IAR Embedded Workbench for RX 5.20IDE Project Management and BuildingGeneral optionsDescription of general optionsStack/HeapStack/HeapIn this section: The Stack/Heap options determine the heap and stack sizes.For more information about using the stacks and the heap, see the IAR C/C++ Development documentation.User mode stack sizeSpecify the user mode stack size.Supervisor mode stack sizeSpecify the supervisor mode stack size.Heap sizeSpecify the heap size.