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.

    config EXAMPLE_FORMAT_SD_CARD
        bool "Format the card as a part of the example"
        default n
        help
            If this config item is set, the card will be formatted as a part of the example.

    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

    config EXAMPLE_SDMMC_IO_POWER_INTERNAL_LDO
        depends on SOC_SDMMC_IO_POWER_EXTERNAL
        bool "SDMMC IO power supply comes from internal LDO (READ HELP!)"
        default y
        help
            Please read the schematic first and check if the SDMMC VDD is connected to any internal LDO output.
            If the SDMMC is powered by an external supplier, unselect me

    config EXAMPLE_SDMMC_IO_LDO_ID
        depends on SOC_SDMMC_IO_POWER_EXTERNAL
        int "LDO ID"
        default 4
        help
            Please read the schematic first and input your LDO ID
endmenu