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# Kconfig settings for AVR processors
if MACH_AVR
config AVR_SELECT
bool
default y
select HAVE_GPIO
select HAVE_GPIO_ADC
select HAVE_GPIO_SPI
select HAVE_GPIO_I2C
select HAVE_GPIO_HARD_PWM
select HAVE_GPIO_BITBANGING if !MACH_atmega168
select HAVE_STRICT_TIMING
config STEP_DELAY
default -1
config BOARD_DIRECTORY
string
default "avr"
choice
prompt "Processor model"
config MACH_atmega2560
bool "atmega2560"
config MACH_atmega1280
bool "atmega1280"
config MACH_at90usb1286
bool "at90usb1286"
config MACH_at90usb646
bool "at90usb646"
config MACH_atmega32u4
bool "atmega32u4"
config MACH_atmega1284p
bool "atmega1284p"
config MACH_atmega644p
bool "atmega644p"
config MACH_atmega328p
bool "atmega328p"
config MACH_atmega328
bool "atmega328"
config MACH_atmega168
bool "atmega168"
endchoice
config MCU
string
default "atmega168" if MACH_atmega168
default "atmega328" if MACH_atmega328
default "atmega328p" if MACH_atmega328p
default "atmega1284p" if MACH_atmega1284p
default "atmega644p" if MACH_atmega644p
default "at90usb1286" if MACH_at90usb1286
default "at90usb646" if MACH_at90usb646
default "atmega32u4" if MACH_atmega32u4
default "atmega1280" if MACH_atmega1280
default "atmega2560" if MACH_atmega2560
config AVRDUDE_PROTOCOL
string
default "wiring" if MACH_atmega2560
default "avr109" if MACH_at90usb1286 || MACH_at90usb646 || MACH_atmega32u4
default "arduino"
choice
prompt "Processor speed" if LOW_LEVEL_OPTIONS
config AVR_FREQ_16000000
bool "16Mhz"
config AVR_FREQ_20000000
bool "20Mhz"
depends on MACH_atmega168 || MACH_atmega328 || MACH_atmega328p || MACH_atmega644p || MACH_atmega1284p
config AVR_FREQ_8000000
bool "8Mhz"
endchoice
config CLOCK_FREQ
int
default 8000000 if AVR_FREQ_8000000
default 20000000 if AVR_FREQ_20000000
default 16000000
config CLEAR_PRESCALER
bool "Manually clear the CPU prescaler field at startup" if LOW_LEVEL_OPTIONS
depends on MACH_at90usb1286 || MACH_at90usb646 || MACH_atmega32u4
default y
help
Some AVR chips ship with a "clock prescaler" that causes the
chip to run at 1/8th speed. Enable this setting to clear the
prescaler field at startup which will cause the chip to run
without a clock divisor.
config AVR_CLKPR
int
default 0 if CLEAR_PRESCALER
default -1
config AVR_STACK_SIZE
int
default 256
config AVR_WATCHDOG
bool
default y
config USBSERIAL
depends on (MACH_at90usb1286 || MACH_at90usb646 || MACH_atmega32u4) && !AVR_SERIAL_UART1
bool
default y
config SERIAL
depends on !USBSERIAL
bool
default y
choice
prompt "Communication interface" if LOW_LEVEL_OPTIONS && (MACH_atmega2560 || MACH_atmega1280 || MACH_atmega644p || MACH_atmega1284p || MACH_at90usb1286 || MACH_at90usb646 || MACH_atmega32u4)
config AVR_USB
bool "USB" if MACH_at90usb1286 || MACH_at90usb646 || MACH_atmega32u4
select USBSERIAL
config AVR_SERIAL_UART0
bool "UART0" if !(MACH_at90usb1286 || MACH_at90usb646 || MACH_atmega32u4)
select SERIAL
config AVR_SERIAL_UART1
bool "UART1"
select SERIAL
config AVR_SERIAL_UART2
bool "UART2" if MACH_atmega2560 || MACH_atmega1280
select SERIAL
config AVR_SERIAL_UART3
bool "UART3" if MACH_atmega2560 || MACH_atmega1280
select SERIAL
endchoice
config SERIAL_BAUD_U2X
depends on SERIAL && !SIMULAVR
bool
default y
config SERIAL_PORT
int
default 3 if AVR_SERIAL_UART3
default 2 if AVR_SERIAL_UART2
default 1 if AVR_SERIAL_UART1
default 0
config SIMULAVR
depends on MACH_atmega168 || MACH_atmega328 || MACH_atmega328p || MACH_atmega644p || MACH_atmega1284p
bool "Compile for simulavr software emulation" if LOW_LEVEL_OPTIONS
default n
help
Compile the code to run on simulavr software emulation
instead of for real hardware. This disables support for "U2X
baud" mode which is not supported on simulavr.
If unsure, select "N".
endif
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