MCU = atmega1284p TARGET = images/OpenModem # Optimization level, can be [0, 1, 2, 3, s]. 0 turns off optimization. # (Note: 3 is not always the best optimization level. See avr-libc FAQ.) OPT = s FORMAT = ihex SRC = main.c hardware/Serial.c hardware/AFSK.c hardware/VREF.c hardware/LED.c hardware/UserIO.c hardware/SD.c hardware/sdcard/diskio.c hardware/sdcard/ff.c hardware/sdcard/ffsystem.c hardware/sdcard/ffunicode.c hardware/Bluetooth.c hardware/GPS.c util/CRC-CCIT.c protocol/AX25.c protocol/KISS.c # List Assembler source files here. ASRC = # List any extra directories to look for include files here. EXTRAINCDIRS = # Optional compiler flags. # -g: generate debugging information (for GDB, or for COFF conversion) # -O*: optimization level # -f...: tuning, see gcc manual and avr-libc documentation # -Wall...: warning level # -Wa,...: tell GCC to pass this to the assembler. # -ahlms: create assembler listing CFLAGS = -O$(OPT) \ -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums \ -Wall -Wstrict-prototypes -fno-strict-aliasing \ -Wa,-adhlns=$(<:.c=.lst) \ $(patsubst %,-I%,$(EXTRAINCDIRS)) CFLAGS += -std=gnu99 # Optional assembler flags. ASFLAGS = -Wa,-adhlns=$(<:.S=.lst),-gstabs # Optional linker flags. # Previous: LDFLAGS = -Wl,-Map=$(TARGET).map,--cref # -Wl,...: tell GCC to pass this to linker. # -Map: create map file # --cref: add cross reference to map file LDFLAGS = -Wl,-u,vfprintf,-lprintf_flt,-Map=$(TARGET).map,--cref # Additional libraries LDFLAGS += -lm # Define programs and commands. SHELL = sh CC = avr-gcc OBJCOPY = avr-objcopy OBJDUMP = avr-objdump SIZE = avr-size REMOVE = rm -f COPY = cp HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex ELFSIZE = $(SIZE) --mcu=$(MCU) -C $(TARGET).elf # Define Messages # English MSG_ERRORS_NONE = Firmware compiled successfully! MSG_BEGIN = Starting build... MSG_END = -------- Done -------- MSG_SIZE_BEFORE = Size before: MSG_SIZE_AFTER = Size after: MSG_COFF = Converting to AVR COFF: MSG_EXTENDED_COFF = Converting to AVR Extended COFF: MSG_FLASH = Creating load file for Flash: MSG_EEPROM = Creating load file for EEPROM: MSG_EXTENDED_LISTING = Creating Extended Listing: MSG_SYMBOL_TABLE = Creating Symbol Table: MSG_LINKING = Linking: MSG_COMPILING = Compiling: MSG_ASSEMBLING = Assembling: MSG_CLEANING = Cleaning project: # Define all object files. OBJ = $(SRC:.c=.o) $(ASRC:.S=.o) # Define all listing files. LST = $(ASRC:.S=.lst) $(SRC:.c=.lst) # Combine all necessary flags and optional flags. # Add target processor to flags. ALL_CFLAGS = -mmcu=$(MCU) -I. $(CFLAGS) ALL_ASFLAGS = -mmcu=$(MCU) -I. -x assembler-with-cpp $(ASFLAGS) # Default target: make program! #all: begin gccversion sizebefore $(TARGET).elf $(TARGET).hex $(TARGET).eep \ # $(TARGET).lss $(TARGET).sym sizeafter finished end all: begin $(TARGET).elf $(TARGET).hex $(TARGET).eep \ $(TARGET).lss $(TARGET).sym cleanup sizeafter finished # $(AVRDUDE) $(AVRDUDE_FLAGS) $(AVRDUDE_WRITE_FLASH) $(AVRDUDE_WRITE_EEPROM) # Eye candy. # AVR Studio 3.x does not check make's exit code but relies on # the following magic strings to be generated by the compile job. begin: @echo @echo $(MSG_BEGIN) finished: @echo $(MSG_ERRORS_NONE) end: @echo $(MSG_END) @echo # Display size of file. sizebefore: @if [ -f $(TARGET).elf ]; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); echo; fi sizeafter: @if [ -f $(TARGET).elf ]; then echo; $(ELFSIZE); echo; fi # Display compiler version information. gccversion : @$(CC) --version # Convert ELF to COFF for use in debugging / simulating in # AVR Studio or VMLAB. COFFCONVERT=$(OBJCOPY) --debugging \ --change-section-address .data-0x800000 \ --change-section-address .bss-0x800000 \ --change-section-address .noinit-0x800000 \ --change-section-address .eeprom-0x810000 coff: $(TARGET).elf # @echo # @echo $(MSG_COFF) $(TARGET).cof @$(COFFCONVERT) -O coff-avr $< $(TARGET).cof extcoff: $(TARGET).elf # @echo # @echo $(MSG_EXTENDED_COFF) $(TARGET).cof @$(COFFCONVERT) -O coff-ext-avr $< $(TARGET).cof # Create final output files (.hex, .eep) from ELF output file. %.hex: %.elf # @echo # @echo $(MSG_FLASH) $@ @$(OBJCOPY) -O $(FORMAT) -R .eeprom $< $@ %.eep: %.elf @echo # @echo $(MSG_EEPROM) $@ # @echo Not generating any EEPROM images # @-$(OBJCOPY) -j .eeprom --set-section-flags=.eeprom="alloc,load" --change-section-lma .eeprom=0 -O $(FORMAT) $< $@ # Create extended listing file from ELF output file. %.lss: %.elf # @echo # @echo $(MSG_EXTENDED_LISTING) $@ @$(OBJDUMP) -h -S $< > $@ # Create a symbol table from ELF output file. %.sym: %.elf # @echo # @echo $(MSG_SYMBOL_TABLE) $@ @avr-nm -n $< > $@ # Link: create ELF output file from object files. .SECONDARY : $(TARGET).elf .PRECIOUS : $(OBJ) %.elf: $(OBJ) @echo $(MSG_LINKING) $@ @$(CC) $(ALL_CFLAGS) $(OBJ) --output $@ $(LDFLAGS) # Compile: create object files from C source files. %.o : %.c @echo $(MSG_COMPILING) $< @$(CC) -c $(ALL_CFLAGS) $< -o $@ # Compile: create assembler files from C source files. %.s : %.c @$(CC) -S $(ALL_CFLAGS) $< -o $@ # Assemble: create object files from assembler source files. %.o : %.S @echo @echo $(MSG_ASSEMBLING) $< @$(CC) -c $(ALL_ASFLAGS) $< -o $@ # Target: clean project. clean: clean_list finished clean_list : @echo @echo $(MSG_CLEANING) $(REMOVE) $(TARGET).hex $(REMOVE) $(TARGET).eep $(REMOVE) $(TARGET).obj $(REMOVE) $(TARGET).cof $(REMOVE) $(TARGET).elf $(REMOVE) $(TARGET).map $(REMOVE) $(TARGET).obj $(REMOVE) $(TARGET).a90 $(REMOVE) $(TARGET).sym $(REMOVE) $(TARGET).lnk $(REMOVE) $(TARGET).lss $(REMOVE) $(OBJ) $(REMOVE) $(LST) $(REMOVE) $(SRC:.c=.s) $(REMOVE) $(SRC:.c=.d) $(REMOVE) *~ cleanup: @$(REMOVE) $(SRC:.c=.s) @$(REMOVE) $(SRC:.c=.d) @$(REMOVE) $(LST) # Automatically generate C source code dependencies. # (Code originally taken from the GNU make user manual and modified # (See README.txt Credits).) # # Note that this will work with sh (bash) and sed that is shipped with WinAVR # (see the SHELL variable defined above). # This may not work with other shells or other seds. # %.d: %.c @set -e; $(CC) -MM $(ALL_CFLAGS) $< \ | sed 's,\(.*\)\.o[ :]*,\1.o \1.d : ,g' > $@; \ [ -s $@ ] || rm -f $@ # Remove the '-' if you want to see the dependency files generated. -include $(SRC:.c=.d) # Listing of phony targets. .PHONY : all begin finish end sizebefore sizeafter gccversion coff extcoff \ clean clean_list program