CCS/MSP430F5529: Changing the Heap size in Project Properties does not seem to change the actual size during run time.

Is there a -heap or --heap_size option in the linker command file?

Using a -heap or --heap_size option in the linker command file overrides the setting made in the CCS project properties.

Joseph Dobesh said:

I noticed that __SYSMEM_SIZE never changes even when I change the Heap size in Project->Properties->Build->MSP Linker->Basic Options->->Set C system stack size.

The heap size is set from the "Heap size C/C++ dynamic memory allocation (--heap_size, -heap)", not from the "Set C system stack size (--stack_size, -stack)" option in the CCS project properties.

[Not sure if there is a typo in your post, or if you changed the stack rather than heap size in the CCS project properties]