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This commit is contained in:
J. Nick Koston
2025-11-29 02:44:27 -06:00
parent 64281631a1
commit e7c54598cd
1 changed files with 9 additions and 2 deletions
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11
esphome/components/esp32/__init__.py
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@@ -1008,10 +1008,17 @@ async def to_code(config):
# Place non-ISR FreeRTOS functions into flash instead of IRAM
# This saves up to 8KB of IRAM. ISR-safe functions (FromISR variants) stay in IRAM.
# In ESP-IDF 6.0 this becomes the default and CONFIG_FREERTOS_PLACE_FUNCTIONS_INTO_FLASH
# is removed. We enable this now to match IDF 6.0 behavior and catch any issues early.
# is removed (replaced by CONFIG_FREERTOS_IN_IRAM to restore old behavior).
# We enable this now to match IDF 6.0 behavior and catch any issues early.
# Users can set freertos_in_iram: true as an escape hatch if they encounter problems
# with code that incorrectly calls FreeRTOS functions from ISRs with cache disabled.
if not conf[CONF_ADVANCED][CONF_FREERTOS_IN_IRAM]:
if conf[CONF_ADVANCED][CONF_FREERTOS_IN_IRAM]:
# IDF 5.x: don't set the flash option (keeps functions in IRAM)
# IDF 6.0+: will need CONFIG_FREERTOS_IN_IRAM=y to restore IRAM placement
add_idf_sdkconfig_option("CONFIG_FREERTOS_IN_IRAM", True)
else:
# IDF 5.x: explicitly place functions in flash
# IDF 6.0+: this is the default, option no longer exists
add_idf_sdkconfig_option("CONFIG_FREERTOS_PLACE_FUNCTIONS_INTO_FLASH", True)
# Setup watchdog