esp-idf/examples/openthread/ot_br/sdkconfig.defaults.esp32s2

#
# ESP PSRAM
#
CONFIG_SPIRAM=y
CONFIG_SPIRAM_ALLOW_BSS_SEG_EXTERNAL_MEMORY=y
# end of ESP PSRAM

#
# OpenThread
#
CONFIG_OPENTHREAD_PLATFORM_MSGPOOL_MANAGEMENT=y
# end of OpenThread