converted to git, reformatted code and made it compatible with recent…

… versions of avr-gcc and avr-libc

Signed-off-by: Christian Kroll <[email protected]>

.gitignore

@@ -0,0 +1,12 @@
+*.o
+*.d
+*.swp
+image.bin
+image_eeprom.bin
+image_eeprom.hex
+image_eeprom.srec
+image.elf
+image.hex
+image.lst
+image.map
+image.srec

Makefile

@@ -1,7 +1,81 @@
-MCU_TARGET=atmega8
-DEFS          = -DF_CPU=8000000 -DATMEGA8
+# Default values
+OBJ            = main.o
+OUT           ?= image
+MCU_TARGET    ?= atmega8
+MCU_CC        ?= avr-gcc
+OPTIMIZE      ?= -Os
+WARNINGS      ?= -Wall
+DEFS          ?= -DF_CPU=16000000
+CFLAGS        += -MMD -g -std=c99 -mmcu=$(MCU_TARGET) $(OPTIMIZE) $(WARNINGS) $(DEFS)
+ASFLAGS       ?= -g $(DEFS)
+LDFLAGS       ?= -Wl,-Map,$(OUT).map
 
-OBJ            = main.o 
+# External Tools
+OBJCOPY       ?= avr-objcopy
+OBJDUMP       ?= avr-objdump
+FLASH         ?= avrdude -c usbasp -p $(MCU_TARGET) -U flash:w:image.hex
 
-include ../../make/avr.mk
+#############################################################################
+# Rules
+all: $(OUT).elf lst text eeprom
 
+clean:
+	rm -rf $(OUT) *.o *.d *.lst *.map $(OUT).hex $(OUT)_eeprom.hex *.bin *.srec
+	rm -rf *.srec $(OUT).elf
+
+flash: $(OUT).hex
+	$(FLASHCMD)
+
+#############################################################################
+# Building Rules
+$(OUT).elf: $(OBJ)
+	$(MCU_CC) $(CFLAGS) $(LDFLAGS) -o $@ $^ $(LIBS)
+
+%.o: %.c
+	$(MCU_CC) $(CFLAGS) -c $<
+
+%.o: %.S
+	$(MCU_CC) -mmcu=$(MCU_TARGET) $(ASFLAGS) -c $<
+
+lst: $(OUT).lst
+
+%.lst: %.elf
+	$(OBJDUMP) -h -S $< > $@
+
+# Rules for building the .text rom images
+text: hex bin srec
+
+hex:  $(OUT).hex
+bin:  $(OUT).bin
+srec: $(OUT).srec
+
+%.hex: %.elf
+	$(OBJCOPY) -j .text -j .data -O ihex $< $@
+
+%.srec: %.elf
+	$(OBJCOPY) -j .text -j .data -O srec $< $@
+
+%.bin: %.elf
+	$(OBJCOPY) -j .text -j .data -O binary $< $@
+
+# Rules for building the .eeprom rom images
+
+eeprom: ehex ebin esrec
+
+ehex:  $(OUT)_eeprom.hex
+ebin:  $(OUT)_eeprom.bin
+esrec: $(OUT)_eeprom.srec
+
+%_eeprom.hex: %.elf
+	$(OBJCOPY) -j .eeprom --change-section-lma .eeprom=0 -O ihex $< $@
+
+%_eeprom.srec: %.elf
+	$(OBJCOPY) -j .eeprom --change-section-lma .eeprom=0 -O srec $< $@
+
+%_eeprom.bin: %.elf
+	$(OBJCOPY) -j .eeprom --change-section-lma .eeprom=0 -O binary $< $@
+
+DEPS := $(wildcard *.d)
+ifneq ($(DEPS),)
+include $(DEPS)
+endif