rtel wrote on Tuesday, August 19, 2014:
If it is already built then it is just a matter of finding a way of creating a debug configuration.
On the speed bar (?) you will see a button with a little green bug on it, and an arrow to the right of it. If you click the arrow you will see “Debug Configurations” as an option. Bring up the the debug configurations dialogue box and you will have options in the left window such as “(NXP Semiconductors) MCU application” “C/C++ Application”, etc.
What happens if you click the “C/C++ Application” option to create a debug configuration? You should be able to fill in the various tabs to point it at the PE (.exe) file generated by MingW and start a debug session.
No idea if that will work in LPCXpresso - but that is how it is done in vanilla Eclipse.