After some experiment with the now also free Atollic Studio I’m back to System Workbench. There were issues importing projects from CubeMX and FatFS and Lwip.
Atollic is basically the same as SW6 using Eclipse and GCC. They have made is a Memory usage monitor. Something for SW6 future?
Second i have no idea how big to set my Stack and Heap. A method to know how much is used is filling the region with a fixed value at startup and check at running time how many fixed values are stil there.
How to fill the Stack/Heap at startup?
How can my program know the addresses of Stack and Heap?