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# vim:ft=make
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
CXX_TARGETS += src/arch/stm32f446re-nucleo/arch.cc
ifeq (${aspectc}, 1)
CXX = ag++ -r build/repo.acp -v 0 --c_compiler arm-none-eabi-g++ -p . --Xcompiler
endif
ifneq ($(findstring adc,${arch_drivers}), )
CXX_TARGETS += src/arch/stm32f446re-nucleo/driver/adc.cc
endif
CXX_TARGETS += src/arch/stm32f446re-nucleo/driver/gpio.cc
CXX_TARGETS += src/arch/stm32f446re-nucleo/driver/stdout.cc
CXX_TARGETS += src/arch/stm32f446re-nucleo/driver/uptime.cc
ifneq ($(findstring stdin,${arch_drivers}), )
CXX_TARGETS += src/arch/stm32f446re-nucleo/driver/stdin.cc
endif
ifneq ($(findstring softi2c,${drivers}), )
else ifneq ($(findstring i2c,${arch_drivers}), )
CXX_TARGETS += src/arch/stm32f446re-nucleo/driver/i2c.cc
COMMON_FLAGS += -DDRIVER_I2C
endif
ifneq ($(findstring spi_a1,${arch_drivers}), )
CXX_TARGETS += src/arch/stm32f446re-nucleo/driver/spi_a1.cc
endif
ifneq ($(findstring spi_b,${arch_drivers}), )
CXX_TARGETS += src/arch/stm32f446re-nucleo/driver/spi_b.cc
endif
ifneq ($(findstring timer,${arch_drivers}), )
CXX_TARGETS += src/arch/stm32f446re-nucleo/driver/timer.cc
endif
ifneq ($(findstring counter,${arch_drivers}), )
CXX_TARGETS += src/arch/stm32f446re-nucleo/driver/counter.cc
endif
ifneq (${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}
.cc.o:
${QUIET}${CXX} ${INCLUDES} ${COMMON_FLAGS} ${CXXFLAGS} -c -o $@ ${@:.o=.cc}
.c.o:
${QUIET}${CC} ${INCLUDES} ${COMMON_FLAGS} ${CFLAGS} -c -o $@ ${@:.o=.c}
.S.o:
${QUIET}${CC} ${INCLUDES} ${COMMON_FLAGS} -c -o $@ ${@:.o=.S}
.s.o:
${QUIET}${CC} ${INCLUDES} ${COMMON_FLAGS} -c -o $@ ${@:.o=.S}
# deliberately no ${MAKE} here -- multipass relies on make -B, but we don't
# want to re-make libopencm3 all the time
ext/libopencm3/lib/libopencm3_stm32f4.a: ext/libopencm3/Makefile
git submodule update --init
${MAKE} -C ext/libopencm3
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 $@
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' \
'verify_image "build/system.elf" 0' -c 'reset run' -c 'shutdown'
arch_clean:
${QUIET}rm -f ${OBJECTS}
monitor:
${QUIET}screen /dev/${SERIAL_PORT} 115200
arch_help:
@echo "stm32f446re-nucleo specific flags:"
@echo " DEBUG_PORT = ${DEBUG_PORT}"
@echo " SERIAL_PORT = ${SERIAL_PORT}"
@echo " cpu_freq = ${cpu_freq} (desired CPU frequency in Hz)"
@echo " supported frequencies: 1 / 4 / 8 / 16 MHz"
@echo " MSP430_FLASHER_DIR = /home/derf/var/projects/msp430/MSP430Flasher_1.3.7"
@echo " (required for flashing, must contain libmsp430.so and MSP430Flasher)"
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: ${i2c_freq} Hz"
@echo "Counter Overflow: 65536/255"
@echo "Monitor: /dev/${SERIAL_PORT} 115200"
.PHONY: arch_clean arch_help arch_info monitor program
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