initial commit

Makefile

@@ -0,0 +1,44 @@
+PRG            = twiboot
+OBJ            = main.o
+MCU_TARGET     = atmega8
+OPTIMIZE       = -Os
+
+DEFS           =
+LIBS           =
+
+# Override is only needed by avr-lib build system.
+override CFLAGS        = -g -Wall $(OPTIMIZE) -mmcu=$(MCU_TARGET) $(DEFS)
+override LDFLAGS       = -Wl,-Map,$(PRG).map,--section-start=.text=0x1C00
+
+CC             = avr-gcc
+OBJCOPY        = avr-objcopy
+OBJDUMP        = avr-objdump
+SIZE           = avr-size
+
+all: $(PRG).elf lst text
+	$(SIZE) -x -A $(PRG).elf
+
+$(PRG).elf: $(OBJ)
+	$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $^ $(LIBS)
+
+clean:
+	rm -rf *.o *.lst *.map $(PRG).elf *.hex *.bin
+
+lst:  $(PRG).lst
+
+%.lst: %.elf
+	$(OBJDUMP) -h -S $< > $@
+
+text: hex bin
+
+hex:  $(PRG).hex
+bin:  $(PRG).bin
+
+%.hex: %.elf
+	$(OBJCOPY) -j .text -j .data -O ihex $< $@
+
+%.bin: %.elf
+	$(OBJCOPY) -j .text -j .data -O binary $< $@
+
+install: text
+	uisp -dprog=avr910 -dserial=/dev/ttyS0 -dspeed=115200 -dpart=M8 --erase --upload if=$(PRG).hex