esp-idf/examples/storage/sd_card/sdmmc/main/Kconfig.projbuild

menu "SD/MMC Example Configuration"

    config EXAMPLE_FORMAT_IF_MOUNT_FAILED
        bool "Format the card if mount failed"
        default n
        help
            If this config item is set, format_if_mount_failed will be set to true and the card will be formatted if
            the mount has failed.

    choice EXAMPLE_SDMMC_BUS_WIDTH
        prompt "SD/MMC bus width"
        default EXAMPLE_SDMMC_BUS_WIDTH_4
        help
            Select the bus width of SD or MMC interface.
            Note that even if 1 line mode is used, D3 pin of the SD card must have a pull-up resistor connected.
            Otherwise the card may enter SPI mode, the only way to recover from which is to cycle power to the card.

        config EXAMPLE_SDMMC_BUS_WIDTH_4
            bool "4 lines (D0 - D3)"

        config EXAMPLE_SDMMC_BUS_WIDTH_1
            bool "1 line (D0)"
    endchoice

    if SOC_SDMMC_USE_GPIO_MATRIX

        config EXAMPLE_PIN_CMD
            int "CMD GPIO number"
            default 35 if IDF_TARGET_ESP32S3
            default 44 if IDF_TARGET_ESP32P4

        config EXAMPLE_PIN_CLK
            int "CLK GPIO number"
            default 36 if IDF_TARGET_ESP32S3
            default 43 if IDF_TARGET_ESP32P4

        config EXAMPLE_PIN_D0
            int "D0 GPIO number"
            default 37 if IDF_TARGET_ESP32S3
            default 39 if IDF_TARGET_ESP32P4

        if EXAMPLE_SDMMC_BUS_WIDTH_4

            config EXAMPLE_PIN_D1
                int "D1 GPIO number"
                default 38 if IDF_TARGET_ESP32S3
                default 40 if IDF_TARGET_ESP32P4

            config EXAMPLE_PIN_D2
                int "D2 GPIO number"
                default 33 if IDF_TARGET_ESP32S3
                default 41 if IDF_TARGET_ESP32P4

            config EXAMPLE_PIN_D3
                int "D3 GPIO number"
                default 34 if IDF_TARGET_ESP32S3
                default 42 if IDF_TARGET_ESP32P4

        endif  # EXAMPLE_SDMMC_BUS_WIDTH_4

    endif  # SOC_SDMMC_USE_GPIO_MATRIX

    config EXAMPLE_DEBUG_PIN_CONNECTIONS
        bool "Debug sd pin connections and pullup strength"
        default n

    if !SOC_SDMMC_USE_GPIO_MATRIX
        config EXAMPLE_PIN_CMD
            depends on EXAMPLE_DEBUG_PIN_CONNECTIONS
            default 15 if IDF_TARGET_ESP32

        config EXAMPLE_PIN_CLK
            depends on EXAMPLE_DEBUG_PIN_CONNECTIONS
            default 14 if IDF_TARGET_ESP32

        config EXAMPLE_PIN_D0
            depends on EXAMPLE_DEBUG_PIN_CONNECTIONS
            default 2 if IDF_TARGET_ESP32

        if EXAMPLE_SDMMC_BUS_WIDTH_4

            config EXAMPLE_PIN_D1
                depends on EXAMPLE_DEBUG_PIN_CONNECTIONS
                default 4 if IDF_TARGET_ESP32

            config EXAMPLE_PIN_D2
                depends on EXAMPLE_DEBUG_PIN_CONNECTIONS
                default 12 if IDF_TARGET_ESP32

            config EXAMPLE_PIN_D3
                depends on EXAMPLE_DEBUG_PIN_CONNECTIONS
                default 13 if IDF_TARGET_ESP32

        endif  # EXAMPLE_SDMMC_BUS_WIDTH_4
    endif

    config EXAMPLE_ENABLE_ADC_FEATURE
        bool "Enable ADC feature"
        depends on EXAMPLE_DEBUG_PIN_CONNECTIONS
        default y if IDF_TARGET_ESP32
        default n

    config EXAMPLE_ADC_UNIT
        int "ADC Unit"
        depends on EXAMPLE_ENABLE_ADC_FEATURE
        default 1 if IDF_TARGET_ESP32
        default 1

    config EXAMPLE_ADC_PIN_CLK
        int "CLK mapped ADC pin"
        depends on EXAMPLE_ENABLE_ADC_FEATURE
        default 6 if IDF_TARGET_ESP32
        default 1

    config EXAMPLE_ADC_PIN_CMD
        int "CMD mapped ADC pin"
        depends on EXAMPLE_ENABLE_ADC_FEATURE
        default 3 if IDF_TARGET_ESP32
        default 1

    config EXAMPLE_ADC_PIN_D0
        int "D0 mapped ADC pin"
        depends on EXAMPLE_ENABLE_ADC_FEATURE
        default 2 if IDF_TARGET_ESP32
        default 1

    if EXAMPLE_SDMMC_BUS_WIDTH_4

        config EXAMPLE_ADC_PIN_D1
            int "D1 mapped ADC pin"
            depends on EXAMPLE_ENABLE_ADC_FEATURE
            default 0 if IDF_TARGET_ESP32
            default 1

        config EXAMPLE_ADC_PIN_D2
            int "D2 mapped ADC pin"
            depends on EXAMPLE_ENABLE_ADC_FEATURE
            default 5 if IDF_TARGET_ESP32
            default 1

        config EXAMPLE_ADC_PIN_D3
            int "D3 mapped ADC pin"
            depends on EXAMPLE_ENABLE_ADC_FEATURE
            default 4 if IDF_TARGET_ESP32
            default 1

    endif  # EXAMPLE_SDMMC_BUS_WIDTH_4

endmenu