, and to get it to work, I needed to use udev to create symlinks to the hardware serial port and the kernel GPIO PPS on /dev/gps0 and /dev/gpspps0. ...
-2
votes
1answer
279 views
How do I interpret the results of gpscat? [closed]
I've been trying to get gps data from an embedded system. This is the command I use:
gpscat /dev/ttyS2
And I get a continuous stream of output like this:
$GLGSV,1,1,03,70,14,098.6102,E,121853.000,...
1
vote
1answer
783 views
How do I use gpsdecode to output the results of gpscat in a readable manner?
I am connected to a processor with GPS attached through a USB-serial port. What I've been trying to do is read the GPS data by doing:
gpscat /dev/ttyS2 | gpsdecode
However, it's very slow and after ...
2
votes
1answer
1k views
How to read NMEA data from the Holux M-1200 GPS receiver
I have a Holux M-1200 GPS receiver and a pl2303 data cable.
The cable appears as /dev/ttyUSB0, but when I turn on the receiver and cat /dev/ttyUSB0 the device, only random symbold appear, like this:
...
0
votes
1answer
718 views
gpsd on CentOS 7 not working after yum install
I've installed gpsd 3.10 (also tried 3.16) on CentOS 7 Minimal (yum install gpsd). The following dependencies have been pulled in as well: bluez-libs, gpsd-libs, libusbx. It seems to start up fine ...
4
votes
1answer
699 views
How to add a custom GPS location to a picture?
Given a .jpg picture without associated GPS coordinates, how would you suggest to add custom coordinates to it?
1
vote
0answers
274 views
Running Script on GPS Fix
I am working on an embedded device which is designed to capture images and I want to make it time and location aware. The device is currently a raspberry pi 2 running Debian Jessie.
I have GPS set up ...
2
votes
1answer
6k views
using GPS with Linux & output only certain data
Hello I am currently using BU-353 S4 USB GPS in my Linux,
the command,
cgps -s
Output various parameters including,
Time, Latitutde, Longitute, Speed, Heading etc...
is there any way to output ...
2
votes
0answers
792 views
How to resume the ?WATCH command when a USB GPS is reconnected
I have some hacks to ensure that my USB GPS devices continues spitting data if disconnected, then reconnected. The devices are so flaky that they need restarting so as to continue transmitting data.
...
7
votes
2answers
5k views
How to get ntp to use gpsd to update system date/time with a large offset
I have a GPS connected to my system, and if I change system time to be ahead/behind GPS time by less than 4 hours, ntpd ensures that the system time is updated to match that of the GPS. If, however, ...
