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ttlappalainen / NMEA2000

NMEA2000 library for Arduino
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Building an executable from NMEA2000ToNMEA0183 example code #113

Open davidsanner opened 6 years ago

davidsanner commented 6 years ago

I have a RPi3 w/ a can0 interface (using canable.io) and would like to output 0183 to kplex (FIFO or tcp) I've cloned: NMEA0183 NMEA2000 NMEA2000_socketCAN with some success in compiling things but not much when linking.

I was able to build libnmea2000.a using cmake/make but running into a wall getting the NMEA2000ToNMEA0183 example to build/link.

Am I missing something obvious to build NMEA2000ToNMEA0183? What does it need to link to? Thanks.

ttlappalainen commented 6 years ago

Those should be all necessary libraries. But did you also build NMEA0183 and NMEA2000_socketCAN?

davidsanner commented 6 years ago

I was able to manually (no make file) compile all of the .cpp files into .o and create using cmake/make the libnmea2000.a library. I'm just not having any luck linking them into an executable for the main.cpp example code in NMEA2000ToNMEA0183

example of compile:
cwd: ... NMEA0183/ g++ -o NMEA0183LinuxStream.o -c NMEA0183LinuxStream.cpp and cwd: ... NMEA2000/Examples/NMEA2000ToNMEA0183 g++ -I ../../src -I ../../../NMEA2000_socketCAN/ -I ../../../NMEA0183/ -c -o N2kDataToNMEA0183.o N2kDataToNMEA0183.cpp g++ -I ../../src -I ../../../NMEA2000_socketCAN/ -I ../../../NMEA0183/ -o main.o -c main.cpp

I'm just sure what/how to link them into an executable. I've been trying many combinations of something like this: g++ N2kDataToNMEA0183.o main.o -o main ../../src____.o ../../src/libnmea2000.a
Am I missing something obvious? A build tool, common library? Thanks much.

ttlappalainen commented 6 years ago

Sorry I am not familiar with g++ make files. That is why I used Code Block environment, where it is easy to add necessary files to project. I would have like to use Atom and Platform IO, but could not find a way to get it running on RPi. The Code Block is easy. The one trick to get it stable was to disable Code completition: Plugins-Manage plugins... disable Code completition

davidsanner commented 6 years ago

codeblock! I was able to compile after a few links back to the projects from lib dir. Thanks. NMEA0183 -> ../../../../NMEA0183 NMEA2000 -> ../../../../NMEA2000 NMEA2000_socketCAN -> ../../../../NMEA2000_socketCAN/ ( cwd: NMEA0183/Examples/NMEA2000ToNMEA0183/lib ) And making sure it could find all the .h files.

I was going to see if I could get the RMC output w/ 100th of a second resolution (guess work off of millis since last GNSS time update). I was noticing that with my current 10Hz rapid update GPS & Heading sensor all I'm seeing in the output is HDG/VTG/RMC ... no ROT or GLL even though there's some code to support those sentences and it's reading PGN's like 127251 (GSV would be nice as well w/ 129540 & Attitude - pitch/roll with 127257). ROT just not enabled?

(btw, I had a great time in Turku & out on a tiny island there years back... Finland!)