What is the meaning of Small C library

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hi,

... error saying that " region needs to be larger 7000 bytes etc...".

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This is what I mean "whenever you need a smaller footprint" --> You don't have enough RAM to fit in your program, your program is too big either because it is really big or you code is not effective

So --> Increase the memory size if you are using onchip memory

else try to remove unnecessary code if you can't change the external memory