qmk-firmware/quantum/mcu_selection.mk

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ifneq ($(findstring STM32F303, $(MCU)),)
## chip/board settings
# - the next two should match the directories in
# <chibios>/os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES)
MCU_FAMILY ?= STM32
MCU_SERIES ?= STM32F3xx
# Linker script to use
# - it should exist either in <chibios>/os/common/ports/ARMCMx/compilers/GCC/ld/
# or <this_dir>/ld/
MCU_LDSCRIPT ?= STM32F303xC
# Startup code to use
# - it should exist in <chibios>/os/common/startup/ARMCMx/compilers/GCC/mk/
MCU_STARTUP ?= stm32f3xx
# Board: it should exist either in <chibios>/os/hal/boards/
# or <this_dir>/boards
BOARD ?= GENERIC_STM32_F303XC
# Cortex version
MCU = cortex-m4
# ARM version, CORTEX-M0/M1 are 6, CORTEX-M3/M4/M7 are 7
ARMV ?= 7
USE_FPU = yes
# Vector table for application
# 0x00000000-0x00001000 area is occupied by bootlaoder.*/
# The CORTEX_VTOR... is needed only for MCHCK/Infinity KB
# OPT_DEFS = -DCORTEX_VTOR_INIT=0x08005000
# Options to pass to dfu-util when flashing
DFU_ARGS ?= -d 0483:df11 -a 0 -s 0x08000000:leave
DFU_SUFFIX_ARGS = -p DF11 -v 0483
endif
ifneq (,$(filter $(MCU),atmega16u2 atmega32u2 atmega16u4 atmega32u4 at90usb646 at90usb1286))
# 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 ?= $(F_CPU)
# Interrupt driven control endpoint task
ifeq (,$(filter $(NO_INTERRUPT_CONTROL_ENDPOINT),yes))
OPT_DEFS += -DINTERRUPT_CONTROL_ENDPOINT
endif
endif
ifneq (,$(filter $(MCU),atmega32a))
PROTOCOL = VUSB
# 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.
F_CPU ?= 12000000
# unsupported features for now
NO_UART ?= yes
NO_SUSPEND_POWER_DOWN ?= yes
# Programming options
PROGRAM_CMD ?= ./util/atmega32a_program.py $(TARGET).hex
endif