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MAKEFLAGS += --no-builtin-rules
PROJNAME = blink
SRC = blink.c
OBJ = $(patsubst %.c,%.o,$(SRC)) # This creates list of *.o files from *.c
Q ?= @ # This can be overwritten to show commands
.PHONY: all
ifneq ("$(wildcard .config)","") # Checking if configuration exists
all: $(PROJNAME).hex
@echo Now you can flash $< to your chip.
else
all: .config
endif
# Edit here help like you ever want
.PHONY: help
help:
@echo "AVR-IOE blink example"
@echo " all - Build example"
@echo " config - Start configuration program"
@echo " menuconfig - NCurses based configuration program"
@echo " help - Prints this text"
@echo " clean - Removing all object files generated from source files"
.PHONY: clean
clean:
@echo " CLEAN OBJ"
$(Q)$(RM) $(OBJ)
@echo " CLEAN $(PROJNAME).elf $(PROJNAME).hex"
$(Q)$(RM) $(PROJNAME).elf $(PROJNAME).hex
$(Q)$(MAKE) -C ../.. clean O=examples/$(PROJNAME)
# Building targets are available only if configuration is generated
ifneq ("$(wildcard .config)","")
-include .config
# If you want change some standard CFLAGS, change them in configuration not here.
# Add here only options that should not be applied to avr-ioe also.
CFLAGS = -I../../include -mmcu=$(MMCU) -imacros build/config.h \
$(shell echo $(CONFCFLAGS)) $(shell echo -DF_CPU=$(F_CPU)000L)
$(PROJNAME).elf: libioe.a
$(PROJNAME).elf: $(OBJ)
@echo " LD $@"
$(Q)avr-gcc -Os -mmcu=$(MMCU) $(filter %.o,$^) -o $@ -L. -lioe
$(PROJNAME).hex: $(PROJNAME).elf
@echo " OBJCOPY $@"
$(Q)avr-objcopy -O ihex -R .eeprom $< $@
$(OBJ): %.o: %.c libioe.a
@echo " CC $@"
$(Q)avr-gcc $(CFLAGS) -c -o $@ $<
libioe.a: .config
$(Q)$(MAKE) -C ../.. examples/$(PROJNAME)/libioe.a O=examples/$(PROJNAME)
endif
.config:
@echo Configuration for this example is missing. Probably deleted...
@exit 1
config:
$(Q)$(MAKE) -C ../.. config O=examples/$(PROJNAME)
.PHONY: menuconfig
menuconfig:
$(Q)$(MAKE) -C ../.. menuconfig O=examples/$(PROJNAME)
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