Speed up flashing

Makefile

@@ -13,7 +13,7 @@ rom.hex: $(PROJECT).out
 	$(OBJCOPY) -O ihex $(PROJECT).out rom.hex
 
 $(PROJECT).out: $(OBJECTS) config.h
-	$(CC) $(CFLAGS) -o $(PROJECT).out -Wl,-Map,$(PROJECT).map $(OBJECTS)
+	$(CC) $(CFLAGS) -o $(PROJECT).out -ffunction-sections -fdata-sections -Wl,--gc-sections,-Map,$(PROJECT).map $(OBJECTS)
 
 .c.o:
 	$(CC) $(CFLAGS) -c $< -o $@
@@ -22,7 +22,7 @@ clean:
 	rm -f *.o *.out *.map *.hex *~
 
 flash: rom.hex
-	avrdude -p m644p -c stk500v2 -P $(TTYPORT) -U flash:w:rom.hex:i
+	avrdude -p m644p -B 1 -c stk500v2 -P $(TTYPORT) -U flash:w:rom.hex:i
 
 setfuses:
 	# This sets the low fuse to use an external 7.3728MHz crystal,