esp-idf/components/esp_driver_rmt/Kconfig

menu "ESP-Driver:RMT Configurations"
    depends on SOC_RMT_SUPPORTED

    config RMT_ISR_HANDLER_IN_IRAM
        bool "Place RMT ISR handler into IRAM"
        select GDMA_CTRL_FUNC_IN_IRAM if SOC_RMT_SUPPORT_DMA
        select RMT_OBJ_CACHE_SAFE
        default y
        help
            Place RMT ISR handler into IRAM for better performance and fewer cache misses.

    config RMT_RECV_FUNC_IN_IRAM
        bool "Place RMT receive function into IRAM"
        default n
        select GDMA_CTRL_FUNC_IN_IRAM if SOC_RMT_SUPPORT_DMA
        select RMT_OBJ_CACHE_SAFE
        help
            Place RMT receive function into IRAM for better performance and fewer cache misses.

    config RMT_ISR_CACHE_SAFE
        bool "RMT ISR Cache-Safe"
        select GDMA_ISR_IRAM_SAFE if SOC_RMT_SUPPORT_DMA
        select RMT_ISR_HANDLER_IN_IRAM
        default n
        help
            Ensure the RMT interrupt is Cache-Safe by allowing the interrupt handler to be
            executable when the cache is disabled (e.g. SPI Flash write).

    config RMT_OBJ_CACHE_SAFE
        bool
        default n
        help
            This will ensure the RMT object will not be allocated from a memory region
            where its cache can be disabled.

    config RMT_ENABLE_DEBUG_LOG
        bool "Force enable debug log"
        default n
        help
            If enabled, RMT driver component will:
            1. ignore the global logging settings
            2. compile all log messages into the binary
            3. set the runtime log level to VERBOSE
            Please enable this option by caution, as it will increase the binary size.

endmenu