circuitpython/ports/esp32/boards/sdkconfig.spiram

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# MicroPython on ESP32, ESP IDF configuration with SPIRAM support
CONFIG_SPIRAM=y
CONFIG_SPIRAM_CACHE_WORKAROUND=y
CONFIG_SPIRAM_IGNORE_NOTFOUND=y
CONFIG_SPIRAM_USE_MALLOC=y
# This is the threshold for preferring small allocations from internal memory
# first, before failing over to PSRAM.
CONFIG_SPIRAM_MALLOC_ALWAYSINTERNAL=8192
# SPIRAM increases the size of the firmware and overflows iram0_0_seg, due
# to PSRAM bug workarounds. Apply some options to reduce the firmware size.
CONFIG_COMPILER_OPTIMIZATION_SIZE=y
CONFIG_FREERTOS_PLACE_FUNCTIONS_INTO_FLASH=y