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# vim:ft=make
#
# Copyright 2020 Daniel Friesel
#
# SPDX-License-Identifier: BSD-2-Clause
SERIAL_PORT ?= ttyACM0
cpu_freq ?= 168000000
INCLUDES += -Iext/libopencm3/include
COMMON_FLAGS += --static -nostartfiles -g3 -Os -fno-common
COMMON_FLAGS += -ffunction-sections -fdata-sections
COMMON_FLAGS += -mcpu=cortex-m4 -mthumb -mfloat-abi=hard -mfpu=fpv4-sp-d16 -DSTM32F4
CC = arm-none-eabi-gcc
CXX = arm-none-eabi-g++
OBJCOPY = arm-none-eabi-objcopy
OBJDUMP = arm-none-eabi-objdump
SIZE = arm-none-eabi-size
ARCH_SHORTNAME = stm32f4
CXX_TARGETS += src/arch/stm32f446re-nucleo/arch.cc
ifdef CONFIG_aspectc
CXX = ag++ -r build/repo.acp -v 0 --c_compiler arm-none-eabi-g++ -p . --Xcompiler
endif
ifneq ($(findstring adc,${arch_drivers}), )
CXX_TARGETS += src/arch/stm32f446re-nucleo/driver/adc.cc
endif
CXX_TARGETS += src/arch/stm32f446re-nucleo/driver/gpio.cc
CXX_TARGETS += src/arch/stm32f446re-nucleo/driver/stdout.cc
# Commandline
ifneq ($(findstring counter,${arch_drivers}), )
CONFIG_arch_stm32f446re_nucleo_driver_counter = y
endif
#ifneq ($(findstring timer,${arch_drivers}), )
# CONFIG_arch_stm32f446re_nucleo_driver_timer = y
#endif
ifeq (${timer_s}, 1)
CONFIG_arch_stm32f446re_nucleo_driver_uptime = y
endif
# Kconfig
ifdef CONFIG_arch_stm32f446re_nucleo_driver_counter
CXX_TARGETS += src/arch/stm32f446re-nucleo/driver/counter.cc
endif
#ifdef CONFIG_arch_stm32f446re_nucleo_driver_timer
# CXX_TARGETS += src/arch/stm32f446re-nucleo/driver/timer.cc
#endif
ifdef CONFIG_arch_stm32f446re_nucleo_driver_uptime
COMMON_FLAGS += -DTIMER_S
CXX_TARGETS += src/arch/stm32f446re-nucleo/driver/uptime.cc
endif
ifneq (${cpu_freq}, )
COMMON_FLAGS += -DF_CPU=${cpu_freq}UL
else
COMMON_FLAGS += -DF_CPU=168000000UL
endif
OBJECTS = ${CXX_TARGETS:.cc=.o} ${C_TARGETS:.c=.o} ${ASM_TARGETS:.S=.o}
%.o : %.cc | include/config.h
${QUIET}${CXX} ${INCLUDES} ${COMMON_FLAGS} ${CXXFLAGS} -c -o $@ ${@:.o=.cc}
%.o : %.c | include/config.h
${QUIET}${CC} ${INCLUDES} ${COMMON_FLAGS} ${CFLAGS} -c -o $@ ${@:.o=.c}
%.o : %.S | include/config.h
${QUIET}${CC} ${INCLUDES} ${COMMON_FLAGS} -c -o $@ ${@:.o=.S}
%.o : %.s | include/config.h
${QUIET}${CC} ${INCLUDES} ${COMMON_FLAGS} -c -o $@ ${@:.o=.S}
build/system.elf: ${OBJECTS} ext/libopencm3/lib/libopencm3_stm32f4.a
${QUIET}mkdir -p build
${QUIET}${CXX} ${INCLUDES} ${COMMON_FLAGS} ${CXXFLAGS} \
-Lext/libopencm3/lib -Wl,--gc-sections \
-Wl,--start-group -lc -lgcc -lnosys -Wl,--end-group \
-T src/arch/stm32f446re-nucleo/stm32f446.ld \
${OBJECTS} -lopencm3_stm32f4 \
-o $@
${QUIET}${SIZE} build/system.elf | tail -n1 | awk '{ print " ROM: " ($$1+$$2) " (" int(($$1+$$2)*100/524288) "%) RAM: " ($$2 + $$3) " (" int(($$2+$$3)*100/131072) "%)" }'
ext/libopencm3/Makefile:
git submodule update --init
ext/libopencm3/lib/libopencm3_stm32f4.a: ext/libopencm3/Makefile
${MAKE} -C ext/libopencm3
program: build/system.elf
openocd -c 'source [find interface/stlink-v2-1.cfg]' \
-c 'transport select hla_swd' -c 'source [find target/stm32f4x.cfg]' \
-c 'reset_config srst_only' -c '$$_TARGETNAME configure -rtos auto' \
-c 'reset_config connect_assert_srst' -c init -c targets \
-c 'reset halt' -c 'flash write_image erase "build/system.elf" 0' \
-c 'verify_image "build/system.elf" 0' -c 'reset run' -c 'shutdown'
arch_clean:
${QUIET}rm -f ${OBJECTS}
cat:
${QUIET}script/cat.py /dev/${SERIAL_PORT} 115200 ${cpu_freq} 65536
monitor:
${QUIET}screen /dev/${SERIAL_PORT} 115200
arch_help:
@echo "stm32f446re-nucleo specific flags:"
@echo " cpu_freq = ${cpu_freq} (desired CPU frequency in Hz)"
@echo " supported frequencies: 84 / 168 / 180 MHz"
arch_info:
@echo "CPU Freq: ${cpu_freq} Hz"
@echo "Timer Freq: ${timer_freq} Hz -> $(shell src/arch/stm32f446re-nucleo/model.py f_timer "${cpu_freq}" "${timer_freq}")"
@echo "I2C Freq: ${i2c_freq} Hz"
@echo "Counter Overflow: 4294967296/255"
@echo "Monitor: /dev/${SERIAL_PORT} 115200"
attributes: build/system.elf
${QUIET}script/size.py ${SIZE} text,data data,bss
nfpvalues: build/system.elf
${QUIET}script/nfpvalues.py ${SIZE} text,data data,bss
.PHONY: arch_clean arch_help arch_info attributes cat monitor program
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