keychron_qmk_firmware/converter/ps2_usb/Makefile.tmk_rev2

# 
# Makefile for TMK keyboard converter rev2
#     https://github.com/tmk/keyboard_converter#pcb-rev2
#
# Target file name (without extension).
TARGET = ps2_usb_tmk_rev2

# Directory common source filess exist
TMK_DIR = ../../tmk_core

# Directory keyboard dependent files exist
TARGET_DIR = .

# project specific files
SRC =	keymap_common.c \
	matrix.c \
	led.c

ifdef KEYMAP
    SRC := keymap_$(KEYMAP).c $(SRC)
else
    SRC := keymap_plain.c $(SRC)
endif

CONFIG_H = config_tmk_rev2.h


# MCU name
MCU = atmega32u2

# Processor frequency.
#     This will define a symbol, F_CPU, in all source code files equal to the
#     processor frequency in Hz. You can then use this symbol in your source code to
#     calculate timings. Do NOT tack on a 'UL' at the end, this will be done
#     automatically to create a 32-bit value in your source code.
#
#     This will be an integer division of F_USB below, as it is sourced by
#     F_USB after it has run through any CPU prescalers. Note that this value
#     does not *change* the processor frequency - it should merely be updated to
#     reflect the processor speed set externally so that the code can use accurate
#     software delays.
F_CPU = 16000000


#
# LUFA specific
#
# Target architecture (see library "Board Types" documentation).
ARCH = AVR8

# Input clock frequency.
#     This will define a symbol, F_USB, in all source code files equal to the
#     input clock frequency (before any prescaling is performed) in Hz. This value may
#     differ from F_CPU if prescaling is used on the latter, and is required as the
#     raw input clock is fed directly to the PLL sections of the AVR for high speed
#     clock generation for the USB and other AVR subsections. Do NOT tack on a 'UL'
#     at the end, this will be done automatically to create a 32-bit value in your
#     source code.
#
#     If no clock division is performed on the input clock inside the AVR (via the
#     CPU clock adjust registers or the clock division fuses), this will be equal to F_CPU.
F_USB = $(F_CPU)


# Boot Section Size in *bytes*
#   Teensy halfKay   512
#   Teensy++ halfKay 1024
#   Atmel DFU loader 4096
#   LUFA bootloader  4096
#   USBaspLoader     2048
OPT_DEFS += -DBOOTLOADER_SIZE=4096


# Build Options
#   comment out to disable the options.
#
#BOOTMAGIC_ENABLE = yes	# Virtual DIP switch configuration(+1000)
MOUSEKEY_ENABLE = yes	# Mouse keys(+4700)
EXTRAKEY_ENABLE = yes	# Audio control and System control(+450)
CONSOLE_ENABLE = yes	# Console for debug(+400)
COMMAND_ENABLE = yes    # Commands for debug and configuration
#NKRO_ENABLE = yes	# USB Nkey Rollover - not yet supported in LUFA


# PS/2 Options
#
PS2_USE_INT = yes	# uses external interrupt for falling edge of PS/2 clock pin
#PS2_USE_BUSYWAIT = yes	# uses primitive reference code


# Search Path
VPATH += $(TARGET_DIR)
VPATH += $(TMK_DIR)

include $(TMK_DIR)/protocol.mk
include $(TMK_DIR)/protocol/lufa.mk
include $(TMK_DIR)/common.mk
include $(TMK_DIR)/rules.mk