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https://github.com/qmk/qmk_firmware.git
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08cd996839
This code is timing sensitive and seems to break with LTO enabled (at least on avr-gcc 8.3.0... it worked on older gcc versions). This is the same workaround as #7558 applied for the Helix.
48 lines
1.7 KiB
Makefile
48 lines
1.7 KiB
Makefile
# MCU name
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MCU = atmega32u4
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# Bootloader selection
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# Teensy halfkay
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# Pro Micro caterina
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# Atmel DFU atmel-dfu
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# LUFA DFU lufa-dfu
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# QMK DFU qmk-dfu
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# ATmega32A bootloadHID
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# ATmega328P USBasp
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BOOTLOADER = caterina
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# Build Options
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# change to "no" to disable the options, or define them in the Makefile in
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# the appropriate keymap folder that will get included automatically
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#
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BOOTMAGIC_ENABLE = no # Virtual DIP switch configuration(+1000)
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MOUSEKEY_ENABLE = no # Mouse keys(+4700)
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EXTRAKEY_ENABLE = no # Audio control and System control(+450)
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CONSOLE_ENABLE = no # Console for debug(+400)
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COMMAND_ENABLE = no # Commands for debug and configuration
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NKRO_ENABLE = no # Nkey Rollover - if this doesn't work, see here: https://github.com/tmk/tmk_keyboard/wiki/FAQ#nkro-doesnt-work
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BACKLIGHT_ENABLE = no # Enable keyboard backlight functionality
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MIDI_ENABLE = no # MIDI controls
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AUDIO_ENABLE = no # Audio output on port C6
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UNICODE_ENABLE = no # Unicode
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BLUETOOTH_ENABLE = no # Enable Bluetooth with the Adafruit EZ-Key HID
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RGBLIGHT_ENABLE = no # Enable WS2812 RGB underlight.
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# Do not enable SLEEP_LED_ENABLE. it uses the same timer as BACKLIGHT_ENABLE
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SLEEP_LED_ENABLE = no # Breathing sleep LED during USB suspend
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CUSTOM_MATRIX = yes
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SRC += i2c.c
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SRC += serial.c
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SRC += ssd1306.c
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# A workaround until #7089 is merged.
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# serial.c must not be compiled with the -lto option.
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# The current LIB_SRC has a side effect with the -fno-lto option, so use it.
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LIB_SRC += serial.c
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# if firmware size over limit, try this option
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# CFLAGS += -flto
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DEFAULT_FOLDER = lily58/rev1
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