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doc: update document of external memory

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TianZhongXing
2018-09-21 14:33:18 +08:00
parent 19a67271ef
commit 01308df8a6
7 changed files with 46 additions and 40 deletions
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components/esp32/Kconfig
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@@ -41,7 +41,7 @@ config SPIRAM_BOOT_INIT
config SPIRAM_IGNORE_NOTFOUND
bool "Ignore PSRAM when not found"
default "n"
depends on SPIRAM_BOOT_INIT
depends on SPIRAM_BOOT_INIT && !SPIRAM_ALLOW_BSS_SEG_EXTERNAL_MEMORY
help
Normally, if psram initialization is enabled during compile time but not found at runtime, it
is seen as an error making the ESP32 panic. If this is enabled, the ESP32 will keep on
@@ -178,7 +178,8 @@ config SPIRAM_ALLOW_BSS_SEG_EXTERNAL_MEMORY
depends on SPIRAM_SUPPORT
help
If enabled the option,and add EXT_RAM_ATTR defined your variable,then your variable will be placed
in PSRAM instead of internal memory.
in PSRAM instead of internal memory, and placed most of variables of lwip,net802.11,pp,bluedroid library
to external memory defaultly.
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