There is no threshold or a way to decide where malloc will get its memory from.
The memory available for the allocator is both the internal (SRAM) and
external SPIRAM, if your request cannot be honored from the internal
memory then the allocator will look into the external memory (but it's
not dete
POSIX does not support this capability with any uniform, standard
interfaces.
NuttX, however, does permit you to create and use as many separate heaps
as you would like to. See interfaces in include/nuttx/mm/mm.h
For an example, look at the standard malloc/free implementation:
mm/umm_heap/
Hello,
I'm running NuttX on an ESP32 with SPIRAM, when using malloc in an app,
what is the threshold, if any, used in the decision of allocating internal
or external memory?
Is this a config parameter?
Is there a proper way to control which region (internal or external) a
specific allocation will
