1. Add your region in the 'sct' file.
; Load Region -------------------------------------------------
LR0 iRAM0_BASE iRAM0_SIZE
{
...
TUBE_REGION (DRAM_END-STACK_SIZE-4)
{
test_debug.o (tube_region)
}
ARM_LIB_STACK (DRAM_END-STACK_SIZE) EMPTY STACK_SIZE {}
ARM_LIB_HEAP +0 EMPTY HEAP_SIZE {}
}
2. In test_debug.c code, use 'attribute' and 'section' to assign the region.
volatile int* TUBE_ADD __attribute__((section("tube_region"), zero_init));
#define TUBE *((volatile int *) (TUBE_ADD))
3. After building the code, check the map file.
TUBE_ADD 0x1002b7fc Data 4 sdl_debug.o(tube_region)
Image$$ARM_LIB_HEAP$$ZI$$Base 0x1002c000 Number 0 anon$$obj.o(ARM_LIB_HEAP.bss)
Image$$ARM_LIB_HEAP$$ZI$$Limit 0x1002c000 Number 0 anon$$obj.o(ARM_LIB_HEAP.bss)
Image$$ARM_LIB_STACK$$ZI$$Limit 0x1002c000 Number 0 anon$$obj.o(ARM_LIB_STACK.bss)