There are three C/C++ libraries supported in MCUXpresso IDE, Newlib, NewlibNano, and Redlib. Newlib is a standard GNU C/C++ LIB, includes comprehensive functions. NewlibNano is optimized in size of Newlib. And Redlib provide much smaller applications, it isn’t a GUN C library.
MCUXpresso SDK demos use Redlib by default, some customers want to switch libary for balance code size and function.
Especially for small memory embedded chip, recommend use Redlib.
This document mainly includes two parts:
一．Different C/C++ libraries used in MCUXpresso IDE
About detail information , you can also refer to <MCUXpresso_IDE_User_Guide.pdf>.