esp-idf/components/esp32/Kconfig

menu "ESP32-specific config"

choice ESP32_DEFAULT_CPU_FREQ_MHZ
    prompt "CPU frequency"
    default ESP32_DEFAULT_CPU_FREQ_240
    help
        CPU frequency to be set on application startup.

config ESP32_DEFAULT_CPU_FREQ_80
    bool "80 MHz"
config ESP32_DEFAULT_CPU_FREQ_160
    bool "160 MHz"
config ESP32_DEFAULT_CPU_FREQ_240
    bool "240 MHz"
endchoice

config ESP32_DEFAULT_CPU_FREQ_MHZ
    int
    default 80 if ESP32_DEFAULT_CPU_FREQ_80
    default 160 if ESP32_DEFAULT_CPU_FREQ_160
    default 240 if ESP32_DEFAULT_CPU_FREQ_240

choice ESP32_WIFI_OR_BT
    prompt "Select stack to enable (WiFi or BT)"
    default ESP32_ENABLE_WIFI
    help
        Temporarily, WiFi and BT stacks can not be used at the same time.
        Select which stack to enable.

config ESP32_ENABLE_STACK_WIFI
    bool "WiFi"
    select WIFI_ENABLED if ESP32_ENABLE_STACK_WIFI
config ESP32_ENABLE_STACK_BT
    bool "BT"
    select MEMMAP_BT if ESP32_ENABLE_STACK_BT
    select BT_ENABLED if ESP32_ENABLE_STACK_BT
config ESP32_ENABLE_STACK_NONE
    bool "None"
endchoice

config MEMMAP_BT
    bool
    depends on ESP32_ENABLE_STACK_BT
    help
        The Bluetooth stack uses memory that cannot be used as generic memory anymore. This
        reserves the space for that within the memory map of the compiled binary.
        This option is required to enable BT stack.
        Temporarily, this option is not compatible with WiFi stack.

config MEMMAP_SMP
    bool "Reserve memory for two cores"
    default "y"
    help
        The ESP32 contains two cores. If you plan to only use one, you can disable this item
        to save some memory. (ToDo: Make this automatically depend on unicore support)

config MEMMAP_TRACEMEM
    bool "Use TRAX tracing feature"
    default "n"
    help
        The ESP32 contains a feature which allows you to trace the execution path the processor
        has taken through the program. This is stored in a chunk of 32K (16K for single-processor)
        of memory that can't be used for general purposes anymore. Disable this if you do not know
        what this is.

# Memory to reverse for trace, used in linker script
config TRACEMEM_RESERVE_DRAM
    hex
    default 0x8000 if MEMMAP_TRACEMEM
    default 0x0

config MEMMAP_SPISRAM
    bool "Use external SPI SRAM chip as main memory"
    default "n"
    help
        The ESP32 can control an external SPI SRAM chip, adding the memory it contains to the 
        main memory map. Enable this if you have this hardware and want to use it in the same
        way as on-chip RAM.

config WIFI_ENABLED
    bool
    default "y"
    depends on ESP32_ENABLE_STACK_WIFI
    help
        This compiles in the low-level WiFi stack.

        Temporarily, this option is not compatible with BT stack.

config SYSTEM_EVENT_QUEUE_SIZE
    int "System event queue size"
    default 32
    help
        Config system event queue size in different application.

config SYSTEM_EVENT_TASK_STACK_SIZE
    int "Event loop task stack size"
    default 2048
    help
        Config system event task stack size in different application.


config MAIN_TASK_STACK_SIZE
    int "Main task stack size"
    default 4096
    help
        Config system event task stack size in different application.


config NEWLIB_STDOUT_ADDCR
    bool "Standard-out output adds carriage return before newline"
    default y
    help
        Most people are used to end their printf strings with a newline. If this
        is sent as is to the serial port, most terminal programs will only move the
        cursor one line down, not also move it to the beginning of the line. This
        is usually done by an added CR character. Enabling this will make the
        standard output code automatically add a CR character before a LF.

config ULP_COPROC_ENABLED
    bool "Enable Ultra Low Power (ULP) Coprocessor"
    default "n"
    help
        Set to 'y' if you plan to load a firmware for the coprocessor.

        If this option is enabled, further coprocessor configuration will appear in the Components menu.

config ULP_COPROC_RESERVE_MEM
    int "RTC slow memory reserved for coprocessor"
    default 512
    range 32 8192
    depends on ULP_COPROC_ENABLED
    help
        Bytes of memory to reserve for ULP coprocessor firmware & data.

        Data is reserved at the beginning of RTC slow memory.

# Set CONFIG_ULP_COPROC_RESERVE_MEM to 0 if ULP is disabled
config ULP_COPROC_RESERVE_MEM
    int
    default 0
    depends on !ULP_COPROC_ENABLED

endmenu