#----------------------------------------------------------------------------------
# ARM-GCC standard Makefile
# This makefile is to be used by including it from a project-specific makefile
# which defines the source files and compiler/linker options
#
# Written by Pascal Stang
# Based on Volker Oth's AVR makefiles of jan.2000
# ---------------------------------------------------------------------------------

###### BLOCK 1) define some variables based on the AVR base path in $(AVR) #######

	CC	= avr-gcc
	AS	= avr-gcc -x assembler-with-cpp	
	RM	= rm -f
	RN	= mv
	CP	= cp
	BIN	= avr-objcopy
	SIZE	= avr-size
	INCDIR	= .
#	LIBDIR	= $(AVR)/avr/lib
#	SHELL   = $(AVR)/bin/sh.exe


###### BLOCK 2) output format can be srec, ihex (avrobj is always created) #######

	FORMAT = ihex


###### BLOCK 3) define all project specific object files ######

	SRC	+= $(addprefix $(AVRLIB)/,$(AVRLIB_SRC))
	OBJ	= $(ASRC:.s=.o) $(SRC:.c=.o) 
	CPFLAGS += -mmcu=$(MCU)
	ASFLAGS += -mmcu=$(MCU)
	LDFLAGS += -mmcu=$(MCU)
  
###### BLOCK 4) this defines the aims of the make process ######

#all:	$(TRG).obj $(TRG).elf $(TRG).hex  $(TRG).cof $(TRG).eep $(TRG).ok
all:	$(TRG).elf $(TRG).cof $(TRG).hex $(TRG).eep $(TRG).ok


###### BLOCK 5) compile: instructions to create assembler and/or object files from C source ######

%.o : %.c 
	$(CC) -c $(CPFLAGS) -I$(INCDIR) $< -o $@

%.s : %.c
	$(CC) -S $(CPFLAGS) -I$(INCDIR) $< -o $@


###### BLOCK 6) assemble: instructions to create object file from assembler files ######

%.o : %.s
	$(AS) -c $(ASFLAGS) -I$(INCDIR) $< -o $@


###### BLOCK 7)  link: instructions to create elf output file from object files ######
%.elf: $(OBJ)
	$(CC) $(OBJ) $(LIB) $(LDFLAGS) -o $@

###### BLOCK 8) create avrobj file from elf output file ######

#%.obj: %.elf
#	$(BIN) -O avrobj -R .eeprom $< $@


###### BLOCK 9) create bin (.hex and .eep) files from elf output file ######

%.hex: %.elf
	$(BIN) -O $(FORMAT) -R .eeprom $< $@

%.eep: %.elf
	$(BIN) -j .eeprom --set-section-flags=.eeprom="alloc,load" --change-section-lma .eeprom=0 -O $(FORMAT) $< $@

%.cof: %.elf
	$(BIN) --debugging -O coff-ext-avr \
		--change-section-address   .data-0x800000 \
		--change-section-address    .bss-0x800000 \
		--change-section-address .noinit-0x800000 \
		--change-section-address .eeprom-0x810000 \
		$< $@


###### BLOCK 10) If all other steps compile ok then echo "Errors: none" ######

%ok:
	$(SIZE) $(TRG).elf
	@echo "Errors: none" 


###### BLOCK 11)  make instruction to delete created files ######

clean:
	$(RM) $(OBJ)
	$(RM) $(SRC:.c=.s)
	$(RM) $(SRC:.c=.lst)
	$(RM) $(TRG).map
	$(RM) $(TRG).elf
	$(RM) $(TRG).cof
	$(RM) $(TRG).obj
	$(RM) $(TRG).a90
	$(RM) $(TRG).hex
	$(RM) $(TRG).sym
	$(RM) $(TRG).eep
	$(RM) $(TRG).hex
	$(RM) *.bak
	$(RM) *.log
	@echo "Errors: none"
	
size:
	$(SIZE) $(TRG).elf