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c20f993747
Some boards may not support SPI transfers. Update the build so that those commands do not need to be compiled if they are not available. Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
92 lines
2 KiB
Text
92 lines
2 KiB
Text
# Kconfig settings for AVR processors
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if MACH_AVR
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config AVR_SELECT
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bool
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default y
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select HAVE_GPIO_ADC
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select HAVE_GPIO_SPI
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config BOARD_DIRECTORY
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string
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default "avr"
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choice
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prompt "Processor model"
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config MACH_atmega168
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bool "atmega168"
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config MACH_atmega644p
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bool "atmega644p"
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config MACH_at90usb1286
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bool "at90usb1286"
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config MACH_atmega1280
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bool "atmega1280"
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config MACH_atmega2560
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bool "atmega2560"
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endchoice
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config MCU
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string
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default "atmega168" if MACH_atmega168
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default "atmega644p" if MACH_atmega644p
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default "at90usb1286" if MACH_at90usb1286
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default "atmega1280" if MACH_atmega1280
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default "atmega2560" if MACH_atmega2560
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choice
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prompt "Processor speed"
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config AVR_FREQ_8000000
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bool "8Mhz"
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config AVR_FREQ_16000000
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bool "16Mhz"
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config AVR_FREQ_20000000
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bool "20Mhz"
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endchoice
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config CLOCK_FREQ
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int
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default 8000000 if AVR_FREQ_8000000
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default 16000000 if AVR_FREQ_16000000
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default 20000000 if AVR_FREQ_20000000
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config CLEAR_PRESCALER
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bool "Manually clear the CPU prescaler field at startup"
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default n
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help
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Some AVR chips ship with a "clock prescaler" that causes the
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chip to run at 1/8th speed. Enable this setting to clear the
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prescaler field at startup which will cause the chip to run
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without a clock divisor.
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config AVR_CLKPR
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int
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default 0 if CLEAR_PRESCALER
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default -1
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config AVR_STACK_SIZE
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int
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default 256 if MACH_atmega2560
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default 128
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config AVR_WATCHDOG
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bool "Support for automated reset on watchdog timeout"
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default y
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config AVR_USBSERIAL
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bool
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depends on MACH_at90usb1286
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default y
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config AVR_SERIAL
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depends on !AVR_USBSERIAL
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bool
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default y
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config SERIAL_BAUD
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depends on AVR_SERIAL
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int "Baud rate for serial port"
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default 250000
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config SERIAL_BAUD_U2X
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depends on AVR_SERIAL
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bool "Use AVR Baud 2X mode"
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default y
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endif
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