add bootloader

avr/bootloader/avr.mk

@@ -0,0 +1,104 @@
+# Programmer used for In System Programming
+ISP_PROG = usbap
+# device the ISP programmer is connected to
+ISP_DEV = /dev/tty.PL2303-00002126
+# Programmer used for serial programming (using the bootloader)
+SERIAL_PROG = avr109
+# device the serial programmer is connected to
+SERIAL_DEV = /dev/ttyS0
+
+# programs
+CC = avr-gcc
+OBJCOPY = avr-objcopy
+OBJDUMP = avr-objdump
+AS = avr-as
+CP = cp
+RM = rm -f
+AVRDUDE = avrdude
+AVRDUDE_BAUDRATE = 19200
+SIZE = avr-size
+
+-include $(CURDIR)/config.mk
+
+# flags for avrdude
+ifeq ($(MCU),atmega8)
+	AVRDUDE_MCU=m8
+endif
+ifeq ($(MCU),atmega48)
+	AVRDUDE_MCU=m48
+endif
+ifeq ($(MCU),atmega88)
+	AVRDUDE_MCU=m88
+endif
+ifeq ($(MCU),atmega168)
+	AVRDUDE_MCU=m168
+endif
+ifeq ($(MCU),atmega644)
+	AVRDUDE_MCU=m644
+endif
+
+
+
+AVRDUDE_FLAGS += -p $(AVRDUDE_MCU) -b $(AVRDUDE_BAUDRATE)
+
+# flags for the compiler
+CFLAGS += -g -Os -finline-limit=800 -mmcu=$(MCU) -DF_CPU=$(F_CPU) -std=gnu99
+ASFLAGS += -g -mmcu=$(MCU) -DF_CPU=$(F_CPU)
+
+# flags for the linker
+LDFLAGS += -mmcu=$(MCU)
+
+ifneq ($(DEBUG),)
+	CFLAGS += -Wall -W -Wchar-subscripts -Wmissing-prototypes
+	CFLAGS += -Wmissing-declarations -Wredundant-decls
+	CFLAGS += -Wstrict-prototypes -Wshadow -Wbad-function-cast
+	CFLAGS += -Winline -Wpointer-arith -Wsign-compare
+	#CFLAGS += -Wunreachable-code -Wdisabled-optimization -Werror
+	CFLAGS += -Wunreachable-code -Wdisabled-optimization
+	CFLAGS += -Wcast-align -Wwrite-strings -Wnested-externs -Wundef
+	CFLAGS += -Wa,-adhlns=$(basename $@).lst
+	CFLAGS += -DDEBUG
+endif
+
+all:
+
+$(OBJECTS):
+
+clean:
+	$(RM) *.hex *.eep.hex *.o *.lst *.lss
+
+interactive-isp:
+	$(AVRDUDE) $(AVRDUDE_FLAGS) -c $(ISP_PROG) -P $(ISP_DEV) -t
+
+interactive-serial:
+	$(AVRDUDE) $(AVRDUDE_FLAGS) -c $(SERIAL_PROG) -P $(SERIAL_DEV) -t
+
+
+.PHONY: all clean interactive-isp interactive-serial launch-bootloader
+
+program-isp-%: %.hex
+	$(AVRDUDE) $(AVRDUDE_FLAGS) -c $(ISP_PROG) -P $(ISP_DEV) -U flash:w:$<
+
+program-isp-eeprom-%: %.eep.hex
+	$(AVRDUDE) $(AVRDUDE_FLAGS) -c $(ISP_PROG) -P $(ISP_DEV) -U eeprom:w:$<
+
+program-serial-%: %.hex
+	$(AVRDUDE) $(AVRDUDE_FLAGS) -c $(SERIAL_PROG) -P $(SERIAL_DEV) -U flash:w:$<
+
+program-serial-eeprom-%: %.eep.hex launch-bootloader
+	$(AVRDUDE) $(AVRDUDE_FLAGS) -c $(SERIAL_PROG) -P $(SERIAL_DEV) -U eeprom:w:$<
+
+%.hex: %
+	$(OBJCOPY) -O ihex -R .eeprom $< $@
+
+%.eep.hex: %
+	$(OBJCOPY) --set-section-flags=.eeprom="alloc,load" --change-section-lma .eeprom=0 -O ihex -j .eeprom $< $@
+
+%.lss: %
+	$(OBJDUMP) -h -S $< > $@
+
+%-size: %.hex
+	$(SIZE) $<
+
+launch-bootloader:
+	launch-bootloader $(SERIAL_DEV) $(AVRDUDE_BAUDRATE)