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# Additional sam4e8e build rules
# Setup the toolchain
CROSS_PREFIX=arm-none-eabi-
dirs-y += src/sam4e8e src/generic
CFLAGS += -mthumb -mcpu=cortex-m4 -mfpu=fpv4-sp-d16 -mfloat-abi=hard
CFLAGS += -D__SAM4E8E__
CFLAGS_klipper.elf += -L lib/cmsis-sam4e/gcc/gcc
CFLAGS_klipper.elf += -T lib/cmsis-sam4e/gcc/gcc/sam4e8e_flash.ld
CFLAGS_klipper.elf += --specs=nano.specs --specs=nosys.specs
dirs-y += lib/cmsis-sam4e/gcc \
lib/cmsis-sam4e/gcc/gcc
CFLAGS += -Ilib/cmsis-sam4e/include \
-Ilib/cmsis-core
src-y += ../lib/cmsis-sam4e/gcc/system_sam4e.c \
../lib/cmsis-sam4e/gcc/gcc/startup_sam4e.c
src-$(CONFIG_HAVE_GPIO_SPI) += sam4e8e/spi.c
src-$(CONFIG_HAVE_GPIO_I2C) += sam4e8e/i2c.c
src-$(CONFIG_SERIAL) += sam4e8e/serial.c generic/serial_irq.c
src-$(CONFIG_HAVE_GPIO) += sam4e8e/gpio.c
src-y += generic/crc16_ccitt.c generic/alloc.c
src-y += generic/armcm_irq.c generic/timer_irq.c
src-y += sam4e8e/main.c sam4e8e/timer.c
# Build the additional hex output file
target-y += $(OUT)klipper.bin
$(OUT)klipper.bin: $(OUT)klipper.elf
@echo " Creating bin file $@"
$(Q)$(OBJCOPY) -O binary $< $@
# Flash rules
lib/bossac/bin/bossac:
@echo " Building bossac"
$(Q)make -C lib/bossac bin/bossac
flash: $(OUT)klipper.bin lib/bossac/bin/bossac
@echo " Flashing $^ to $(FLASH_DEVICE) via bossac"
$(Q)if [ -z $(FLASH_DEVICE) ]; then echo "Please specify FLASH_DEVICE"; exit 1; fi
$(Q)lib/bossac/bin/bossac -U -p "$(FLASH_DEVICE)" -e -w $(OUT)klipper.bin -v -b -R
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