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Merge branch 'fix/issue-18391-psram-default-docs' into 'master'

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docs: clarify PSRAM default allocation behavior

See merge request espressif/esp-idf!46985
This commit is contained in:
Marius Vikhammer
2026-03-26 10:18:22 +08:00
parent 876b9581bd c1256efd67
commit 1cab04c24f
5 changed files with 32 additions and 7 deletions
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components/esp_psram/Kconfig.spiram.common
+10 -1
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@@ -71,7 +71,16 @@ choice SPIRAM_USE
config SPIRAM_USE_MEMMAP
bool "Integrate RAM into memory map"
config SPIRAM_USE_CAPS_ALLOC
bool "Make RAM allocatable using heap_caps_malloc(..., MALLOC_CAP_SPIRAM)"
bool "Add RAM to heap_caps allocator (malloc() stays internal by default)"
help
Add SPI RAM to the capability allocator.
Use heap_caps_malloc(..., MALLOC_CAP_SPIRAM) to explicitly allocate
from SPI RAM. SPI RAM may also be returned by
heap_caps_malloc(..., MALLOC_CAP_DEFAULT), since this heap is also
registered with MALLOC_CAP_DEFAULT.
Standard malloc() does not allocate from SPI RAM by default in this mode.
config SPIRAM_USE_MALLOC
bool "Make RAM allocatable using malloc() as well"
select FREERTOS_SUPPORT_STATIC_ALLOCATION