klipper/src/stm32/Kconfig

# Kconfig settings for STM32 processors

if MACH_STM32

config STM32_SELECT
    bool
    default y
    select HAVE_GPIO
    select HAVE_GPIO_ADC
    select HAVE_GPIO_I2C
    select HAVE_GPIO_SPI
    select HAVE_GPIO_BITBANGING
    select HAVE_CHIPID

config BOARD_DIRECTORY
    string
    default "stm32"

choice
    prompt "Processor model"
    config MACH_STM32F103
        bool "STM32F103"
        select MACH_STM32F1
    config MACH_STM32F405
        bool "STM32F405"
        select MACH_STM32F4
    config MACH_STM32F407
        bool "STM32F407"
        select MACH_STM32F4
    config MACH_STM32F446
        bool "STM32F446"
        select MACH_STM32F4
    config MACH_STM32F042
        bool "STM32F042"
        select MACH_STM32F0
    config MACH_STM32F070
        bool "STM32F070"
        select MACH_STM32F0
endchoice

config MACH_STM32F0
    bool
config MACH_STM32F1
    bool
config MACH_STM32F4
    bool
config HAVE_STM32_USBFS
    bool
    default y if MACH_STM32F103 || MACH_STM32F0
    default n
config HAVE_STM32_USBOTG
    bool
    default y if MACH_STM32F4
    default n

config MCU
    string
    default "stm32f042x6" if MACH_STM32F042
    default "stm32f070xb" if MACH_STM32F070
    default "stm32f103xe" if MACH_STM32F103
    default "stm32f405xx" if MACH_STM32F405
    default "stm32f407xx" if MACH_STM32F407
    default "stm32f446xx" if MACH_STM32F446

config CLOCK_FREQ
    int
    default 48000000 if MACH_STM32F0
    default 72000000 if MACH_STM32F103
    default 168000000 if MACH_STM32F405 || MACH_STM32F407
    default 180000000 if MACH_STM32F446

config FLASH_SIZE
    hex
    default 0x8000 if MACH_STM32F042
    default 0x20000 if MACH_STM32F070
    default 0x10000 if MACH_STM32F103
    default 0x80000 if MACH_STM32F4

config RAM_START
    hex
    default 0x20000000

config RAM_SIZE
    hex
    default 0x1800 if MACH_STM32F042
    default 0x4000 if MACH_STM32F070
    default 0x5000 if MACH_STM32F103
    default 0x20000 if MACH_STM32F4

config STACK_SIZE
    int
    default 512

choice
    prompt "Bootloader offset" if MACH_STM32F407 || MACH_STM32F103
    config STM32_FLASH_START_2000
        bool "8KiB bootloader (stm32duino)" if MACH_STM32F103
    config STM32_FLASH_START_7000
        bool "28KiB bootloader" if MACH_STM32F103
    config STM32_FLASH_START_8000
        bool "32KiB bootloader (SKR-PRO)" if MACH_STM32F407
    config STM32_FLASH_START_0000
        bool "No bootloader"
endchoice
config FLASH_START
    hex
    default 0x8002000 if STM32_FLASH_START_2000
    default 0x8007000 if STM32_FLASH_START_7000
    default 0x8008000 if STM32_FLASH_START_8000
    default 0x8000000

choice
    prompt "Clock Reference" if LOW_LEVEL_OPTIONS
    config STM32_CLOCK_REF_8M
        bool "8 MHz crystal"
    config STM32_CLOCK_REF_12M
        bool "12 MHz crystal"
    config STM32_CLOCK_REF_16M
        bool "16 MHz crystal"
    config STM32_CLOCK_REF_INTERNAL
        bool "Internal clock"
endchoice
config CLOCK_REF_FREQ
    int
    default 16000000 if STM32_CLOCK_REF_16M
    default 12000000 if STM32_CLOCK_REF_12M
    default 1 if STM32_CLOCK_REF_INTERNAL
    default 8000000

config USBSERIAL
    bool "Use USB for communication (instead of serial)"
    depends on HAVE_STM32_USBFS || HAVE_STM32_USBOTG
    default y
config CANSERIAL
    bool "Use CAN for communication (instead of serial)"
    depends on MACH_STM32F042 && !USBSERIAL
    default n
config STM32F042_PIN_SWAP
    bool "Use PA9/PA10 for USB or CAN" if MACH_STM32F042
    depends on (USBSERIAL || CANSERIAL) && MACH_STM32F042
    default n
config SERIAL
    depends on !USBSERIAL && !CANSERIAL
    bool
    default y
choice
    depends on SERIAL
    prompt "Serial Port" if LOW_LEVEL_OPTIONS
    help
        Select the serial device to use.
    config STM32_SERIAL_USART1
        bool "USART1"
    config STM32_SERIAL_USART2
        bool "USART2"
    config STM32_SERIAL_USART3
        bool "USART3"
    config STM32_SERIAL_USART3_ALT
        bool "USART3 (on PD9/PD8)" if MACH_STM32F4
endchoice
config SERIAL_PORT
    int
    default 103 if STM32_SERIAL_USART3_ALT
    default 3 if STM32_SERIAL_USART3
    default 2 if STM32_SERIAL_USART2
    default 1

endif