Hey Erich, In Project -> Properties -> C/C++ build -> Settings -> Tool Settings -> Optimization. In Optimization level, I selected Optimize Size (-Os) and Built the code. From size of 6392, it has come down to 3780. But in the above quoted article of yours, you have changed the Linker flags in the settings and still reduced the size, how is it possible in KDS , as there is no such linker flags option in my IDE.