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@@ -1,5 +1,5 @@
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# MCU name
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-MCU ?= atmega32u4
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+MCU = atmega32u4
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# Processor frequency.
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# This will define a symbol, F_CPU, in all source code files equal to the
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@@ -12,14 +12,14 @@ MCU ?= atmega32u4
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# does not *change* the processor frequency - it should merely be updated to
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# reflect the processor speed set externally so that the code can use accurate
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# software delays.
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-F_CPU ?= 16000000
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+F_CPU = 16000000
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#
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# LUFA specific
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#
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# Target architecture (see library "Board Types" documentation).
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-ARCH ?= AVR8
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+ARCH = AVR8
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# Input clock frequency.
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# This will define a symbol, F_USB, in all source code files equal to the
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@@ -32,7 +32,7 @@ ARCH ?= AVR8
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#
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# If no clock division is performed on the input clock inside the AVR (via the
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# CPU clock adjust registers or the clock division fuses), this will be equal to F_CPU.
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-F_USB ?= $(F_CPU)
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+F_USB = $(F_CPU)
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# Interrupt driven control endpoint task(+60)
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OPT_DEFS += -DINTERRUPT_CONTROL_ENDPOINT
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@@ -50,14 +50,14 @@ OPT_DEFS += -DBOOTLOADER_SIZE=4096
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# Build Options
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# comment out to disable the options.
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#
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-BOOTMAGIC_ENABLE ?= yes # Virtual DIP switch configuration(+1000)
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-MOUSEKEY_ENABLE ?= yes # Mouse keys(+4700)
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-EXTRAKEY_ENABLE ?= yes # Audio control and System control(+450)
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-CONSOLE_ENABLE ?= yes # Console for debug(+400)
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-COMMAND_ENABLE ?= yes # Commands for debug and configuration
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+BOOTMAGIC_ENABLE = yes # Virtual DIP switch configuration(+1000)
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+MOUSEKEY_ENABLE = yes # Mouse keys(+4700)
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+EXTRAKEY_ENABLE = yes # Audio control and System control(+450)
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+CONSOLE_ENABLE = yes # Console for debug(+400)
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+COMMAND_ENABLE = yes # Commands for debug and configuration
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#SLEEP_LED_ENABLE = yes # Breathing sleep LED during USB suspend
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-NKRO_ENABLE ?= yes # USB Nkey Rollover - not yet supported in LUFA
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-BACKLIGHT_ENABLE ?= yes
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+NKRO_ENABLE = yes # USB Nkey Rollover - not yet supported in LUFA
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+BACKLIGHT_ENABLE = yes
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# Optimize size but this may cause error "relocation truncated to fit"
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Balz Guenat