To debug you can use XCTU, although it's not great. For linux to get it to run properly it will throw some errors, so run these commands and it should work:
sudo apt-get install libxtst6:i386
sudo apt install libgtk2.0-0:i386
It's pretty hacky though so it might take some fiddling
All the radio code is taken from this library, which is a portable ANSIC C library for xbee radios. Our usage of this library essentially consistutes a port for our specific hardware/hal. The code for the library is in the xbee folder. To successfully port this library to our application, several changes had to be made.
- Target declaration
The build tool must first declare the target, and this is done through a preprocessor define statement. For x86 this is done in the CMakeLists.txt in the main directory, whereas in MCUXpresso it is done through the UI, through Project->Properties->C/C++ General->Paths and Symbols->Symbols.
- Removal of uncessesary files
The library supports functionality not needed by us, such as over the air firmware updating and a few others. Since we're not interested in any of this and ports need to to do extra work to make this work, all of the files relating to OTA and commission were removed. This approach was taken from the mbed port, so hopefully this doens't break anything too badly. In addition, we have to implement xbee_frame_handlers as the frame handler. The way this is set up (using external variables on the assumption the user will implement them) is pretty weird, but that's the way it works.
- Writing of the port
To write the port, many functions had to be implemented that used platform specific code. To see what had to be implemented everything was based on the posix port here. Our port is called whistler and can be seen here.
To make calling radio functions easier for our specific use case, I wrote a few wrapper functions in radio.h. See there for documentation on these functions.