makefile

GCC source code for do it yoursel a avr programer and jtagice debuger.

###############################################################################
# Makefile for the project IsoJtagISP
###############################################################################

## Change MCU here to atmega16 or atmega32 
MCU = atmega16

## General Flags
PROJECT = IsoJtagISP
TARGET = IsoJtagISP.elf
CC = avr-gcc.exe

## Options common to compile, link and assembly rules
COMMON = -mmcu=$(MCU)

## Compile options common for all C compilation units.
CFLAGS = $(COMMON)
CFLAGS += -Wall -gdwarf-2  -O0 -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums
CFLAGS += -MD -MP -MT $(*F).o -MF dep/$(@F).d 
CFLAGS += -A cpu=$(MCU) -D MCU=$(MCU)

## Assembly specific flags
ASMFLAGS = $(COMMON)
ASMFLAGS += -x assembler-with-cpp -Wa,-gdwarf2

## Linker flags
LDFLAGS = $(COMMON)
LDFLAGS +=  -Wl,-Map=IsoJtagISP.map

ifeq ($(MCU),atmega16)
LDFLAGS += -Wl,-section-start=.bload_start=0x3800
LDFLAGS += -Wl,-section-start=.bloader=0x3804
LDFLAGS += -Wl,-section-start=.ubrr=0x37a0
LDFLAGS += -Wl,-section-start=.text=0x2f00
endif

ifeq ($(MCU),atmega32)
LDFLAGS += -Wl,-section-start=.bload_start=0x7000
LDFLAGS += -Wl,-section-start=.bloader=0x7004
LDFLAGS += -Wl,-section-start=.ubrr=0x6fa0
LDFLAGS += -Wl,-section-start=.text=0x6700
endif

## Intel Hex file production flags
HEX_FLASH_FLAGS = -R .eeprom

HEX_EEPROM_FLAGS = -j .eeprom
HEX_EEPROM_FLAGS += --set-section-flags=.eeprom="alloc,load"
HEX_EEPROM_FLAGS += --change-section-lma .eeprom=0


## Objects that must be built in order to link
OBJECTS = bootloader.o set_UBRR.o isojtag_avr910_3.8.o 

## Objects explicitly added by the user
LINKONLYOBJECTS = 

## Build
all: $(TARGET) IsoJtagISP.hex IsoJtagISP.eep IsoJtagISP.lss size

## Compile
set_UBRR.o: ../set_UBRR.S
	$(CC) $(INCLUDES) $(ASMFLAGS) -c  $<

isojtag_avr910_3.8.o: ../isojtag_avr910_3.8.S
	$(CC) $(INCLUDES) $(ASMFLAGS) -c  $<

bootloader.o: ../bootloader.c
	$(CC) $(INCLUDES) $(CFLAGS) -c  $<

##Link
$(TARGET): $(OBJECTS)
	 $(CC) $(LDFLAGS) $(OBJECTS) $(LINKONLYOBJECTS) $(LIBDIRS) $(LIBS) -o $(TARGET)

%.hex: $(TARGET)
	avr-objcopy -O ihex $(HEX_FLASH_FLAGS)  $< $@

%.eep: $(TARGET)
	avr-objcopy $(HEX_EEPROM_FLAGS) -O ihex $< $@

%.lss: $(TARGET)
	avr-objdump -h -S $< > $@

size: ${TARGET}
	@echo
	@avr-size -C --mcu=${MCU} ${TARGET}

## Clean target
.PHONY: clean
clean:
	-rm -rf $(OBJECTS) IsoJtagISP.elf dep/* IsoJtagISP.hex IsoJtagISP.eep IsoJtagISP.lss IsoJtagISP.map


## Other dependencies
-include $(shell mkdir dep 2>/dev/null) $(wildcard dep/*)