Doe Keil IDE support initializing stack space with a constant? For example with a #define. If not, please does someone have ARM Cortex M3/M4 assembler code to do that and where should it be located? For example in startup*.s prior to the branch to main?
Hi John,
Why modify the scatter file? It's not easy to put the code in the stack initalisation? The ram is initialized before.
__user_initial_stackheap LDR R0, =Stack_Mem ; Test stack LDR R1, =Stack_Size ; LDR R2, =0xCCCCCCCC ; Fill STR R2, [R0], #4 ; SUBS R1,#4 ; BNE Fill ; LDR R0, = Heap_Mem LDR R1, =(Stack_Mem + Stack_Size) LDR R2, = (Heap_Mem + Heap_Size) LDR R3, = Stack_Mem BX LR ALIGN
thank you for your thread, it helped me a lot.