# Kconfig settings for STM32 processors

if MACH_STM32

config ENABLE_STM32F4
    bool

config BOARD_DIRECTORY
    string
    default "stm32"

choice
    prompt "Processor model"
    config MACH_STM32F042
        bool "STM32F042"
        select MACH_STM32F0
        select MACH_STM32F0x2
    config MACH_STM32F072
        bool "STM32F072"
        select MACH_STM32F0
        select MACH_STM32F0x2
    config MACH_STM32F103
        bool "STM32F103"
        select MACH_STM32F1
    config MACH_STM32F207
        bool "STM32F207" if ENABLE_STM32F4
        select MACH_STM32F2
    config MACH_STM32F405
        bool "STM32F405" if ENABLE_STM32F4
        select MACH_STM32F4
        select MACH_STM32F4x5
    config MACH_STM32F407
        bool "STM32F407" if ENABLE_STM32F4
        select MACH_STM32F4
        select MACH_STM32F4x5
    config MACH_STM32F429
        bool "STM32F429" if ENABLE_STM32F4
        select MACH_STM32F4
        select MACH_STM32F4x5
    config MACH_STM32F446
        bool "STM32F446" if ENABLE_STM32F4
        select MACH_STM32F4
endchoice

config MACH_STM32F0
    bool
config MACH_STM32F1
    bool
config MACH_STM32F2
    bool
config MACH_STM32F4
    bool

config MCU
    string
    default "stm32f042x6" if MACH_STM32F042
    default "stm32f072xb" if MACH_STM32F072
    default "stm32f103xe" if MACH_STM32F103
    default "stm32f207xx" if MACH_STM32F207
    default "stm32f405xx" if MACH_STM32F405
    default "stm32f407xx" if MACH_STM32F407
    default "stm32f429xx" if MACH_STM32F429
    default "stm32f446xx" if MACH_STM32F446

config CLOCK_FREQ
    int
    default 48000000 if MACH_STM32F0
    default 64000000 if MACH_STM32F103 && STM32_CLOCK_REF_INTERNAL
    default 72000000 if MACH_STM32F103
    default 120000000 if MACH_STM32F207
    default 168000000 if MACH_STM32F4x5
    default 180000000 if MACH_STM32F446

config FLASH_SIZE
    hex
    default 0x8000 if MACH_STM32F042
    default 0x20000 if MACH_STM32F072
    default 0x10000 if MACH_STM32F103 # Flash size of stm32f103x8 (64KiB)
    default 0x40000 if MACH_STM32F2
    default 0x80000 if MACH_STM32F4

config RAM_START
    hex
    default 0x20000000

config RAM_SIZE
    hex
    default 0x1800 if MACH_STM32F042
    default 0x4000 if MACH_STM32F072
    default 0x5000 if MACH_STM32F103 # Ram size of stm32f103x8 (20KiB)
    default 0x20000 if MACH_STM32F207
    default 0x20000 if MACH_STM32F4

config STACK_SIZE
    int
    default 512

config FLASH_START
    hex
    default 0x8000000

config APPLICATION_START
    hex
    default 0x8002000 if MACH_STM32F103
    default 0x8002000

config ARMCM_RAM_VECTORTABLE
    bool
    default y if MACH_STM32F0 && FLASH_START != 0x8000000
    default n

config STM32F103GD_DISABLE_SWD
    bool "Disable SWD at startup (for GigaDevice stm32f103 clones)"
    depends on MACH_STM32F103
    default n
    help
        The GigaDevice clone of the STM32F103 may not be able to
        reliably disable SWD at run-time. This can prevent the PA13
        and PA14 pins from being available. Selecting this option
        disables SWD at startup and thus makes these pins available.

choice
    prompt "Clock Reference"
    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_25M
        bool "25 MHz crystal"
    config STM32_CLOCK_REF_INTERNAL
        bool "Internal clock"
endchoice
config CLOCK_REF_FREQ
    int
    default 25000000 if STM32_CLOCK_REF_25M
    default 16000000 if STM32_CLOCK_REF_16M
    default 12000000 if STM32_CLOCK_REF_12M
    default 1 if STM32_CLOCK_REF_INTERNAL
    default 8000000

choice
    prompt "CAN pins"
    config STM32_CANBUS_PA11_PA12
        bool "Pins PA11(rx) and PA12(tx)"
    config STM32_CANBUS_PA11_PA12_REMAP
        bool "Pins on PA9(rx) and PA10(tx)" if MACH_STM32F042
    config STM32_CANBUS_PB8_PB9
        bool "Pins PB8(rx) and PB9(tx)"
    config STM32_CANBUS_PI9_PH13
        bool "Pins PI9(rx) and PH13(tx)" if MACH_STM32F4
    config STM32_CANBUS_PB5_PB6
        bool "Pins PB5(rx) and PB6(tx)" if MACH_STM32F4
    config STM32_CANBUS_PB12_PB13
        bool "Pins PB12(rx) and PB13(tx)" if MACH_STM32F4
    config STM32_CANBUS_PD0_PD1
        bool "Pins PD0(rx) and PD1(tx)"
endchoice

config STM32F0_TRIM
    int "Internal clock trim override" if MACH_STM32F0 && STM32_CLOCK_REF_INTERNAL
    default 16
    help
        Specify the internal clock trim value. Setting this can be
        useful if the factory default internal clock is not accurate.
        Default is 16 (use factory default). Each increment increases
        the clock rate by ~240KHz.

choice
depends on MACH_STM32F103
prompt "Flash Page Size"
config STM32F1_PAGE_SIZE_400
    bool "Low/Medium Density (1024 KiB Page Size)"
config STM32F1_PAGE_SIZE_800
    bool "High Density (2048 KiB Page Size)"
endchoice

config FLASH_PAGE_SIZE
    hex
    default 0x400 if MACH_STM32F042
    default 0x800 if MACH_STM32F072
    default 0x400 if MACH_STM32F103 && STM32F1_PAGE_SIZE_400
    default 0x800 if MACH_STM32F103 && STM32F1_PAGE_SIZE_800
    default 0x400

config MAGIC_KEY
    hex
    default 0x85D3 if MACH_STM32F103
    default 0x85D3

config BLOCK_SIZE
    int
    default 64

endif