qmk_firmware/keyboards/wolfmarkclub/wm1/rules.mk

# MCU name
MCU = STM32F103

# GENERIC STM32F103C8T6 board - mass storage bootloader
MCU_LDSCRIPT = wm1_f103
BOARD = STM32_F103_STM32DUINO

PROGRAM_CMD = echo 'CLI flashing not supported' >&2

# Build Options
#   change yes to no to disable
#
BOOTMAGIC_ENABLE = no       # Virtual DIP switch configuration
MOUSEKEY_ENABLE = yes       # Mouse keys
EXTRAKEY_ENABLE = yes       # Audio control and System control
CONSOLE_ENABLE = yes        # Console for debug
COMMAND_ENABLE = yes        # Commands for debug and configuration
# Do not enable SLEEP_LED_ENABLE. it uses the same timer as BACKLIGHT_ENABLE
SLEEP_LED_ENABLE = yes      # Breathing sleep LED during USB suspend
# if this doesn't work, see here: https://github.com/tmk/tmk_keyboard/wiki/FAQ#nkro-doesnt-work
NKRO_ENABLE = yes           # USB Nkey Rollover
BACKLIGHT_ENABLE = no       # Enable keyboard backlight functionality
RGBLIGHT_ENABLE = yes       # Enable keyboard RGB underglow
MIDI_ENABLE = no            # MIDI support
UNICODE_ENABLE = no         # Unicode
BLUETOOTH_ENABLE = no       # Enable Bluetooth with the Adafruit EZ-Key HID
AUDIO_ENABLE = no           # Audio output on port C6
LTO_ENABLE = yes

# Enter lower-power sleep mode when on the ChibiOS idle thread
OPT_DEFS += -DCORTEX_ENABLE_WFI_IDLE=TRUE