OVMS3-idf/examples/system/base_mac_address/main/Kconfig.projbuild

menu "Example Configuration"

    choice BASE_MAC_ADDRESS_STORAGE
        prompt "Storage of the base MAC address"
        default BASE_MAC_STORED_EFUSE_BLK0
        help
            Select storage of the base MAC address which is used to generate MAC addresses of all network interfaces
            when networking is initialized.
            If "Default (Espressif factory) eFuse BLK0" is selected, esp32 will use default base MAC address which is
            written into eFuse block 0 words 1, 2 when the chip is manufactured.
            If "Custom eFuse BLK3" is selected, ESP32 will use customer-defined base MAC address which is written into
            eFuse Block 3 words 0, 1. Users must call esp_efuse_mac_get_custom to get base MAC address and
            esp_base_mac_addr_set to set the base MAC address before network interfaces are initialised.
            If "Other external storage" is selected, esp32 will use customer-defined base MAC address from external
            storage(flash, EEPROM, etc). Users must get the base MAC address first and call esp_base_mac_addr_set to
            set the base MAC address before network interfaces are initialised.

        config BASE_MAC_STORED_EFUSE_BLK0
            bool "Default (Espressif factory) eFuse BLK0"
        config BASE_MAC_STORED_EFUSE_BLK3
            bool "Custom eFuse BLK3"
        config BASE_MAC_STORED_OTHER_EXTERNAL_STORAGE
            bool "Other external storage"
    endchoice

    choice BASE_MAC_STORED_EFUSE_BLK3_ERROR_BEHAVIOR
        prompt "Read base MAC address from BLK3 of eFuse error behavior"
        depends on BASE_MAC_STORED_EFUSE_BLK3
        default BASE_MAC_STORED_EFUSE_BLK3_ERROR_USE_DEFAULT
        help
            Select behavior when reading base MAC address from BLK3 of eFuse error.
            If "Abort" is selected, esp32 will abort.
            If "Use base MAC address from BLK3 of eFuse" is selected, esp32 will use the base MAC address which is
            written into eFuse block 0 words 1, 2 when the chip is manufactured.

        config BASE_MAC_STORED_EFUSE_BLK3_ERROR_ABORT
            bool "Abort"
        config BASE_MAC_STORED_EFUSE_BLK3_ERROR_USE_DEFAULT
            bool "Use base MAC address from BLK3 of eFuse"
    endchoice

endmenu