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# Kconfig settings for Atmel SAMD processors
if MACH_ATSAMD
config ATSAMD_SELECT
bool
default y
select HAVE_GPIO
select HAVE_GPIO_ADC
select HAVE_GPIO_I2C
select HAVE_GPIO_SPI
select HAVE_GPIO_HARD_PWM if MACH_SAMD21
select HAVE_GPIO_BITBANGING
config BOARD_DIRECTORY
string
default "atsamd"
choice
prompt "Processor model"
config MACH_SAMD21G18
bool "SAMD21G18 (Arduino Zero)"
select MACH_SAMD21
config MACH_SAMD51G19
bool "SAMD51G19 (Adafruit ItsyBitsy M4)"
select MACH_SAMD51
config MACH_SAMD51J19
bool "SAMD51J19 (Adafruit Metro M4)"
select MACH_SAMD51
config MACH_SAMD51N19
bool "SAMD51N19"
select MACH_SAMD51
config MACH_SAMD51P20
bool "SAMD51P20 (Adafruit Grand Central)"
select MACH_SAMD51
endchoice
config MACH_SAMD21
bool
config MACH_SAMD51
bool
config MCU
string
default "samd21g18a" if MACH_SAMD21G18
default "samd51g19a" if MACH_SAMD51G19
default "samd51j19a" if MACH_SAMD51J19
default "samd51n19a" if MACH_SAMD51N19
default "samd51p20a" if MACH_SAMD51P20
config CLOCK_FREQ
int
default 48000000 if MACH_SAMD21
default 120000000 if MACH_SAMD51
config FLASH_SIZE
hex
default 0x40000 if MACH_SAMD21G18
default 0x80000 if MACH_SAMD51G19 || MACH_SAMD51J19 || MACH_SAMD51N19
default 0x100000 if MACH_SAMD51P20
config RAM_SIZE
hex
default 0x8000 if MACH_SAMD21G18
default 0x30000 if MACH_SAMD51G19 || MACH_SAMD51J19 || MACH_SAMD51N19
default 0x40000 if MACH_SAMD51P20
config STACK_SIZE
int
default 512
choice
prompt "Clock Reference"
config CLOCK_REF_X32K
bool "32.768Khz crystal"
config CLOCK_REF_INTERNAL
bool "Internal clock"
endchoice
choice
prompt "Bootloader offset"
config FLASH_START_2000
depends on MACH_SAMD21
bool "8KiB bootloader (Arduino Zero)"
config FLASH_START_4000
bool "16KiB bootloader (Arduino M0)"
config FLASH_START_0000
bool "No bootloader"
endchoice
config FLASH_START
hex
default 0x4000 if FLASH_START_4000
default 0x2000 if FLASH_START_2000
default 0x0000
config USBSERIAL
bool "Use USB for communication (instead of serial)" if MACH_SAMD21
default y
config SERIAL
depends on !USBSERIAL
bool
default y
config HAVE_SERCOM
depends on HAVE_GPIO_I2C || HAVE_GPIO_SPI
bool
default y
endif
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