85 lines
1.8 KiB
Makefile
Executable File
85 lines
1.8 KiB
Makefile
Executable File
##############################################################################
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BUILD = build
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BIN = watch
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##############################################################################
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.PHONY: all directory clean size
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CC = arm-none-eabi-gcc
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OBJCOPY = arm-none-eabi-objcopy
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SIZE = arm-none-eabi-size
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UF2 = python uf2conv.py
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ifeq ($(OS), Windows_NT)
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MKDIR = gmkdir
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else
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MKDIR = mkdir
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endif
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CFLAGS += -W -Wall --std=gnu99 -Os
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CFLAGS += -fno-diagnostics-show-caret
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CFLAGS += -fdata-sections -ffunction-sections
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CFLAGS += -funsigned-char -funsigned-bitfields
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CFLAGS += -mcpu=cortex-m0plus -mthumb
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CFLAGS += -MD -MP -MT $(BUILD)/$(*F).o -MF $(BUILD)/$(@F).d
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LDFLAGS += -mcpu=cortex-m0plus -mthumb
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LDFLAGS += -Wl,--gc-sections
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LDFLAGS += -Wl,--script=../linker/saml22j18.ld
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INCLUDES += \
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-I../include \
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-I..
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SRCS += \
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../main.c \
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../startup_saml22.c
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DEFINES += \
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-D__SAML22J18A__ \
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-DDONT_USE_CMSIS_INIT \
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-DF_CPU=16000000
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CFLAGS += $(INCLUDES) $(DEFINES)
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OBJS = $(addprefix $(BUILD)/, $(notdir %/$(subst .c,.o, $(SRCS))))
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all: directory $(BUILD)/$(BIN).elf $(BUILD)/$(BIN).hex $(BUILD)/$(BIN).bin $(BUILD)/$(BIN).uf2 size
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$(BUILD)/$(BIN).elf: $(OBJS)
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@echo LD $@
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@$(CC) $(LDFLAGS) $(OBJS) $(LIBS) -o $@
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$(BUILD)/$(BIN).hex: $(BUILD)/$(BIN).elf
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@echo OBJCOPY $@
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@$(OBJCOPY) -O ihex $^ $@
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$(BUILD)/$(BIN).bin: $(BUILD)/$(BIN).elf
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@echo OBJCOPY $@
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@$(OBJCOPY) -O binary $^ $@
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$(BUILD)/$(BIN).uf2: $(BUILD)/$(BIN).bin
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@echo UF2CONV $@
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@$(UF2) $^ -co $@
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install:
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@$(UF2) -D $(BUILD)/$(BIN).uf2
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%.o:
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@echo CC $@
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@$(CC) $(CFLAGS) $(filter %/$(subst .o,.c,$(notdir $@)), $(SRCS)) -c -o $@
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directory:
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@$(MKDIR) -p $(BUILD)
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size: $(BUILD)/$(BIN).elf
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@echo size:
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@$(SIZE) -t $^
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clean:
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@echo clean
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@-rm -rf $(BUILD)
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-include $(wildcard $(BUILD)/*.d)
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