EagleTRT GPS System for Fenice

GPS parser which read raw GPS messages, selects only the valid ones and sends them to CAN bus

Compiling

GPS Logger

gps_logger works both with a real GPS connected via USB and with GPS simulator of Eagle-CLI

In order to compile it you can just do

gcc gps_logger.c -O3 -lm -o gps_logger

The genereted executable works with the real GPS, but if you want to test the GPS with the simulator you should use the TEST flag

gcc gps_logger.c -O3 -lm -D TEST -o gps_logger

Keep gpslib.h in the same folder of the gps_logger

CAN Listener

In order to start and stop the GPS logger when needed, there is can-listener which looks for the starting/ending CAN messages sent to the telemetry, so it is easier to find the desired data later, based on timestamp of the execution

In order to compile it you can just do

gcc can_listener.c -o can_listener

Makefile

You can also just use make command to compile the source files (only working with the real GPS compilation for now)

Executing

GPS Logger

To execute it you should also provide the port where it is connected and the path to the folder where you want to save the logs

If you are using the real GPS the port should be /dev/ttyACM0, but after some plugs and unplugs the number could change since it is a serial port

./gps_logger /dev/ttyACM0 /path/to/gps/log/folder also port

If you are simulating the GPS the port should be /dev/pts/n, where n is a number

./gps_logger /dev/pts/n /path/to/gps/log/folder

CAN Listener

When you execute this script you can also provide a different path of the GPS Logger, otherwise it supposed to be in the same folder and it searches for it there

Moreover you need to define the folder where the GPS Logger would save its data

./can_listener /path/to/gps/log/folder

./can_listener /path/to/gps_logger /path/to/gps/log/folder

Systemd service for CAN Listener

You can also use a service to keep the CAN Listener executing, searching for the activation/idle service. Remember to edit the ExecStart option providing can_listener path

TODO

• Format and upload the code
• Pass the log paths
• Print informations on the screen