esp-idf/components/esp_psram/esp32p4/Kconfig.spiram

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config SPIRAM
bool "Support for external PSRAM"
default "n"
help
This enables support for an external PSRAM chip, connected in parallel with the
main SPI flash chip.
menu "PSRAM config"
depends on SPIRAM
choice SPIRAM_MODE
prompt "Line Mode of PSRAM chip in use"
default SPIRAM_MODE_HEX
config SPIRAM_MODE_HEX
bool "16-Line-Mode PSRAM"
endchoice
config SPIRAM_USE_8LINE_MODE
bool
depends on SPIRAM_MODE_HEX
default n
help
Enable 8-Line-Mode of the AP HEX PSRAM
choice SPIRAM_SPEED
prompt "Set PSRAM clock speed"
default SPIRAM_SPEED_20M
help
Select the speed for the PSRAM chip.
config SPIRAM_SPEED_20M
bool "20MHz clock speed"
endchoice
config SPIRAM_SPEED
int
default 20 if SPIRAM_SPEED_20M
config SPIRAM_ECC_ENABLE
bool "Enable PSRAM ECC"
default n
help
Enable Error-Correcting Code function when accessing PSRAM.
If enabled, 1/8 of the PSRAM total size will be reserved for error-correcting code.
config SPIRAM_ALLOW_STACK_EXTERNAL_MEMORY
bool "Allow external memory as an argument to xTaskCreateStatic"
default y
help
Accessing memory in PSRAM has certain restrictions, so task stacks allocated by xTaskCreate
are by default allocated from internal RAM.
This option allows for passing memory allocated from PSRAM to be passed to xTaskCreateStatic.
This should only be used for tasks where the stack is never accessed while the L2Cache is
disabled, e.g. during SPI Flash operations
source "$IDF_PATH/components/esp_psram/Kconfig.spiram.common" # insert non-chip-specific items here
endmenu